fix ya.make

1 files changed, 0 insertions, 1824 deletions

diff --git a/contrib/tools/python3/src/Python/marshal.c b/contrib/tools/python3/src/Python/marshal.c
deleted file mode 100644
index 4125240606..0000000000
--- a/contrib/tools/python3/src/Python/marshal.c
+++ /dev/null
@@ -1,1824 +0,0 @@
-
-/* Write Python objects to files and read them back.
-   This is primarily intended for writing and reading compiled Python code,
-   even though dicts, lists, sets and frozensets, not commonly seen in
-   code objects, are supported.
-   Version 3 of this protocol properly supports circular links
-   and sharing. */
-
-#define PY_SSIZE_T_CLEAN
-
-#include "Python.h"
-#include "longintrepr.h"
-#include "code.h"
-#include "marshal.h"
-#include "pycore_hashtable.h"
-
-/*[clinic input]
-module marshal
-[clinic start generated code]*/
-/*[clinic end generated code: output=da39a3ee5e6b4b0d input=c982b7930dee17db]*/
-
-#include "clinic/marshal.c.h"
-
-/* High water mark to determine when the marshalled object is dangerously deep
- * and risks coring the interpreter.  When the object stack gets this deep,
- * raise an exception instead of continuing.
- * On Windows debug builds, reduce this value.
- *
- * BUG: https://bugs.python.org/issue33720
- * On Windows PGO builds, the r_object function overallocates its stack and
- * can cause a stack overflow. We reduce the maximum depth for all Windows
- * releases to protect against this.
- * #if defined(MS_WINDOWS) && defined(_DEBUG)
- */
-#if defined(MS_WINDOWS)
-#define MAX_MARSHAL_STACK_DEPTH 1000
-#else
-#define MAX_MARSHAL_STACK_DEPTH 2000
-#endif
-
-#define TYPE_NULL               '0'
-#define TYPE_NONE               'N'
-#define TYPE_FALSE              'F'
-#define TYPE_TRUE               'T'
-#define TYPE_STOPITER           'S'
-#define TYPE_ELLIPSIS           '.'
-#define TYPE_INT                'i'
-/* TYPE_INT64 is not generated anymore.
-   Supported for backward compatibility only. */
-#define TYPE_INT64              'I'
-#define TYPE_FLOAT              'f'
-#define TYPE_BINARY_FLOAT       'g'
-#define TYPE_COMPLEX            'x'
-#define TYPE_BINARY_COMPLEX     'y'
-#define TYPE_LONG               'l'
-#define TYPE_STRING             's'
-#define TYPE_INTERNED           't'
-#define TYPE_REF                'r'
-#define TYPE_TUPLE              '('
-#define TYPE_LIST               '['
-#define TYPE_DICT               '{'
-#define TYPE_CODE               'c'
-#define TYPE_UNICODE            'u'
-#define TYPE_UNKNOWN            '?'
-#define TYPE_SET                '<'
-#define TYPE_FROZENSET          '>'
-#define FLAG_REF                '\x80' /* with a type, add obj to index */
-
-#define TYPE_ASCII              'a'
-#define TYPE_ASCII_INTERNED     'A'
-#define TYPE_SMALL_TUPLE        ')'
-#define TYPE_SHORT_ASCII        'z'
-#define TYPE_SHORT_ASCII_INTERNED 'Z'
-
-#define WFERR_OK 0
-#define WFERR_UNMARSHALLABLE 1
-#define WFERR_NESTEDTOODEEP 2
-#define WFERR_NOMEMORY 3
-
-typedef struct {
-    FILE *fp;
-    int error;  /* see WFERR_* values */
-    int depth;
-    PyObject *str;
-    char *ptr;
-    const char *end;
-    char *buf;
-    _Py_hashtable_t *hashtable;
-    int version;
-} WFILE;
-
-#define w_byte(c, p) do {                               \
-        if ((p)->ptr != (p)->end || w_reserve((p), 1))  \
-            *(p)->ptr++ = (c);                          \
-    } while(0)
-
-static void
-w_flush(WFILE *p)
-{
-    assert(p->fp != NULL);
-    fwrite(p->buf, 1, p->ptr - p->buf, p->fp);
-    p->ptr = p->buf;
-}
-
-static int
-w_reserve(WFILE *p, Py_ssize_t needed)
-{
-    Py_ssize_t pos, size, delta;
-    if (p->ptr == NULL)
-        return 0; /* An error already occurred */
-    if (p->fp != NULL) {
-        w_flush(p);
-        return needed <= p->end - p->ptr;
-    }
-    assert(p->str != NULL);
-    pos = p->ptr - p->buf;
-    size = PyBytes_GET_SIZE(p->str);
-    if (size > 16*1024*1024)
-        delta = (size >> 3);            /* 12.5% overallocation */
-    else
-        delta = size + 1024;
-    delta = Py_MAX(delta, needed);
-    if (delta > PY_SSIZE_T_MAX - size) {
-        p->error = WFERR_NOMEMORY;
-        return 0;
-    }
-    size += delta;
-    if (_PyBytes_Resize(&p->str, size) != 0) {
-        p->end = p->ptr = p->buf = NULL;
-        return 0;
-    }
-    else {
-        p->buf = PyBytes_AS_STRING(p->str);
-        p->ptr = p->buf + pos;
-        p->end = p->buf + size;
-        return 1;
-    }
-}
-
-static void
-w_string(const void *s, Py_ssize_t n, WFILE *p)
-{
-    Py_ssize_t m;
-    if (!n || p->ptr == NULL)
-        return;
-    m = p->end - p->ptr;
-    if (p->fp != NULL) {
-        if (n <= m) {
-            memcpy(p->ptr, s, n);
-            p->ptr += n;
-        }
-        else {
-            w_flush(p);
-            fwrite(s, 1, n, p->fp);
-        }
-    }
-    else {
-        if (n <= m || w_reserve(p, n - m)) {
-            memcpy(p->ptr, s, n);
-            p->ptr += n;
-        }
-    }
-}
-
-static void
-w_short(int x, WFILE *p)
-{
-    w_byte((char)( x      & 0xff), p);
-    w_byte((char)((x>> 8) & 0xff), p);
-}
-
-static void
-w_long(long x, WFILE *p)
-{
-    w_byte((char)( x      & 0xff), p);
-    w_byte((char)((x>> 8) & 0xff), p);
-    w_byte((char)((x>>16) & 0xff), p);
-    w_byte((char)((x>>24) & 0xff), p);
-}
-
-#define SIZE32_MAX  0x7FFFFFFF
-
-#if SIZEOF_SIZE_T > 4
-# define W_SIZE(n, p)  do {                     \
-        if ((n) > SIZE32_MAX) {                 \
-            (p)->depth--;                       \
-            (p)->error = WFERR_UNMARSHALLABLE;  \
-            return;                             \
-        }                                       \
-        w_long((long)(n), p);                   \
-    } while(0)
-#else
-# define W_SIZE  w_long
-#endif
-
-static void
-w_pstring(const void *s, Py_ssize_t n, WFILE *p)
-{
-        W_SIZE(n, p);
-        w_string(s, n, p);
-}
-
-static void
-w_short_pstring(const void *s, Py_ssize_t n, WFILE *p)
-{
-    w_byte(Py_SAFE_DOWNCAST(n, Py_ssize_t, unsigned char), p);
-    w_string(s, n, p);
-}
-
-/* We assume that Python ints are stored internally in base some power of
-   2**15; for the sake of portability we'll always read and write them in base
