aboutsummaryrefslogblamecommitdiffstats
path: root/contrib/tools/python3/Python/Python-ast.c
blob: ecaff2041f9565ff2c1129f3e6c1c0b15f22bd38 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
8856
8857
8858
8859
8860
8861
8862
8863
8864
8865
8866
8867
8868
8869
8870
8871
8872
8873
8874
8875
8876
8877
8878
8879
8880
8881
8882
8883
8884
8885
8886
8887
8888
8889
8890
8891
8892
8893
8894
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
8916
8917
8918
8919
8920
8921
8922
8923
8924
8925
8926
8927
8928
8929
8930
8931
8932
8933
8934
8935
8936
8937
8938
8939
8940
8941
8942
8943
8944
8945
8946
8947
8948
8949
8950
8951
8952
8953
8954
8955
8956
8957
8958
8959
8960
8961
8962
8963
8964
8965
8966
8967
8968
8969
8970
8971
8972
8973
8974
8975
8976
8977
8978
8979
8980
8981
8982
8983
8984
8985
8986
8987
8988
8989
8990
8991
8992
8993
8994
8995
8996
8997
8998
8999
9000
9001
9002
9003
9004
9005
9006
9007
9008
9009
9010
9011
9012
9013
9014
9015
9016
9017
9018
9019
9020
9021
9022
9023
9024
9025
9026
9027
9028
9029
9030
9031
9032
9033
9034
9035
9036
9037
9038
9039
9040
9041
9042
9043
9044
9045
9046
9047
9048
9049
9050
9051
9052
9053
9054
9055
9056
9057
9058
9059
9060
9061
9062
9063
9064
9065
9066
9067
9068
9069
9070
9071
9072
9073
9074
9075
9076
9077
9078
9079
9080
9081
9082
9083
9084
9085
9086
9087
9088
9089
9090
9091
9092
9093
9094
9095
9096
9097
9098
9099
9100
9101
9102
9103
9104
9105
9106
9107
9108
9109
9110
9111
9112
9113
9114
9115
9116
9117
9118
9119
9120
9121
9122
9123
9124
9125
9126
9127
9128
9129
9130
9131
9132
9133
9134
9135
9136
9137
9138
9139
9140
9141
9142
9143
9144
9145
9146
9147
9148
9149
9150
9151
9152
9153
9154
9155
9156
9157
9158
9159
9160
9161
9162
9163
9164
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
10039
10040
10041
10042
10043
10044
10045
10046
10047
10048
10049
10050
10051
10052
10053
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
10124
10125
10126
10127
10128
10129
10130
10131
10132
10133
10134
10135
10136
10137
10138
10139
10140
10141
10142
10143
10144
10145
10146
10147
10148
10149
10150
10151
10152
10153
10154
10155
10156
10157
10158
10159
10160
10161
10162
10163
10164
10165
10166
10167
10168
10169
10170
10171
10172
10173
10174
10175
10176
10177
10178
10179
10180
10181
10182
10183
10184
10185
10186
10187
10188
10189
10190
10191
10192
10193
10194
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
10210
10211
10212
10213
10214
10215
10216
10217
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
10233
10234
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
10259
10260
10261
10262
10263
10264
10265
10266
10267
10268
10269
10270
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10388
10389
10390
10391
10392
10393
10394
10395
10396
10397
10398
10399
10400
10401
10402
10403
10404
10405
10406
10407
10408
10409
10410
10411
10412
10413
10414
10415
10416
10417
10418
10419
10420
10421
10422
10423
10424
10425
10426
10427
10428
10429
10430
10431
10432
10433
10434
10435
10436
10437
10438
10439
10440
10441
10442
10443
10444
10445
10446
10447
10448
10449
10450
10451
10452
10453
10454
10455
10456
10457
10458
10459
10460
10461
10462
10463
10464
10465
10466
10467
10468
10469
10470
10471
10472
10473
10474
10475
10476
10477
10478
10479
10480
10481
10482
10483
10484
10485
10486
10487
10488
10489
10490
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
10608
10609
10610
10611
10612
10613
10614
10615
10616
10617
10618
10619
10620
10621
10622
10623
10624
10625
10626
10627
10628
10629
10630
10631
10632
10633
10634
10635
10636
10637
10638
10639
10640
10641
10642
10643
10644
10645
10646
10647
10648
10649
10650
10651
10652
10653
10654
10655
10656
10657
10658
10659
10660
10661
10662
10663
10664
10665
10666
10667
10668
10669
10670
10671
10672
10673
10674
10675
10676
10677
10678
10679
10680
10681
10682
10683
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
10821
10822
10823
10824
10825
10826
10827
10828
10829
10830
10831
10832
10833
10834
10835
10836
10837
10838
10839
10840
10841
10842
10843
10844
10845
10846
10847
10848
10849
10850
10851
10852
10853
10854
10855
10856
11317
11318
11319
11320
11321
11322
11323
11324
11325
11326
11327
11328
11329
11330
11331
11332
11333
11334
11335
11336
11337
11338
11339
11340
11341
11342
11343
11344
11345
11346
11347
11348
11349
11350
11351
11352
11353
11354
11355
11356
11357
11358
11359
11360
11361
11362
11363
11364
11365
11366
11367
11368
11369
11370
11371
11372
11373
11374
11375
11376
11377
11378
11379
11380
11381
11382
11383
11384
11385
11386
11387
11388
11389
11390
11391
11392
11393
11394
11395
11396
11397
11398
11399
11400
11401
11402
11403
11404
11405
11406
11407
11408
11409
11410
11411
11412
11413
11414
11415
11416
11417
11418
11419
11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
11431
11432
11433
11434
11435
11436
11437
11438
11439
11440
11441
11442
11443
11444
11445
11446
11447
11448
11449
11450
11451
11452
11453
11454
11455
11456
11457
11458
11459
11460
11461
11462
11463
11464
11465
11466
11467
11468
11469
11470
11471
11472
11473
11474
11475
11476
11477
11478
11479
11480
11481
11482
11483
11484
11485
11486
11487
11488
11489
11490
11491
11492
11493
11494
11495
11496
11497
11498
11499
11500
11501
11502
11503
11504
11505
11506
11507
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
11521
11522
11523
11524
11525
11526
11527
11528
11529
11530
11531
11532
11533
11534
11535
11536
11537
11538
11539
11540
11541
11542
11543
11544
11545
11546
11547
11548
11549
11550
11551
11552
11553
11554
11555
11556
11557
11558
11559
11560
11561
11562
11563
11564
11565
11566
11567
11568
11569
11570
11571
11572
11573
11574
11575
11576
11577
11578
11579
11580
11581
11582
11583
11584
11585
11586
11587
11588
11589
11590
11591
11592
11593
11594
11595
11596
11597
11598
11599
11600
11601
11602
11603
11604
11605
11606
11607
11608
11609
11610
11611
11612
11613
11614
11615
11616
11617
11618
11619
11620
11621
11622
11623
11624
11625
11626
11627
11628
11629
11630
11631
11632
11633
11634
11635
11636
11637
11638
11639
11640
11641
11642
11643
11644
11645
11646
11647
11648
11649
11650
11651
11652
11653
11654
11655
11656
11657
11658
11659
11660
11661
11662
11663
11664
11665
11666
11667
11668
11669
11670
11671
11672
11673
11674
11675
11676
11677
11678
11679
11680
11681
11682
11683
11684
11685
11686
11687
11688
11689
11690
11691
11692
11693
11694
11695
11696
11697
11698
11699
11700
11701
11702
11703
11704
11705
11706
11707
11708
11709
11710
11711
11712
11713
11714
11715
11716
11717
11718
11719
11720
11721
11722
11723
11724
11725
11726
11727
11728
11729
11730
11731
11732
11733
11734
11735
11736
11737
11738
11739
11740
11741
11742
11743
11744
11745
11746
11747
11748
11749
11750
11751
11752
11753
11754
11755
11756
11757
11758
11759
11760
11761
11762
11763
11764
11765
11766
11767
11768
11769
11770
11771
11772
11773
11774
11775
11776
11777
11778
11779
11780
11781
11782
11783
11784
11785
11786
11787
11788
11789
11790
11791
11792
11793
11794
11795
11796
11797
11798
11799
11800
11801
11802
11803
11804
11805
11806
11807
11808
11809
11810
11811
11812
11813
11814
11815
11816
11817
11818
11819
11820
11821
11822
11823
12782
12783
12784
12785
12786
12787
12788
12789
12790
12791
12792
12793
12794
12795
12796
12797
12798
12799
12800
12801
12802
12803
12804
12805
12806
12807
12808
12809
12810
12811
12812
12813
12814
12815
12816
12817
12818
12819
12820
12821
12822
12823
12824
12825
12826
12827
12828
12829
12830
12831
12832
12833
12834
12835
12836
12837
12838
12839
12840
12841
12842
12843
12844
12845
12846
12847
12848
12849
12850
12851
12852
12853
12854
12855
12856
12857
12858
12859
12860
12861
12862
12863
12864
12865
12866
12867
12868
12869
12870
12871
12872
12873
12874
12875
12876
12877
12878
12879
12880
12881
12882
12883
12884
12885
12886
12887
12888
12889
12890
12891
12892
12893
12894
12895
12896
12897
12898
12899
12900
12901
12902
12903
12904
12905
12906
12907
12908
12909
12910
12911
12912
12913
12914
12915
12916
12917
12918
12919
12920
12921
12922
12923
12924
12925
12926
12927
12928
12929
12930
12931
12932
12933
12934
12935
12936
12937
12938
12939
12940
12941
12942
12943
12944
12945
12946
12947
12948
12949
12950
12951
12952
12953
12954
12955
12956
12957
12958
12959
12960
12961
12962
12963
12964
12965
12966
12967
12968
12969
12970
12971
12972
12973
12974
12975
12976
12977
12978
12979
12980
12981
12982
12983
12984
12985
12986
12987
12988
12989
12990
12991
12992
12993
12994
12995
12996
12997
12998
12999
13000
13001
13002
13003
13004
13005
13006
13007
13008
13009
13010
13011
13012
13013
13014
13015
13016
13017
13018
13019
13020
13021
13022
13023
13024
13025
13026
13027
13028
13029
13030
13031
13032
13033
13034
13035
13036
13037
13038
13039
13040
13041
13042
13043
13044
13045
13046
13047
13048
13049
13050
13051
13052
13053
13054
13055
13056
13057
13058
13059
13060
13061
13062
13063
13064
13065
13066
13067
13068
13069
13070
13071
13072
13073
13074
13075
13076
13077
13078
13079
13080
13081
13082
13083
13084
13085
13086
13087
13088
13089
13090
13091
13092
13093
13094
13095
13096
13097
13098
13099
13100
13101
13102
13103
13104
13105
13106
13107
13108









                                                              



                                                                 
























































































































                                                           
                                    

















                                      
                                    
                                     
                                       


























                                    
                           











































































                                        
                                     





                                   
                                                                






















                                                                                                 
                                                                               































































                                                                                                 
                                                                                           


















                                                                                 
                                                        
 
                                                                               


















                                                 
                                                                       





                                                
                  






                                                     
                  





                                             
                  










                                           



                                              


























































































                                               
                                                                       














































































































                                                   










                                                                               










                                                        
                                                                      



                                                  
                                                                            







                                              
                                                                               









                                              
                                                                          








                                                  
                                                                        








                                                
                                                                           


                                             
                                                                             









                                                  
                                                                          




























                                                   
                                                                              


                                               
















                                                                             
























































































































































































































                                                                                                  
                                                                                                          





                                        
                                                                  







                                          
                                                                                                                 
 



                                



                                         
                                                                                                             













                                                                                                            


                              
     







                                                                                                              
                          
































































































                                                                                                     

                                                                                                                                                                    

                                                                          
                                                                            



























                                                                                                   
                                                                                                                                                        







                                                                               
                                                                                                                                                             






                                                                               
                                                                                                                                
















                                                                             


                                                                           


































































































































































































































































































































































































































































































































































































































































                                                                                                                               






















                                                                               
 






































                                                                               
                                                                     































































                                                                              

                                                                               




















                                                                    
                                               








                                                                              

                                                                               




















                                                                         
                                                    








                                                                               
                                                                              














                                                                 
                                            

































































                                                                              




























                                                                         

















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































                                                                                

































































                                                                              
         
                                                                        





                                           
                                                              







                                                                        
                                                                        


                                                               
                                                                 








                                                                       
                                                                             








                                                               
                                                                  







                                                               
                                                                   



                                                                   
                                                                       




                                                                  
                              
                  
                              




                       
                                                                         





                                           
                                                              







                                                                        
                                                                         


                                                               
                                                                        


                                                               
                                                                             



                                                               
                                                                        



                                                                         
                                                                      


                                                                  
                                                                             


                                                                       





                                                                      



                                                          
                                                                              


                                                               
                                                                             


                                                               
                                                                   



                                                               
                                           




                                                                             
                                                                           


                                                                  
                                                                                  


                                                                       





                                                                          



                                                   
                                                                      


                                                               
                                                                           



                                                                
                                                                              



                                                                   
                                                                          



                                                               
                                                                     



                                                                         





                                                                      



                                                   
                                                               







                                                                
                                                                           








                                                                  
                                                                           



                                                                  
                                                               


                                                                
                                                                        



                                                                       




















                                                                      


                                                   
                                                                   


                                                                 
                                                                   


                                                             
                                                                  







                                                                
                                                                   


                                                                 
                                                                       


                                                                     
                                                                  


                                                                
                                                                  







                                                                 
                                                             


                                                                 
                                                           


                                                               
                                                                     


                                                               
                                                                       


                                                                 
                                                                     







                                                                       
                                                                  


                                                                 
                                                                


                                                               
                                                                          



                                                               
                                                                            



                                                                 
                                                                          







                                                                       
                                                             


                                                               
                                                                       


                                                               
                                                                         







                                                                 
                                                          


                                                               
                                                                    


                                                               
                                                                      







                                                                 
                                                                       



                                                                
                                                                      


                                                               
                                                                      







                                                                       
                                                                            



                                                                
                                                                           



                                                               
                                                                           







                                                                       
                                                                


                                                                  
                                                                        








                                                                
                                                            


                                                              
                                                              







                                                                
                                                                     


                                                               
                                                                         



                                                                   
                                                                       


                                                                 
                                                                          








                                                                    
                                                                         


                                                               
                                                                             



                                                                   
                                                                           



                                                                 
                                                                              








                                                                    
                                                              


                                                               
                                                             







                                                              
                                                                         








                                                                
                                                                          


                                                                 
                                                                             



                                                                
                                                                  







                                                                
                                                                         








                                                                
                                                                           








                                                                
                                                             



















                                                                
                                                  


                                                           
                                                      


                                                               
                                                      


                                                               
                                                          


                                                                   
                              
                  
                              




                       
                                                                         





                                           
                                                              







                                                                        
                                                              


                                                             
                                                                          








                                                                 
                                                                   


                                                                 
                                                                  







                                                                
                                                             


                                                               
                                                               


                                                             
                                                              







                                                                
                                                                


                                                             
                                                                  







                                                                  
                                                                   


                                                               
                                                              







                                                               
                                                             


                                                               
                                                             


                                                               
                                                               







                                                                 
                                                                      


                                                               
                                                                        







                                                                 
                                                                     







                                                               
                                                               


                                                              
                                                                 








                                                                     
                                                              


                                                              
                                                                               








                                                                     
                                                               


                                                              
                                                                 


                                                                
                                                                 








                                                                     
                                                                   


                                                              
                                                                     








                                                                     
                                                              







                                                                
                                                              







                                                                
                                                                  







                                                                
                                                               







                                                               
                                                                                                                     



                                                              
                                                                                







                                                                      
                                                            


                                                               
                                                                      


                                                               
                                                                          








                                                                   
                                                                       


                                                                
                                                                           


                                                                     
                                                                             







                                                                      
                                                                             








                                                                 
                                                                     


                                                                
                                                                  







                                                               
                                                                  


                                                                
                                                                       


                                                               
                                                                        







                                                              
                                                                  


                                                                
                                                                  


                                                                
                                                                        







                                                              
                                                                


                                                                
                                                                      







                                                              
                                                                


                                                             
                                                                   







                                                              
                                                                      


                                                               
                                                                   







                                                              
                                                                       


                                                               
                                                                    







                                                              
                                                              


                                                                
                                                              


                                                                
                                                             




                                                               
                                                  


                                                           
                                                      


                                                               
                                                      


                                                               
                                                          


                                                                   
                              
                  
                              



                       
                                                                        

                  
                                                    
                   
                                                     
                 
                                                   

                     
                                                                           

                 
                                                   
                
                                                  

                     
                                                                             

                 
                                                   
                 
                                                   
                  
                                                    
                     
                                                       
                 
                                                   
                 
                                                   
                 
                                                   
                    
                                                      
                    
                                                      
                   
                                                     
                    
                                                      
                    
                                                      
                      
                                                        

                     
                                                                            

                    
                                                      
                 
                                                   
                  
                                                    
                  
                                                    

                     
                                                                          

                
                                                  
                   
                                                     
                
                                                  
                 
                                                   
                
                                                  
                 
                                                   
                
                                                  
                   
                                                     
                
                                                  
                   
                                                     


                     
                                                                              





                                              
                                                              





                                                                        
                                                   


                                                             
                                                 


                                                           
                                                                         


                                                          
                                                    


                                                               
                              
                  
                              




                       
                                                                              





                                              
                                                              







                                                                        
                                                                     


                                                               
                                                                           


                                                               
                                                                               





                                                               
                                                  


                                                           
                                                      


                                                               
                                                      


                                                               
                                                          


                                                                   
                              
                  
                              




                       
                                                                              





                                           
                                                              





                                                                        
                                                                                


                                                                  
                                                                         


                                                           
                                                  


                                                             
                                                                               


                                                                 
                                                                  


                                                                  
                                                 


                                                            
                                                                              


                                                               
                              
                  
                              




                       
                                                                        





                                           
                                                              





                                                                        
                                                      


                                                          
                                                       


                                                                 
                                                           


                                                                   
                                                  


                                                           
                                                      


                                                               
                                                      


                                                               
                                                          


                                                                   
                              
                  
                              




                       
                                                                            





                                           
                                                              





                                                                        
                                                      


                                                          
                                                  


                                                            
                                                  


                                                           
                                                      


                                                               
                                                      


                                                               
                                                          


                                                                   
                              
                  
                              




                       
                                                                          





                                           
                                                              





                                                                        
                                                       


                                                           
                                                         


                                                             
                                                  


                                                           
                                                      


                                                               
                                                      


                                                               
                                                          


                                                                   
                              
                  
                              




                       
                                                                             





                                           
                                                              





                                                                        
                                                         


                                                                   
                                                          


                                                                    
                              
                  
                              




                       
                                                                               





                                           
                                                              





                                                                        
                                                       


                                                              
                                                  


                                                            
                                                                          


                                                           
                              
                  
                              




                       
                                                                            





                                           
                                                              







                                                                        
                                                                   







                                                                
                                                                           







                                                                
                                                                    








                                                                   
                                                                              



                                                               
                                                                   



                                                                   
                                                                          







                                                               
                                                                 


                                                              
                                                                 



                                                                   
                                                                  



                                                                    
                                                                     








                                                                       
                                                                       







                                                               
                                                                     


                                                                  
                                                                     







                                                               
                                                                             





                                                                   
                                                  


                                                           
                                                      


                                                               
                                                      


                                                               
                                                          


                                                                   
                              
                  
                              




                       
                                                                                





                                           
                                                              







                                                                        
                                                                   


                                                                 
                                                                   




                                                              
                              
                  
                              



                       














































































                                                                               
























                                                                                


                                
         
         










                                                                                                                                
                                                                    

















                                                                                                               


                                
         
         










                                                                                                                                        
                                                                    





























                                                                                                                       


                                
         
         










                                                                                                                                     
                                                                    



























































                                                                                                                    


                                
         
         










                                                                                                                                          
                                                                    










































































































































                                                                                                                         
                                         





































                                                                                                 


                                
         
         










                                                                                                                                     
                                                                    

















                                                                                                                    


                                
         
         










                                                                                                                                               
                                                                    















































                                                                                                                              




































                                                                                                                                            
                                                                            

                                                                         













                                              
                                         





































                                                                                                      


                                
         
         










                                                                                                                                          
                                                                    

















                                                                                                                         


                                
         
         










                                                                                                                                                    
                                                                    















































                                                                                                                                   























































                                                                                                                                                 




















                                                                                              


                                
         
         










                                                                                                                                   
                                                                    

















                                                                                                                  


                                
         
         










                                                                                                                                      
                                                                    

















                                                                                                                     


                                
         
         










                                                                                                                                  
                                                                    

















                                                                                                                 


                                
         
         










                                                                                                                                            
                                                                    













                                                                                                                           




































                                                                                                                                         
                                                                           
                                                                           











































                                                                            


                                
         
         










                                                                                                                                   
                                                                    
































                                                                                                                  


                                
         
         










                                                                                                                                   
                                                                    




















































                                                                                                                  





















































































                                                                                                                                          






































































































































































































                                                                                                     


                                
         
         










                                                                                                                             
                                                                    

















                                                                                                            


                                
         
         










                                                                                                                               
                                                                    





















































































                                                                                                              


                                
         
         










                                                                                                                                  
                                                                    

















                                                                                                                 


                                
         
         










                                                                                                                                    
                                                                    



































































                                                                                                                   


                                
         
         










                                                                                                                               
                                                                    

















                                                                                                              


                                
         
         










                                                                                                                                 
                                                                    

















































                                                                                                                


                                
         
         










                                                                                                                            
                                                                    

















                                                                                                           


                                
         
         










                                                                                                                              
                                                                    
































                                                                                                             


                                
         
         










                                                                                                                               
                                                                    

















                                                                                                              


                                
         
         










                                                                                                                              
                                                                    

















































                                                                                                             


                                
         
         










                                                                                                                                    
                                                                    

















                                                                                                                   


                                
         
         










                                                                                                                                   
                                                                    

































































                                                                                                                  


                                
         
         










                                                                                                                                
                                                                    

















































































                                                                                                               


                                
         
         










                                                                                                                             
                                                                    

















                                                                                                            


                                
         
         










                                                                                                                                 
                                                                    

















                                                                                                                


                                
         
         










                                                                                                                               
                                                                    

















                                                                                                              


                                
         
         










                                                                                                                                  
                                                                    

































                                                                                                                 


                                
         
         










                                                                                                                                 
                                                                    

















                                                                                                                


                                
         
         










                                                                                                                                     
                                                                    

















                                                                                                                    


                                
         
         










                                                                                                                                   
                                                                    

















                                                                                                                  


                                
         
         










                                                                                                                                      
                                                                    














































































                                                                                                                     


                                
         
         










                                                                                                                                 
                                                                    

















































                                                                                                                


                                
         
         










                                                                                                                                     
                                                                    















































                                                                                                                    


                                
         
         










                                                                                                                                 
                                                                    






























                                                                                                                


                                
         
         










                                                                                                                                   
                                                                    














































































































































































































                                                                                                                  


                                
         
         










                                                                                                                                  
                                                                    



















































































































































































































































































































                                                                                                                 


                                
         
         










                                                                                                                              
                                                                    

















                                                                                                             


                                
         
         










                                                                                                                                
                                                                    






























                                                                                                               


                                
         
         










                                                                                                                             
                                                                    
















































                                                                                                            


                                
         
         










                                                                                                                                        
                                                                    
















































                                                                                                                       


                                
         
         










                                                                                                                                       
                                                                    


































































                                                                                                                      


                                
         
         










                                                                                                                                        
                                                                    
















































                                                                                                                       


                                
         
         










                                                                                                                                            
                                                                    











































































































































                                                                                                                           


                                
         
         










                                                                                                                                
                                                                    

















                                                                                                               


                                
         
         










                                                                                                                                        
                                                                    

















































                                                                                                                       


                                
         
         










                                                                                                                              
                                                                    

















                                                                                                             


                                
         
         










                                                                                                                                  
                                                                    

































































































                                                                                                                 


                                
         
         










                                                                                                                                     
                                                                    



















































































































































































































































































































                                                                                                                    


                                
         
         










                                                                                                                              
                                                                    
















































                                                                                                             


                                
         
         










                                                                                                                               
                                                                    



















































































































































































































































































































































































































































































                                                                                                              


                            
     
     










                                                                                                                                  
                                                                











































































































































































                                                                                                                 


                                
         
         










                                                                                                                                       
                                                                    










































                                                                                                                      


                            
     
     










                                                                                                                                      
                                                                

















                                                                                                                     


                            
     
     










                                                                                                                               
                                                                


































                                                                                                              


                            
     
     










                                                                                                                                     
                                                                

















                                                                                                                    


                            
     
     










                                                                                                                                      
                                                                


































                                                                                                                     


                            
     
     










                                                                                                                                   
                                                                

























































































































































































































































































































































































































































































































                                                                                                                  


                            
     
     










                                                                                                                                
                                                                


















































































































































































                                                                                                               


                                
         
         










                                                                                                                                           
                                                                    
































                                                                                                                          


                                
         
         










                                                                                                                                      
                                                                    

















                                                                                                                     


                                
         
         










                                                                                                                                          
                                                                    



































































                                                                                                                         


                                
         
         










                                                                                                                                        
                                                                    

















                                                                                                                       


                                
         
         










                                                                                                                                         
                                                                    

















                                                                                                                        


                                
         
         










                                                                                                                                            
                                                                    













































































































                                                                                                                           


                                
         
         










                                                                                                                                     
                                                                    




























































































                                                                                                                    






































































































































































































                                                                                                      
























































                                                                               

                                                                           





































































































































































































































































































































                                                                               











                                                                               



                                             
                                                                         























                                                                            
                                              
                                                 
                    
     
                            
                                               
                                                                            
                                               
                                                      
 
                                                      
                                                                    
                                                                       
                                                                             
                                                              


















































                                                                            
// File automatically generated by Parser/asdl_c.py.