-   exactly 2**15. */
-
-#define PyLong_MARSHAL_SHIFT 15
-#define PyLong_MARSHAL_BASE ((short)1 << PyLong_MARSHAL_SHIFT)
-#define PyLong_MARSHAL_MASK (PyLong_MARSHAL_BASE - 1)
-#if PyLong_SHIFT % PyLong_MARSHAL_SHIFT != 0
-#error "PyLong_SHIFT must be a multiple of PyLong_MARSHAL_SHIFT"
-#endif
-#define PyLong_MARSHAL_RATIO (PyLong_SHIFT / PyLong_MARSHAL_SHIFT)
-
-#define W_TYPE(t, p) do { \
-    w_byte((t) | flag, (p)); \
-} while(0)
-
-static void
-w_PyLong(const PyLongObject *ob, char flag, WFILE *p)
-{
-    Py_ssize_t i, j, n, l;
-    digit d;
-
-    W_TYPE(TYPE_LONG, p);
-    if (Py_SIZE(ob) == 0) {
-        w_long((long)0, p);
-        return;
-    }
-
-    /* set l to number of base PyLong_MARSHAL_BASE digits */
-    n = Py_ABS(Py_SIZE(ob));
-    l = (n-1) * PyLong_MARSHAL_RATIO;
-    d = ob->ob_digit[n-1];
-    assert(d != 0); /* a PyLong is always normalized */
-    do {
-        d >>= PyLong_MARSHAL_SHIFT;
-        l++;
-    } while (d != 0);
-    if (l > SIZE32_MAX) {
-        p->depth--;
-        p->error = WFERR_UNMARSHALLABLE;
-        return;
-    }
-    w_long((long)(Py_SIZE(ob) > 0 ? l : -l), p);
-
-    for (i=0; i < n-1; i++) {
-        d = ob->ob_digit[i];
-        for (j=0; j < PyLong_MARSHAL_RATIO; j++) {
-            w_short(d & PyLong_MARSHAL_MASK, p);
-            d >>= PyLong_MARSHAL_SHIFT;
-        }
-        assert (d == 0);
-    }
-    d = ob->ob_digit[n-1];
-    do {
-        w_short(d & PyLong_MARSHAL_MASK, p);
-        d >>= PyLong_MARSHAL_SHIFT;
-    } while (d != 0);
-}
-
-static void
-w_float_bin(double v, WFILE *p)
-{
-    unsigned char buf[8];
-    if (_PyFloat_Pack8(v, buf, 1) < 0) {
-        p->error = WFERR_UNMARSHALLABLE;
-        return;
-    }
-    w_string(buf, 8, p);
-}
-
-static void
-w_float_str(double v, WFILE *p)
-{
-    char *buf = PyOS_double_to_string(v, 'g', 17, 0, NULL);
-    if (!buf) {
-        p->error = WFERR_NOMEMORY;
-        return;
-    }
-    w_short_pstring(buf, strlen(buf), p);
-    PyMem_Free(buf);
-}
-
-static int
-w_ref(PyObject *v, char *flag, WFILE *p)
-{
-    _Py_hashtable_entry_t *entry;
-    int w;
-
-    if (p->version < 3 || p->hashtable == NULL)
-        return 0; /* not writing object references */
-
-    /* if it has only one reference, it definitely isn't shared */
-    if (Py_REFCNT(v) == 1)
-        return 0;
-
-    entry = _Py_hashtable_get_entry(p->hashtable, v);
-    if (entry != NULL) {
-        /* write the reference index to the stream */
-        w = (int)(uintptr_t)entry->value;
-        /* we don't store "long" indices in the dict */
-        assert(0 <= w && w <= 0x7fffffff);
-        w_byte(TYPE_REF, p);
-        w_long(w, p);
-        return 1;
-    } else {
-        size_t s = p->hashtable->nentries;
-        /* we don't support long indices */
-        if (s >= 0x7fffffff) {
-            PyErr_SetString(PyExc_ValueError, "too many objects");
-            goto err;
-        }
-        w = (int)s;
-        Py_INCREF(v);
-        if (_Py_hashtable_set(p->hashtable, v, (void *)(uintptr_t)w) < 0) {
-            Py_DECREF(v);
-            goto err;
-        }
-        *flag |= FLAG_REF;
-        return 0;
-    }
-err:
-    p->error = WFERR_UNMARSHALLABLE;
-    return 1;
-}
-
-static void
-w_complex_object(PyObject *v, char flag, WFILE *p);
-
-static void
-w_object(PyObject *v, WFILE *p)
-{
-    char flag = '\0';
-
-    p->depth++;
-
-    if (p->depth > MAX_MARSHAL_STACK_DEPTH) {
-        p->error = WFERR_NESTEDTOODEEP;
-    }
-    else if (v == NULL) {
-        w_byte(TYPE_NULL, p);
-    }
-    else if (v == Py_None) {
-        w_byte(TYPE_NONE, p);
-    }
-    else if (v == PyExc_StopIteration) {
-        w_byte(TYPE_STOPITER, p);
-    }
-    else if (v == Py_Ellipsis) {
-        w_byte(TYPE_ELLIPSIS, p);
-    }
-    else if (v == Py_False) {
-        w_byte(TYPE_FALSE, p);
-    }
-    else if (v == Py_True) {
-        w_byte(TYPE_TRUE, p);
-    }
-    else if (!w_ref(v, &flag, p))
-        w_complex_object(v, flag, p);
-
-    p->depth--;
-}
-
-static void
-w_complex_object(PyObject *v, char flag, WFILE *p)
-{
-    Py_ssize_t i, n;
-
-    if (PyLong_CheckExact(v)) {
-        int overflow;
-        long x = PyLong_AsLongAndOverflow(v, &overflow);
-        if (overflow) {
-            w_PyLong((PyLongObject *)v, flag, p);
-        }
-        else {
-#if SIZEOF_LONG > 4
-            long y = Py_ARITHMETIC_RIGHT_SHIFT(long, x, 31);
-            if (y && y != -1) {
-                /* Too large for TYPE_INT */
-                w_PyLong((PyLongObject*)v, flag, p);
-            }
-            else
-#endif
-            {
-                W_TYPE(TYPE_INT, p);
-                w_long(x, p);
-            }
-        }
-    }
-    else if (PyFloat_CheckExact(v)) {
-        if (p->version > 1) {
-            W_TYPE(TYPE_BINARY_FLOAT, p);
-            w_float_bin(PyFloat_AS_DOUBLE(v), p);
-        }
-        else {
-            W_TYPE(TYPE_FLOAT, p);
-            w_float_str(PyFloat_AS_DOUBLE(v), p);
-        }
-    }
-    else if (PyComplex_CheckExact(v)) {
-        if (p->version > 1) {
-            W_TYPE(TYPE_BINARY_COMPLEX, p);
-            w_float_bin(PyComplex_RealAsDouble(v), p);
-            w_float_bin(PyComplex_ImagAsDouble(v), p);
-        }
-        else {
-            W_TYPE(TYPE_COMPLEX, p);
-            w_float_str(PyComplex_RealAsDouble(v), p);
-            w_float_str(PyComplex_ImagAsDouble(v), p);
-        }
-    }
-    else if (PyBytes_CheckExact(v)) {
-        W_TYPE(TYPE_STRING, p);
-        w_pstring(PyBytes_AS_STRING(v), PyBytes_GET_SIZE(v), p);
-    }
-    else if (PyUnicode_CheckExact(v)) {
-        if (p->version >= 4 && PyUnicode_IS_ASCII(v)) {
-            int is_short = PyUnicode_GET_LENGTH(v) < 256;
-            if (is_short) {
-                if (PyUnicode_CHECK_INTERNED(v))
-                    W_TYPE(TYPE_SHORT_ASCII_INTERNED, p);
-                else
-                    W_TYPE(TYPE_SHORT_ASCII, p);
-                w_short_pstring(PyUnicode_1BYTE_DATA(v),
-                                PyUnicode_GET_LENGTH(v), p);
-            }
-            else {
-                if (PyUnicode_CHECK_INTERNED(v))
-                    W_TYPE(TYPE_ASCII_INTERNED, p);
-                else
-                    W_TYPE(TYPE_ASCII, p);
-                w_pstring(PyUnicode_1BYTE_DATA(v),
-                          PyUnicode_GET_LENGTH(v), p);
-            }
-        }
-        else {
-            PyObject *utf8;
-            utf8 = PyUnicode_AsEncodedString(v, "utf8", "surrogatepass");
-            if (utf8 == NULL) {
-                p->depth--;
-                p->error = WFERR_UNMARSHALLABLE;
-                return;
-            }
-            if (p->version >= 3 &&  PyUnicode_CHECK_INTERNED(v))
-                W_TYPE(TYPE_INTERNED, p);
-            else
-                W_TYPE(TYPE_UNICODE, p);
-            w_pstring(PyBytes_AS_STRING(utf8), PyBytes_GET_SIZE(utf8), p);
-            Py_DECREF(utf8);
-        }
-    }
-    else if (PyTuple_CheckExact(v)) {
-        n = PyTuple_GET_SIZE(v);
-        if (p->version >= 4 && n < 256) {
-            W_TYPE(TYPE_SMALL_TUPLE, p);
-            w_byte((unsigned char)n, p);
-        }
-        else {
-            W_TYPE(TYPE_TUPLE, p);
-            W_SIZE(n, p);
-        }
-        for (i = 0; i < n; i++) {
-            w_object(PyTuple_GET_ITEM(v, i), p);
-        }
-    }
-    else if (PyList_CheckExact(v)) {
-        W_TYPE(TYPE_LIST, p);
-        n = PyList_GET_SIZE(v);
-        W_SIZE(n, p);
-        for (i = 0; i < n; i++) {
-            w_object(PyList_GET_ITEM(v, i), p);
-        }
-    }
-    else if (PyDict_CheckExact(v)) {
-        Py_ssize_t pos;
-        PyObject *key, *value;
-        W_TYPE(TYPE_DICT, p);
-        /* This one is NULL object terminated! */
-        pos = 0;
-        while (PyDict_Next(v, &pos, &key, &value)) {
-            w_object(key, p);
-            w_object(value, p);
-        }
-        w_object((PyObject *)NULL, p);
-    }
-    else if (PyAnySet_CheckExact(v)) {
-        PyObject *value;
-        Py_ssize_t pos = 0;
-        Py_hash_t hash;
-
-        if (PyFrozenSet_CheckExact(v))
-            W_TYPE(TYPE_FROZENSET, p);
-        else
-            W_TYPE(TYPE_SET, p);
-        n = PySet_GET_SIZE(v);
-        W_SIZE(n, p);
-        while (_PySet_NextEntry(v, &pos, &value, &hash)) {
-            w_object(value, p);
-        }
-    }
-    else if (PyCode_Check(v)) {
-        PyCodeObject *co = (PyCodeObject *)v;
-        W_TYPE(TYPE_CODE, p);
-        w_long(co->co_argcount, p);
-        w_long(co->co_posonlyargcount, p);
-        w_long(co->co_kwonlyargcount, p);
-        w_long(co->co_nlocals, p);
-        w_long(co->co_stacksize, p);
-        w_long(co->co_flags, p);
-        w_object(co->co_code, p);
-        w_object(co->co_consts, p);
-        w_object(co->co_names, p);
-        w_object(co->co_varnames, p);
-        w_object(co->co_freevars, p);
-        w_object(co->co_cellvars, p);
-        w_object(co->co_filename, p);
-        w_object(co->co_name, p);
-        w_long(co->co_firstlineno, p);
-        w_object(co->co_linetable, p);
-    }
-    else if (PyObject_CheckBuffer(v)) {
-        /* Write unknown bytes-like objects as a bytes object */
-        Py_buffer view;
-        if (PyObject_GetBuffer(v, &view, PyBUF_SIMPLE) != 0) {
-            w_byte(TYPE_UNKNOWN, p);
-            p->depth--;
-            p->error = WFERR_UNMARSHALLABLE;
-            return;
-        }
-        W_TYPE(TYPE_STRING, p);
-        w_pstring(view.buf, view.len, p);
-        PyBuffer_Release(&view);
-    }
-    else {
-        W_TYPE(TYPE_UNKNOWN, p);
-        p->error = WFERR_UNMARSHALLABLE;
-    }
-}
-
-static void
-w_decref_entry(void *key)
-{
-    PyObject *entry_key = (PyObject *)key;
-    Py_XDECREF(entry_key);
-}
-
-static int
-w_init_refs(WFILE *wf, int version)
-{
-    if (version >= 3) {
-        wf->hashtable = _Py_hashtable_new_full(_Py_hashtable_hash_ptr,
-                                               _Py_hashtable_compare_direct,
-                                               w_decref_entry, NULL, NULL);
-        if (wf->hashtable == NULL) {
-            PyErr_NoMemory();
-            return -1;
-        }
-    }
-    return 0;
-}
-
-static void
-w_clear_refs(WFILE *wf)
-{
-    if (wf->hashtable != NULL) {
-        _Py_hashtable_destroy(wf->hashtable);
-    }
-}
-
-/* version currently has no effect for writing ints. */
-void
-PyMarshal_WriteLongToFile(long x, FILE *fp, int version)
-{
-    char buf[4];
-    WFILE wf;
-    memset(&wf, 0, sizeof(wf));
-    wf.fp = fp;
-    wf.ptr = wf.buf = buf;
-    wf.end = wf.ptr + sizeof(buf);
-    wf.error = WFERR_OK;
-    wf.version = version;
-    w_long(x, &wf);
-    w_flush(&wf);
-}
-
-void
-PyMarshal_WriteObjectToFile(PyObject *x, FILE *fp, int version)
-{
-    char buf[BUFSIZ];
-    WFILE wf;
-    if (PySys_Audit("marshal.dumps", "Oi", x, version) < 0) {
-        return; /* caller must check PyErr_Occurred() */
-    }
-    memset(&wf, 0, sizeof(wf));
-    wf.fp = fp;
-    wf.ptr = wf.buf = buf;
-    wf.end = wf.ptr + sizeof(buf);
-    wf.error = WFERR_OK;
-    wf.version = version;
-    if (w_init_refs(&wf, version)) {
-        return; /* caller must check PyErr_Occurred() */
-    }
-    w_object(x, &wf);
-    w_clear_refs(&wf);
-    w_flush(&wf);
-}
-
-typedef struct {
-    FILE *fp;
-    int depth;
-    PyObject *readable;  /* Stream-like object being read from */
-    const char *ptr;
-    const char *end;
-    char *buf;
-    Py_ssize_t buf_size;
-    PyObject *refs;  /* a list */
-} RFILE;
-
-static const char *
-r_string(Py_ssize_t n, RFILE *p)
-{
-    Py_ssize_t read = -1;
-
-    if (p->ptr != NULL) {
-        /* Fast path for loads() */
-        const char *res = p->ptr;
-        Py_ssize_t left = p->end - p->ptr;
-        if (left < n) {
-            PyErr_SetString(PyExc_EOFError,
-                            "marshal data too short");
-            return NULL;
-        }
-        p->ptr += n;
-        return res;
-    }
-    if (p->buf == NULL) {
-        p->buf = PyMem_Malloc(n);
-        if (p->buf == NULL) {
-            PyErr_NoMemory();
-            return NULL;
-        }
-        p->buf_size = n;
-    }
-    else if (p->buf_size < n) {
-        char *tmp = PyMem_Realloc(p->buf, n);
-        if (tmp == NULL) {
-            PyErr_NoMemory();
-            return NULL;
-        }
-        p->buf = tmp;
-        p->buf_size = n;
-    }
-