#include "Python.h"
#include "pycore_ast.h"
#include "pycore_ast_state.h"     // struct ast_state
#include "pycore_ceval.h"         // _Py_EnterRecursiveCall
#include "pycore_interp.h"        // _PyInterpreterState.ast
#include "pycore_pystate.h"       // _PyInterpreterState_GET()
#include "structmember.h"
#include <stddef.h>

struct validator {
    int recursion_depth;            /* current recursion depth */
    int recursion_limit;            /* recursion limit */
};

// Forward declaration
static int init_types(struct ast_state *state);

static struct ast_state*
get_ast_state(void)
{
    PyInterpreterState *interp = _PyInterpreterState_GET();
    struct ast_state *state = &interp->ast;
    if (!init_types(state)) {
        return NULL;
    }
    return state;
}

void _PyAST_Fini(PyInterpreterState *interp)
{
    struct ast_state *state = &interp->ast;

    Py_CLEAR(state->AST_type);
    Py_CLEAR(state->Add_singleton);
    Py_CLEAR(state->Add_type);
    Py_CLEAR(state->And_singleton);
    Py_CLEAR(state->And_type);
    Py_CLEAR(state->AnnAssign_type);
    Py_CLEAR(state->Assert_type);
    Py_CLEAR(state->Assign_type);
    Py_CLEAR(state->AsyncFor_type);
    Py_CLEAR(state->AsyncFunctionDef_type);
    Py_CLEAR(state->AsyncWith_type);
    Py_CLEAR(state->Attribute_type);
    Py_CLEAR(state->AugAssign_type);
    Py_CLEAR(state->Await_type);
    Py_CLEAR(state->BinOp_type);
    Py_CLEAR(state->BitAnd_singleton);
    Py_CLEAR(state->BitAnd_type);
    Py_CLEAR(state->BitOr_singleton);
    Py_CLEAR(state->BitOr_type);
    Py_CLEAR(state->BitXor_singleton);
    Py_CLEAR(state->BitXor_type);
    Py_CLEAR(state->BoolOp_type);
    Py_CLEAR(state->Break_type);
    Py_CLEAR(state->Call_type);
    Py_CLEAR(state->ClassDef_type);
    Py_CLEAR(state->Compare_type);
    Py_CLEAR(state->Constant_type);
    Py_CLEAR(state->Continue_type);
    Py_CLEAR(state->Del_singleton);
    Py_CLEAR(state->Del_type);
    Py_CLEAR(state->Delete_type);
    Py_CLEAR(state->DictComp_type);
    Py_CLEAR(state->Dict_type);
    Py_CLEAR(state->Div_singleton);
    Py_CLEAR(state->Div_type);
    Py_CLEAR(state->Eq_singleton);
    Py_CLEAR(state->Eq_type);
    Py_CLEAR(state->ExceptHandler_type);
    Py_CLEAR(state->Expr_type);
    Py_CLEAR(state->Expression_type);
    Py_CLEAR(state->FloorDiv_singleton);
    Py_CLEAR(state->FloorDiv_type);
    Py_CLEAR(state->For_type);
    Py_CLEAR(state->FormattedValue_type);
    Py_CLEAR(state->FunctionDef_type);
    Py_CLEAR(state->FunctionType_type);
    Py_CLEAR(state->GeneratorExp_type);
    Py_CLEAR(state->Global_type);
    Py_CLEAR(state->GtE_singleton);
    Py_CLEAR(state->GtE_type);
    Py_CLEAR(state->Gt_singleton);
    Py_CLEAR(state->Gt_type);
    Py_CLEAR(state->IfExp_type);
    Py_CLEAR(state->If_type);
    Py_CLEAR(state->ImportFrom_type);
    Py_CLEAR(state->Import_type);
    Py_CLEAR(state->In_singleton);
    Py_CLEAR(state->In_type);
    Py_CLEAR(state->Interactive_type);
    Py_CLEAR(state->Invert_singleton);
    Py_CLEAR(state->Invert_type);
    Py_CLEAR(state->IsNot_singleton);
    Py_CLEAR(state->IsNot_type);
    Py_CLEAR(state->Is_singleton);
    Py_CLEAR(state->Is_type);
    Py_CLEAR(state->JoinedStr_type);
    Py_CLEAR(state->LShift_singleton);
    Py_CLEAR(state->LShift_type);
    Py_CLEAR(state->Lambda_type);
    Py_CLEAR(state->ListComp_type);
    Py_CLEAR(state->List_type);
    Py_CLEAR(state->Load_singleton);
    Py_CLEAR(state->Load_type);
    Py_CLEAR(state->LtE_singleton);
    Py_CLEAR(state->LtE_type);
    Py_CLEAR(state->Lt_singleton);
    Py_CLEAR(state->Lt_type);
    Py_CLEAR(state->MatMult_singleton);
    Py_CLEAR(state->MatMult_type);
    Py_CLEAR(state->MatchAs_type);
    Py_CLEAR(state->MatchClass_type);
    Py_CLEAR(state->MatchMapping_type);
    Py_CLEAR(state->MatchOr_type);
    Py_CLEAR(state->MatchSequence_type);
    Py_CLEAR(state->MatchSingleton_type);
    Py_CLEAR(state->MatchStar_type);
    Py_CLEAR(state->MatchValue_type);
    Py_CLEAR(state->Match_type);
    Py_CLEAR(state->Mod_singleton);
    Py_CLEAR(state->Mod_type);
    Py_CLEAR(state->Module_type);
    Py_CLEAR(state->Mult_singleton);
    Py_CLEAR(state->Mult_type);
    Py_CLEAR(state->Name_type);
    Py_CLEAR(state->NamedExpr_type);
    Py_CLEAR(state->Nonlocal_type);
    Py_CLEAR(state->NotEq_singleton);
    Py_CLEAR(state->NotEq_type);
    Py_CLEAR(state->NotIn_singleton);
    Py_CLEAR(state->NotIn_type);
    Py_CLEAR(state->Not_singleton);
    Py_CLEAR(state->Not_type);
    Py_CLEAR(state->Or_singleton);
    Py_CLEAR(state->Or_type);
    Py_CLEAR(state->ParamSpec_type);
    Py_CLEAR(state->Pass_type);
    Py_CLEAR(state->Pow_singleton);
    Py_CLEAR(state->Pow_type);
    Py_CLEAR(state->RShift_singleton);
    Py_CLEAR(state->RShift_type);
    Py_CLEAR(state->Raise_type);
    Py_CLEAR(state->Return_type);
    Py_CLEAR(state->SetComp_type);
    Py_CLEAR(state->Set_type);
    Py_CLEAR(state->Slice_type);
    Py_CLEAR(state->Starred_type);
    Py_CLEAR(state->Store_singleton);
    Py_CLEAR(state->Store_type);
    Py_CLEAR(state->Sub_singleton);
    Py_CLEAR(state->Sub_type);
    Py_CLEAR(state->Subscript_type);
    Py_CLEAR(state->TryStar_type);
    Py_CLEAR(state->Try_type);
    Py_CLEAR(state->Tuple_type);
    Py_CLEAR(state->TypeAlias_type);
    Py_CLEAR(state->TypeIgnore_type);
    Py_CLEAR(state->TypeVarTuple_type);
    Py_CLEAR(state->TypeVar_type);
    Py_CLEAR(state->UAdd_singleton);
    Py_CLEAR(state->UAdd_type);
    Py_CLEAR(state->USub_singleton);
    Py_CLEAR(state->USub_type);
    Py_CLEAR(state->UnaryOp_type);
    Py_CLEAR(state->While_type);
    Py_CLEAR(state->With_type);
    Py_CLEAR(state->YieldFrom_type);
    Py_CLEAR(state->Yield_type);
    Py_CLEAR(state->__dict__);
    Py_CLEAR(state->__doc__);
    Py_CLEAR(state->__match_args__);
    Py_CLEAR(state->__module__);
    Py_CLEAR(state->_attributes);
    Py_CLEAR(state->_fields);
    Py_CLEAR(state->alias_type);
    Py_CLEAR(state->annotation);
    Py_CLEAR(state->arg);
    Py_CLEAR(state->arg_type);
    Py_CLEAR(state->args);
    Py_CLEAR(state->argtypes);
    Py_CLEAR(state->arguments_type);
    Py_CLEAR(state->asname);
    Py_CLEAR(state->ast);
    Py_CLEAR(state->attr);
    Py_CLEAR(state->bases);
    Py_CLEAR(state->body);
    Py_CLEAR(state->boolop_type);
    Py_CLEAR(state->bound);
    Py_CLEAR(state->cases);
    Py_CLEAR(state->cause);
    Py_CLEAR(state->cls);
    Py_CLEAR(state->cmpop_type);
    Py_CLEAR(state->col_offset);
    Py_CLEAR(state->comparators);
    Py_CLEAR(state->comprehension_type);
    Py_CLEAR(state->context_expr);
    Py_CLEAR(state->conversion);
    Py_CLEAR(state->ctx);
    Py_CLEAR(state->decorator_list);
    Py_CLEAR(state->defaults);
    Py_CLEAR(state->elt);
    Py_CLEAR(state->elts);
    Py_CLEAR(state->end_col_offset);
    Py_CLEAR(state->end_lineno);
    Py_CLEAR(state->exc);
    Py_CLEAR(state->excepthandler_type);
    Py_CLEAR(state->expr_context_type);
    Py_CLEAR(state->expr_type);
    Py_CLEAR(state->finalbody);
    Py_CLEAR(state->format_spec);
    Py_CLEAR(state->func);
    Py_CLEAR(state->generators);
    Py_CLEAR(state->guard);
    Py_CLEAR(state->handlers);
    Py_CLEAR(state->id);
    Py_CLEAR(state->ifs);
    Py_CLEAR(state->is_async);
    Py_CLEAR(state->items);
    Py_CLEAR(state->iter);
    Py_CLEAR(state->key);
    Py_CLEAR(state->keys);
    Py_CLEAR(state->keyword_type);
    Py_CLEAR(state->keywords);
    Py_CLEAR(state->kind);
    Py_CLEAR(state->kw_defaults);
    Py_CLEAR(state->kwarg);
    Py_CLEAR(state->kwd_attrs);
    Py_CLEAR(state->kwd_patterns);
    Py_CLEAR(state->kwonlyargs);
    Py_CLEAR(state->left);
    Py_CLEAR(state->level);
    Py_CLEAR(state->lineno);
    Py_CLEAR(state->lower);
    Py_CLEAR(state->match_case_type);
    Py_CLEAR(state->mod_type);
    Py_CLEAR(state->module);
    Py_CLEAR(state->msg);
    Py_CLEAR(state->name);
    Py_CLEAR(state->names);
    Py_CLEAR(state->op);
    Py_CLEAR(state->operand);
    Py_CLEAR(state->operator_type);
    Py_CLEAR(state->ops);
    Py_CLEAR(state->optional_vars);
    Py_CLEAR(state->orelse);
    Py_CLEAR(state->pattern);
    Py_CLEAR(state->pattern_type);
    Py_CLEAR(state->patterns);
    Py_CLEAR(state->posonlyargs);
    Py_CLEAR(state->rest);
    Py_CLEAR(state->returns);
    Py_CLEAR(state->right);
    Py_CLEAR(state->simple);
    Py_CLEAR(state->slice);
    Py_CLEAR(state->step);
    Py_CLEAR(state->stmt_type);
    Py_CLEAR(state->subject);
    Py_CLEAR(state->tag);
    Py_CLEAR(state->target);
    Py_CLEAR(state->targets);
    Py_CLEAR(state->test);
    Py_CLEAR(state->type);
    Py_CLEAR(state->type_comment);
    Py_CLEAR(state->type_ignore_type);
    Py_CLEAR(state->type_ignores);
    Py_CLEAR(state->type_param_type);
    Py_CLEAR(state->type_params);
    Py_CLEAR(state->unaryop_type);
    Py_CLEAR(state->upper);
    Py_CLEAR(state->value);
    Py_CLEAR(state->values);
    Py_CLEAR(state->vararg);
    Py_CLEAR(state->withitem_type);

    Py_CLEAR(_Py_INTERP_CACHED_OBJECT(interp, str_replace_inf));

#if !defined(NDEBUG)
    state->initialized = -1;
#else
    state->initialized = 0;
#endif
}

static int init_identifiers(struct ast_state *state)
{
    if ((state->__dict__ = PyUnicode_InternFromString("__dict__")) == NULL) return 0;
    if ((state->__doc__ = PyUnicode_InternFromString("__doc__")) == NULL) return 0;
    if ((state->__match_args__ = PyUnicode_InternFromString("__match_args__")) == NULL) return 0;
    if ((state->__module__ = PyUnicode_InternFromString("__module__")) == NULL) return 0;
    if ((state->_attributes = PyUnicode_InternFromString("_attributes")) == NULL) return 0;
    if ((state->_fields = PyUnicode_InternFromString("_fields")) == NULL) return 0;
    if ((state->annotation = PyUnicode_InternFromString("annotation")) == NULL) return 0;
    if ((state->arg = PyUnicode_InternFromString("arg")) == NULL) return 0;
    if ((state->args = PyUnicode_InternFromString("args")) == NULL) return 0;
    if ((state->argtypes = PyUnicode_InternFromString("argtypes")) == NULL) return 0;
    if ((state->asname = PyUnicode_InternFromString("asname")) == NULL) return 0;
    if ((state->ast = PyUnicode_InternFromString("ast")) == NULL) return 0;
    if ((state->attr = PyUnicode_InternFromString("attr")) == NULL) return 0;
    if ((state->bases = PyUnicode_InternFromString("bases")) == NULL) return 0;
    if ((state->body = PyUnicode_InternFromString("body")) == NULL) return 0;
    if ((state->bound = PyUnicode_InternFromString("bound")) == NULL) return 0;
    if ((state->cases = PyUnicode_InternFromString("cases")) == NULL) return 0;
    if ((state->cause = PyUnicode_InternFromString("cause")) == NULL) return 0;
    if ((state->cls = PyUnicode_InternFromString("cls")) == NULL) return 0;
    if ((state->col_offset = PyUnicode_InternFromString("col_offset")) == NULL) return 0;
    if ((state->comparators = PyUnicode_InternFromString("comparators")) == NULL) return 0;
    if ((state->context_expr = PyUnicode_InternFromString("context_expr")) == NULL) return 0;
    if ((state->conversion = PyUnicode_InternFromString("conversion")) == NULL) return 0;
    if ((state->ctx = PyUnicode_InternFromString("ctx")) == NULL) return 0;
    if ((state->decorator_list = PyUnicode_InternFromString("decorator_list")) == NULL) return 0;
    if ((state->defaults = PyUnicode_InternFromString("defaults")) == NULL) return 0;
    if ((state->elt = PyUnicode_InternFromString("elt")) == NULL) return 0;
    if ((state->elts = PyUnicode_InternFromString("elts")) == NULL) return 0;
    if ((state->end_col_offset = PyUnicode_InternFromString("end_col_offset")) == NULL) return 0;
    if ((state->end_lineno = PyUnicode_InternFromString("end_lineno")) == NULL) return 0;
    if ((state->exc = PyUnicode_InternFromString("exc")) == NULL) return 0;
    if ((state->finalbody = PyUnicode_InternFromString("finalbody")) == NULL) return 0;
    if ((state->format_spec = PyUnicode_InternFromString("format_spec")) == NULL) return 0;
    if ((state->func = PyUnicode_InternFromString("func")) == NULL) return 0;
    if ((state->generators = PyUnicode_InternFromString("generators")) == NULL) return 0;
    if ((state->guard = PyUnicode_InternFromString("guard")) == NULL) return 0;
    if ((state->handlers = PyUnicode_InternFromString("handlers")) == NULL) return 0;
    if ((state->id = PyUnicode_InternFromString("id")) == NULL) return 0;
    if ((state->ifs = PyUnicode_InternFromString("ifs")) == NULL) return 0;
    if ((state->is_async = PyUnicode_InternFromString("is_async")) == NULL) return 0;
    if ((state->items = PyUnicode_InternFromString("items")) == NULL) return 0;
    if ((state->iter = PyUnicode_InternFromString("iter")) == NULL) return 0;
    if ((state->key = PyUnicode_InternFromString("key")) == NULL) return 0;
    if ((state->keys = PyUnicode_InternFromString("keys")) == NULL) return 0;
    if ((state->keywords = PyUnicode_InternFromString("keywords")) == NULL) return 0;
    if ((state->kind = PyUnicode_InternFromString("kind")) == NULL) return 0;
    if ((state->kw_defaults = PyUnicode_InternFromString("kw_defaults")) == NULL) return 0;
    if ((state->kwarg = PyUnicode_InternFromString("kwarg")) == NULL) return 0;
    if ((state->kwd_attrs = PyUnicode_InternFromString("kwd_attrs")) == NULL) return 0;
    if ((state->kwd_patterns = PyUnicode_InternFromString("kwd_patterns")) == NULL) return 0;
    if ((state->kwonlyargs = PyUnicode_InternFromString("kwonlyargs")) == NULL) return 0;
    if ((state->left = PyUnicode_InternFromString("left")) == NULL) return 0;
    if ((state->level = PyUnicode_InternFromString("level")) == NULL) return 0;
    if ((state->lineno = PyUnicode_InternFromString("lineno")) == NULL) return 0;
    if ((state->lower = PyUnicode_InternFromString("lower")) == NULL) return 0;
    if ((state->module = PyUnicode_InternFromString("module")) == NULL) return 0;
    if ((state->msg = PyUnicode_InternFromString("msg")) == NULL) return 0;
    if ((state->name = PyUnicode_InternFromString("name")) == NULL) return 0;
    if ((state->names = PyUnicode_InternFromString("names")) == NULL) return 0;
    if ((state->op = PyUnicode_InternFromString("op")) == NULL) return 0;
    if ((state->operand = PyUnicode_InternFromString("operand")) == NULL) return 0;
    if ((state->ops = PyUnicode_InternFromString("ops")) == NULL) return 0;
    if ((state->optional_vars = PyUnicode_InternFromString("optional_vars")) == NULL) return 0;
    if ((state->orelse = PyUnicode_InternFromString("orelse")) == NULL) return 0;
    if ((state->pattern = PyUnicode_InternFromString("pattern")) == NULL) return 0;
    if ((state->patterns = PyUnicode_InternFromString("patterns")) == NULL) return 0;
    if ((state->posonlyargs = PyUnicode_InternFromString("posonlyargs")) == NULL) return 0;
    if ((state->rest = PyUnicode_InternFromString("rest")) == NULL) return 0;
    if ((state->returns = PyUnicode_InternFromString("returns")) == NULL) return 0;
    if ((state->right = PyUnicode_InternFromString("right")) == NULL) return 0;
    if ((state->simple = PyUnicode_InternFromString("simple")) == NULL) return 0;
    if ((state->slice = PyUnicode_InternFromString("slice")) == NULL) return 0;
    if ((state->step = PyUnicode_InternFromString("step")) == NULL) return 0;
    if ((state->subject = PyUnicode_InternFromString("subject")) == NULL) return 0;
    if ((state->tag = PyUnicode_InternFromString("tag")) == NULL) return 0;
    if ((state->target = PyUnicode_InternFromString("target")) == NULL) return 0;
    if ((state->targets = PyUnicode_InternFromString("targets")) == NULL) return 0;
    if ((state->test = PyUnicode_InternFromString("test")) == NULL) return 0;
    if ((state->type = PyUnicode_InternFromString("type")) == NULL) return 0;
    if ((state->type_comment = PyUnicode_InternFromString("type_comment")) == NULL) return 0;
    if ((state->type_ignores = PyUnicode_InternFromString("type_ignores")) == NULL) return 0;
    if ((state->type_params = PyUnicode_InternFromString("type_params")) == NULL) return 0;
    if ((state->upper = PyUnicode_InternFromString("upper")) == NULL) return 0;
    if ((state->value = PyUnicode_InternFromString("value")) == NULL) return 0;
    if ((state->values = PyUnicode_InternFromString("values")) == NULL) return 0;
    if ((state->vararg = PyUnicode_InternFromString("vararg")) == NULL) return 0;
    return 1;
};

GENERATE_ASDL_SEQ_CONSTRUCTOR(mod, mod_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(stmt, stmt_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(expr, expr_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(comprehension, comprehension_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(excepthandler, excepthandler_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(arguments, arguments_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(arg, arg_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(keyword, keyword_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(alias, alias_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(withitem, withitem_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(match_case, match_case_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(pattern, pattern_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(type_ignore, type_ignore_ty)
GENERATE_ASDL_SEQ_CONSTRUCTOR(type_param, type_param_ty)

static PyObject* ast2obj_mod(struct ast_state *state, struct validator *vstate,
                             void*);
static const char * const Module_fields[]={
    "body",
    "type_ignores",
};
static const char * const Interactive_fields[]={
    "body",
};
static const char * const Expression_fields[]={
    "body",
};
static const char * const FunctionType_fields[]={
    "argtypes",
    "returns",
};
static const char * const stmt_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_stmt(struct ast_state *state, struct validator
                              *vstate, void*);
static const char * const FunctionDef_fields[]={
    "name",
    "args",
    "body",
    "decorator_list",
    "returns",
    "type_comment",
    "type_params",
};
static const char * const AsyncFunctionDef_fields[]={
    "name",
    "args",
    "body",
    "decorator_list",
    "returns",
    "type_comment",
    "type_params",
};
static const char * const ClassDef_fields[]={
    "name",
    "bases",
    "keywords",
    "body",
    "decorator_list",
    "type_params",
};
static const char * const Return_fields[]={
    "value",
};
static const char * const Delete_fields[]={
    "targets",
};
static const char * const Assign_fields[]={
    "targets",
    "value",
    "type_comment",
};
static const char * const TypeAlias_fields[]={
    "name",
    "type_params",
    "value",
};
static const char * const AugAssign_fields[]={
    "target",
    "op",
    "value",
};
static const char * const AnnAssign_fields[]={
    "target",
    "annotation",
    "value",
    "simple",
};
static const char * const For_fields[]={
    "target",
    "iter",
    "body",
    "orelse",
    "type_comment",
};
static const char * const AsyncFor_fields[]={
    "target",
    "iter",
    "body",
    "orelse",
    "type_comment",
};
static const char * const While_fields[]={
    "test",
    "body",
    "orelse",
};
static const char * const If_fields[]={
    "test",
    "body",
    "orelse",
};
static const char * const With_fields[]={
    "items",
    "body",
    "type_comment",
};
static const char * const AsyncWith_fields[]={
    "items",
    "body",
    "type_comment",
};
static const char * const Match_fields[]={
    "subject",
    "cases",
};
static const char * const Raise_fields[]={
    "exc",
    "cause",
};
static const char * const Try_fields[]={
    "body",
    "handlers",
    "orelse",
    "finalbody",
};
static const char * const TryStar_fields[]={
    "body",
    "handlers",
    "orelse",
    "finalbody",
};
static const char * const Assert_fields[]={
    "test",
    "msg",
};
static const char * const Import_fields[]={
    "names",
};
static const char * const ImportFrom_fields[]={
    "module",
    "names",
    "level",
};
static const char * const Global_fields[]={
    "names",
};
static const char * const Nonlocal_fields[]={
    "names",
};
static const char * const Expr_fields[]={
    "value",
};
static const char * const expr_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_expr(struct ast_state *state, struct validator
                              *vstate, void*);
static const char * const BoolOp_fields[]={
    "op",
    "values",
};
static const char * const NamedExpr_fields[]={
    "target",
    "value",
};
static const char * const BinOp_fields[]={
    "left",
    "op",
    "right",
};
static const char * const UnaryOp_fields[]={
    "op",
    "operand",
};
static const char * const Lambda_fields[]={
    "args",
    "body",
};
static const char * const IfExp_fields[]={
    "test",
    "body",
    "orelse",
};
static const char * const Dict_fields[]={
    "keys",
    "values",
};
static const char * const Set_fields[]={
    "elts",
};
static const char * const ListComp_fields[]={
    "elt",
    "generators",
};
static const char * const SetComp_fields[]={
    "elt",
    "generators",
};
static const char * const DictComp_fields[]={
    "key",
    "value",
    "generators",
};
static const char * const GeneratorExp_fields[]={
    "elt",
    "generators",
};
static const char * const Await_fields[]={
    "value",
};
static const char * const Yield_fields[]={
    "value",
};
static const char * const YieldFrom_fields[]={
    "value",
};
static const char * const Compare_fields[]={
    "left",
    "ops",
    "comparators",
};
static const char * const Call_fields[]={
    "func",
    "args",
    "keywords",
};
static const char * const FormattedValue_fields[]={
    "value",
    "conversion",
    "format_spec",
};
static const char * const JoinedStr_fields[]={
    "values",
};
static const char * const Constant_fields[]={
    "value",
    "kind",
};
static const char * const Attribute_fields[]={
    "value",
    "attr",
    "ctx",
};
static const char * const Subscript_fields[]={
    "value",
    "slice",
    "ctx",
};
static const char * const Starred_fields[]={
    "value",
    "ctx",
};
static const char * const Name_fields[]={
    "id",
    "ctx",
};
static const char * const List_fields[]={
    "elts",
    "ctx",
};
static const char * const Tuple_fields[]={
    "elts",
    "ctx",
};
static const char * const Slice_fields[]={
    "lower",
    "upper",
    "step",
};
static PyObject* ast2obj_expr_context(struct ast_state *state, struct validator
                                      *vstate, expr_context_ty);
static PyObject* ast2obj_boolop(struct ast_state *state, struct validator
                                *vstate, boolop_ty);
static PyObject* ast2obj_operator(struct ast_state *state, struct validator
                                  *vstate, operator_ty);
static PyObject* ast2obj_unaryop(struct ast_state *state, struct validator
                                 *vstate, unaryop_ty);
static PyObject* ast2obj_cmpop(struct ast_state *state, struct validator
                               *vstate, cmpop_ty);
static PyObject* ast2obj_comprehension(struct ast_state *state, struct
                                       validator *vstate, void*);
static const char * const comprehension_fields[]={
    "target",
    "iter",
    "ifs",
    "is_async",
};
static const char * const excepthandler_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_excepthandler(struct ast_state *state, struct
                                       validator *vstate, void*);
static const char * const ExceptHandler_fields[]={
    "type",
    "name",
    "body",
};
static PyObject* ast2obj_arguments(struct ast_state *state, struct validator
                                   *vstate, void*);
static const char * const arguments_fields[]={
    "posonlyargs",
    "args",
    "vararg",
    "kwonlyargs",
    "kw_defaults",
    "kwarg",
    "defaults",
};
static PyObject* ast2obj_arg(struct ast_state *state, struct validator *vstate,
                             void*);
static const char * const arg_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static const char * const arg_fields[]={
    "arg",
    "annotation",
    "type_comment",
};
static PyObject* ast2obj_keyword(struct ast_state *state, struct validator
                                 *vstate, void*);
static const char * const keyword_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static const char * const keyword_fields[]={
    "arg",
    "value",
};
static PyObject* ast2obj_alias(struct ast_state *state, struct validator
                               *vstate, void*);
static const char * const alias_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static const char * const alias_fields[]={
    "name",
    "asname",
};
static PyObject* ast2obj_withitem(struct ast_state *state, struct validator
                                  *vstate, void*);
static const char * const withitem_fields[]={
    "context_expr",
    "optional_vars",
};
static PyObject* ast2obj_match_case(struct ast_state *state, struct validator
                                    *vstate, void*);
static const char * const match_case_fields[]={
    "pattern",
    "guard",
    "body",
};
static const char * const pattern_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_pattern(struct ast_state *state, struct validator
                                 *vstate, void*);
static const char * const MatchValue_fields[]={
    "value",
};
static const char * const MatchSingleton_fields[]={
    "value",
};
static const char * const MatchSequence_fields[]={
    "patterns",
};
static const char * const MatchMapping_fields[]={
    "keys",
    "patterns",
    "rest",
};
static const char * const MatchClass_fields[]={
    "cls",
    "patterns",
    "kwd_attrs",
    "kwd_patterns",
};
static const char * const MatchStar_fields[]={
    "name",
};
static const char * const MatchAs_fields[]={
    "pattern",
    "name",
};
static const char * const MatchOr_fields[]={
    "patterns",
};
static PyObject* ast2obj_type_ignore(struct ast_state *state, struct validator
                                     *vstate, void*);
static const char * const TypeIgnore_fields[]={
    "lineno",
    "tag",
};
static const char * const type_param_attributes[] = {
    "lineno",
    "col_offset",
    "end_lineno",
    "end_col_offset",
};
static PyObject* ast2obj_type_param(struct ast_state *state, struct validator
                                    *vstate, void*);
static const char * const TypeVar_fields[]={
    "name",
    "bound",
};
static const char * const ParamSpec_fields[]={
    "name",
};
static const char * const TypeVarTuple_fields[]={
    "name",
};



typedef struct {
    PyObject_HEAD
    PyObject *dict;
} AST_object;

static void
ast_dealloc(AST_object *self)
{
    /* bpo-31095: UnTrack is needed before calling any callbacks */
    PyTypeObject *tp = Py_TYPE(self);
    PyObject_GC_UnTrack(self);
    Py_CLEAR(self->dict);
    freefunc free_func = PyType_GetSlot(tp, Py_tp_free);
    assert(free_func != NULL);
    free_func(self);
    Py_DECREF(tp);
}

static int
ast_traverse(AST_object *self, visitproc visit, void *arg)
{
    Py_VISIT(Py_TYPE(self));
    Py_VISIT(self->dict);
    return 0;
}

static int
ast_clear(AST_object *self)
{
    Py_CLEAR(self->dict);
    return 0;
}

static int
ast_type_init(PyObject *self, PyObject *args, PyObject *kw)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return -1;
    }

    Py_ssize_t i, numfields = 0;
    int res = -1;
    PyObject *key, *value, *fields;
    if (_PyObject_LookupAttr((PyObject*)Py_TYPE(self), state->_fields, &fields) < 0) {
        goto cleanup;
    }
    if (fields) {
        numfields = PySequence_Size(fields);
        if (numfields == -1) {
            goto cleanup;
        }
    }

    res = 0; /* if no error occurs, this stays 0 to the end */
    if (numfields < PyTuple_GET_SIZE(args)) {
        PyErr_Format(PyExc_TypeError, "%.400s constructor takes at most "
                     "%zd positional argument%s",
                     _PyType_Name(Py_TYPE(self)),
                     numfields, numfields == 1 ? "" : "s");
        res = -1;
        goto cleanup;
    }
    for (i = 0; i < PyTuple_GET_SIZE(args); i++) {
        /* cannot be reached when fields is NULL */
        PyObject *name = PySequence_GetItem(fields, i);
        if (!name) {
            res = -1;
            goto cleanup;
        }
        res = PyObject_SetAttr(self, name, PyTuple_GET_ITEM(args, i));
        Py_DECREF(name);
        if (res < 0) {
            goto cleanup;
        }
    }
    if (kw) {
        i = 0;  /* needed by PyDict_Next */
        while (PyDict_Next(kw, &i, &key, &value)) {
            int contains = PySequence_Contains(fields, key);
            if (contains == -1) {
                res = -1;
                goto cleanup;
            } else if (contains == 1) {
                Py_ssize_t p = PySequence_Index(fields, key);
                if (p == -1) {
                    res = -1;
                    goto cleanup;
                }
                if (p < PyTuple_GET_SIZE(args)) {
                    PyErr_Format(PyExc_TypeError,
                        "%.400s got multiple values for argument '%U'",
                        Py_TYPE(self)->tp_name, key);
                    res = -1;
                    goto cleanup;
                }
            }
            res = PyObject_SetAttr(self, key, value);
            if (res < 0) {
                goto cleanup;
            }
        }
    }
  cleanup:
    Py_XDECREF(fields);
    return res;
}

/* Pickling support */
static PyObject *
ast_type_reduce(PyObject *self, PyObject *unused)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    PyObject *dict;
    if (_PyObject_LookupAttr(self, state->__dict__, &dict) < 0) {
        return NULL;
    }
    if (dict) {
        return Py_BuildValue("O()N", Py_TYPE(self), dict);
    }
    return Py_BuildValue("O()", Py_TYPE(self));
}

static PyMemberDef ast_type_members[] = {
    {"__dictoffset__", T_PYSSIZET, offsetof(AST_object, dict), READONLY},
    {NULL}  /* Sentinel */
};

static PyMethodDef ast_type_methods[] = {
    {"__reduce__", ast_type_reduce, METH_NOARGS, NULL},
    {NULL}
};

static PyGetSetDef ast_type_getsets[] = {
    {"__dict__", PyObject_GenericGetDict, PyObject_GenericSetDict},
    {NULL}
};

static PyType_Slot AST_type_slots[] = {
    {Py_tp_dealloc, ast_dealloc},
    {Py_tp_getattro, PyObject_GenericGetAttr},
    {Py_tp_setattro, PyObject_GenericSetAttr},
    {Py_tp_traverse, ast_traverse},
    {Py_tp_clear, ast_clear},
    {Py_tp_members, ast_type_members},
    {Py_tp_methods, ast_type_methods},
    {Py_tp_getset, ast_type_getsets},
    {Py_tp_init, ast_type_init},
    {Py_tp_alloc, PyType_GenericAlloc},
    {Py_tp_new, PyType_GenericNew},
    {Py_tp_free, PyObject_GC_Del},
    {0, 0},
};

static PyType_Spec AST_type_spec = {
    "ast.AST",
    sizeof(AST_object),
    0,
    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
    AST_type_slots
};

static PyObject *
make_type(struct ast_state *state, const char *type, PyObject* base,
          const char* const* fields, int num_fields, const char *doc)
{
    PyObject *fnames, *result;
    int i;
    fnames = PyTuple_New(num_fields);
    if (!fnames) return NULL;
    for (i = 0; i < num_fields; i++) {
        PyObject *field = PyUnicode_InternFromString(fields[i]);
        if (!field) {
            Py_DECREF(fnames);
            return NULL;
        }
        PyTuple_SET_ITEM(fnames, i, field);
    }
    result = PyObject_CallFunction((PyObject*)&PyType_Type, "s(O){OOOOOOOs}",
                    type, base,
                    state->_fields, fnames,
                    state->__match_args__, fnames,
                    state->__module__,
                    state->ast,
                    state->__doc__, doc);
    Py_DECREF(fnames);
    return result;
}

static int
add_attributes(struct ast_state *state, PyObject *type, const char * const *attrs, int num_fields)
{
    int i, result;
    PyObject *s, *l = PyTuple_New(num_fields);
    if (!l)
        return 0;
    for (i = 0; i < num_fields; i++) {
        s = PyUnicode_InternFromString(attrs[i]);
        if (!s) {
            Py_DECREF(l);
            return 0;
        }
        PyTuple_SET_ITEM(l, i, s);
    }
    result = PyObject_SetAttr(type, state->_attributes, l) >= 0;
    Py_DECREF(l);
    return result;
}

/* Conversion AST -> Python */

static PyObject* ast2obj_list(struct ast_state *state, struct validator *vstate, asdl_seq *seq,
                              PyObject* (*func)(struct ast_state *state, struct validator *vstate, void*))
{
    Py_ssize_t i, n = asdl_seq_LEN(seq);
    PyObject *result = PyList_New(n);
    PyObject *value;
    if (!result)
        return NULL;
    for (i = 0; i < n; i++) {
        value = func(state, vstate, asdl_seq_GET_UNTYPED(seq, i));
        if (!value) {
            Py_DECREF(result);
            return NULL;
        }
        PyList_SET_ITEM(result, i, value);
    }
    return result;
}

static PyObject* ast2obj_object(struct ast_state *Py_UNUSED(state), struct validator *Py_UNUSED(vstate), void *o)
{
    PyObject *op = (PyObject*)o;
    if (!op) {
        op = Py_None;
    }
    return Py_NewRef(op);
}
#define ast2obj_constant ast2obj_object
#define ast2obj_identifier ast2obj_object
#define ast2obj_string ast2obj_object

static PyObject* ast2obj_int(struct ast_state *Py_UNUSED(state), struct validator *Py_UNUSED(vstate), long b)
{
    return PyLong_FromLong(b);
}

/* Conversion Python -> AST */

static int obj2ast_object(struct ast_state *Py_UNUSED(state), PyObject* obj, PyObject** out, PyArena* arena)
{
    if (obj == Py_None)
        obj = NULL;
    if (obj) {
        if (_PyArena_AddPyObject(arena, obj) < 0) {
            *out = NULL;
            return -1;
        }
        *out = Py_NewRef(obj);
    }
    else {
        *out = NULL;
    }
    return 0;
}

static int obj2ast_constant(struct ast_state *Py_UNUSED(state), PyObject* obj, PyObject** out, PyArena* arena)
{
    if (_PyArena_AddPyObject(arena, obj) < 0) {
        *out = NULL;
        return -1;
    }
    *out = Py_NewRef(obj);
    return 0;
}

static int obj2ast_identifier(struct ast_state *state, PyObject* obj, PyObject** out, PyArena* arena)
{
    if (!PyUnicode_CheckExact(obj) && obj != Py_None) {
        PyErr_SetString(PyExc_TypeError, "AST identifier must be of type str");
        return 1;
    }
    return obj2ast_object(state, obj, out, arena);
}

static int obj2ast_string(struct ast_state *state, PyObject* obj, PyObject** out, PyArena* arena)
{
    if (!PyUnicode_CheckExact(obj) && !PyBytes_CheckExact(obj)) {
        PyErr_SetString(PyExc_TypeError, "AST string must be of type str");
        return 1;
    }
    return obj2ast_object(state, obj, out, arena);
}

static int obj2ast_int(struct ast_state* Py_UNUSED(state), PyObject* obj, int* out, PyArena* arena)
{
    int i;
    if (!PyLong_Check(obj)) {
        PyErr_Format(PyExc_ValueError, "invalid integer value: %R", obj);
        return 1;
    }

    i = _PyLong_AsInt(obj);
    if (i == -1 && PyErr_Occurred())
        return 1;
    *out = i;
    return 0;
}

static int add_ast_fields(struct ast_state *state)
{
    PyObject *empty_tuple;
    empty_tuple = PyTuple_New(0);
    if (!empty_tuple ||
        PyObject_SetAttrString(state->AST_type, "_fields", empty_tuple) < 0 ||
        PyObject_SetAttrString(state->AST_type, "__match_args__", empty_tuple) < 0 ||
        PyObject_SetAttrString(state->AST_type, "_attributes", empty_tuple) < 0) {
        Py_XDECREF(empty_tuple);
        return -1;
    }
    Py_DECREF(empty_tuple);
    return 0;
}



static int
init_types(struct ast_state *state)
{
    // init_types() must not be called after _PyAST_Fini()
    // has been called
    assert(state->initialized >= 0);