-    if (!p->readable) {
-        assert(p->fp != NULL);
-        read = fread(p->buf, 1, n, p->fp);
-    }
-    else {
-        _Py_IDENTIFIER(readinto);
-        PyObject *res, *mview;
-        Py_buffer buf;
-
-        if (PyBuffer_FillInfo(&buf, NULL, p->buf, n, 0, PyBUF_CONTIG) == -1)
-            return NULL;
-        mview = PyMemoryView_FromBuffer(&buf);
-        if (mview == NULL)
-            return NULL;
-
-        res = _PyObject_CallMethodId(p->readable, &PyId_readinto, "N", mview);
-        if (res != NULL) {
-            read = PyNumber_AsSsize_t(res, PyExc_ValueError);
-            Py_DECREF(res);
-        }
-    }
-    if (read != n) {
-        if (!PyErr_Occurred()) {
-            if (read > n)
-                PyErr_Format(PyExc_ValueError,
-                             "read() returned too much data: "
-                             "%zd bytes requested, %zd returned",
-                             n, read);
-            else
-                PyErr_SetString(PyExc_EOFError,
-                                "EOF read where not expected");
-        }
-        return NULL;
-    }
-    return p->buf;
-}
-
-static int
-r_byte(RFILE *p)
-{
-    int c = EOF;
-
-    if (p->ptr != NULL) {
-        if (p->ptr < p->end)
-            c = (unsigned char) *p->ptr++;
-        return c;
-    }
-    if (!p->readable) {
-        assert(p->fp);
-        c = getc(p->fp);
-    }
-    else {
-        const char *ptr = r_string(1, p);
-        if (ptr != NULL)
-            c = *(const unsigned char *) ptr;
-    }
-    return c;
-}
-
-static int
-r_short(RFILE *p)
-{
-    short x = -1;
-    const unsigned char *buffer;
-
-    buffer = (const unsigned char *) r_string(2, p);
-    if (buffer != NULL) {
-        x = buffer[0];
-        x |= buffer[1] << 8;
-        /* Sign-extension, in case short greater than 16 bits */
-        x |= -(x & 0x8000);
-    }
-    return x;
-}
-
-static long
-r_long(RFILE *p)
-{
-    long x = -1;
-    const unsigned char *buffer;
-
-    buffer = (const unsigned char *) r_string(4, p);
-    if (buffer != NULL) {
-        x = buffer[0];
-        x |= (long)buffer[1] << 8;
-        x |= (long)buffer[2] << 16;
-        x |= (long)buffer[3] << 24;
-#if SIZEOF_LONG > 4
-        /* Sign extension for 64-bit machines */
-        x |= -(x & 0x80000000L);
-#endif
-    }
-    return x;
-}
-
-/* r_long64 deals with the TYPE_INT64 code. */
-static PyObject *
-r_long64(RFILE *p)
-{
-    const unsigned char *buffer = (const unsigned char *) r_string(8, p);
-    if (buffer == NULL) {
-        return NULL;
-    }
-    return _PyLong_FromByteArray(buffer, 8,
-                                 1 /* little endian */,
-                                 1 /* signed */);
-}
-
-static PyObject *
-r_PyLong(RFILE *p)
-{
-    PyLongObject *ob;
-    long n, size, i;
-    int j, md, shorts_in_top_digit;
-    digit d;
-
-    n = r_long(p);
-    if (PyErr_Occurred())
-        return NULL;
-    if (n == 0)
-        return (PyObject *)_PyLong_New(0);
-    if (n < -SIZE32_MAX || n > SIZE32_MAX) {
-        PyErr_SetString(PyExc_ValueError,
-                       "bad marshal data (long size out of range)");
-        return NULL;
-    }
-
-    size = 1 + (Py_ABS(n) - 1) / PyLong_MARSHAL_RATIO;
-    shorts_in_top_digit = 1 + (Py_ABS(n) - 1) % PyLong_MARSHAL_RATIO;
-    ob = _PyLong_New(size);
-    if (ob == NULL)
-        return NULL;
-
-    Py_SET_SIZE(ob, n > 0 ? size : -size);
-
-    for (i = 0; i < size-1; i++) {
-        d = 0;
-        for (j=0; j < PyLong_MARSHAL_RATIO; j++) {
-            md = r_short(p);
-            if (PyErr_Occurred()) {
-                Py_DECREF(ob);
-                return NULL;
-            }
-            if (md < 0 || md > PyLong_MARSHAL_BASE)
-                goto bad_digit;
-            d += (digit)md << j*PyLong_MARSHAL_SHIFT;
-        }
-        ob->ob_digit[i] = d;
-    }
-
-    d = 0;
-    for (j=0; j < shorts_in_top_digit; j++) {
-        md = r_short(p);
-        if (PyErr_Occurred()) {
-            Py_DECREF(ob);
-            return NULL;
-        }
-        if (md < 0 || md > PyLong_MARSHAL_BASE)
-            goto bad_digit;
-        /* topmost marshal digit should be nonzero */
-        if (md == 0 && j == shorts_in_top_digit - 1) {
-            Py_DECREF(ob);
-            PyErr_SetString(PyExc_ValueError,
-                "bad marshal data (unnormalized long data)");
-            return NULL;
-        }
-        d += (digit)md << j*PyLong_MARSHAL_SHIFT;
-    }
-    if (PyErr_Occurred()) {
-        Py_DECREF(ob);
-        return NULL;
-    }
-    /* top digit should be nonzero, else the resulting PyLong won't be
-       normalized */
-    ob->ob_digit[size-1] = d;
-    return (PyObject *)ob;
-  bad_digit:
-    Py_DECREF(ob);
-    PyErr_SetString(PyExc_ValueError,
-                    "bad marshal data (digit out of range in long)");
-    return NULL;
-}
-
-static double
-r_float_bin(RFILE *p)
-{
-    const unsigned char *buf = (const unsigned char *) r_string(8, p);
-    if (buf == NULL)
-        return -1;
-    return _PyFloat_Unpack8(buf, 1);
-}
-
-/* Issue #33720: Disable inlining for reducing the C stack consumption
-   on PGO builds. */
-_Py_NO_INLINE static double
-r_float_str(RFILE *p)
-{
-    int n;
-    char buf[256];
-    const char *ptr;
-    n = r_byte(p);
-    if (n == EOF) {
-        PyErr_SetString(PyExc_EOFError,
-            "EOF read where object expected");
-        return -1;
-    }
-    ptr = r_string(n, p);
-    if (ptr == NULL) {
-        return -1;
-    }
-    memcpy(buf, ptr, n);
-    buf[n] = '\0';
-    return PyOS_string_to_double(buf, NULL, NULL);
-}
-
-/* allocate the reflist index for a new object. Return -1 on failure */
-static Py_ssize_t
-r_ref_reserve(int flag, RFILE *p)
-{
-    if (flag) { /* currently only FLAG_REF is defined */
-        Py_ssize_t idx = PyList_GET_SIZE(p->refs);
-        if (idx >= 0x7ffffffe) {
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (index list too large)");
-            return -1;
-        }
-        if (PyList_Append(p->refs, Py_None) < 0)
-            return -1;
-        return idx;
-    } else
-        return 0;
-}
-
-/* insert the new object 'o' to the reflist at previously
- * allocated index 'idx'.
- * 'o' can be NULL, in which case nothing is done.
- * if 'o' was non-NULL, and the function succeeds, 'o' is returned.
- * if 'o' was non-NULL, and the function fails, 'o' is released and
- * NULL returned. This simplifies error checking at the call site since
- * a single test for NULL for the function result is enough.
- */
-static PyObject *
-r_ref_insert(PyObject *o, Py_ssize_t idx, int flag, RFILE *p)
-{
-    if (o != NULL && flag) { /* currently only FLAG_REF is defined */
-        PyObject *tmp = PyList_GET_ITEM(p->refs, idx);
-        Py_INCREF(o);
-        PyList_SET_ITEM(p->refs, idx, o);
-        Py_DECREF(tmp);
-    }
-    return o;
-}
-
-/* combination of both above, used when an object can be
- * created whenever it is seen in the file, as opposed to
- * after having loaded its sub-objects.
- */
-static PyObject *
-r_ref(PyObject *o, int flag, RFILE *p)
-{
-    assert(flag & FLAG_REF);
-    if (o == NULL)
-        return NULL;
-    if (PyList_Append(p->refs, o) < 0) {
-        Py_DECREF(o); /* release the new object */
-        return NULL;
-    }
-    return o;
-}
-
-static PyObject *
-r_object(RFILE *p)
-{
-    /* NULL is a valid return value, it does not necessarily means that
-       an exception is set. */
-    PyObject *v, *v2;
-    Py_ssize_t idx = 0;
-    long i, n;
-    int type, code = r_byte(p);
-    int flag, is_interned = 0;
-    PyObject *retval = NULL;
-
-    if (code == EOF) {
-        PyErr_SetString(PyExc_EOFError,
-                        "EOF read where object expected");
-        return NULL;
-    }
-
-    p->depth++;
-
-    if (p->depth > MAX_MARSHAL_STACK_DEPTH) {
-        p->depth--;
-        PyErr_SetString(PyExc_ValueError, "recursion limit exceeded");
-        return NULL;
-    }
-
-    flag = code & FLAG_REF;
-    type = code & ~FLAG_REF;
-
-#define R_REF(O) do{\
-    if (flag) \
-        O = r_ref(O, flag, p);\
-} while (0)
-
-    switch (type) {
-
-    case TYPE_NULL:
-        break;
-
-    case TYPE_NONE:
-        Py_INCREF(Py_None);
-        retval = Py_None;
-        break;
-
-    case TYPE_STOPITER:
-        Py_INCREF(PyExc_StopIteration);
-        retval = PyExc_StopIteration;
-        break;
-
-    case TYPE_ELLIPSIS:
-        Py_INCREF(Py_Ellipsis);
-        retval = Py_Ellipsis;
-        break;
-
-    case TYPE_FALSE:
-        Py_INCREF(Py_False);
-        retval = Py_False;
-        break;
-
-    case TYPE_TRUE:
-        Py_INCREF(Py_True);
-        retval = Py_True;
-        break;
-
-    case TYPE_INT:
-        n = r_long(p);
-        retval = PyErr_Occurred() ? NULL : PyLong_FromLong(n);
-        R_REF(retval);
-        break;
-
-    case TYPE_INT64:
-        retval = r_long64(p);
-        R_REF(retval);
-        break;
-
-    case TYPE_LONG:
-        retval = r_PyLong(p);
-        R_REF(retval);
-        break;
-
-    case TYPE_FLOAT:
-        {
-            double x = r_float_str(p);
-            if (x == -1.0 && PyErr_Occurred())
-                break;
-            retval = PyFloat_FromDouble(x);
-            R_REF(retval);
-            break;
-        }
-
-    case TYPE_BINARY_FLOAT:
-        {
-            double x = r_float_bin(p);
-            if (x == -1.0 && PyErr_Occurred())
-                break;
-            retval = PyFloat_FromDouble(x);
-            R_REF(retval);
-            break;
-        }
-
-    case TYPE_COMPLEX:
-        {
-            Py_complex c;
-            c.real = r_float_str(p);
-            if (c.real == -1.0 && PyErr_Occurred())
-                break;
-            c.imag = r_float_str(p);
-            if (c.imag == -1.0 && PyErr_Occurred())
-                break;
-            retval = PyComplex_FromCComplex(c);
-            R_REF(retval);
-            break;
-        }
-
-    case TYPE_BINARY_COMPLEX:
-        {
-            Py_complex c;
-            c.real = r_float_bin(p);
-            if (c.real == -1.0 && PyErr_Occurred())
-                break;
-            c.imag = r_float_bin(p);
-            if (c.imag == -1.0 && PyErr_Occurred())
-                break;
-            retval = PyComplex_FromCComplex(c);
-            R_REF(retval);
-            break;
-        }
-
-    case TYPE_STRING:
-        {
-            const char *ptr;
-            n = r_long(p);
-            if (PyErr_Occurred())
-                break;
-            if (n < 0 || n > SIZE32_MAX) {
-                PyErr_SetString(PyExc_ValueError, "bad marshal data (bytes object size out of range)");
-                break;
-            }
-            v = PyBytes_FromStringAndSize((char *)NULL, n);
-            if (v == NULL)
-                break;
-            ptr = r_string(n, p);
-            if (ptr == NULL) {
-                Py_DECREF(v);
-                break;
-            }
-            memcpy(PyBytes_AS_STRING(v), ptr, n);
-            retval = v;
-            R_REF(retval);
-            break;
-        }
-
-    case TYPE_ASCII_INTERNED:
-        is_interned = 1;
-        /* fall through */
-    case TYPE_ASCII:
-        n = r_long(p);
-        if (PyErr_Occurred())
-            break;
-        if (n < 0 || n > SIZE32_MAX) {
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (string size out of range)");
-            break;
-        }
-        goto _read_ascii;
-
-    case TYPE_SHORT_ASCII_INTERNED:
-        is_interned = 1;
-        /* fall through */
-    case TYPE_SHORT_ASCII:
-        n = r_byte(p);
-        if (n == EOF) {
-            PyErr_SetString(PyExc_EOFError,
-                "EOF read where object expected");
-            break;
-        }
-    _read_ascii:
-        {
-            const char *ptr;
-            ptr = r_string(n, p);
-            if (ptr == NULL)
-                break;
-            v = PyUnicode_FromKindAndData(PyUnicode_1BYTE_KIND, ptr, n);
-            if (v == NULL)
-                break;
-            if (is_interned)
-                PyUnicode_InternInPlace(&v);
-            retval = v;
-            R_REF(retval);
-            break;
-        }
-
-    case TYPE_INTERNED:
-        is_interned = 1;
-        /* fall through */
-    case TYPE_UNICODE:
-        {
-        const char *buffer;
-
-        n = r_long(p);
-        if (PyErr_Occurred())
-            break;
-        if (n < 0 || n > SIZE32_MAX) {
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (string size out of range)");
-            break;
-        }
-        if (n != 0) {
-            buffer = r_string(n, p);
-            if (buffer == NULL)
-                break;
-            v = PyUnicode_DecodeUTF8(buffer, n, "surrogatepass");
-        }
-        else {
-            v = PyUnicode_New(0, 0);
-        }
-        if (v == NULL)
-            break;
-        if (is_interned)
-            PyUnicode_InternInPlace(&v);
-        retval = v;
-        R_REF(retval);
-        break;
-        }
-
-    case TYPE_SMALL_TUPLE:
-        n = (unsigned char) r_byte(p);
-        if (PyErr_Occurred())
-            break;
-        goto _read_tuple;
-    case TYPE_TUPLE:
-        n = r_long(p);
-        if (PyErr_Occurred())
-            break;
-        if (n < 0 || n > SIZE32_MAX) {
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (tuple size out of range)");
-            break;
-        }
-    _read_tuple:
-        v = PyTuple_New(n);
-        R_REF(v);
-        if (v == NULL)
-            break;
-
-        for (i = 0; i < n; i++) {
-            v2 = r_object(p);
-            if ( v2 == NULL ) {
-                if (!PyErr_Occurred())
-                    PyErr_SetString(PyExc_TypeError,
-                        "NULL object in marshal data for tuple");