    if (state->initialized) {
        return 1;
    }
    if (init_identifiers(state) < 0) {
        return 0;
    }
    state->AST_type = PyType_FromSpec(&AST_type_spec);
    if (!state->AST_type) {
        return 0;
    }
    if (add_ast_fields(state) < 0) {
        return 0;
    }
    state->mod_type = make_type(state, "mod", state->AST_type, NULL, 0,
        "mod = Module(stmt* body, type_ignore* type_ignores)\n"
        "    | Interactive(stmt* body)\n"
        "    | Expression(expr body)\n"
        "    | FunctionType(expr* argtypes, expr returns)");
    if (!state->mod_type) return 0;
    if (!add_attributes(state, state->mod_type, NULL, 0)) return 0;
    state->Module_type = make_type(state, "Module", state->mod_type,
                                   Module_fields, 2,
        "Module(stmt* body, type_ignore* type_ignores)");
    if (!state->Module_type) return 0;
    state->Interactive_type = make_type(state, "Interactive", state->mod_type,
                                        Interactive_fields, 1,
        "Interactive(stmt* body)");
    if (!state->Interactive_type) return 0;
    state->Expression_type = make_type(state, "Expression", state->mod_type,
                                       Expression_fields, 1,
        "Expression(expr body)");
    if (!state->Expression_type) return 0;
    state->FunctionType_type = make_type(state, "FunctionType",
                                         state->mod_type, FunctionType_fields,
                                         2,
        "FunctionType(expr* argtypes, expr returns)");
    if (!state->FunctionType_type) return 0;
    state->stmt_type = make_type(state, "stmt", state->AST_type, NULL, 0,
        "stmt = FunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)\n"
        "     | AsyncFunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)\n"
        "     | ClassDef(identifier name, expr* bases, keyword* keywords, stmt* body, expr* decorator_list, type_param* type_params)\n"
        "     | Return(expr? value)\n"
        "     | Delete(expr* targets)\n"
        "     | Assign(expr* targets, expr value, string? type_comment)\n"
        "     | TypeAlias(expr name, type_param* type_params, expr value)\n"
        "     | AugAssign(expr target, operator op, expr value)\n"
        "     | AnnAssign(expr target, expr annotation, expr? value, int simple)\n"
        "     | For(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)\n"
        "     | AsyncFor(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)\n"
        "     | While(expr test, stmt* body, stmt* orelse)\n"
        "     | If(expr test, stmt* body, stmt* orelse)\n"
        "     | With(withitem* items, stmt* body, string? type_comment)\n"
        "     | AsyncWith(withitem* items, stmt* body, string? type_comment)\n"
        "     | Match(expr subject, match_case* cases)\n"
        "     | Raise(expr? exc, expr? cause)\n"
        "     | Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)\n"
        "     | TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)\n"
        "     | Assert(expr test, expr? msg)\n"
        "     | Import(alias* names)\n"
        "     | ImportFrom(identifier? module, alias* names, int? level)\n"
        "     | Global(identifier* names)\n"
        "     | Nonlocal(identifier* names)\n"
        "     | Expr(expr value)\n"
        "     | Pass\n"
        "     | Break\n"
        "     | Continue");
    if (!state->stmt_type) return 0;
    if (!add_attributes(state, state->stmt_type, stmt_attributes, 4)) return 0;
    if (PyObject_SetAttr(state->stmt_type, state->end_lineno, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->stmt_type, state->end_col_offset, Py_None) ==
        -1)
        return 0;
    state->FunctionDef_type = make_type(state, "FunctionDef", state->stmt_type,
                                        FunctionDef_fields, 7,
        "FunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)");
    if (!state->FunctionDef_type) return 0;
    if (PyObject_SetAttr(state->FunctionDef_type, state->returns, Py_None) ==
        -1)
        return 0;
    if (PyObject_SetAttr(state->FunctionDef_type, state->type_comment, Py_None)
        == -1)
        return 0;
    state->AsyncFunctionDef_type = make_type(state, "AsyncFunctionDef",
                                             state->stmt_type,
                                             AsyncFunctionDef_fields, 7,
        "AsyncFunctionDef(identifier name, arguments args, stmt* body, expr* decorator_list, expr? returns, string? type_comment, type_param* type_params)");
    if (!state->AsyncFunctionDef_type) return 0;
    if (PyObject_SetAttr(state->AsyncFunctionDef_type, state->returns, Py_None)
        == -1)
        return 0;
    if (PyObject_SetAttr(state->AsyncFunctionDef_type, state->type_comment,
        Py_None) == -1)
        return 0;
    state->ClassDef_type = make_type(state, "ClassDef", state->stmt_type,
                                     ClassDef_fields, 6,
        "ClassDef(identifier name, expr* bases, keyword* keywords, stmt* body, expr* decorator_list, type_param* type_params)");
    if (!state->ClassDef_type) return 0;
    state->Return_type = make_type(state, "Return", state->stmt_type,
                                   Return_fields, 1,
        "Return(expr? value)");
    if (!state->Return_type) return 0;
    if (PyObject_SetAttr(state->Return_type, state->value, Py_None) == -1)
        return 0;
    state->Delete_type = make_type(state, "Delete", state->stmt_type,
                                   Delete_fields, 1,
        "Delete(expr* targets)");
    if (!state->Delete_type) return 0;
    state->Assign_type = make_type(state, "Assign", state->stmt_type,
                                   Assign_fields, 3,
        "Assign(expr* targets, expr value, string? type_comment)");
    if (!state->Assign_type) return 0;
    if (PyObject_SetAttr(state->Assign_type, state->type_comment, Py_None) ==
        -1)
        return 0;
    state->TypeAlias_type = make_type(state, "TypeAlias", state->stmt_type,
                                      TypeAlias_fields, 3,
        "TypeAlias(expr name, type_param* type_params, expr value)");
    if (!state->TypeAlias_type) return 0;
    state->AugAssign_type = make_type(state, "AugAssign", state->stmt_type,
                                      AugAssign_fields, 3,
        "AugAssign(expr target, operator op, expr value)");
    if (!state->AugAssign_type) return 0;
    state->AnnAssign_type = make_type(state, "AnnAssign", state->stmt_type,
                                      AnnAssign_fields, 4,
        "AnnAssign(expr target, expr annotation, expr? value, int simple)");
    if (!state->AnnAssign_type) return 0;
    if (PyObject_SetAttr(state->AnnAssign_type, state->value, Py_None) == -1)
        return 0;
    state->For_type = make_type(state, "For", state->stmt_type, For_fields, 5,
        "For(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)");
    if (!state->For_type) return 0;
    if (PyObject_SetAttr(state->For_type, state->type_comment, Py_None) == -1)
        return 0;
    state->AsyncFor_type = make_type(state, "AsyncFor", state->stmt_type,
                                     AsyncFor_fields, 5,
        "AsyncFor(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)");
    if (!state->AsyncFor_type) return 0;
    if (PyObject_SetAttr(state->AsyncFor_type, state->type_comment, Py_None) ==
        -1)
        return 0;
    state->While_type = make_type(state, "While", state->stmt_type,
                                  While_fields, 3,
        "While(expr test, stmt* body, stmt* orelse)");
    if (!state->While_type) return 0;
    state->If_type = make_type(state, "If", state->stmt_type, If_fields, 3,
        "If(expr test, stmt* body, stmt* orelse)");
    if (!state->If_type) return 0;
    state->With_type = make_type(state, "With", state->stmt_type, With_fields,
                                 3,
        "With(withitem* items, stmt* body, string? type_comment)");
    if (!state->With_type) return 0;
    if (PyObject_SetAttr(state->With_type, state->type_comment, Py_None) == -1)
        return 0;
    state->AsyncWith_type = make_type(state, "AsyncWith", state->stmt_type,
                                      AsyncWith_fields, 3,
        "AsyncWith(withitem* items, stmt* body, string? type_comment)");
    if (!state->AsyncWith_type) return 0;
    if (PyObject_SetAttr(state->AsyncWith_type, state->type_comment, Py_None)
        == -1)
        return 0;
    state->Match_type = make_type(state, "Match", state->stmt_type,
                                  Match_fields, 2,
        "Match(expr subject, match_case* cases)");
    if (!state->Match_type) return 0;
    state->Raise_type = make_type(state, "Raise", state->stmt_type,
                                  Raise_fields, 2,
        "Raise(expr? exc, expr? cause)");
    if (!state->Raise_type) return 0;
    if (PyObject_SetAttr(state->Raise_type, state->exc, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->Raise_type, state->cause, Py_None) == -1)
        return 0;
    state->Try_type = make_type(state, "Try", state->stmt_type, Try_fields, 4,
        "Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)");
    if (!state->Try_type) return 0;
    state->TryStar_type = make_type(state, "TryStar", state->stmt_type,
                                    TryStar_fields, 4,
        "TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)");
    if (!state->TryStar_type) return 0;
    state->Assert_type = make_type(state, "Assert", state->stmt_type,
                                   Assert_fields, 2,
        "Assert(expr test, expr? msg)");
    if (!state->Assert_type) return 0;
    if (PyObject_SetAttr(state->Assert_type, state->msg, Py_None) == -1)
        return 0;
    state->Import_type = make_type(state, "Import", state->stmt_type,
                                   Import_fields, 1,
        "Import(alias* names)");
    if (!state->Import_type) return 0;
    state->ImportFrom_type = make_type(state, "ImportFrom", state->stmt_type,
                                       ImportFrom_fields, 3,
        "ImportFrom(identifier? module, alias* names, int? level)");
    if (!state->ImportFrom_type) return 0;
    if (PyObject_SetAttr(state->ImportFrom_type, state->module, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->ImportFrom_type, state->level, Py_None) == -1)
        return 0;
    state->Global_type = make_type(state, "Global", state->stmt_type,
                                   Global_fields, 1,
        "Global(identifier* names)");
    if (!state->Global_type) return 0;
    state->Nonlocal_type = make_type(state, "Nonlocal", state->stmt_type,
                                     Nonlocal_fields, 1,
        "Nonlocal(identifier* names)");
    if (!state->Nonlocal_type) return 0;
    state->Expr_type = make_type(state, "Expr", state->stmt_type, Expr_fields,
                                 1,
        "Expr(expr value)");
    if (!state->Expr_type) return 0;
    state->Pass_type = make_type(state, "Pass", state->stmt_type, NULL, 0,
        "Pass");
    if (!state->Pass_type) return 0;
    state->Break_type = make_type(state, "Break", state->stmt_type, NULL, 0,
        "Break");
    if (!state->Break_type) return 0;
    state->Continue_type = make_type(state, "Continue", state->stmt_type, NULL,
                                     0,
        "Continue");
    if (!state->Continue_type) return 0;
    state->expr_type = make_type(state, "expr", state->AST_type, NULL, 0,
        "expr = BoolOp(boolop op, expr* values)\n"
        "     | NamedExpr(expr target, expr value)\n"
        "     | BinOp(expr left, operator op, expr right)\n"
        "     | UnaryOp(unaryop op, expr operand)\n"
        "     | Lambda(arguments args, expr body)\n"
        "     | IfExp(expr test, expr body, expr orelse)\n"
        "     | Dict(expr* keys, expr* values)\n"
        "     | Set(expr* elts)\n"
        "     | ListComp(expr elt, comprehension* generators)\n"
        "     | SetComp(expr elt, comprehension* generators)\n"
        "     | DictComp(expr key, expr value, comprehension* generators)\n"
        "     | GeneratorExp(expr elt, comprehension* generators)\n"
        "     | Await(expr value)\n"
        "     | Yield(expr? value)\n"
        "     | YieldFrom(expr value)\n"
        "     | Compare(expr left, cmpop* ops, expr* comparators)\n"
        "     | Call(expr func, expr* args, keyword* keywords)\n"
        "     | FormattedValue(expr value, int conversion, expr? format_spec)\n"
        "     | JoinedStr(expr* values)\n"
        "     | Constant(constant value, string? kind)\n"
        "     | Attribute(expr value, identifier attr, expr_context ctx)\n"
        "     | Subscript(expr value, expr slice, expr_context ctx)\n"
        "     | Starred(expr value, expr_context ctx)\n"
        "     | Name(identifier id, expr_context ctx)\n"
        "     | List(expr* elts, expr_context ctx)\n"
        "     | Tuple(expr* elts, expr_context ctx)\n"
        "     | Slice(expr? lower, expr? upper, expr? step)");
    if (!state->expr_type) return 0;
    if (!add_attributes(state, state->expr_type, expr_attributes, 4)) return 0;
    if (PyObject_SetAttr(state->expr_type, state->end_lineno, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->expr_type, state->end_col_offset, Py_None) ==
        -1)
        return 0;
    state->BoolOp_type = make_type(state, "BoolOp", state->expr_type,
                                   BoolOp_fields, 2,
        "BoolOp(boolop op, expr* values)");
    if (!state->BoolOp_type) return 0;
    state->NamedExpr_type = make_type(state, "NamedExpr", state->expr_type,
                                      NamedExpr_fields, 2,
        "NamedExpr(expr target, expr value)");
    if (!state->NamedExpr_type) return 0;
    state->BinOp_type = make_type(state, "BinOp", state->expr_type,
                                  BinOp_fields, 3,
        "BinOp(expr left, operator op, expr right)");
    if (!state->BinOp_type) return 0;
    state->UnaryOp_type = make_type(state, "UnaryOp", state->expr_type,
                                    UnaryOp_fields, 2,
        "UnaryOp(unaryop op, expr operand)");
    if (!state->UnaryOp_type) return 0;
    state->Lambda_type = make_type(state, "Lambda", state->expr_type,
                                   Lambda_fields, 2,
        "Lambda(arguments args, expr body)");
    if (!state->Lambda_type) return 0;
    state->IfExp_type = make_type(state, "IfExp", state->expr_type,
                                  IfExp_fields, 3,
        "IfExp(expr test, expr body, expr orelse)");
    if (!state->IfExp_type) return 0;
    state->Dict_type = make_type(state, "Dict", state->expr_type, Dict_fields,
                                 2,
        "Dict(expr* keys, expr* values)");
    if (!state->Dict_type) return 0;
    state->Set_type = make_type(state, "Set", state->expr_type, Set_fields, 1,
        "Set(expr* elts)");
    if (!state->Set_type) return 0;
    state->ListComp_type = make_type(state, "ListComp", state->expr_type,
                                     ListComp_fields, 2,
        "ListComp(expr elt, comprehension* generators)");
    if (!state->ListComp_type) return 0;
    state->SetComp_type = make_type(state, "SetComp", state->expr_type,
                                    SetComp_fields, 2,
        "SetComp(expr elt, comprehension* generators)");
    if (!state->SetComp_type) return 0;
    state->DictComp_type = make_type(state, "DictComp", state->expr_type,
                                     DictComp_fields, 3,
        "DictComp(expr key, expr value, comprehension* generators)");
    if (!state->DictComp_type) return 0;
    state->GeneratorExp_type = make_type(state, "GeneratorExp",
                                         state->expr_type, GeneratorExp_fields,
                                         2,
        "GeneratorExp(expr elt, comprehension* generators)");
    if (!state->GeneratorExp_type) return 0;
    state->Await_type = make_type(state, "Await", state->expr_type,
                                  Await_fields, 1,
        "Await(expr value)");
    if (!state->Await_type) return 0;
    state->Yield_type = make_type(state, "Yield", state->expr_type,
                                  Yield_fields, 1,
        "Yield(expr? value)");
    if (!state->Yield_type) return 0;
    if (PyObject_SetAttr(state->Yield_type, state->value, Py_None) == -1)
        return 0;
    state->YieldFrom_type = make_type(state, "YieldFrom", state->expr_type,
                                      YieldFrom_fields, 1,
        "YieldFrom(expr value)");
    if (!state->YieldFrom_type) return 0;
    state->Compare_type = make_type(state, "Compare", state->expr_type,
                                    Compare_fields, 3,
        "Compare(expr left, cmpop* ops, expr* comparators)");
    if (!state->Compare_type) return 0;
    state->Call_type = make_type(state, "Call", state->expr_type, Call_fields,
                                 3,
        "Call(expr func, expr* args, keyword* keywords)");
    if (!state->Call_type) return 0;
    state->FormattedValue_type = make_type(state, "FormattedValue",
                                           state->expr_type,
                                           FormattedValue_fields, 3,
        "FormattedValue(expr value, int conversion, expr? format_spec)");
    if (!state->FormattedValue_type) return 0;
    if (PyObject_SetAttr(state->FormattedValue_type, state->format_spec,
        Py_None) == -1)
        return 0;
    state->JoinedStr_type = make_type(state, "JoinedStr", state->expr_type,
                                      JoinedStr_fields, 1,
        "JoinedStr(expr* values)");
    if (!state->JoinedStr_type) return 0;
    state->Constant_type = make_type(state, "Constant", state->expr_type,
                                     Constant_fields, 2,
        "Constant(constant value, string? kind)");
    if (!state->Constant_type) return 0;
    if (PyObject_SetAttr(state->Constant_type, state->kind, Py_None) == -1)
        return 0;
    state->Attribute_type = make_type(state, "Attribute", state->expr_type,
                                      Attribute_fields, 3,
        "Attribute(expr value, identifier attr, expr_context ctx)");
    if (!state->Attribute_type) return 0;
    state->Subscript_type = make_type(state, "Subscript", state->expr_type,
                                      Subscript_fields, 3,
        "Subscript(expr value, expr slice, expr_context ctx)");
    if (!state->Subscript_type) return 0;
    state->Starred_type = make_type(state, "Starred", state->expr_type,
                                    Starred_fields, 2,
        "Starred(expr value, expr_context ctx)");
    if (!state->Starred_type) return 0;
    state->Name_type = make_type(state, "Name", state->expr_type, Name_fields,
                                 2,
        "Name(identifier id, expr_context ctx)");
    if (!state->Name_type) return 0;
    state->List_type = make_type(state, "List", state->expr_type, List_fields,
                                 2,
        "List(expr* elts, expr_context ctx)");
    if (!state->List_type) return 0;
    state->Tuple_type = make_type(state, "Tuple", state->expr_type,
                                  Tuple_fields, 2,
        "Tuple(expr* elts, expr_context ctx)");
    if (!state->Tuple_type) return 0;
    state->Slice_type = make_type(state, "Slice", state->expr_type,
                                  Slice_fields, 3,
        "Slice(expr? lower, expr? upper, expr? step)");
    if (!state->Slice_type) return 0;
    if (PyObject_SetAttr(state->Slice_type, state->lower, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->Slice_type, state->upper, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->Slice_type, state->step, Py_None) == -1)
        return 0;
    state->expr_context_type = make_type(state, "expr_context",
                                         state->AST_type, NULL, 0,
        "expr_context = Load | Store | Del");
    if (!state->expr_context_type) return 0;
    if (!add_attributes(state, state->expr_context_type, NULL, 0)) return 0;
    state->Load_type = make_type(state, "Load", state->expr_context_type, NULL,
                                 0,
        "Load");
    if (!state->Load_type) return 0;
    state->Load_singleton = PyType_GenericNew((PyTypeObject *)state->Load_type,
                                              NULL, NULL);
    if (!state->Load_singleton) return 0;
    state->Store_type = make_type(state, "Store", state->expr_context_type,
                                  NULL, 0,
        "Store");
    if (!state->Store_type) return 0;
    state->Store_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->Store_type, NULL, NULL);
    if (!state->Store_singleton) return 0;
    state->Del_type = make_type(state, "Del", state->expr_context_type, NULL, 0,
        "Del");
    if (!state->Del_type) return 0;
    state->Del_singleton = PyType_GenericNew((PyTypeObject *)state->Del_type,
                                             NULL, NULL);
    if (!state->Del_singleton) return 0;
    state->boolop_type = make_type(state, "boolop", state->AST_type, NULL, 0,
        "boolop = And | Or");
    if (!state->boolop_type) return 0;
    if (!add_attributes(state, state->boolop_type, NULL, 0)) return 0;
    state->And_type = make_type(state, "And", state->boolop_type, NULL, 0,
        "And");
    if (!state->And_type) return 0;
    state->And_singleton = PyType_GenericNew((PyTypeObject *)state->And_type,
                                             NULL, NULL);
    if (!state->And_singleton) return 0;
    state->Or_type = make_type(state, "Or", state->boolop_type, NULL, 0,
        "Or");
    if (!state->Or_type) return 0;
    state->Or_singleton = PyType_GenericNew((PyTypeObject *)state->Or_type,
                                            NULL, NULL);
    if (!state->Or_singleton) return 0;
    state->operator_type = make_type(state, "operator", state->AST_type, NULL,
                                     0,
        "operator = Add | Sub | Mult | MatMult | Div | Mod | Pow | LShift | RShift | BitOr | BitXor | BitAnd | FloorDiv");
    if (!state->operator_type) return 0;
    if (!add_attributes(state, state->operator_type, NULL, 0)) return 0;
    state->Add_type = make_type(state, "Add", state->operator_type, NULL, 0,
        "Add");
    if (!state->Add_type) return 0;
    state->Add_singleton = PyType_GenericNew((PyTypeObject *)state->Add_type,
                                             NULL, NULL);
    if (!state->Add_singleton) return 0;
    state->Sub_type = make_type(state, "Sub", state->operator_type, NULL, 0,
        "Sub");
    if (!state->Sub_type) return 0;
    state->Sub_singleton = PyType_GenericNew((PyTypeObject *)state->Sub_type,
                                             NULL, NULL);
    if (!state->Sub_singleton) return 0;
    state->Mult_type = make_type(state, "Mult", state->operator_type, NULL, 0,
        "Mult");
    if (!state->Mult_type) return 0;
    state->Mult_singleton = PyType_GenericNew((PyTypeObject *)state->Mult_type,
                                              NULL, NULL);
    if (!state->Mult_singleton) return 0;
    state->MatMult_type = make_type(state, "MatMult", state->operator_type,
                                    NULL, 0,
        "MatMult");
    if (!state->MatMult_type) return 0;
    state->MatMult_singleton = PyType_GenericNew((PyTypeObject
                                                 *)state->MatMult_type, NULL,
                                                 NULL);
    if (!state->MatMult_singleton) return 0;
    state->Div_type = make_type(state, "Div", state->operator_type, NULL, 0,
        "Div");
    if (!state->Div_type) return 0;
    state->Div_singleton = PyType_GenericNew((PyTypeObject *)state->Div_type,
                                             NULL, NULL);
    if (!state->Div_singleton) return 0;
    state->Mod_type = make_type(state, "Mod", state->operator_type, NULL, 0,
        "Mod");
    if (!state->Mod_type) return 0;
    state->Mod_singleton = PyType_GenericNew((PyTypeObject *)state->Mod_type,
                                             NULL, NULL);
    if (!state->Mod_singleton) return 0;
    state->Pow_type = make_type(state, "Pow", state->operator_type, NULL, 0,
        "Pow");
    if (!state->Pow_type) return 0;
    state->Pow_singleton = PyType_GenericNew((PyTypeObject *)state->Pow_type,
                                             NULL, NULL);
    if (!state->Pow_singleton) return 0;
    state->LShift_type = make_type(state, "LShift", state->operator_type, NULL,
                                   0,
        "LShift");
    if (!state->LShift_type) return 0;
    state->LShift_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->LShift_type, NULL,
                                                NULL);
    if (!state->LShift_singleton) return 0;
    state->RShift_type = make_type(state, "RShift", state->operator_type, NULL,
                                   0,
        "RShift");
    if (!state->RShift_type) return 0;
    state->RShift_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->RShift_type, NULL,
                                                NULL);
    if (!state->RShift_singleton) return 0;
    state->BitOr_type = make_type(state, "BitOr", state->operator_type, NULL, 0,
        "BitOr");
    if (!state->BitOr_type) return 0;
    state->BitOr_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->BitOr_type, NULL, NULL);
    if (!state->BitOr_singleton) return 0;
    state->BitXor_type = make_type(state, "BitXor", state->operator_type, NULL,
                                   0,
        "BitXor");
    if (!state->BitXor_type) return 0;
    state->BitXor_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->BitXor_type, NULL,
                                                NULL);
    if (!state->BitXor_singleton) return 0;
    state->BitAnd_type = make_type(state, "BitAnd", state->operator_type, NULL,
                                   0,
        "BitAnd");
    if (!state->BitAnd_type) return 0;
    state->BitAnd_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->BitAnd_type, NULL,
                                                NULL);
    if (!state->BitAnd_singleton) return 0;
    state->FloorDiv_type = make_type(state, "FloorDiv", state->operator_type,
                                     NULL, 0,
        "FloorDiv");
    if (!state->FloorDiv_type) return 0;
    state->FloorDiv_singleton = PyType_GenericNew((PyTypeObject
                                                  *)state->FloorDiv_type, NULL,
                                                  NULL);
    if (!state->FloorDiv_singleton) return 0;
    state->unaryop_type = make_type(state, "unaryop", state->AST_type, NULL, 0,
        "unaryop = Invert | Not | UAdd | USub");
    if (!state->unaryop_type) return 0;
    if (!add_attributes(state, state->unaryop_type, NULL, 0)) return 0;
    state->Invert_type = make_type(state, "Invert", state->unaryop_type, NULL,
                                   0,
        "Invert");
    if (!state->Invert_type) return 0;
    state->Invert_singleton = PyType_GenericNew((PyTypeObject
                                                *)state->Invert_type, NULL,
                                                NULL);
    if (!state->Invert_singleton) return 0;
    state->Not_type = make_type(state, "Not", state->unaryop_type, NULL, 0,
        "Not");
    if (!state->Not_type) return 0;
    state->Not_singleton = PyType_GenericNew((PyTypeObject *)state->Not_type,
                                             NULL, NULL);
    if (!state->Not_singleton) return 0;
    state->UAdd_type = make_type(state, "UAdd", state->unaryop_type, NULL, 0,
        "UAdd");
    if (!state->UAdd_type) return 0;
    state->UAdd_singleton = PyType_GenericNew((PyTypeObject *)state->UAdd_type,
                                              NULL, NULL);
    if (!state->UAdd_singleton) return 0;
    state->USub_type = make_type(state, "USub", state->unaryop_type, NULL, 0,
        "USub");
    if (!state->USub_type) return 0;
    state->USub_singleton = PyType_GenericNew((PyTypeObject *)state->USub_type,
                                              NULL, NULL);
    if (!state->USub_singleton) return 0;
    state->cmpop_type = make_type(state, "cmpop", state->AST_type, NULL, 0,
        "cmpop = Eq | NotEq | Lt | LtE | Gt | GtE | Is | IsNot | In | NotIn");
    if (!state->cmpop_type) return 0;
    if (!add_attributes(state, state->cmpop_type, NULL, 0)) return 0;
    state->Eq_type = make_type(state, "Eq", state->cmpop_type, NULL, 0,
        "Eq");
    if (!state->Eq_type) return 0;
    state->Eq_singleton = PyType_GenericNew((PyTypeObject *)state->Eq_type,
                                            NULL, NULL);
    if (!state->Eq_singleton) return 0;
    state->NotEq_type = make_type(state, "NotEq", state->cmpop_type, NULL, 0,
        "NotEq");
    if (!state->NotEq_type) return 0;
    state->NotEq_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->NotEq_type, NULL, NULL);
    if (!state->NotEq_singleton) return 0;
    state->Lt_type = make_type(state, "Lt", state->cmpop_type, NULL, 0,
        "Lt");
    if (!state->Lt_type) return 0;
    state->Lt_singleton = PyType_GenericNew((PyTypeObject *)state->Lt_type,
                                            NULL, NULL);
    if (!state->Lt_singleton) return 0;
    state->LtE_type = make_type(state, "LtE", state->cmpop_type, NULL, 0,
        "LtE");
    if (!state->LtE_type) return 0;
    state->LtE_singleton = PyType_GenericNew((PyTypeObject *)state->LtE_type,
                                             NULL, NULL);
    if (!state->LtE_singleton) return 0;
    state->Gt_type = make_type(state, "Gt", state->cmpop_type, NULL, 0,
        "Gt");
    if (!state->Gt_type) return 0;
    state->Gt_singleton = PyType_GenericNew((PyTypeObject *)state->Gt_type,
                                            NULL, NULL);
    if (!state->Gt_singleton) return 0;
    state->GtE_type = make_type(state, "GtE", state->cmpop_type, NULL, 0,
        "GtE");
    if (!state->GtE_type) return 0;
    state->GtE_singleton = PyType_GenericNew((PyTypeObject *)state->GtE_type,
                                             NULL, NULL);
    if (!state->GtE_singleton) return 0;
    state->Is_type = make_type(state, "Is", state->cmpop_type, NULL, 0,
        "Is");
    if (!state->Is_type) return 0;
    state->Is_singleton = PyType_GenericNew((PyTypeObject *)state->Is_type,
                                            NULL, NULL);
    if (!state->Is_singleton) return 0;
    state->IsNot_type = make_type(state, "IsNot", state->cmpop_type, NULL, 0,
        "IsNot");
    if (!state->IsNot_type) return 0;
    state->IsNot_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->IsNot_type, NULL, NULL);
    if (!state->IsNot_singleton) return 0;
    state->In_type = make_type(state, "In", state->cmpop_type, NULL, 0,
        "In");
    if (!state->In_type) return 0;
    state->In_singleton = PyType_GenericNew((PyTypeObject *)state->In_type,
                                            NULL, NULL);
    if (!state->In_singleton) return 0;
    state->NotIn_type = make_type(state, "NotIn", state->cmpop_type, NULL, 0,
        "NotIn");
    if (!state->NotIn_type) return 0;
    state->NotIn_singleton = PyType_GenericNew((PyTypeObject
                                               *)state->NotIn_type, NULL, NULL);
    if (!state->NotIn_singleton) return 0;
    state->comprehension_type = make_type(state, "comprehension",
                                          state->AST_type,
                                          comprehension_fields, 4,
        "comprehension(expr target, expr iter, expr* ifs, int is_async)");
    if (!state->comprehension_type) return 0;
    if (!add_attributes(state, state->comprehension_type, NULL, 0)) return 0;
    state->excepthandler_type = make_type(state, "excepthandler",
                                          state->AST_type, NULL, 0,
        "excepthandler = ExceptHandler(expr? type, identifier? name, stmt* body)");
    if (!state->excepthandler_type) return 0;
    if (!add_attributes(state, state->excepthandler_type,
        excepthandler_attributes, 4)) return 0;
    if (PyObject_SetAttr(state->excepthandler_type, state->end_lineno, Py_None)
        == -1)
        return 0;
    if (PyObject_SetAttr(state->excepthandler_type, state->end_col_offset,
        Py_None) == -1)
        return 0;
    state->ExceptHandler_type = make_type(state, "ExceptHandler",
                                          state->excepthandler_type,
                                          ExceptHandler_fields, 3,
        "ExceptHandler(expr? type, identifier? name, stmt* body)");
    if (!state->ExceptHandler_type) return 0;
    if (PyObject_SetAttr(state->ExceptHandler_type, state->type, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->ExceptHandler_type, state->name, Py_None) == -1)
        return 0;
    state->arguments_type = make_type(state, "arguments", state->AST_type,
                                      arguments_fields, 7,
        "arguments(arg* posonlyargs, arg* args, arg? vararg, arg* kwonlyargs, expr* kw_defaults, arg? kwarg, expr* defaults)");
    if (!state->arguments_type) return 0;
    if (!add_attributes(state, state->arguments_type, NULL, 0)) return 0;
    if (PyObject_SetAttr(state->arguments_type, state->vararg, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->arguments_type, state->kwarg, Py_None) == -1)
        return 0;
    state->arg_type = make_type(state, "arg", state->AST_type, arg_fields, 3,
        "arg(identifier arg, expr? annotation, string? type_comment)");
    if (!state->arg_type) return 0;
    if (!add_attributes(state, state->arg_type, arg_attributes, 4)) return 0;
    if (PyObject_SetAttr(state->arg_type, state->annotation, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->arg_type, state->type_comment, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->arg_type, state->end_lineno, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->arg_type, state->end_col_offset, Py_None) == -1)
        return 0;
    state->keyword_type = make_type(state, "keyword", state->AST_type,
                                    keyword_fields, 2,
        "keyword(identifier? arg, expr value)");
    if (!state->keyword_type) return 0;
    if (!add_attributes(state, state->keyword_type, keyword_attributes, 4))
        return 0;
    if (PyObject_SetAttr(state->keyword_type, state->arg, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->keyword_type, state->end_lineno, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->keyword_type, state->end_col_offset, Py_None)
        == -1)
        return 0;
    state->alias_type = make_type(state, "alias", state->AST_type,
                                  alias_fields, 2,
        "alias(identifier name, identifier? asname)");
    if (!state->alias_type) return 0;
    if (!add_attributes(state, state->alias_type, alias_attributes, 4)) return
        0;
    if (PyObject_SetAttr(state->alias_type, state->asname, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->alias_type, state->end_lineno, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->alias_type, state->end_col_offset, Py_None) ==
        -1)
        return 0;
    state->withitem_type = make_type(state, "withitem", state->AST_type,
                                     withitem_fields, 2,
        "withitem(expr context_expr, expr? optional_vars)");
    if (!state->withitem_type) return 0;
    if (!add_attributes(state, state->withitem_type, NULL, 0)) return 0;
    if (PyObject_SetAttr(state->withitem_type, state->optional_vars, Py_None)
        == -1)
        return 0;
    state->match_case_type = make_type(state, "match_case", state->AST_type,
                                       match_case_fields, 3,
        "match_case(pattern pattern, expr? guard, stmt* body)");
    if (!state->match_case_type) return 0;
    if (!add_attributes(state, state->match_case_type, NULL, 0)) return 0;
    if (PyObject_SetAttr(state->match_case_type, state->guard, Py_None) == -1)
        return 0;
    state->pattern_type = make_type(state, "pattern", state->AST_type, NULL, 0,
        "pattern = MatchValue(expr value)\n"
        "        | MatchSingleton(constant value)\n"
        "        | MatchSequence(pattern* patterns)\n"
        "        | MatchMapping(expr* keys, pattern* patterns, identifier? rest)\n"
        "        | MatchClass(expr cls, pattern* patterns, identifier* kwd_attrs, pattern* kwd_patterns)\n"
        "        | MatchStar(identifier? name)\n"
        "        | MatchAs(pattern? pattern, identifier? name)\n"
        "        | MatchOr(pattern* patterns)");
    if (!state->pattern_type) return 0;
    if (!add_attributes(state, state->pattern_type, pattern_attributes, 4))
        return 0;
    state->MatchValue_type = make_type(state, "MatchValue",
                                       state->pattern_type, MatchValue_fields,
                                       1,
        "MatchValue(expr value)");
    if (!state->MatchValue_type) return 0;
    state->MatchSingleton_type = make_type(state, "MatchSingleton",
                                           state->pattern_type,
                                           MatchSingleton_fields, 1,
        "MatchSingleton(constant value)");
    if (!state->MatchSingleton_type) return 0;
    state->MatchSequence_type = make_type(state, "MatchSequence",
                                          state->pattern_type,
                                          MatchSequence_fields, 1,
        "MatchSequence(pattern* patterns)");
    if (!state->MatchSequence_type) return 0;
    state->MatchMapping_type = make_type(state, "MatchMapping",
                                         state->pattern_type,
                                         MatchMapping_fields, 3,
        "MatchMapping(expr* keys, pattern* patterns, identifier? rest)");
    if (!state->MatchMapping_type) return 0;
    if (PyObject_SetAttr(state->MatchMapping_type, state->rest, Py_None) == -1)
        return 0;
    state->MatchClass_type = make_type(state, "MatchClass",
                                       state->pattern_type, MatchClass_fields,
                                       4,
        "MatchClass(expr cls, pattern* patterns, identifier* kwd_attrs, pattern* kwd_patterns)");
    if (!state->MatchClass_type) return 0;
    state->MatchStar_type = make_type(state, "MatchStar", state->pattern_type,
                                      MatchStar_fields, 1,
        "MatchStar(identifier? name)");
    if (!state->MatchStar_type) return 0;
    if (PyObject_SetAttr(state->MatchStar_type, state->name, Py_None) == -1)
        return 0;
    state->MatchAs_type = make_type(state, "MatchAs", state->pattern_type,
                                    MatchAs_fields, 2,
        "MatchAs(pattern? pattern, identifier? name)");
    if (!state->MatchAs_type) return 0;
    if (PyObject_SetAttr(state->MatchAs_type, state->pattern, Py_None) == -1)
        return 0;
    if (PyObject_SetAttr(state->MatchAs_type, state->name, Py_None) == -1)
        return 0;
    state->MatchOr_type = make_type(state, "MatchOr", state->pattern_type,
                                    MatchOr_fields, 1,
        "MatchOr(pattern* patterns)");
    if (!state->MatchOr_type) return 0;
    state->type_ignore_type = make_type(state, "type_ignore", state->AST_type,
                                        NULL, 0,
        "type_ignore = TypeIgnore(int lineno, string tag)");
    if (!state->type_ignore_type) return 0;
    if (!add_attributes(state, state->type_ignore_type, NULL, 0)) return 0;
    state->TypeIgnore_type = make_type(state, "TypeIgnore",
                                       state->type_ignore_type,
                                       TypeIgnore_fields, 2,
        "TypeIgnore(int lineno, string tag)");
    if (!state->TypeIgnore_type) return 0;
    state->type_param_type = make_type(state, "type_param", state->AST_type,
                                       NULL, 0,
        "type_param = TypeVar(identifier name, expr? bound)\n"
        "           | ParamSpec(identifier name)\n"
        "           | TypeVarTuple(identifier name)");
    if (!state->type_param_type) return 0;
    if (!add_attributes(state, state->type_param_type, type_param_attributes,
        4)) return 0;
    state->TypeVar_type = make_type(state, "TypeVar", state->type_param_type,
                                    TypeVar_fields, 2,
        "TypeVar(identifier name, expr? bound)");
    if (!state->TypeVar_type) return 0;
    if (PyObject_SetAttr(state->TypeVar_type, state->bound, Py_None) == -1)
        return 0;
    state->ParamSpec_type = make_type(state, "ParamSpec",
                                      state->type_param_type, ParamSpec_fields,
                                      1,
        "ParamSpec(identifier name)");
    if (!state->ParamSpec_type) return 0;
    state->TypeVarTuple_type = make_type(state, "TypeVarTuple",
                                         state->type_param_type,
                                         TypeVarTuple_fields, 1,
        "TypeVarTuple(identifier name)");
    if (!state->TypeVarTuple_type) return 0;