-                Py_DECREF(v);
-                v = NULL;
-                break;
-            }
-            PyTuple_SET_ITEM(v, i, v2);
-        }
-        retval = v;
-        break;
-
-    case TYPE_LIST:
-        n = r_long(p);
-        if (PyErr_Occurred())
-            break;
-        if (n < 0 || n > SIZE32_MAX) {
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (list size out of range)");
-            break;
-        }
-        v = PyList_New(n);
-        R_REF(v);
-        if (v == NULL)
-            break;
-        for (i = 0; i < n; i++) {
-            v2 = r_object(p);
-            if ( v2 == NULL ) {
-                if (!PyErr_Occurred())
-                    PyErr_SetString(PyExc_TypeError,
-                        "NULL object in marshal data for list");
-                Py_DECREF(v);
-                v = NULL;
-                break;
-            }
-            PyList_SET_ITEM(v, i, v2);
-        }
-        retval = v;
-        break;
-
-    case TYPE_DICT:
-        v = PyDict_New();
-        R_REF(v);
-        if (v == NULL)
-            break;
-        for (;;) {
-            PyObject *key, *val;
-            key = r_object(p);
-            if (key == NULL)
-                break;
-            val = r_object(p);
-            if (val == NULL) {
-                Py_DECREF(key);
-                break;
-            }
-            if (PyDict_SetItem(v, key, val) < 0) {
-                Py_DECREF(key);
-                Py_DECREF(val);
-                break;
-            }
-            Py_DECREF(key);
-            Py_DECREF(val);
-        }
-        if (PyErr_Occurred()) {
-            Py_DECREF(v);
-            v = NULL;
-        }
-        retval = v;
-        break;
-
-    case TYPE_SET:
-    case TYPE_FROZENSET:
-        n = r_long(p);
-        if (PyErr_Occurred())
-            break;
-        if (n < 0 || n > SIZE32_MAX) {
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (set size out of range)");
-            break;
-        }
-
-        if (n == 0 && type == TYPE_FROZENSET) {
-            /* call frozenset() to get the empty frozenset singleton */
-            v = _PyObject_CallNoArg((PyObject*)&PyFrozenSet_Type);
-            if (v == NULL)
-                break;
-            R_REF(v);
-            retval = v;
-        }
-        else {
-            v = (type == TYPE_SET) ? PySet_New(NULL) : PyFrozenSet_New(NULL);
-            if (type == TYPE_SET) {
-                R_REF(v);
-            } else {
-                /* must use delayed registration of frozensets because they must
-                 * be init with a refcount of 1
-                 */
-                idx = r_ref_reserve(flag, p);
-                if (idx < 0)
-                    Py_CLEAR(v); /* signal error */
-            }
-            if (v == NULL)
-                break;
-
-            for (i = 0; i < n; i++) {
-                v2 = r_object(p);
-                if ( v2 == NULL ) {
-                    if (!PyErr_Occurred())
-                        PyErr_SetString(PyExc_TypeError,
-                            "NULL object in marshal data for set");
-                    Py_DECREF(v);
-                    v = NULL;
-                    break;
-                }
-                if (PySet_Add(v, v2) == -1) {
-                    Py_DECREF(v);
-                    Py_DECREF(v2);
-                    v = NULL;
-                    break;
-                }
-                Py_DECREF(v2);
-            }
-            if (type != TYPE_SET)
-                v = r_ref_insert(v, idx, flag, p);
-            retval = v;
-        }
-        break;
-
-    case TYPE_CODE:
-        {
-            int argcount;
-            int posonlyargcount;
-            int kwonlyargcount;
-            int nlocals;
-            int stacksize;
-            int flags;
-            PyObject *code = NULL;
-            PyObject *consts = NULL;
-            PyObject *names = NULL;
-            PyObject *varnames = NULL;
-            PyObject *freevars = NULL;
-            PyObject *cellvars = NULL;
-            PyObject *filename = NULL;
-            PyObject *name = NULL;
-            int firstlineno;
-            PyObject *linetable = NULL;
-
-            idx = r_ref_reserve(flag, p);
-            if (idx < 0)
-                break;
-
-            v = NULL;
-
-            /* XXX ignore long->int overflows for now */
-            argcount = (int)r_long(p);
-            if (PyErr_Occurred())
-                goto code_error;
-            posonlyargcount = (int)r_long(p);
-            if (PyErr_Occurred()) {
-                goto code_error;
-            }
-            kwonlyargcount = (int)r_long(p);
-            if (PyErr_Occurred())
-                goto code_error;
-            nlocals = (int)r_long(p);
-            if (PyErr_Occurred())
-                goto code_error;
-            stacksize = (int)r_long(p);
-            if (PyErr_Occurred())
-                goto code_error;
-            flags = (int)r_long(p);
-            if (PyErr_Occurred())
-                goto code_error;
-            code = r_object(p);
-            if (code == NULL)
-                goto code_error;
-            consts = r_object(p);
-            if (consts == NULL)
-                goto code_error;
-            names = r_object(p);
-            if (names == NULL)
-                goto code_error;
-            varnames = r_object(p);
-            if (varnames == NULL)
-                goto code_error;
-            freevars = r_object(p);
-            if (freevars == NULL)
-                goto code_error;
-            cellvars = r_object(p);
-            if (cellvars == NULL)
-                goto code_error;
-            filename = r_object(p);
-            if (filename == NULL)
-                goto code_error;
-            name = r_object(p);
-            if (name == NULL)
-                goto code_error;
-            firstlineno = (int)r_long(p);
-            if (firstlineno == -1 && PyErr_Occurred())
-                break;
-            linetable = r_object(p);
-            if (linetable == NULL)
-                goto code_error;
-
-            v = (PyObject *) PyCode_NewWithPosOnlyArgs(
-                            argcount, posonlyargcount, kwonlyargcount,
-                            nlocals, stacksize, flags,
-                            code, consts, names, varnames,
-                            freevars, cellvars, filename, name,
-                            firstlineno, linetable);
-            v = r_ref_insert(v, idx, flag, p);
-
-          code_error:
-            Py_XDECREF(code);
-            Py_XDECREF(consts);
-            Py_XDECREF(names);
-            Py_XDECREF(varnames);
-            Py_XDECREF(freevars);
-            Py_XDECREF(cellvars);
-            Py_XDECREF(filename);
-            Py_XDECREF(name);
-            Py_XDECREF(linetable);
-        }
-        retval = v;
-        break;
-
-    case TYPE_REF:
-        n = r_long(p);
-        if (n < 0 || n >= PyList_GET_SIZE(p->refs)) {
-            if (n == -1 && PyErr_Occurred())
-                break;
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (invalid reference)");
-            break;
-        }
-        v = PyList_GET_ITEM(p->refs, n);
-        if (v == Py_None) {
-            PyErr_SetString(PyExc_ValueError, "bad marshal data (invalid reference)");
-            break;
-        }
-        Py_INCREF(v);
-        retval = v;
-        break;
-
-    default:
-        /* Bogus data got written, which isn't ideal.