    state->initialized = 1;
    return 1;
}

static int obj2ast_mod(struct ast_state *state, PyObject* obj, mod_ty* out,
                       PyArena* arena);
static int obj2ast_stmt(struct ast_state *state, PyObject* obj, stmt_ty* out,
                        PyArena* arena);
static int obj2ast_expr(struct ast_state *state, PyObject* obj, expr_ty* out,
                        PyArena* arena);
static int obj2ast_expr_context(struct ast_state *state, PyObject* obj,
                                expr_context_ty* out, PyArena* arena);
static int obj2ast_boolop(struct ast_state *state, PyObject* obj, boolop_ty*
                          out, PyArena* arena);
static int obj2ast_operator(struct ast_state *state, PyObject* obj,
                            operator_ty* out, PyArena* arena);
static int obj2ast_unaryop(struct ast_state *state, PyObject* obj, unaryop_ty*
                           out, PyArena* arena);
static int obj2ast_cmpop(struct ast_state *state, PyObject* obj, cmpop_ty* out,
                         PyArena* arena);
static int obj2ast_comprehension(struct ast_state *state, PyObject* obj,
                                 comprehension_ty* out, PyArena* arena);
static int obj2ast_excepthandler(struct ast_state *state, PyObject* obj,
                                 excepthandler_ty* out, PyArena* arena);
static int obj2ast_arguments(struct ast_state *state, PyObject* obj,
                             arguments_ty* out, PyArena* arena);
static int obj2ast_arg(struct ast_state *state, PyObject* obj, arg_ty* out,
                       PyArena* arena);
static int obj2ast_keyword(struct ast_state *state, PyObject* obj, keyword_ty*
                           out, PyArena* arena);
static int obj2ast_alias(struct ast_state *state, PyObject* obj, alias_ty* out,
                         PyArena* arena);
static int obj2ast_withitem(struct ast_state *state, PyObject* obj,
                            withitem_ty* out, PyArena* arena);
static int obj2ast_match_case(struct ast_state *state, PyObject* obj,
                              match_case_ty* out, PyArena* arena);
static int obj2ast_pattern(struct ast_state *state, PyObject* obj, pattern_ty*
                           out, PyArena* arena);
static int obj2ast_type_ignore(struct ast_state *state, PyObject* obj,
                               type_ignore_ty* out, PyArena* arena);
static int obj2ast_type_param(struct ast_state *state, PyObject* obj,
                              type_param_ty* out, PyArena* arena);

mod_ty
_PyAST_Module(asdl_stmt_seq * body, asdl_type_ignore_seq * type_ignores,
              PyArena *arena)
{
    mod_ty p;
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Module_kind;
    p->v.Module.body = body;
    p->v.Module.type_ignores = type_ignores;
    return p;
}

mod_ty
_PyAST_Interactive(asdl_stmt_seq * body, PyArena *arena)
{
    mod_ty p;
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Interactive_kind;
    p->v.Interactive.body = body;
    return p;
}

mod_ty
_PyAST_Expression(expr_ty body, PyArena *arena)
{
    mod_ty p;
    if (!body) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'body' is required for Expression");
        return NULL;
    }
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Expression_kind;
    p->v.Expression.body = body;
    return p;
}

mod_ty
_PyAST_FunctionType(asdl_expr_seq * argtypes, expr_ty returns, PyArena *arena)
{
    mod_ty p;
    if (!returns) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'returns' is required for FunctionType");
        return NULL;
    }
    p = (mod_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = FunctionType_kind;
    p->v.FunctionType.argtypes = argtypes;
    p->v.FunctionType.returns = returns;
    return p;
}

stmt_ty
_PyAST_FunctionDef(identifier name, arguments_ty args, asdl_stmt_seq * body,
                   asdl_expr_seq * decorator_list, expr_ty returns, string
                   type_comment, asdl_type_param_seq * type_params, int lineno,
                   int col_offset, int end_lineno, int end_col_offset, PyArena
                   *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for FunctionDef");
        return NULL;
    }
    if (!args) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'args' is required for FunctionDef");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = FunctionDef_kind;
    p->v.FunctionDef.name = name;
    p->v.FunctionDef.args = args;
    p->v.FunctionDef.body = body;
    p->v.FunctionDef.decorator_list = decorator_list;
    p->v.FunctionDef.returns = returns;
    p->v.FunctionDef.type_comment = type_comment;
    p->v.FunctionDef.type_params = type_params;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AsyncFunctionDef(identifier name, arguments_ty args, asdl_stmt_seq *
                        body, asdl_expr_seq * decorator_list, expr_ty returns,
                        string type_comment, asdl_type_param_seq * type_params,
                        int lineno, int col_offset, int end_lineno, int
                        end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for AsyncFunctionDef");
        return NULL;
    }
    if (!args) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'args' is required for AsyncFunctionDef");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AsyncFunctionDef_kind;
    p->v.AsyncFunctionDef.name = name;
    p->v.AsyncFunctionDef.args = args;
    p->v.AsyncFunctionDef.body = body;
    p->v.AsyncFunctionDef.decorator_list = decorator_list;
    p->v.AsyncFunctionDef.returns = returns;
    p->v.AsyncFunctionDef.type_comment = type_comment;
    p->v.AsyncFunctionDef.type_params = type_params;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_ClassDef(identifier name, asdl_expr_seq * bases, asdl_keyword_seq *
                keywords, asdl_stmt_seq * body, asdl_expr_seq * decorator_list,
                asdl_type_param_seq * type_params, int lineno, int col_offset,
                int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for ClassDef");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ClassDef_kind;
    p->v.ClassDef.name = name;
    p->v.ClassDef.bases = bases;
    p->v.ClassDef.keywords = keywords;
    p->v.ClassDef.body = body;
    p->v.ClassDef.decorator_list = decorator_list;
    p->v.ClassDef.type_params = type_params;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Return(expr_ty value, int lineno, int col_offset, int end_lineno, int
              end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Return_kind;
    p->v.Return.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Delete(asdl_expr_seq * targets, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Delete_kind;
    p->v.Delete.targets = targets;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Assign(asdl_expr_seq * targets, expr_ty value, string type_comment, int
              lineno, int col_offset, int end_lineno, int end_col_offset,
              PyArena *arena)
{
    stmt_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Assign");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Assign_kind;
    p->v.Assign.targets = targets;
    p->v.Assign.value = value;
    p->v.Assign.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_TypeAlias(expr_ty name, asdl_type_param_seq * type_params, expr_ty
                 value, int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for TypeAlias");
        return NULL;
    }
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for TypeAlias");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeAlias_kind;
    p->v.TypeAlias.name = name;
    p->v.TypeAlias.type_params = type_params;
    p->v.TypeAlias.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AugAssign(expr_ty target, operator_ty op, expr_ty value, int lineno, int
                 col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for AugAssign");
        return NULL;
    }
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for AugAssign");
        return NULL;
    }
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for AugAssign");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AugAssign_kind;
    p->v.AugAssign.target = target;
    p->v.AugAssign.op = op;
    p->v.AugAssign.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AnnAssign(expr_ty target, expr_ty annotation, expr_ty value, int simple,
                 int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for AnnAssign");
        return NULL;
    }
    if (!annotation) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'annotation' is required for AnnAssign");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AnnAssign_kind;
    p->v.AnnAssign.target = target;
    p->v.AnnAssign.annotation = annotation;
    p->v.AnnAssign.value = value;
    p->v.AnnAssign.simple = simple;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_For(expr_ty target, expr_ty iter, asdl_stmt_seq * body, asdl_stmt_seq *
           orelse, string type_comment, int lineno, int col_offset, int
           end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for For");
        return NULL;
    }
    if (!iter) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'iter' is required for For");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = For_kind;
    p->v.For.target = target;
    p->v.For.iter = iter;
    p->v.For.body = body;
    p->v.For.orelse = orelse;
    p->v.For.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AsyncFor(expr_ty target, expr_ty iter, asdl_stmt_seq * body,
                asdl_stmt_seq * orelse, string type_comment, int lineno, int
                col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for AsyncFor");
        return NULL;
    }
    if (!iter) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'iter' is required for AsyncFor");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AsyncFor_kind;
    p->v.AsyncFor.target = target;
    p->v.AsyncFor.iter = iter;
    p->v.AsyncFor.body = body;
    p->v.AsyncFor.orelse = orelse;
    p->v.AsyncFor.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_While(expr_ty test, asdl_stmt_seq * body, asdl_stmt_seq * orelse, int
             lineno, int col_offset, int end_lineno, int end_col_offset,
             PyArena *arena)
{
    stmt_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for While");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = While_kind;
    p->v.While.test = test;
    p->v.While.body = body;
    p->v.While.orelse = orelse;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_If(expr_ty test, asdl_stmt_seq * body, asdl_stmt_seq * orelse, int
          lineno, int col_offset, int end_lineno, int end_col_offset, PyArena
          *arena)
{
    stmt_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for If");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = If_kind;
    p->v.If.test = test;
    p->v.If.body = body;
    p->v.If.orelse = orelse;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_With(asdl_withitem_seq * items, asdl_stmt_seq * body, string
            type_comment, int lineno, int col_offset, int end_lineno, int
            end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = With_kind;
    p->v.With.items = items;
    p->v.With.body = body;
    p->v.With.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_AsyncWith(asdl_withitem_seq * items, asdl_stmt_seq * body, string
                 type_comment, int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = AsyncWith_kind;
    p->v.AsyncWith.items = items;
    p->v.AsyncWith.body = body;
    p->v.AsyncWith.type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Match(expr_ty subject, asdl_match_case_seq * cases, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!subject) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'subject' is required for Match");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Match_kind;
    p->v.Match.subject = subject;
    p->v.Match.cases = cases;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Raise(expr_ty exc, expr_ty cause, int lineno, int col_offset, int
             end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Raise_kind;
    p->v.Raise.exc = exc;
    p->v.Raise.cause = cause;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Try(asdl_stmt_seq * body, asdl_excepthandler_seq * handlers,
           asdl_stmt_seq * orelse, asdl_stmt_seq * finalbody, int lineno, int
           col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Try_kind;
    p->v.Try.body = body;
    p->v.Try.handlers = handlers;
    p->v.Try.orelse = orelse;
    p->v.Try.finalbody = finalbody;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_TryStar(asdl_stmt_seq * body, asdl_excepthandler_seq * handlers,
               asdl_stmt_seq * orelse, asdl_stmt_seq * finalbody, int lineno,
               int col_offset, int end_lineno, int end_col_offset, PyArena
               *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TryStar_kind;
    p->v.TryStar.body = body;
    p->v.TryStar.handlers = handlers;
    p->v.TryStar.orelse = orelse;
    p->v.TryStar.finalbody = finalbody;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Assert(expr_ty test, expr_ty msg, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for Assert");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Assert_kind;
    p->v.Assert.test = test;
    p->v.Assert.msg = msg;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Import(asdl_alias_seq * names, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Import_kind;
    p->v.Import.names = names;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_ImportFrom(identifier module, asdl_alias_seq * names, int level, int
                  lineno, int col_offset, int end_lineno, int end_col_offset,
                  PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ImportFrom_kind;
    p->v.ImportFrom.module = module;
    p->v.ImportFrom.names = names;
    p->v.ImportFrom.level = level;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Global(asdl_identifier_seq * names, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Global_kind;
    p->v.Global.names = names;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Nonlocal(asdl_identifier_seq * names, int lineno, int col_offset, int
                end_lineno, int end_col_offset, PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Nonlocal_kind;
    p->v.Nonlocal.names = names;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Expr(expr_ty value, int lineno, int col_offset, int end_lineno, int
            end_col_offset, PyArena *arena)
{
    stmt_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Expr");
        return NULL;
    }
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Expr_kind;
    p->v.Expr.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Pass(int lineno, int col_offset, int end_lineno, int end_col_offset,
            PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Pass_kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Break(int lineno, int col_offset, int end_lineno, int end_col_offset,
             PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Break_kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

stmt_ty
_PyAST_Continue(int lineno, int col_offset, int end_lineno, int end_col_offset,
                PyArena *arena)
{
    stmt_ty p;
    p = (stmt_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Continue_kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_BoolOp(boolop_ty op, asdl_expr_seq * values, int lineno, int col_offset,
              int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for BoolOp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = BoolOp_kind;
    p->v.BoolOp.op = op;
    p->v.BoolOp.values = values;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_NamedExpr(expr_ty target, expr_ty value, int lineno, int col_offset, int
                 end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for NamedExpr");
        return NULL;
    }
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for NamedExpr");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = NamedExpr_kind;
    p->v.NamedExpr.target = target;
    p->v.NamedExpr.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_BinOp(expr_ty left, operator_ty op, expr_ty right, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!left) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'left' is required for BinOp");
        return NULL;
    }
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for BinOp");
        return NULL;
    }
    if (!right) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'right' is required for BinOp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = BinOp_kind;
    p->v.BinOp.left = left;
    p->v.BinOp.op = op;
    p->v.BinOp.right = right;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_UnaryOp(unaryop_ty op, expr_ty operand, int lineno, int col_offset, int
               end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!op) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'op' is required for UnaryOp");
        return NULL;
    }
    if (!operand) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'operand' is required for UnaryOp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = UnaryOp_kind;
    p->v.UnaryOp.op = op;
    p->v.UnaryOp.operand = operand;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Lambda(arguments_ty args, expr_ty body, int lineno, int col_offset, int
              end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!args) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'args' is required for Lambda");
        return NULL;
    }
    if (!body) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'body' is required for Lambda");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Lambda_kind;
    p->v.Lambda.args = args;
    p->v.Lambda.body = body;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_IfExp(expr_ty test, expr_ty body, expr_ty orelse, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!test) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'test' is required for IfExp");
        return NULL;
    }
    if (!body) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'body' is required for IfExp");
        return NULL;
    }
    if (!orelse) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'orelse' is required for IfExp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = IfExp_kind;
    p->v.IfExp.test = test;
    p->v.IfExp.body = body;
    p->v.IfExp.orelse = orelse;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Dict(asdl_expr_seq * keys, asdl_expr_seq * values, int lineno, int
            col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Dict_kind;
    p->v.Dict.keys = keys;
    p->v.Dict.values = values;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Set(asdl_expr_seq * elts, int lineno, int col_offset, int end_lineno,
           int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Set_kind;
    p->v.Set.elts = elts;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_ListComp(expr_ty elt, asdl_comprehension_seq * generators, int lineno,
                int col_offset, int end_lineno, int end_col_offset, PyArena
                *arena)
{
    expr_ty p;
    if (!elt) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'elt' is required for ListComp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ListComp_kind;
    p->v.ListComp.elt = elt;
    p->v.ListComp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_SetComp(expr_ty elt, asdl_comprehension_seq * generators, int lineno,
               int col_offset, int end_lineno, int end_col_offset, PyArena
               *arena)
{
    expr_ty p;
    if (!elt) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'elt' is required for SetComp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = SetComp_kind;
    p->v.SetComp.elt = elt;
    p->v.SetComp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_DictComp(expr_ty key, expr_ty value, asdl_comprehension_seq *
                generators, int lineno, int col_offset, int end_lineno, int
                end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!key) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'key' is required for DictComp");
        return NULL;
    }
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for DictComp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = DictComp_kind;
    p->v.DictComp.key = key;
    p->v.DictComp.value = value;
    p->v.DictComp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_GeneratorExp(expr_ty elt, asdl_comprehension_seq * generators, int
                    lineno, int col_offset, int end_lineno, int end_col_offset,
                    PyArena *arena)
{
    expr_ty p;
    if (!elt) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'elt' is required for GeneratorExp");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = GeneratorExp_kind;
    p->v.GeneratorExp.elt = elt;
    p->v.GeneratorExp.generators = generators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Await(expr_ty value, int lineno, int col_offset, int end_lineno, int
             end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Await");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Await_kind;
    p->v.Await.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Yield(expr_ty value, int lineno, int col_offset, int end_lineno, int
             end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Yield_kind;
    p->v.Yield.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_YieldFrom(expr_ty value, int lineno, int col_offset, int end_lineno, int
                 end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for YieldFrom");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = YieldFrom_kind;
    p->v.YieldFrom.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Compare(expr_ty left, asdl_int_seq * ops, asdl_expr_seq * comparators,
               int lineno, int col_offset, int end_lineno, int end_col_offset,
               PyArena *arena)
{
    expr_ty p;
    if (!left) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'left' is required for Compare");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Compare_kind;
    p->v.Compare.left = left;
    p->v.Compare.ops = ops;
    p->v.Compare.comparators = comparators;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Call(expr_ty func, asdl_expr_seq * args, asdl_keyword_seq * keywords,
            int lineno, int col_offset, int end_lineno, int end_col_offset,
            PyArena *arena)
{
    expr_ty p;
    if (!func) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'func' is required for Call");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Call_kind;
    p->v.Call.func = func;
    p->v.Call.args = args;
    p->v.Call.keywords = keywords;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_FormattedValue(expr_ty value, int conversion, expr_ty format_spec, int
                      lineno, int col_offset, int end_lineno, int
                      end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for FormattedValue");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = FormattedValue_kind;
    p->v.FormattedValue.value = value;
    p->v.FormattedValue.conversion = conversion;
    p->v.FormattedValue.format_spec = format_spec;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_JoinedStr(asdl_expr_seq * values, int lineno, int col_offset, int
                 end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = JoinedStr_kind;
    p->v.JoinedStr.values = values;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Constant(constant value, string kind, int lineno, int col_offset, int
                end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Constant");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Constant_kind;
    p->v.Constant.value = value;
    p->v.Constant.kind = kind;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Attribute(expr_ty value, identifier attr, expr_context_ty ctx, int
                 lineno, int col_offset, int end_lineno, int end_col_offset,
                 PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Attribute");
        return NULL;
    }
    if (!attr) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'attr' is required for Attribute");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Attribute");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Attribute_kind;
    p->v.Attribute.value = value;
    p->v.Attribute.attr = attr;
    p->v.Attribute.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Subscript(expr_ty value, expr_ty slice, expr_context_ty ctx, int lineno,
                 int col_offset, int end_lineno, int end_col_offset, PyArena
                 *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Subscript");
        return NULL;
    }
    if (!slice) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'slice' is required for Subscript");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Subscript");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Subscript_kind;
    p->v.Subscript.value = value;
    p->v.Subscript.slice = slice;
    p->v.Subscript.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Starred(expr_ty value, expr_context_ty ctx, int lineno, int col_offset,
               int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for Starred");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Starred");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Starred_kind;
    p->v.Starred.value = value;
    p->v.Starred.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Name(identifier id, expr_context_ty ctx, int lineno, int col_offset, int
            end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!id) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'id' is required for Name");
        return NULL;
    }
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Name");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Name_kind;
    p->v.Name.id = id;
    p->v.Name.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_List(asdl_expr_seq * elts, expr_context_ty ctx, int lineno, int
            col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for List");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = List_kind;
    p->v.List.elts = elts;
    p->v.List.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Tuple(asdl_expr_seq * elts, expr_context_ty ctx, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    if (!ctx) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'ctx' is required for Tuple");
        return NULL;
    }
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Tuple_kind;
    p->v.Tuple.elts = elts;
    p->v.Tuple.ctx = ctx;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