-           This will let you keep working and recover. */
-        PyErr_SetString(PyExc_ValueError, "bad marshal data (unknown type code)");
-        break;
-
-    }
-    p->depth--;
-    return retval;
-}
-
-static PyObject *
-read_object(RFILE *p)
-{
-    PyObject *v;
-    if (PyErr_Occurred()) {
-        fprintf(stderr, "XXX readobject called with exception set\n");
-        return NULL;
-    }
-    if (p->ptr && p->end) {
-        if (PySys_Audit("marshal.loads", "y#", p->ptr, (Py_ssize_t)(p->end - p->ptr)) < 0) {
-            return NULL;
-        }
-    } else if (p->fp || p->readable) {
-        if (PySys_Audit("marshal.load", NULL) < 0) {
-            return NULL;
-        }
-    }
-    v = r_object(p);
-    if (v == NULL && !PyErr_Occurred())
-        PyErr_SetString(PyExc_TypeError, "NULL object in marshal data for object");
-    return v;
-}
-
-int
-PyMarshal_ReadShortFromFile(FILE *fp)
-{
-    RFILE rf;
-    int res;
-    assert(fp);
-    rf.readable = NULL;
-    rf.fp = fp;
-    rf.end = rf.ptr = NULL;
-    rf.buf = NULL;
-    res = r_short(&rf);
-    if (rf.buf != NULL)
-        PyMem_Free(rf.buf);
-    return res;
-}
-
-long
-PyMarshal_ReadLongFromFile(FILE *fp)
-{
-    RFILE rf;
-    long res;
-    rf.fp = fp;
-    rf.readable = NULL;
-    rf.ptr = rf.end = NULL;
-    rf.buf = NULL;
-    res = r_long(&rf);
-    if (rf.buf != NULL)
-        PyMem_Free(rf.buf);
-    return res;
-}
-
-/* Return size of file in bytes; < 0 if unknown or INT_MAX if too big */
-static off_t
-getfilesize(FILE *fp)
-{
-    struct _Py_stat_struct st;
-    if (_Py_fstat_noraise(fileno(fp), &st) != 0)
-        return -1;
-#if SIZEOF_OFF_T == 4
-    else if (st.st_size >= INT_MAX)
-        return (off_t)INT_MAX;
-#endif
-    else
-        return (off_t)st.st_size;
-}
-
-/* If we can get the size of the file up-front, and it's reasonably small,
- * read it in one gulp and delegate to ...FromString() instead.  Much quicker
- * than reading a byte at a time from file; speeds .pyc imports.
- * CAUTION:  since this may read the entire remainder of the file, don't
- * call it unless you know you're done with the file.
- */
-PyObject *
-PyMarshal_ReadLastObjectFromFile(FILE *fp)
-{
-/* REASONABLE_FILE_LIMIT is by defn something big enough for Tkinter.pyc. */
-#define REASONABLE_FILE_LIMIT (1L << 18)
-    off_t filesize;
-    filesize = getfilesize(fp);
-    if (filesize > 0 && filesize <= REASONABLE_FILE_LIMIT) {
-        char* pBuf = (char *)PyMem_Malloc(filesize);
-        if (pBuf != NULL) {
-            size_t n = fread(pBuf, 1, (size_t)filesize, fp);
-            PyObject* v = PyMarshal_ReadObjectFromString(pBuf, n);
-            PyMem_Free(pBuf);
-            return v;
-        }
-
-    }
-    /* We don't have fstat, or we do but the file is larger than
-     * REASONABLE_FILE_LIMIT or malloc failed -- read a byte at a time.
-     */
-    return PyMarshal_ReadObjectFromFile(fp);
-
-#undef REASONABLE_FILE_LIMIT
-}
-
-PyObject *
-PyMarshal_ReadObjectFromFile(FILE *fp)
-{
-    RFILE rf;
-    PyObject *result;
-    rf.fp = fp;
-    rf.readable = NULL;
-    rf.depth = 0;
-    rf.ptr = rf.end = NULL;
-    rf.buf = NULL;
-    rf.refs = PyList_New(0);
-    if (rf.refs == NULL)
-        return NULL;
-    result = read_object(&rf);
-    Py_DECREF(rf.refs);
-    if (rf.buf != NULL)
-        PyMem_Free(rf.buf);
-    return result;
-}
-
-PyObject *
-PyMarshal_ReadObjectFromString(const char *str, Py_ssize_t len)
-{
-    RFILE rf;
-    PyObject *result;
-    rf.fp = NULL;
-    rf.readable = NULL;
-    rf.ptr = str;
-    rf.end = str + len;
-    rf.buf = NULL;
-    rf.depth = 0;
-    rf.refs = PyList_New(0);
-    if (rf.refs == NULL)
-        return NULL;
-    result = read_object(&rf);
-    Py_DECREF(rf.refs);
-    if (rf.buf != NULL)
-        PyMem_Free(rf.buf);
-    return result;
-}
-
-PyObject *
-PyMarshal_WriteObjectToString(PyObject *x, int version)
-{
-    WFILE wf;
-
-    if (PySys_Audit("marshal.dumps", "Oi", x, version) < 0) {
-        return NULL;
-    }
-    memset(&wf, 0, sizeof(wf));
-    wf.str = PyBytes_FromStringAndSize((char *)NULL, 50);
-    if (wf.str == NULL)
-        return NULL;
-    wf.ptr = wf.buf = PyBytes_AS_STRING(wf.str);
-    wf.end = wf.ptr + PyBytes_GET_SIZE(wf.str);
-    wf.error = WFERR_OK;
-    wf.version = version;
-    if (w_init_refs(&wf, version)) {
-        Py_DECREF(wf.str);
-        return NULL;
-    }
-    w_object(x, &wf);
-    w_clear_refs(&wf);
-    if (wf.str != NULL) {
-        const char *base = PyBytes_AS_STRING(wf.str);
-        if (_PyBytes_Resize(&wf.str, (Py_ssize_t)(wf.ptr - base)) < 0)
-            return NULL;
-    }
-    if (wf.error != WFERR_OK) {
-        Py_XDECREF(wf.str);
-        if (wf.error == WFERR_NOMEMORY)
-            PyErr_NoMemory();
-        else
-            PyErr_SetString(PyExc_ValueError,
-              (wf.error==WFERR_UNMARSHALLABLE)?"unmarshallable object"
-               :"object too deeply nested to marshal");
-        return NULL;
-    }
-    return wf.str;
-}
-
-/* And an interface for Python programs... */
-/*[clinic input]
-marshal.dump
-
-    value: object
-        Must be a supported type.