expr_ty
_PyAST_Slice(expr_ty lower, expr_ty upper, expr_ty step, int lineno, int
             col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    expr_ty p;
    p = (expr_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = Slice_kind;
    p->v.Slice.lower = lower;
    p->v.Slice.upper = upper;
    p->v.Slice.step = step;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

comprehension_ty
_PyAST_comprehension(expr_ty target, expr_ty iter, asdl_expr_seq * ifs, int
                     is_async, PyArena *arena)
{
    comprehension_ty p;
    if (!target) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'target' is required for comprehension");
        return NULL;
    }
    if (!iter) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'iter' is required for comprehension");
        return NULL;
    }
    p = (comprehension_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->target = target;
    p->iter = iter;
    p->ifs = ifs;
    p->is_async = is_async;
    return p;
}

excepthandler_ty
_PyAST_ExceptHandler(expr_ty type, identifier name, asdl_stmt_seq * body, int
                     lineno, int col_offset, int end_lineno, int
                     end_col_offset, PyArena *arena)
{
    excepthandler_ty p;
    p = (excepthandler_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ExceptHandler_kind;
    p->v.ExceptHandler.type = type;
    p->v.ExceptHandler.name = name;
    p->v.ExceptHandler.body = body;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

arguments_ty
_PyAST_arguments(asdl_arg_seq * posonlyargs, asdl_arg_seq * args, arg_ty
                 vararg, asdl_arg_seq * kwonlyargs, asdl_expr_seq *
                 kw_defaults, arg_ty kwarg, asdl_expr_seq * defaults, PyArena
                 *arena)
{
    arguments_ty p;
    p = (arguments_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->posonlyargs = posonlyargs;
    p->args = args;
    p->vararg = vararg;
    p->kwonlyargs = kwonlyargs;
    p->kw_defaults = kw_defaults;
    p->kwarg = kwarg;
    p->defaults = defaults;
    return p;
}

arg_ty
_PyAST_arg(identifier arg, expr_ty annotation, string type_comment, int lineno,
           int col_offset, int end_lineno, int end_col_offset, PyArena *arena)
{
    arg_ty p;
    if (!arg) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'arg' is required for arg");
        return NULL;
    }
    p = (arg_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->arg = arg;
    p->annotation = annotation;
    p->type_comment = type_comment;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

keyword_ty
_PyAST_keyword(identifier arg, expr_ty value, int lineno, int col_offset, int
               end_lineno, int end_col_offset, PyArena *arena)
{
    keyword_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for keyword");
        return NULL;
    }
    p = (keyword_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->arg = arg;
    p->value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

alias_ty
_PyAST_alias(identifier name, identifier asname, int lineno, int col_offset,
             int end_lineno, int end_col_offset, PyArena *arena)
{
    alias_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for alias");
        return NULL;
    }
    p = (alias_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->name = name;
    p->asname = asname;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

withitem_ty
_PyAST_withitem(expr_ty context_expr, expr_ty optional_vars, PyArena *arena)
{
    withitem_ty p;
    if (!context_expr) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'context_expr' is required for withitem");
        return NULL;
    }
    p = (withitem_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->context_expr = context_expr;
    p->optional_vars = optional_vars;
    return p;
}

match_case_ty
_PyAST_match_case(pattern_ty pattern, expr_ty guard, asdl_stmt_seq * body,
                  PyArena *arena)
{
    match_case_ty p;
    if (!pattern) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'pattern' is required for match_case");
        return NULL;
    }
    p = (match_case_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->pattern = pattern;
    p->guard = guard;
    p->body = body;
    return p;
}

pattern_ty
_PyAST_MatchValue(expr_ty value, int lineno, int col_offset, int end_lineno,
                  int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for MatchValue");
        return NULL;
    }
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchValue_kind;
    p->v.MatchValue.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchSingleton(constant value, int lineno, int col_offset, int
                      end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    if (!value) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'value' is required for MatchSingleton");
        return NULL;
    }
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchSingleton_kind;
    p->v.MatchSingleton.value = value;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchSequence(asdl_pattern_seq * patterns, int lineno, int col_offset,
                     int end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchSequence_kind;
    p->v.MatchSequence.patterns = patterns;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchMapping(asdl_expr_seq * keys, asdl_pattern_seq * patterns,
                    identifier rest, int lineno, int col_offset, int
                    end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchMapping_kind;
    p->v.MatchMapping.keys = keys;
    p->v.MatchMapping.patterns = patterns;
    p->v.MatchMapping.rest = rest;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchClass(expr_ty cls, asdl_pattern_seq * patterns, asdl_identifier_seq
                  * kwd_attrs, asdl_pattern_seq * kwd_patterns, int lineno, int
                  col_offset, int end_lineno, int end_col_offset, PyArena
                  *arena)
{
    pattern_ty p;
    if (!cls) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'cls' is required for MatchClass");
        return NULL;
    }
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchClass_kind;
    p->v.MatchClass.cls = cls;
    p->v.MatchClass.patterns = patterns;
    p->v.MatchClass.kwd_attrs = kwd_attrs;
    p->v.MatchClass.kwd_patterns = kwd_patterns;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchStar(identifier name, int lineno, int col_offset, int end_lineno,
                 int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchStar_kind;
    p->v.MatchStar.name = name;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchAs(pattern_ty pattern, identifier name, int lineno, int col_offset,
               int end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchAs_kind;
    p->v.MatchAs.pattern = pattern;
    p->v.MatchAs.name = name;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

pattern_ty
_PyAST_MatchOr(asdl_pattern_seq * patterns, int lineno, int col_offset, int
               end_lineno, int end_col_offset, PyArena *arena)
{
    pattern_ty p;
    p = (pattern_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = MatchOr_kind;
    p->v.MatchOr.patterns = patterns;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

type_ignore_ty
_PyAST_TypeIgnore(int lineno, string tag, PyArena *arena)
{
    type_ignore_ty p;
    if (!tag) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'tag' is required for TypeIgnore");
        return NULL;
    }
    p = (type_ignore_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeIgnore_kind;
    p->v.TypeIgnore.lineno = lineno;
    p->v.TypeIgnore.tag = tag;
    return p;
}

type_param_ty
_PyAST_TypeVar(identifier name, expr_ty bound, int lineno, int col_offset, int
               end_lineno, int end_col_offset, PyArena *arena)
{
    type_param_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for TypeVar");
        return NULL;
    }
    p = (type_param_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeVar_kind;
    p->v.TypeVar.name = name;
    p->v.TypeVar.bound = bound;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

type_param_ty
_PyAST_ParamSpec(identifier name, int lineno, int col_offset, int end_lineno,
                 int end_col_offset, PyArena *arena)
{
    type_param_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for ParamSpec");
        return NULL;
    }
    p = (type_param_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = ParamSpec_kind;
    p->v.ParamSpec.name = name;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}

type_param_ty
_PyAST_TypeVarTuple(identifier name, int lineno, int col_offset, int
                    end_lineno, int end_col_offset, PyArena *arena)
{
    type_param_ty p;
    if (!name) {
        PyErr_SetString(PyExc_ValueError,
                        "field 'name' is required for TypeVarTuple");
        return NULL;
    }
    p = (type_param_ty)_PyArena_Malloc(arena, sizeof(*p));
    if (!p)
        return NULL;
    p->kind = TypeVarTuple_kind;
    p->v.TypeVarTuple.name = name;
    p->lineno = lineno;
    p->col_offset = col_offset;
    p->end_lineno = end_lineno;
    p->end_col_offset = end_col_offset;
    return p;
}


PyObject*
ast2obj_mod(struct ast_state *state, struct validator *vstate, void* _o)
{
    mod_ty o = (mod_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    switch (o->kind) {
    case Module_kind:
        tp = (PyTypeObject *)state->Module_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Module.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.Module.type_ignores,
                             ast2obj_type_ignore);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_ignores, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Interactive_kind:
        tp = (PyTypeObject *)state->Interactive_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Interactive.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Expression_kind:
        tp = (PyTypeObject *)state->Expression_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Expression.body);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case FunctionType_kind:
        tp = (PyTypeObject *)state->FunctionType_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.FunctionType.argtypes,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->argtypes, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.FunctionType.returns);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->returns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_stmt(struct ast_state *state, struct validator *vstate, void* _o)
{
    stmt_ty o = (stmt_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    switch (o->kind) {
    case FunctionDef_kind:
        tp = (PyTypeObject *)state->FunctionDef_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.FunctionDef.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_arguments(state, vstate, o->v.FunctionDef.args);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.FunctionDef.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.FunctionDef.decorator_list,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->decorator_list, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.FunctionDef.returns);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->returns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.FunctionDef.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.FunctionDef.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AsyncFunctionDef_kind:
        tp = (PyTypeObject *)state->AsyncFunctionDef_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.AsyncFunctionDef.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_arguments(state, vstate, o->v.AsyncFunctionDef.args);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.AsyncFunctionDef.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.AsyncFunctionDef.decorator_list,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->decorator_list, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.AsyncFunctionDef.returns);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->returns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.AsyncFunctionDef.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.AsyncFunctionDef.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ClassDef_kind:
        tp = (PyTypeObject *)state->ClassDef_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.ClassDef.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.ClassDef.bases,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->bases, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.ClassDef.keywords,
                             ast2obj_keyword);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keywords, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.ClassDef.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.ClassDef.decorator_list,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->decorator_list, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.ClassDef.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Return_kind:
        tp = (PyTypeObject *)state->Return_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Return.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Delete_kind:
        tp = (PyTypeObject *)state->Delete_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Delete.targets,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->targets, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Assign_kind:
        tp = (PyTypeObject *)state->Assign_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Assign.targets,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->targets, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.Assign.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.Assign.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case TypeAlias_kind:
        tp = (PyTypeObject *)state->TypeAlias_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.TypeAlias.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.TypeAlias.type_params,
                             ast2obj_type_param);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_params, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.TypeAlias.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AugAssign_kind:
        tp = (PyTypeObject *)state->AugAssign_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.AugAssign.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_operator(state, vstate, o->v.AugAssign.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.AugAssign.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AnnAssign_kind:
        tp = (PyTypeObject *)state->AnnAssign_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.AnnAssign.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.AnnAssign.annotation);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->annotation, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.AnnAssign.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, vstate, o->v.AnnAssign.simple);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->simple, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case For_kind:
        tp = (PyTypeObject *)state->For_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.For.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.For.iter);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->iter, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.For.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.For.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.For.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AsyncFor_kind:
        tp = (PyTypeObject *)state->AsyncFor_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.AsyncFor.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.AsyncFor.iter);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->iter, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.AsyncFor.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.AsyncFor.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.AsyncFor.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case While_kind:
        tp = (PyTypeObject *)state->While_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.While.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.While.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.While.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case If_kind:
        tp = (PyTypeObject *)state->If_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.If.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.If.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.If.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case With_kind:
        tp = (PyTypeObject *)state->With_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.With.items,
                             ast2obj_withitem);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->items, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.With.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.With.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case AsyncWith_kind:
        tp = (PyTypeObject *)state->AsyncWith_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.AsyncWith.items,
                             ast2obj_withitem);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->items, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.AsyncWith.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.AsyncWith.type_comment);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type_comment, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Match_kind:
        tp = (PyTypeObject *)state->Match_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Match.subject);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->subject, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Match.cases,
                             ast2obj_match_case);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->cases, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Raise_kind:
        tp = (PyTypeObject *)state->Raise_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Raise.exc);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->exc, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.Raise.cause);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->cause, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Try_kind:
        tp = (PyTypeObject *)state->Try_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Try.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Try.handlers,
                             ast2obj_excepthandler);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->handlers, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Try.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Try.finalbody,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->finalbody, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case TryStar_kind:
        tp = (PyTypeObject *)state->TryStar_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.TryStar.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.TryStar.handlers,
                             ast2obj_excepthandler);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->handlers, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.TryStar.orelse,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.TryStar.finalbody,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->finalbody, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Assert_kind:
        tp = (PyTypeObject *)state->Assert_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Assert.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.Assert.msg);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->msg, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Import_kind:
        tp = (PyTypeObject *)state->Import_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Import.names,
                             ast2obj_alias);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ImportFrom_kind:
        tp = (PyTypeObject *)state->ImportFrom_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.ImportFrom.module);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->module, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.ImportFrom.names,
                             ast2obj_alias);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, vstate, o->v.ImportFrom.level);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->level, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Global_kind:
        tp = (PyTypeObject *)state->Global_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Global.names,
                             ast2obj_identifier);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Nonlocal_kind:
        tp = (PyTypeObject *)state->Nonlocal_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Nonlocal.names,
                             ast2obj_identifier);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->names, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Expr_kind:
        tp = (PyTypeObject *)state->Expr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Expr.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Pass_kind:
        tp = (PyTypeObject *)state->Pass_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        break;
    case Break_kind:
        tp = (PyTypeObject *)state->Break_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        break;
    case Continue_kind:
        tp = (PyTypeObject *)state->Continue_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        break;
    }
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_expr(struct ast_state *state, struct validator *vstate, void* _o)
{
    expr_ty o = (expr_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    switch (o->kind) {
    case BoolOp_kind:
        tp = (PyTypeObject *)state->BoolOp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_boolop(state, vstate, o->v.BoolOp.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.BoolOp.values,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->values, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case NamedExpr_kind:
        tp = (PyTypeObject *)state->NamedExpr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.NamedExpr.target);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->target, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.NamedExpr.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case BinOp_kind:
        tp = (PyTypeObject *)state->BinOp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.BinOp.left);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->left, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_operator(state, vstate, o->v.BinOp.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.BinOp.right);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->right, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case UnaryOp_kind:
        tp = (PyTypeObject *)state->UnaryOp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_unaryop(state, vstate, o->v.UnaryOp.op);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->op, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.UnaryOp.operand);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->operand, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Lambda_kind:
        tp = (PyTypeObject *)state->Lambda_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_arguments(state, vstate, o->v.Lambda.args);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.Lambda.body);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case IfExp_kind:
        tp = (PyTypeObject *)state->IfExp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.IfExp.test);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->test, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.IfExp.body);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.IfExp.orelse);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->orelse, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Dict_kind:
        tp = (PyTypeObject *)state->Dict_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Dict.keys,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keys, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Dict.values,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->values, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Set_kind:
        tp = (PyTypeObject *)state->Set_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Set.elts,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elts, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ListComp_kind:
        tp = (PyTypeObject *)state->ListComp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.ListComp.elt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elt, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.ListComp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case SetComp_kind:
        tp = (PyTypeObject *)state->SetComp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.SetComp.elt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elt, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.SetComp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case DictComp_kind:
        tp = (PyTypeObject *)state->DictComp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.DictComp.key);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->key, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.DictComp.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.DictComp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case GeneratorExp_kind:
        tp = (PyTypeObject *)state->GeneratorExp_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.GeneratorExp.elt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elt, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.GeneratorExp.generators,
                             ast2obj_comprehension);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->generators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Await_kind:
        tp = (PyTypeObject *)state->Await_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Await.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Yield_kind:
        tp = (PyTypeObject *)state->Yield_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Yield.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case YieldFrom_kind:
        tp = (PyTypeObject *)state->YieldFrom_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.YieldFrom.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Compare_kind:
        tp = (PyTypeObject *)state->Compare_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Compare.left);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->left, value) == -1)
            goto failed;
        Py_DECREF(value);
        {
            Py_ssize_t i, n = asdl_seq_LEN(o->v.Compare.ops);
            value = PyList_New(n);
            if (!value) goto failed;
            for(i = 0; i < n; i++)
                PyList_SET_ITEM(value, i, ast2obj_cmpop(state, vstate, (cmpop_ty)asdl_seq_GET(o->v.Compare.ops, i)));
        }
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ops, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.Compare.comparators, ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->comparators, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Call_kind:
        tp = (PyTypeObject *)state->Call_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Call.func);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->func, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Call.args,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->args, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Call.keywords,
                             ast2obj_keyword);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keywords, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case FormattedValue_kind:
        tp = (PyTypeObject *)state->FormattedValue_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.FormattedValue.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_int(state, vstate, o->v.FormattedValue.conversion);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->conversion, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.FormattedValue.format_spec);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->format_spec, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case JoinedStr_kind:
        tp = (PyTypeObject *)state->JoinedStr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.JoinedStr.values,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->values, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Constant_kind:
        tp = (PyTypeObject *)state->Constant_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_constant(state, vstate, o->v.Constant.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.Constant.kind);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->kind, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Attribute_kind:
        tp = (PyTypeObject *)state->Attribute_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Attribute.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, vstate, o->v.Attribute.attr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->attr, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, vstate, o->v.Attribute.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Subscript_kind:
        tp = (PyTypeObject *)state->Subscript_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Subscript.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.Subscript.slice);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->slice, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, vstate, o->v.Subscript.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Starred_kind:
        tp = (PyTypeObject *)state->Starred_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Starred.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, vstate, o->v.Starred.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Name_kind:
        tp = (PyTypeObject *)state->Name_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.Name.id);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->id, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, vstate, o->v.Name.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case List_kind:
        tp = (PyTypeObject *)state->List_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.List.elts,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elts, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, vstate, o->v.List.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Tuple_kind:
        tp = (PyTypeObject *)state->Tuple_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.Tuple.elts,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->elts, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr_context(state, vstate, o->v.Tuple.ctx);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->ctx, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case Slice_kind:
        tp = (PyTypeObject *)state->Slice_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.Slice.lower);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->lower, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.Slice.upper);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->upper, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.Slice.step);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->step, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject* ast2obj_expr_context(struct ast_state *state, struct validator
                               *vstate, expr_context_ty o)
{
    switch(o) {
        case Load:
            return Py_NewRef(state->Load_singleton);
        case Store:
            return Py_NewRef(state->Store_singleton);
        case Del:
            return Py_NewRef(state->Del_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_boolop(struct ast_state *state, struct validator *vstate,
                         boolop_ty o)
{
    switch(o) {
        case And:
            return Py_NewRef(state->And_singleton);
        case Or:
            return Py_NewRef(state->Or_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_operator(struct ast_state *state, struct validator *vstate,
                           operator_ty o)
{
    switch(o) {
        case Add:
            return Py_NewRef(state->Add_singleton);
        case Sub:
            return Py_NewRef(state->Sub_singleton);
        case Mult:
            return Py_NewRef(state->Mult_singleton);
        case MatMult:
            return Py_NewRef(state->MatMult_singleton);
        case Div:
            return Py_NewRef(state->Div_singleton);
        case Mod:
            return Py_NewRef(state->Mod_singleton);
        case Pow:
            return Py_NewRef(state->Pow_singleton);
        case LShift:
            return Py_NewRef(state->LShift_singleton);
        case RShift:
            return Py_NewRef(state->RShift_singleton);
        case BitOr:
            return Py_NewRef(state->BitOr_singleton);
        case BitXor:
            return Py_NewRef(state->BitXor_singleton);
        case BitAnd:
            return Py_NewRef(state->BitAnd_singleton);
        case FloorDiv:
            return Py_NewRef(state->FloorDiv_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_unaryop(struct ast_state *state, struct validator *vstate,
                          unaryop_ty o)
{
    switch(o) {
        case Invert:
            return Py_NewRef(state->Invert_singleton);
        case Not:
            return Py_NewRef(state->Not_singleton);
        case UAdd:
            return Py_NewRef(state->UAdd_singleton);
        case USub:
            return Py_NewRef(state->USub_singleton);
    }
    Py_UNREACHABLE();
}
PyObject* ast2obj_cmpop(struct ast_state *state, struct validator *vstate,
                        cmpop_ty o)
{
    switch(o) {
        case Eq:
            return Py_NewRef(state->Eq_singleton);
        case NotEq:
            return Py_NewRef(state->NotEq_singleton);
        case Lt:
            return Py_NewRef(state->Lt_singleton);
        case LtE:
            return Py_NewRef(state->LtE_singleton);
        case Gt:
            return Py_NewRef(state->Gt_singleton);
        case GtE:
            return Py_NewRef(state->GtE_singleton);
        case Is:
            return Py_NewRef(state->Is_singleton);
        case IsNot:
            return Py_NewRef(state->IsNot_singleton);
        case In:
            return Py_NewRef(state->In_singleton);
        case NotIn:
            return Py_NewRef(state->NotIn_singleton);
    }
    Py_UNREACHABLE();
}
PyObject*
ast2obj_comprehension(struct ast_state *state, struct validator *vstate, void*
                      _o)
{
    comprehension_ty o = (comprehension_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    tp = (PyTypeObject *)state->comprehension_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_expr(state, vstate, o->target);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->target, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, vstate, o->iter);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->iter, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, vstate, (asdl_seq*)o->ifs, ast2obj_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->ifs, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->is_async);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->is_async, value) == -1)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_excepthandler(struct ast_state *state, struct validator *vstate, void*
                      _o)
{
    excepthandler_ty o = (excepthandler_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    switch (o->kind) {
    case ExceptHandler_kind:
        tp = (PyTypeObject *)state->ExceptHandler_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.ExceptHandler.type);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->type, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, vstate, o->v.ExceptHandler.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.ExceptHandler.body,
                             ast2obj_stmt);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->body, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_arguments(struct ast_state *state, struct validator *vstate, void* _o)
{
    arguments_ty o = (arguments_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    tp = (PyTypeObject *)state->arguments_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_list(state, vstate, (asdl_seq*)o->posonlyargs, ast2obj_arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->posonlyargs, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, vstate, (asdl_seq*)o->args, ast2obj_arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->args, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_arg(state, vstate, o->vararg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->vararg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, vstate, (asdl_seq*)o->kwonlyargs, ast2obj_arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->kwonlyargs, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, vstate, (asdl_seq*)o->kw_defaults,
                         ast2obj_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->kw_defaults, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_arg(state, vstate, o->kwarg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->kwarg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, vstate, (asdl_seq*)o->defaults, ast2obj_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->defaults, value) == -1)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_arg(struct ast_state *state, struct validator *vstate, void* _o)
{
    arg_ty o = (arg_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    tp = (PyTypeObject *)state->arg_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_identifier(state, vstate, o->arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->arg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, vstate, o->annotation);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->annotation, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_string(state, vstate, o->type_comment);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->type_comment, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_keyword(struct ast_state *state, struct validator *vstate, void* _o)
{
    keyword_ty o = (keyword_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    tp = (PyTypeObject *)state->keyword_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_identifier(state, vstate, o->arg);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->arg, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, vstate, o->value);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->value, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_alias(struct ast_state *state, struct validator *vstate, void* _o)
{
    alias_ty o = (alias_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    tp = (PyTypeObject *)state->alias_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_identifier(state, vstate, o->name);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->name, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_identifier(state, vstate, o->asname);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->asname, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_withitem(struct ast_state *state, struct validator *vstate, void* _o)
{
    withitem_ty o = (withitem_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    tp = (PyTypeObject *)state->withitem_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_expr(state, vstate, o->context_expr);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->context_expr, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, vstate, o->optional_vars);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->optional_vars, value) == -1)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_match_case(struct ast_state *state, struct validator *vstate, void* _o)
{
    match_case_ty o = (match_case_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    tp = (PyTypeObject *)state->match_case_type;
    result = PyType_GenericNew(tp, NULL, NULL);
    if (!result) return NULL;
    value = ast2obj_pattern(state, vstate, o->pattern);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->pattern, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_expr(state, vstate, o->guard);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->guard, value) == -1)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_list(state, vstate, (asdl_seq*)o->body, ast2obj_stmt);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->body, value) == -1)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_pattern(struct ast_state *state, struct validator *vstate, void* _o)
{
    pattern_ty o = (pattern_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    switch (o->kind) {
    case MatchValue_kind:
        tp = (PyTypeObject *)state->MatchValue_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.MatchValue.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchSingleton_kind:
        tp = (PyTypeObject *)state->MatchSingleton_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_constant(state, vstate, o->v.MatchSingleton.value);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->value, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchSequence_kind:
        tp = (PyTypeObject *)state->MatchSequence_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.MatchSequence.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchMapping_kind:
        tp = (PyTypeObject *)state->MatchMapping_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.MatchMapping.keys,
                             ast2obj_expr);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->keys, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.MatchMapping.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, vstate, o->v.MatchMapping.rest);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->rest, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchClass_kind:
        tp = (PyTypeObject *)state->MatchClass_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_expr(state, vstate, o->v.MatchClass.cls);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->cls, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.MatchClass.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.MatchClass.kwd_attrs,
                             ast2obj_identifier);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->kwd_attrs, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_list(state, vstate,
                             (asdl_seq*)o->v.MatchClass.kwd_patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->kwd_patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchStar_kind:
        tp = (PyTypeObject *)state->MatchStar_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.MatchStar.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchAs_kind:
        tp = (PyTypeObject *)state->MatchAs_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_pattern(state, vstate, o->v.MatchAs.pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->pattern, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(state, vstate, o->v.MatchAs.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case MatchOr_kind:
        tp = (PyTypeObject *)state->MatchOr_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_list(state, vstate, (asdl_seq*)o->v.MatchOr.patterns,
                             ast2obj_pattern);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->patterns, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_type_ignore(struct ast_state *state, struct validator *vstate, void* _o)
{
    type_ignore_ty o = (type_ignore_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    switch (o->kind) {
    case TypeIgnore_kind:
        tp = (PyTypeObject *)state->TypeIgnore_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_int(state, vstate, o->v.TypeIgnore.lineno);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->lineno, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_string(state, vstate, o->v.TypeIgnore.tag);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->tag, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}