-    file: object
-        Must be a writeable binary file.
-    version: int(c_default="Py_MARSHAL_VERSION") = version
-        Indicates the data format that dump should use.
-    /
-
-Write the value on the open file.
-
-If the value has (or contains an object that has) an unsupported type, a
-ValueError exception is raised - but garbage data will also be written
-to the file. The object will not be properly read back by load().
-[clinic start generated code]*/
-
-static PyObject *
-marshal_dump_impl(PyObject *module, PyObject *value, PyObject *file,
-                  int version)
-/*[clinic end generated code: output=aaee62c7028a7cb2 input=6c7a3c23c6fef556]*/
-{
-    /* XXX Quick hack -- need to do this differently */
-    PyObject *s;
-    PyObject *res;
-    _Py_IDENTIFIER(write);
-
-    s = PyMarshal_WriteObjectToString(value, version);
-    if (s == NULL)
-        return NULL;
-    res = _PyObject_CallMethodIdOneArg(file, &PyId_write, s);
-    Py_DECREF(s);
-    return res;
-}
-
-/*[clinic input]
-marshal.load
-
-    file: object
-        Must be readable binary file.
-    /
-
-Read one value from the open file and return it.
-
-If no valid value is read (e.g. because the data has a different Python
-version's incompatible marshal format), raise EOFError, ValueError or
-TypeError.
-
-Note: If an object containing an unsupported type was marshalled with
-dump(), load() will substitute None for the unmarshallable type.
-[clinic start generated code]*/
-
-static PyObject *
-marshal_load(PyObject *module, PyObject *file)
-/*[clinic end generated code: output=f8e5c33233566344 input=c85c2b594cd8124a]*/
-{
-    PyObject *data, *result;
-    _Py_IDENTIFIER(read);
-    RFILE rf;
-
-    /*
-     * Make a call to the read method, but read zero bytes.
-     * This is to ensure that the object passed in at least
-     * has a read method which returns bytes.
-     * This can be removed if we guarantee good error handling
-     * for r_string()
-     */
-    data = _PyObject_CallMethodId(file, &PyId_read, "i", 0);
-    if (data == NULL)
-        return NULL;
-    if (!PyBytes_Check(data)) {
-        PyErr_Format(PyExc_TypeError,
-                     "file.read() returned not bytes but %.100s",
-                     Py_TYPE(data)->tp_name);
-        result = NULL;
-    }
-    else {
-        rf.depth = 0;
-        rf.fp = NULL;
-        rf.readable = file;
-        rf.ptr = rf.end = NULL;
-        rf.buf = NULL;
-        if ((rf.refs = PyList_New(0)) != NULL) {
-            result = read_object(&rf);
-            Py_DECREF(rf.refs);
-            if (rf.buf != NULL)
-                PyMem_Free(rf.buf);
-        } else
-            result = NULL;
-    }
-    Py_DECREF(data);
-    return result;
-}
-
-/*[clinic input]
-marshal.dumps
-
-    value: object
-        Must be a supported type.
-    version: int(c_default="Py_MARSHAL_VERSION") = version
-        Indicates the data format that dumps should use.
-    /
-
-Return the bytes object that would be written to a file by dump(value, file).
-
-Raise a ValueError exception if value has (or contains an object that has) an
-unsupported type.
-[clinic start generated code]*/
-
-static PyObject *
-marshal_dumps_impl(PyObject *module, PyObject *value, int version)
-/*[clinic end generated code: output=9c200f98d7256cad input=a2139ea8608e9b27]*/
-{
-    return PyMarshal_WriteObjectToString(value, version);
-}
-
-/*[clinic input]
-marshal.loads
-
-    bytes: Py_buffer
-    /
-
-Convert the bytes-like object to a value.
-
-If no valid value is found, raise EOFError, ValueError or TypeError.  Extra
-bytes in the input are ignored.
-[clinic start generated code]*/
-
-static PyObject *
-marshal_loads_impl(PyObject *module, Py_buffer *bytes)
-/*[clinic end generated code: output=9fc65985c93d1bb1 input=6f426518459c8495]*/
-{
-    RFILE rf;
-    char *s = bytes->buf;
-    Py_ssize_t n = bytes->len;
-    PyObject* result;
-    rf.fp = NULL;
-    rf.readable = NULL;
-    rf.ptr = s;
-    rf.end = s + n;
-    rf.depth = 0;
-    if ((rf.refs = PyList_New(0)) == NULL)
-        return NULL;
-    result = read_object(&rf);
-    Py_DECREF(rf.refs);
-    return result;
-}
-
-static PyMethodDef marshal_methods[] = {
-    MARSHAL_DUMP_METHODDEF
-    MARSHAL_LOAD_METHODDEF
-    MARSHAL_DUMPS_METHODDEF
-    MARSHAL_LOADS_METHODDEF
-    {NULL,              NULL}           /* sentinel */
-};
-
-
-PyDoc_STRVAR(module_doc,
-"This module contains functions that can read and write Python values in\n\
-a binary format. The format is specific to Python, but independent of\n\
-machine architecture issues.\n\
-\n\
-Not all Python object types are supported; in general, only objects\n\
-whose value is independent from a particular invocation of Python can be\n\
-written and read by this module. The following types are supported:\n\
-None, integers, floating point numbers, strings, bytes, bytearrays,\n\
-tuples, lists, sets, dictionaries, and code objects, where it\n\
-should be understood that tuples, lists and dictionaries are only\n\
-supported as long as the values contained therein are themselves\n\
-supported; and recursive lists and dictionaries should not be written\n\
-(they will cause infinite loops).\n\
-\n\
-Variables:\n\
-\n\
-version -- indicates the format that the module uses. Version 0 is the\n\
-    historical format, version 1 shares interned strings and version 2\n\
-    uses a binary format for floating point numbers.\n\
-    Version 3 shares common object references (New in version 3.4).\n\
-\n\
-Functions:\n\
-\n\
-dump() -- write value to a file\n\
-load() -- read value from a file\n\
-dumps() -- marshal value as a bytes object\n\
-loads() -- read value from a bytes-like object");
-
-
-static int
-marshal_module_exec(PyObject *mod)
-{
-    if (PyModule_AddIntConstant(mod, "version", Py_MARSHAL_VERSION) < 0) {
-        return -1;
-    }
-    return 0;
-}
-
-static PyModuleDef_Slot marshalmodule_slots[] = {
-    {Py_mod_exec, marshal_module_exec},
-    {0, NULL}
-};
-
-static struct PyModuleDef marshalmodule = {
-    PyModuleDef_HEAD_INIT,
-    .m_name = "marshal",
-    .m_doc = module_doc,
-    .m_methods = marshal_methods,
-    .m_slots = marshalmodule_slots,
-};
-
-PyMODINIT_FUNC
-PyMarshal_Init(void)
-{
-    return PyModuleDef_Init(&marshalmodule);
-}