PyObject*
ast2obj_type_param(struct ast_state *state, struct validator *vstate, void* _o)
{
    type_param_ty o = (type_param_ty)_o;
    PyObject *result = NULL, *value = NULL;
    PyTypeObject *tp;
    if (!o) {
        Py_RETURN_NONE;
    }
    if (++vstate->recursion_depth > vstate->recursion_limit) {
        PyErr_SetString(PyExc_RecursionError,
            "maximum recursion depth exceeded during ast construction");
        return 0;
    }
    switch (o->kind) {
    case TypeVar_kind:
        tp = (PyTypeObject *)state->TypeVar_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.TypeVar.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(state, vstate, o->v.TypeVar.bound);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->bound, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case ParamSpec_kind:
        tp = (PyTypeObject *)state->ParamSpec_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.ParamSpec.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    case TypeVarTuple_kind:
        tp = (PyTypeObject *)state->TypeVarTuple_type;
        result = PyType_GenericNew(tp, NULL, NULL);
        if (!result) goto failed;
        value = ast2obj_identifier(state, vstate, o->v.TypeVarTuple.name);
        if (!value) goto failed;
        if (PyObject_SetAttr(result, state->name, value) == -1)
            goto failed;
        Py_DECREF(value);
        break;
    }
    value = ast2obj_int(state, vstate, o->lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_lineno);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_lineno, value) < 0)
        goto failed;
    Py_DECREF(value);
    value = ast2obj_int(state, vstate, o->end_col_offset);
    if (!value) goto failed;
    if (PyObject_SetAttr(result, state->end_col_offset, value) < 0)
        goto failed;
    Py_DECREF(value);
    vstate->recursion_depth--;
    return result;
failed:
    vstate->recursion_depth--;
    Py_XDECREF(value);
    Py_XDECREF(result);
    return NULL;
}


int
obj2ast_mod(struct ast_state *state, PyObject* obj, mod_ty* out, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->Module_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;
        asdl_type_ignore_seq* type_ignores;

        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Module field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Module' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Module field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_ignores, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Module field \"type_ignores\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_ignores = _Py_asdl_type_ignore_seq_new(len, arena);
            if (type_ignores == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_ignore_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Module' node")) {
                    goto failed;
                }
                res = obj2ast_type_ignore(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Module field \"type_ignores\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_ignores, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Module(body, type_ignores, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Interactive_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;

        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Interactive field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Interactive' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Interactive field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Interactive(body, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Expression_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty body;

        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Expression");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Expression' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &body, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Expression(body, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->FunctionType_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* argtypes;
        expr_ty returns;

        if (_PyObject_LookupAttr(obj, state->argtypes, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionType field \"argtypes\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            argtypes = _Py_asdl_expr_seq_new(len, arena);
            if (argtypes == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionType' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionType field \"argtypes\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(argtypes, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->returns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"returns\" missing from FunctionType");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionType' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &returns, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_FunctionType(argtypes, returns, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of mod, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_stmt(struct ast_state *state, PyObject* obj, stmt_ty* out, PyArena*
             arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from stmt");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from stmt");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'stmt' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->FunctionDef_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier name;
        arguments_ty args;
        asdl_stmt_seq* body;
        asdl_expr_seq* decorator_list;
        expr_ty returns;
        string type_comment;
        asdl_type_param_seq* type_params;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from FunctionDef");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->args, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from FunctionDef");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_arguments(state, tmp, &args, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionDef field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionDef field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->decorator_list, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionDef field \"decorator_list\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            decorator_list = _Py_asdl_expr_seq_new(len, arena);
            if (decorator_list == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionDef field \"decorator_list\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(decorator_list, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->returns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            returns = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &returns, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_params, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "FunctionDef field \"type_params\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'FunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "FunctionDef field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_FunctionDef(name, args, body, decorator_list, returns,
                                  type_comment, type_params, lineno,
                                  col_offset, end_lineno, end_col_offset,
                                  arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AsyncFunctionDef_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier name;
        arguments_ty args;
        asdl_stmt_seq* body;
        asdl_expr_seq* decorator_list;
        expr_ty returns;
        string type_comment;
        asdl_type_param_seq* type_params;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from AsyncFunctionDef");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->args, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from AsyncFunctionDef");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_arguments(state, tmp, &args, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFunctionDef field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFunctionDef field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->decorator_list, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFunctionDef field \"decorator_list\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            decorator_list = _Py_asdl_expr_seq_new(len, arena);
            if (decorator_list == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFunctionDef field \"decorator_list\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(decorator_list, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->returns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            returns = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &returns, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_params, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFunctionDef field \"type_params\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFunctionDef' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFunctionDef field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AsyncFunctionDef(name, args, body, decorator_list,
                                       returns, type_comment, type_params,
                                       lineno, col_offset, end_lineno,
                                       end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ClassDef_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier name;
        asdl_expr_seq* bases;
        asdl_keyword_seq* keywords;
        asdl_stmt_seq* body;
        asdl_expr_seq* decorator_list;
        asdl_type_param_seq* type_params;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from ClassDef");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->bases, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"bases\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            bases = _Py_asdl_expr_seq_new(len, arena);
            if (bases == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"bases\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(bases, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->keywords, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"keywords\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keywords = _Py_asdl_keyword_seq_new(len, arena);
            if (keywords == NULL) goto failed;
            for (i = 0; i < len; i++) {
                keyword_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_keyword(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"keywords\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keywords, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->decorator_list, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"decorator_list\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            decorator_list = _Py_asdl_expr_seq_new(len, arena);
            if (decorator_list == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"decorator_list\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(decorator_list, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_params, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ClassDef field \"type_params\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ClassDef' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ClassDef field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ClassDef(name, bases, keywords, body, decorator_list,
                               type_params, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Return_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Return' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Return(value, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Delete_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* targets;

        if (_PyObject_LookupAttr(obj, state->targets, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Delete field \"targets\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            targets = _Py_asdl_expr_seq_new(len, arena);
            if (targets == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Delete' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Delete field \"targets\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(targets, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Delete(targets, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Assign_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* targets;
        expr_ty value;
        string type_comment;

        if (_PyObject_LookupAttr(obj, state->targets, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Assign field \"targets\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            targets = _Py_asdl_expr_seq_new(len, arena);
            if (targets == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Assign' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Assign field \"targets\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(targets, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Assign");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assign' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Assign(targets, value, type_comment, lineno, col_offset,
                             end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->TypeAlias_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty name;
        asdl_type_param_seq* type_params;
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from TypeAlias");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeAlias' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_params, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TypeAlias field \"type_params\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            type_params = _Py_asdl_type_param_seq_new(len, arena);
            if (type_params == NULL) goto failed;
            for (i = 0; i < len; i++) {
                type_param_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TypeAlias' node")) {
                    goto failed;
                }
                res = obj2ast_type_param(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TypeAlias field \"type_params\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(type_params, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from TypeAlias");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeAlias' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeAlias(name, type_params, value, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AugAssign_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty target;
        operator_ty op;
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->target, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from AugAssign");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AugAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->op, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from AugAssign");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AugAssign' node")) {
                goto failed;
            }
            res = obj2ast_operator(state, tmp, &op, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from AugAssign");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AugAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AugAssign(target, op, value, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AnnAssign_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty annotation;
        expr_ty value;
        int simple;

        if (_PyObject_LookupAttr(obj, state->target, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from AnnAssign");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->annotation, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"annotation\" missing from AnnAssign");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &annotation, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->simple, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"simple\" missing from AnnAssign");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AnnAssign' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &simple, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AnnAssign(target, annotation, value, simple, lineno,
                                col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->For_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty iter;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;
        string type_comment;

        if (_PyObject_LookupAttr(obj, state->target, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from For");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->iter, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from For");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &iter, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "For field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "For field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "For field \"orelse\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "For field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'For' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_For(target, iter, body, orelse, type_comment, lineno,
                          col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AsyncFor_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty iter;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;
        string type_comment;

        if (_PyObject_LookupAttr(obj, state->target, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from AsyncFor");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->iter, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from AsyncFor");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &iter, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFor field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFor field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncFor field \"orelse\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncFor field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncFor' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AsyncFor(target, iter, body, orelse, type_comment,
                               lineno, col_offset, end_lineno, end_col_offset,
                               arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->While_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty test;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;

        if (_PyObject_LookupAttr(obj, state->test, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from While");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'While' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "While field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'While' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "While field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "While field \"orelse\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'While' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "While field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_While(test, body, orelse, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->If_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty test;
        asdl_stmt_seq* body;
        asdl_stmt_seq* orelse;

        if (_PyObject_LookupAttr(obj, state->test, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from If");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'If' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "If field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'If' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "If field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "If field \"orelse\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'If' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "If field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_If(test, body, orelse, lineno, col_offset, end_lineno,
                         end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->With_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_withitem_seq* items;
        asdl_stmt_seq* body;
        string type_comment;

        if (_PyObject_LookupAttr(obj, state->items, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "With field \"items\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            items = _Py_asdl_withitem_seq_new(len, arena);
            if (items == NULL) goto failed;
            for (i = 0; i < len; i++) {
                withitem_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'With' node")) {
                    goto failed;
                }
                res = obj2ast_withitem(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "With field \"items\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(items, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "With field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'With' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "With field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'With' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_With(items, body, type_comment, lineno, col_offset,
                           end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->AsyncWith_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_withitem_seq* items;
        asdl_stmt_seq* body;
        string type_comment;

        if (_PyObject_LookupAttr(obj, state->items, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncWith field \"items\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            items = _Py_asdl_withitem_seq_new(len, arena);
            if (items == NULL) goto failed;
            for (i = 0; i < len; i++) {
                withitem_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncWith' node")) {
                    goto failed;
                }
                res = obj2ast_withitem(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncWith field \"items\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(items, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "AsyncWith field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'AsyncWith' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "AsyncWith field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type_comment = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'AsyncWith' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &type_comment, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_AsyncWith(items, body, type_comment, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Match_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty subject;
        asdl_match_case_seq* cases;

        if (_PyObject_LookupAttr(obj, state->subject, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"subject\" missing from Match");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Match' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &subject, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->cases, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Match field \"cases\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            cases = _Py_asdl_match_case_seq_new(len, arena);
            if (cases == NULL) goto failed;
            for (i = 0; i < len; i++) {
                match_case_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Match' node")) {
                    goto failed;
                }
                res = obj2ast_match_case(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Match field \"cases\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(cases, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Match(subject, cases, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Raise_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty exc;
        expr_ty cause;

        if (_PyObject_LookupAttr(obj, state->exc, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            exc = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Raise' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &exc, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->cause, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            cause = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Raise' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &cause, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Raise(exc, cause, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Try_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;
        asdl_excepthandler_seq* handlers;
        asdl_stmt_seq* orelse;
        asdl_stmt_seq* finalbody;

        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->handlers, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"handlers\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            handlers = _Py_asdl_excepthandler_seq_new(len, arena);
            if (handlers == NULL) goto failed;
            for (i = 0; i < len; i++) {
                excepthandler_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_excepthandler(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"handlers\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(handlers, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"orelse\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->finalbody, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Try field \"finalbody\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            finalbody = _Py_asdl_stmt_seq_new(len, arena);
            if (finalbody == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Try' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Try field \"finalbody\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(finalbody, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Try(body, handlers, orelse, finalbody, lineno,
                          col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->TryStar_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_stmt_seq* body;
        asdl_excepthandler_seq* handlers;
        asdl_stmt_seq* orelse;
        asdl_stmt_seq* finalbody;

        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->handlers, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"handlers\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            handlers = _Py_asdl_excepthandler_seq_new(len, arena);
            if (handlers == NULL) goto failed;
            for (i = 0; i < len; i++) {
                excepthandler_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_excepthandler(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"handlers\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(handlers, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"orelse\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            orelse = _Py_asdl_stmt_seq_new(len, arena);
            if (orelse == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"orelse\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(orelse, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->finalbody, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "TryStar field \"finalbody\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            finalbody = _Py_asdl_stmt_seq_new(len, arena);
            if (finalbody == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'TryStar' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "TryStar field \"finalbody\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(finalbody, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TryStar(body, handlers, orelse, finalbody, lineno,
                              col_offset, end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Assert_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty test;
        expr_ty msg;

        if (_PyObject_LookupAttr(obj, state->test, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from Assert");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assert' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->msg, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            msg = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Assert' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &msg, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Assert(test, msg, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Import_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_alias_seq* names;

        if (_PyObject_LookupAttr(obj, state->names, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Import field \"names\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_alias_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                alias_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Import' node")) {
                    goto failed;
                }
                res = obj2ast_alias(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Import field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Import(names, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ImportFrom_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier module;
        asdl_alias_seq* names;
        int level;

        if (_PyObject_LookupAttr(obj, state->module, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            module = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ImportFrom' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &module, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->names, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ImportFrom field \"names\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_alias_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                alias_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ImportFrom' node")) {
                    goto failed;
                }
                res = obj2ast_alias(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ImportFrom field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->level, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            level = 0;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ImportFrom' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &level, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ImportFrom(module, names, level, lineno, col_offset,
                                 end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Global_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_identifier_seq* names;

        if (_PyObject_LookupAttr(obj, state->names, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Global field \"names\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_identifier_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                identifier val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Global' node")) {
                    goto failed;
                }
                res = obj2ast_identifier(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Global field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Global(names, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Nonlocal_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_identifier_seq* names;

        if (_PyObject_LookupAttr(obj, state->names, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Nonlocal field \"names\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            names = _Py_asdl_identifier_seq_new(len, arena);
            if (names == NULL) goto failed;
            for (i = 0; i < len; i++) {
                identifier val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Nonlocal' node")) {
                    goto failed;
                }
                res = obj2ast_identifier(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Nonlocal field \"names\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(names, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Nonlocal(names, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Expr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Expr");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Expr' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Expr(value, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Pass_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {

        *out = _PyAST_Pass(lineno, col_offset, end_lineno, end_col_offset,
                           arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Break_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {

        *out = _PyAST_Break(lineno, col_offset, end_lineno, end_col_offset,
                            arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Continue_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {

        *out = _PyAST_Continue(lineno, col_offset, end_lineno, end_col_offset,
                               arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of stmt, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_expr(struct ast_state *state, PyObject* obj, expr_ty* out, PyArena*
             arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from expr");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from expr");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'expr' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->BoolOp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        boolop_ty op;
        asdl_expr_seq* values;

        if (_PyObject_LookupAttr(obj, state->op, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from BoolOp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BoolOp' node")) {
                goto failed;
            }
            res = obj2ast_boolop(state, tmp, &op, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->values, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "BoolOp field \"values\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            values = _Py_asdl_expr_seq_new(len, arena);
            if (values == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'BoolOp' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "BoolOp field \"values\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(values, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_BoolOp(op, values, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->NamedExpr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty target;
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->target, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from NamedExpr");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'NamedExpr' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &target, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from NamedExpr");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'NamedExpr' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_NamedExpr(target, value, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->BinOp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty left;
        operator_ty op;
        expr_ty right;

        if (_PyObject_LookupAttr(obj, state->left, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"left\" missing from BinOp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BinOp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &left, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->op, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from BinOp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BinOp' node")) {
                goto failed;
            }
            res = obj2ast_operator(state, tmp, &op, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->right, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"right\" missing from BinOp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'BinOp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &right, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_BinOp(left, op, right, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->UnaryOp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        unaryop_ty op;
        expr_ty operand;

        if (_PyObject_LookupAttr(obj, state->op, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from UnaryOp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'UnaryOp' node")) {
                goto failed;
            }
            res = obj2ast_unaryop(state, tmp, &op, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->operand, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"operand\" missing from UnaryOp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'UnaryOp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &operand, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_UnaryOp(op, operand, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Lambda_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        arguments_ty args;
        expr_ty body;

        if (_PyObject_LookupAttr(obj, state->args, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from Lambda");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Lambda' node")) {
                goto failed;
            }
            res = obj2ast_arguments(state, tmp, &args, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Lambda");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Lambda' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &body, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Lambda(args, body, lineno, col_offset, end_lineno,
                             end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->IfExp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty test;
        expr_ty body;
        expr_ty orelse;

        if (_PyObject_LookupAttr(obj, state->test, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from IfExp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'IfExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &test, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from IfExp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'IfExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &body, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->orelse, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from IfExp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'IfExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &orelse, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_IfExp(test, body, orelse, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Dict_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* keys;
        asdl_expr_seq* values;

        if (_PyObject_LookupAttr(obj, state->keys, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Dict field \"keys\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keys = _Py_asdl_expr_seq_new(len, arena);
            if (keys == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Dict' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Dict field \"keys\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keys, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->values, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Dict field \"values\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            values = _Py_asdl_expr_seq_new(len, arena);
            if (values == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Dict' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Dict field \"values\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(values, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Dict(keys, values, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Set_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* elts;

        if (_PyObject_LookupAttr(obj, state->elts, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Set field \"elts\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            elts = _Py_asdl_expr_seq_new(len, arena);
            if (elts == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Set' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Set field \"elts\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(elts, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Set(elts, lineno, col_offset, end_lineno, end_col_offset,
                          arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ListComp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty elt;
        asdl_comprehension_seq* generators;

        if (_PyObject_LookupAttr(obj, state->elt, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from ListComp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ListComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &elt, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->generators, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ListComp field \"generators\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ListComp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ListComp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ListComp(elt, generators, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->SetComp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty elt;
        asdl_comprehension_seq* generators;

        if (_PyObject_LookupAttr(obj, state->elt, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from SetComp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'SetComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &elt, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->generators, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "SetComp field \"generators\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'SetComp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "SetComp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_SetComp(elt, generators, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->DictComp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty key;
        expr_ty value;
        asdl_comprehension_seq* generators;

        if (_PyObject_LookupAttr(obj, state->key, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"key\" missing from DictComp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'DictComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &key, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from DictComp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'DictComp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->generators, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "DictComp field \"generators\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'DictComp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "DictComp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_DictComp(key, value, generators, lineno, col_offset,
                               end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->GeneratorExp_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty elt;
        asdl_comprehension_seq* generators;

        if (_PyObject_LookupAttr(obj, state->elt, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from GeneratorExp");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'GeneratorExp' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &elt, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->generators, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "GeneratorExp field \"generators\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            generators = _Py_asdl_comprehension_seq_new(len, arena);
            if (generators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                comprehension_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'GeneratorExp' node")) {
                    goto failed;
                }
                res = obj2ast_comprehension(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "GeneratorExp field \"generators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(generators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_GeneratorExp(elt, generators, lineno, col_offset,
                                   end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Await_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Await");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Await' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Await(value, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Yield_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            value = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Yield' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Yield(value, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->YieldFrom_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from YieldFrom");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'YieldFrom' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_YieldFrom(value, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Compare_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty left;
        asdl_int_seq* ops;
        asdl_expr_seq* comparators;

        if (_PyObject_LookupAttr(obj, state->left, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"left\" missing from Compare");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Compare' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &left, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->ops, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Compare field \"ops\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            ops = _Py_asdl_int_seq_new(len, arena);
            if (ops == NULL) goto failed;
            for (i = 0; i < len; i++) {
                cmpop_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Compare' node")) {
                    goto failed;
                }
                res = obj2ast_cmpop(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Compare field \"ops\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(ops, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->comparators, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Compare field \"comparators\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            comparators = _Py_asdl_expr_seq_new(len, arena);
            if (comparators == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Compare' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Compare field \"comparators\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(comparators, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Compare(left, ops, comparators, lineno, col_offset,
                              end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Call_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty func;
        asdl_expr_seq* args;
        asdl_keyword_seq* keywords;

        if (_PyObject_LookupAttr(obj, state->func, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"func\" missing from Call");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Call' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &func, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->args, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Call field \"args\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            args = _Py_asdl_expr_seq_new(len, arena);
            if (args == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Call' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Call field \"args\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(args, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->keywords, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Call field \"keywords\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keywords = _Py_asdl_keyword_seq_new(len, arena);
            if (keywords == NULL) goto failed;
            for (i = 0; i < len; i++) {
                keyword_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Call' node")) {
                    goto failed;
                }
                res = obj2ast_keyword(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Call field \"keywords\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keywords, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Call(func, args, keywords, lineno, col_offset,
                           end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->FormattedValue_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;
        int conversion;
        expr_ty format_spec;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from FormattedValue");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FormattedValue' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->conversion, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"conversion\" missing from FormattedValue");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FormattedValue' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &conversion, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->format_spec, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            format_spec = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'FormattedValue' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &format_spec, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_FormattedValue(value, conversion, format_spec, lineno,
                                     col_offset, end_lineno, end_col_offset,
                                     arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->JoinedStr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* values;

        if (_PyObject_LookupAttr(obj, state->values, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "JoinedStr field \"values\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            values = _Py_asdl_expr_seq_new(len, arena);
            if (values == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'JoinedStr' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "JoinedStr field \"values\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(values, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_JoinedStr(values, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Constant_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        constant value;
        string kind;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Constant");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Constant' node")) {
                goto failed;
            }
            res = obj2ast_constant(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->kind, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            kind = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Constant' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &kind, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Constant(value, kind, lineno, col_offset, end_lineno,
                               end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Attribute_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;
        identifier attr;
        expr_context_ty ctx;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Attribute");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Attribute' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->attr, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"attr\" missing from Attribute");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Attribute' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &attr, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->ctx, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Attribute");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Attribute' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Attribute(value, attr, ctx, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Subscript_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;
        expr_ty slice;
        expr_context_ty ctx;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Subscript");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Subscript' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->slice, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"slice\" missing from Subscript");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Subscript' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &slice, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->ctx, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Subscript");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Subscript' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Subscript(value, slice, ctx, lineno, col_offset,
                                end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Starred_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;
        expr_context_ty ctx;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Starred");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Starred' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->ctx, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Starred");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Starred' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Starred(value, ctx, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Name_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier id;
        expr_context_ty ctx;

        if (_PyObject_LookupAttr(obj, state->id, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"id\" missing from Name");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Name' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &id, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->ctx, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Name");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Name' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Name(id, ctx, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->List_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* elts;
        expr_context_ty ctx;

        if (_PyObject_LookupAttr(obj, state->elts, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "List field \"elts\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            elts = _Py_asdl_expr_seq_new(len, arena);
            if (elts == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'List' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "List field \"elts\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(elts, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->ctx, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from List");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'List' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_List(elts, ctx, lineno, col_offset, end_lineno,
                           end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Tuple_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* elts;
        expr_context_ty ctx;

        if (_PyObject_LookupAttr(obj, state->elts, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "Tuple field \"elts\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            elts = _Py_asdl_expr_seq_new(len, arena);
            if (elts == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'Tuple' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "Tuple field \"elts\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(elts, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->ctx, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Tuple");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Tuple' node")) {
                goto failed;
            }
            res = obj2ast_expr_context(state, tmp, &ctx, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Tuple(elts, ctx, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->Slice_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty lower;
        expr_ty upper;
        expr_ty step;

        if (_PyObject_LookupAttr(obj, state->lower, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            lower = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Slice' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &lower, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->upper, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            upper = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Slice' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &upper, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->step, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            step = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'Slice' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &step, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_Slice(lower, upper, step, lineno, col_offset, end_lineno,
                            end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of expr, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_expr_context(struct ast_state *state, PyObject* obj, expr_context_ty*
                     out, PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Load_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Load;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Store_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Store;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Del_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Del;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of expr_context, but got %R", obj);
    return 1;
}

int
obj2ast_boolop(struct ast_state *state, PyObject* obj, boolop_ty* out, PyArena*
               arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->And_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = And;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Or_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Or;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of boolop, but got %R", obj);
    return 1;
}

int
obj2ast_operator(struct ast_state *state, PyObject* obj, operator_ty* out,
                 PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Add_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Add;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Sub_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Sub;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Mult_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Mult;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->MatMult_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = MatMult;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Div_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Div;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Mod_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Mod;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Pow_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Pow;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->LShift_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = LShift;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->RShift_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = RShift;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->BitOr_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = BitOr;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->BitXor_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = BitXor;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->BitAnd_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = BitAnd;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->FloorDiv_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = FloorDiv;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of operator, but got %R", obj);
    return 1;
}

int
obj2ast_unaryop(struct ast_state *state, PyObject* obj, unaryop_ty* out,
                PyArena* arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Invert_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Invert;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Not_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Not;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->UAdd_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = UAdd;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->USub_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = USub;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of unaryop, but got %R", obj);
    return 1;
}

int
obj2ast_cmpop(struct ast_state *state, PyObject* obj, cmpop_ty* out, PyArena*
              arena)
{
    int isinstance;

    isinstance = PyObject_IsInstance(obj, state->Eq_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Eq;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->NotEq_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = NotEq;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Lt_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Lt;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->LtE_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = LtE;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Gt_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Gt;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->GtE_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = GtE;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->Is_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = Is;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->IsNot_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = IsNot;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->In_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = In;
        return 0;
    }
    isinstance = PyObject_IsInstance(obj, state->NotIn_type);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        *out = NotIn;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of cmpop, but got %R", obj);
    return 1;
}

int
obj2ast_comprehension(struct ast_state *state, PyObject* obj, comprehension_ty*
                      out, PyArena* arena)
{
    PyObject* tmp = NULL;
    expr_ty target;
    expr_ty iter;
    asdl_expr_seq* ifs;
    int is_async;

    if (_PyObject_LookupAttr(obj, state->target, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from comprehension");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &target, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->iter, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from comprehension");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &iter, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->ifs, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return 1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "comprehension field \"ifs\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        ifs = _Py_asdl_expr_seq_new(len, arena);
        if (ifs == NULL) goto failed;
        for (i = 0; i < len; i++) {
            expr_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp2, &val, arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "comprehension field \"ifs\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(ifs, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->is_async, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"is_async\" missing from comprehension");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'comprehension' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &is_async, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_comprehension(target, iter, ifs, is_async, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_excepthandler(struct ast_state *state, PyObject* obj, excepthandler_ty*
                      out, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from excepthandler");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from excepthandler");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'excepthandler' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->ExceptHandler_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty type;
        identifier name;
        asdl_stmt_seq* body;

        if (_PyObject_LookupAttr(obj, state->type, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            type = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ExceptHandler' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &type, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            name = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ExceptHandler' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "ExceptHandler field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            body = _Py_asdl_stmt_seq_new(len, arena);
            if (body == NULL) goto failed;
            for (i = 0; i < len; i++) {
                stmt_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'ExceptHandler' node")) {
                    goto failed;
                }
                res = obj2ast_stmt(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "ExceptHandler field \"body\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(body, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ExceptHandler(type, name, body, lineno, col_offset,
                                    end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of excepthandler, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_arguments(struct ast_state *state, PyObject* obj, arguments_ty* out,
                  PyArena* arena)
{
    PyObject* tmp = NULL;
    asdl_arg_seq* posonlyargs;
    asdl_arg_seq* args;
    arg_ty vararg;
    asdl_arg_seq* kwonlyargs;
    asdl_expr_seq* kw_defaults;
    arg_ty kwarg;
    asdl_expr_seq* defaults;

    if (_PyObject_LookupAttr(obj, state->posonlyargs, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return 1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"posonlyargs\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        posonlyargs = _Py_asdl_arg_seq_new(len, arena);
        if (posonlyargs == NULL) goto failed;
        for (i = 0; i < len; i++) {
            arg_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_arg(state, tmp2, &val, arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"posonlyargs\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(posonlyargs, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->args, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return 1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"args\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        args = _Py_asdl_arg_seq_new(len, arena);
        if (args == NULL) goto failed;
        for (i = 0; i < len; i++) {
            arg_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_arg(state, tmp2, &val, arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"args\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(args, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->vararg, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        vararg = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
            goto failed;
        }
        res = obj2ast_arg(state, tmp, &vararg, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->kwonlyargs, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return 1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"kwonlyargs\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        kwonlyargs = _Py_asdl_arg_seq_new(len, arena);
        if (kwonlyargs == NULL) goto failed;
        for (i = 0; i < len; i++) {
            arg_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_arg(state, tmp2, &val, arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"kwonlyargs\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(kwonlyargs, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->kw_defaults, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return 1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"kw_defaults\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        kw_defaults = _Py_asdl_expr_seq_new(len, arena);
        if (kw_defaults == NULL) goto failed;
        for (i = 0; i < len; i++) {
            expr_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp2, &val, arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"kw_defaults\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(kw_defaults, i, val);
        }
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->kwarg, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        kwarg = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
            goto failed;
        }
        res = obj2ast_arg(state, tmp, &kwarg, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->defaults, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return 1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "arguments field \"defaults\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        defaults = _Py_asdl_expr_seq_new(len, arena);
        if (defaults == NULL) goto failed;
        for (i = 0; i < len; i++) {
            expr_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'arguments' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp2, &val, arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "arguments field \"defaults\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(defaults, i, val);
        }
        Py_CLEAR(tmp);
    }
    *out = _PyAST_arguments(posonlyargs, args, vararg, kwonlyargs, kw_defaults,
                            kwarg, defaults, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_arg(struct ast_state *state, PyObject* obj, arg_ty* out, PyArena* arena)
{
    PyObject* tmp = NULL;
    identifier arg;
    expr_ty annotation;
    string type_comment;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (_PyObject_LookupAttr(obj, state->arg, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"arg\" missing from arg");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &arg, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->annotation, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        annotation = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &annotation, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->type_comment, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        type_comment = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_string(state, tmp, &type_comment, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from arg");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from arg");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'arg' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_arg(arg, annotation, type_comment, lineno, col_offset,
                      end_lineno, end_col_offset, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_keyword(struct ast_state *state, PyObject* obj, keyword_ty* out,
                PyArena* arena)
{
    PyObject* tmp = NULL;
    identifier arg;
    expr_ty value;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (_PyObject_LookupAttr(obj, state->arg, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        arg = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &arg, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from keyword");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &value, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from keyword");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from keyword");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'keyword' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_keyword(arg, value, lineno, col_offset, end_lineno,
                          end_col_offset, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_alias(struct ast_state *state, PyObject* obj, alias_ty* out, PyArena*
              arena)
{
    PyObject* tmp = NULL;
    identifier name;
    identifier asname;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from alias");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &name, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->asname, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        asname = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_identifier(state, tmp, &asname, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from alias");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from alias");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_lineno = lineno;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        end_col_offset = col_offset;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'alias' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_alias(name, asname, lineno, col_offset, end_lineno,
                        end_col_offset, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_withitem(struct ast_state *state, PyObject* obj, withitem_ty* out,
                 PyArena* arena)
{
    PyObject* tmp = NULL;
    expr_ty context_expr;
    expr_ty optional_vars;

    if (_PyObject_LookupAttr(obj, state->context_expr, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"context_expr\" missing from withitem");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'withitem' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &context_expr, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->optional_vars, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        optional_vars = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'withitem' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &optional_vars, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    *out = _PyAST_withitem(context_expr, optional_vars, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_match_case(struct ast_state *state, PyObject* obj, match_case_ty* out,
                   PyArena* arena)
{
    PyObject* tmp = NULL;
    pattern_ty pattern;
    expr_ty guard;
    asdl_stmt_seq* body;

    if (_PyObject_LookupAttr(obj, state->pattern, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"pattern\" missing from match_case");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'match_case' node")) {
            goto failed;
        }
        res = obj2ast_pattern(state, tmp, &pattern, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->guard, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL || tmp == Py_None) {
        Py_CLEAR(tmp);
        guard = NULL;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'match_case' node")) {
            goto failed;
        }
        res = obj2ast_expr(state, tmp, &guard, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->body, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        tmp = PyList_New(0);
        if (tmp == NULL) {
            return 1;
        }
    }
    {
        int res;
        Py_ssize_t len;
        Py_ssize_t i;
        if (!PyList_Check(tmp)) {
            PyErr_Format(PyExc_TypeError, "match_case field \"body\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
            goto failed;
        }
        len = PyList_GET_SIZE(tmp);
        body = _Py_asdl_stmt_seq_new(len, arena);
        if (body == NULL) goto failed;
        for (i = 0; i < len; i++) {
            stmt_ty val;
            PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
            if (_Py_EnterRecursiveCall(" while traversing 'match_case' node")) {
                goto failed;
            }
            res = obj2ast_stmt(state, tmp2, &val, arena);
            _Py_LeaveRecursiveCall();
            Py_DECREF(tmp2);
            if (res != 0) goto failed;
            if (len != PyList_GET_SIZE(tmp)) {
                PyErr_SetString(PyExc_RuntimeError, "match_case field \"body\" changed size during iteration");
                goto failed;
            }
            asdl_seq_SET(body, i, val);
        }
        Py_CLEAR(tmp);
    }
    *out = _PyAST_match_case(pattern, guard, body, arena);
    if (*out == NULL) goto failed;
    return 0;
failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_pattern(struct ast_state *state, PyObject* obj, pattern_ty* out,
                PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from pattern");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from pattern");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_lineno\" missing from pattern");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_col_offset\" missing from pattern");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'pattern' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->MatchValue_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty value;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from MatchValue");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchValue' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchValue(value, lineno, col_offset, end_lineno,
                                 end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchSingleton_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        constant value;

        if (_PyObject_LookupAttr(obj, state->value, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from MatchSingleton");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchSingleton' node")) {
                goto failed;
            }
            res = obj2ast_constant(state, tmp, &value, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchSingleton(value, lineno, col_offset, end_lineno,
                                     end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchSequence_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_pattern_seq* patterns;

        if (_PyObject_LookupAttr(obj, state->patterns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchSequence field \"patterns\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchSequence' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchSequence field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchSequence(patterns, lineno, col_offset, end_lineno,
                                    end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchMapping_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_expr_seq* keys;
        asdl_pattern_seq* patterns;
        identifier rest;

        if (_PyObject_LookupAttr(obj, state->keys, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchMapping field \"keys\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            keys = _Py_asdl_expr_seq_new(len, arena);
            if (keys == NULL) goto failed;
            for (i = 0; i < len; i++) {
                expr_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchMapping' node")) {
                    goto failed;
                }
                res = obj2ast_expr(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchMapping field \"keys\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(keys, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->patterns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchMapping field \"patterns\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchMapping' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchMapping field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->rest, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            rest = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchMapping' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &rest, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchMapping(keys, patterns, rest, lineno, col_offset,
                                   end_lineno, end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchClass_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        expr_ty cls;
        asdl_pattern_seq* patterns;
        asdl_identifier_seq* kwd_attrs;
        asdl_pattern_seq* kwd_patterns;

        if (_PyObject_LookupAttr(obj, state->cls, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"cls\" missing from MatchClass");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &cls, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->patterns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchClass field \"patterns\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchClass field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->kwd_attrs, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchClass field \"kwd_attrs\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            kwd_attrs = _Py_asdl_identifier_seq_new(len, arena);
            if (kwd_attrs == NULL) goto failed;
            for (i = 0; i < len; i++) {
                identifier val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                    goto failed;
                }
                res = obj2ast_identifier(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchClass field \"kwd_attrs\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(kwd_attrs, i, val);
            }
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->kwd_patterns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchClass field \"kwd_patterns\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            kwd_patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (kwd_patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchClass' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchClass field \"kwd_patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(kwd_patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchClass(cls, patterns, kwd_attrs, kwd_patterns,
                                 lineno, col_offset, end_lineno,
                                 end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchStar_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier name;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            name = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchStar' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchStar(name, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchAs_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        pattern_ty pattern;
        identifier name;

        if (_PyObject_LookupAttr(obj, state->pattern, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            pattern = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchAs' node")) {
                goto failed;
            }
            res = obj2ast_pattern(state, tmp, &pattern, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            name = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'MatchAs' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchAs(pattern, name, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->MatchOr_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        asdl_pattern_seq* patterns;

        if (_PyObject_LookupAttr(obj, state->patterns, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            tmp = PyList_New(0);
            if (tmp == NULL) {
                return 1;
            }
        }
        {
            int res;
            Py_ssize_t len;
            Py_ssize_t i;
            if (!PyList_Check(tmp)) {
                PyErr_Format(PyExc_TypeError, "MatchOr field \"patterns\" must be a list, not a %.200s", _PyType_Name(Py_TYPE(tmp)));
                goto failed;
            }
            len = PyList_GET_SIZE(tmp);
            patterns = _Py_asdl_pattern_seq_new(len, arena);
            if (patterns == NULL) goto failed;
            for (i = 0; i < len; i++) {
                pattern_ty val;
                PyObject *tmp2 = Py_NewRef(PyList_GET_ITEM(tmp, i));
                if (_Py_EnterRecursiveCall(" while traversing 'MatchOr' node")) {
                    goto failed;
                }
                res = obj2ast_pattern(state, tmp2, &val, arena);
                _Py_LeaveRecursiveCall();
                Py_DECREF(tmp2);
                if (res != 0) goto failed;
                if (len != PyList_GET_SIZE(tmp)) {
                    PyErr_SetString(PyExc_RuntimeError, "MatchOr field \"patterns\" changed size during iteration");
                    goto failed;
                }
                asdl_seq_SET(patterns, i, val);
            }
            Py_CLEAR(tmp);
        }
        *out = _PyAST_MatchOr(patterns, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of pattern, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_type_ignore(struct ast_state *state, PyObject* obj, type_ignore_ty*
                    out, PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    tp = state->TypeIgnore_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        int lineno;
        string tag;

        if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from TypeIgnore");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeIgnore' node")) {
                goto failed;
            }
            res = obj2ast_int(state, tmp, &lineno, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->tag, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"tag\" missing from TypeIgnore");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeIgnore' node")) {
                goto failed;
            }
            res = obj2ast_string(state, tmp, &tag, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeIgnore(lineno, tag, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of type_ignore, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return 1;
}

int
obj2ast_type_param(struct ast_state *state, PyObject* obj, type_param_ty* out,
                   PyArena* arena)
{
    int isinstance;

    PyObject *tmp = NULL;
    PyObject *tp;
    int lineno;
    int col_offset;
    int end_lineno;
    int end_col_offset;

    if (obj == Py_None) {
        *out = NULL;
        return 0;
    }
    if (_PyObject_LookupAttr(obj, state->lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from type_param");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from type_param");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_lineno, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_lineno\" missing from type_param");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_lineno, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    if (_PyObject_LookupAttr(obj, state->end_col_offset, &tmp) < 0) {
        return 1;
    }
    if (tmp == NULL) {
        PyErr_SetString(PyExc_TypeError, "required field \"end_col_offset\" missing from type_param");
        return 1;
    }
    else {
        int res;
        if (_Py_EnterRecursiveCall(" while traversing 'type_param' node")) {
            goto failed;
        }
        res = obj2ast_int(state, tmp, &end_col_offset, arena);
        _Py_LeaveRecursiveCall();
        if (res != 0) goto failed;
        Py_CLEAR(tmp);
    }
    tp = state->TypeVar_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier name;
        expr_ty bound;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from TypeVar");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVar' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        if (_PyObject_LookupAttr(obj, state->bound, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL || tmp == Py_None) {
            Py_CLEAR(tmp);
            bound = NULL;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVar' node")) {
                goto failed;
            }
            res = obj2ast_expr(state, tmp, &bound, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeVar(name, bound, lineno, col_offset, end_lineno,
                              end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->ParamSpec_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier name;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from ParamSpec");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'ParamSpec' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_ParamSpec(name, lineno, col_offset, end_lineno,
                                end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }
    tp = state->TypeVarTuple_type;
    isinstance = PyObject_IsInstance(obj, tp);
    if (isinstance == -1) {
        return 1;
    }
    if (isinstance) {
        identifier name;

        if (_PyObject_LookupAttr(obj, state->name, &tmp) < 0) {
            return 1;
        }
        if (tmp == NULL) {
            PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from TypeVarTuple");
            return 1;
        }
        else {
            int res;
            if (_Py_EnterRecursiveCall(" while traversing 'TypeVarTuple' node")) {
                goto failed;
            }
            res = obj2ast_identifier(state, tmp, &name, arena);
            _Py_LeaveRecursiveCall();
            if (res != 0) goto failed;
            Py_CLEAR(tmp);
        }
        *out = _PyAST_TypeVarTuple(name, lineno, col_offset, end_lineno,
                                   end_col_offset, arena);
        if (*out == NULL) goto failed;
        return 0;
    }

    PyErr_Format(PyExc_TypeError, "expected some sort of type_param, but got %R", obj);
    failed:
    Py_XDECREF(tmp);
    return 1;
}


static int
astmodule_exec(PyObject *m)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AST", state->AST_type) < 0) {
        return -1;
    }
    if (PyModule_AddIntMacro(m, PyCF_ALLOW_TOP_LEVEL_AWAIT) < 0) {
        return -1;
    }
    if (PyModule_AddIntMacro(m, PyCF_ONLY_AST) < 0) {
        return -1;
    }
    if (PyModule_AddIntMacro(m, PyCF_TYPE_COMMENTS) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "mod", state->mod_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Module", state->Module_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Interactive", state->Interactive_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Expression", state->Expression_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FunctionType", state->FunctionType_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "stmt", state->stmt_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FunctionDef", state->FunctionDef_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AsyncFunctionDef",
        state->AsyncFunctionDef_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ClassDef", state->ClassDef_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Return", state->Return_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Delete", state->Delete_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Assign", state->Assign_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeAlias", state->TypeAlias_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AugAssign", state->AugAssign_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AnnAssign", state->AnnAssign_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "For", state->For_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AsyncFor", state->AsyncFor_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "While", state->While_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "If", state->If_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "With", state->With_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "AsyncWith", state->AsyncWith_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Match", state->Match_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Raise", state->Raise_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Try", state->Try_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TryStar", state->TryStar_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Assert", state->Assert_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Import", state->Import_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ImportFrom", state->ImportFrom_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Global", state->Global_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Nonlocal", state->Nonlocal_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Expr", state->Expr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Pass", state->Pass_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Break", state->Break_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Continue", state->Continue_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "expr", state->expr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BoolOp", state->BoolOp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "NamedExpr", state->NamedExpr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BinOp", state->BinOp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "UnaryOp", state->UnaryOp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Lambda", state->Lambda_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "IfExp", state->IfExp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Dict", state->Dict_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Set", state->Set_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ListComp", state->ListComp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "SetComp", state->SetComp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "DictComp", state->DictComp_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "GeneratorExp", state->GeneratorExp_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Await", state->Await_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Yield", state->Yield_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "YieldFrom", state->YieldFrom_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Compare", state->Compare_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Call", state->Call_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FormattedValue", state->FormattedValue_type)
        < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "JoinedStr", state->JoinedStr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Constant", state->Constant_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Attribute", state->Attribute_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Subscript", state->Subscript_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Starred", state->Starred_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Name", state->Name_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "List", state->List_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Tuple", state->Tuple_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Slice", state->Slice_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "expr_context", state->expr_context_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Load", state->Load_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Store", state->Store_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Del", state->Del_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "boolop", state->boolop_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "And", state->And_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Or", state->Or_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "operator", state->operator_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Add", state->Add_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Sub", state->Sub_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Mult", state->Mult_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatMult", state->MatMult_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Div", state->Div_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Mod", state->Mod_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Pow", state->Pow_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "LShift", state->LShift_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "RShift", state->RShift_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BitOr", state->BitOr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BitXor", state->BitXor_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "BitAnd", state->BitAnd_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "FloorDiv", state->FloorDiv_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "unaryop", state->unaryop_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Invert", state->Invert_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Not", state->Not_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "UAdd", state->UAdd_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "USub", state->USub_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "cmpop", state->cmpop_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Eq", state->Eq_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "NotEq", state->NotEq_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Lt", state->Lt_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "LtE", state->LtE_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Gt", state->Gt_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "GtE", state->GtE_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "Is", state->Is_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "IsNot", state->IsNot_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "In", state->In_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "NotIn", state->NotIn_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "comprehension", state->comprehension_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "excepthandler", state->excepthandler_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ExceptHandler", state->ExceptHandler_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "arguments", state->arguments_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "arg", state->arg_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "keyword", state->keyword_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "alias", state->alias_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "withitem", state->withitem_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "match_case", state->match_case_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "pattern", state->pattern_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchValue", state->MatchValue_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchSingleton", state->MatchSingleton_type)
        < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchSequence", state->MatchSequence_type) <
        0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchMapping", state->MatchMapping_type) < 0)
        {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchClass", state->MatchClass_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchStar", state->MatchStar_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchAs", state->MatchAs_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "MatchOr", state->MatchOr_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "type_ignore", state->type_ignore_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeIgnore", state->TypeIgnore_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "type_param", state->type_param_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeVar", state->TypeVar_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "ParamSpec", state->ParamSpec_type) < 0) {
        return -1;
    }
    if (PyModule_AddObjectRef(m, "TypeVarTuple", state->TypeVarTuple_type) < 0)
        {
        return -1;
    }
    return 0;
}

static PyModuleDef_Slot astmodule_slots[] = {
    {Py_mod_exec, astmodule_exec},
    {Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
    {0, NULL}
};

static struct PyModuleDef _astmodule = {
    PyModuleDef_HEAD_INIT,
    .m_name = "_ast",
    // The _ast module uses a per-interpreter state (PyInterpreterState.ast)
    .m_size = 0,
    .m_slots = astmodule_slots,
};

PyMODINIT_FUNC
PyInit__ast(void)
{
    return PyModuleDef_Init(&_astmodule);
}


PyObject* PyAST_mod2obj(mod_ty t)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    int starting_recursion_depth;
    /* Be careful here to prevent overflow. */
    PyThreadState *tstate = _PyThreadState_GET();
    if (!tstate) {
        return NULL;
    }
    struct validator vstate;
    vstate.recursion_limit = C_RECURSION_LIMIT;
    int recursion_depth = C_RECURSION_LIMIT - tstate->c_recursion_remaining;
    starting_recursion_depth = recursion_depth;
    vstate.recursion_depth = starting_recursion_depth;

    PyObject *result = ast2obj_mod(state, &vstate, t);

    /* Check that the recursion depth counting balanced correctly */
    if (result && vstate.recursion_depth != starting_recursion_depth) {
        PyErr_Format(PyExc_SystemError,
            "AST constructor recursion depth mismatch (before=%d, after=%d)",
            starting_recursion_depth, vstate.recursion_depth);
        return NULL;
    }
    return result;
}

/* mode is 0 for "exec", 1 for "eval" and 2 for "single" input */
mod_ty PyAST_obj2mod(PyObject* ast, PyArena* arena, int mode)
{
    const char * const req_name[] = {"Module", "Expression", "Interactive"};
    int isinstance;

    if (PySys_Audit("compile", "OO", ast, Py_None) < 0) {
        return NULL;
    }

    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return NULL;
    }

    PyObject *req_type[3];
    req_type[0] = state->Module_type;
    req_type[1] = state->Expression_type;
    req_type[2] = state->Interactive_type;

    assert(0 <= mode && mode <= 2);

    isinstance = PyObject_IsInstance(ast, req_type[mode]);
    if (isinstance == -1)
        return NULL;
    if (!isinstance) {
        PyErr_Format(PyExc_TypeError, "expected %s node, got %.400s",
                     req_name[mode], _PyType_Name(Py_TYPE(ast)));
        return NULL;
    }

    mod_ty res = NULL;
    if (obj2ast_mod(state, ast, &res, arena) != 0)
        return NULL;
    else
        return res;
}

int PyAST_Check(PyObject* obj)
{
    struct ast_state *state = get_ast_state();
    if (state == NULL) {
        return -1;
    }
    return PyObject_IsInstance(obj, state->AST_type);
}