1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
|
//===-- HTMLGenerator.cpp - HTML Generator ----------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "Generators.h"
#include "Representation.h"
#include "clang/Basic/Version.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/JSON.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include <optional>
#include <string>
using namespace llvm;
namespace clang {
namespace doc {
namespace {
class HTMLTag {
public:
// Any other tag can be added if required
enum TagType {
TAG_A,
TAG_DIV,
TAG_FOOTER,
TAG_H1,
TAG_H2,
TAG_H3,
TAG_HEADER,
TAG_LI,
TAG_LINK,
TAG_MAIN,
TAG_META,
TAG_OL,
TAG_P,
TAG_SCRIPT,
TAG_SPAN,
TAG_TITLE,
TAG_UL,
};
HTMLTag() = default;
constexpr HTMLTag(TagType Value) : Value(Value) {}
operator TagType() const { return Value; }
operator bool() = delete;
bool IsSelfClosing() const;
llvm::SmallString<16> ToString() const;
private:
TagType Value;
};
enum NodeType {
NODE_TEXT,
NODE_TAG,
};
struct HTMLNode {
HTMLNode(NodeType Type) : Type(Type) {}
virtual ~HTMLNode() = default;
virtual void Render(llvm::raw_ostream &OS, int IndentationLevel) = 0;
NodeType Type; // Type of node
};
struct TextNode : public HTMLNode {
TextNode(const Twine &Text)
: HTMLNode(NodeType::NODE_TEXT), Text(Text.str()) {}
std::string Text; // Content of node
void Render(llvm::raw_ostream &OS, int IndentationLevel) override;
};
struct TagNode : public HTMLNode {
TagNode(HTMLTag Tag) : HTMLNode(NodeType::NODE_TAG), Tag(Tag) {}
TagNode(HTMLTag Tag, const Twine &Text) : TagNode(Tag) {
Children.emplace_back(std::make_unique<TextNode>(Text.str()));
}
HTMLTag Tag; // Name of HTML Tag (p, div, h1)
std::vector<std::unique_ptr<HTMLNode>> Children; // List of child nodes
std::vector<std::pair<std::string, std::string>>
Attributes; // List of key-value attributes for tag
void Render(llvm::raw_ostream &OS, int IndentationLevel) override;
};
constexpr const char *kDoctypeDecl = "<!DOCTYPE html>";
struct HTMLFile {
std::vector<std::unique_ptr<HTMLNode>> Children; // List of child nodes
void Render(llvm::raw_ostream &OS) {
OS << kDoctypeDecl << "\n";
for (const auto &C : Children) {
C->Render(OS, 0);
OS << "\n";
}
}
};
} // namespace
bool HTMLTag::IsSelfClosing() const {
switch (Value) {
case HTMLTag::TAG_META:
case HTMLTag::TAG_LINK:
return true;
case HTMLTag::TAG_A:
case HTMLTag::TAG_DIV:
case HTMLTag::TAG_FOOTER:
case HTMLTag::TAG_H1:
case HTMLTag::TAG_H2:
case HTMLTag::TAG_H3:
case HTMLTag::TAG_HEADER:
case HTMLTag::TAG_LI:
case HTMLTag::TAG_MAIN:
case HTMLTag::TAG_OL:
case HTMLTag::TAG_P:
case HTMLTag::TAG_SCRIPT:
case HTMLTag::TAG_SPAN:
case HTMLTag::TAG_TITLE:
case HTMLTag::TAG_UL:
return false;
}
llvm_unreachable("Unhandled HTMLTag::TagType");
}
llvm::SmallString<16> HTMLTag::ToString() const {
switch (Value) {
case HTMLTag::TAG_A:
return llvm::SmallString<16>("a");
case HTMLTag::TAG_DIV:
return llvm::SmallString<16>("div");
case HTMLTag::TAG_FOOTER:
return llvm::SmallString<16>("footer");
case HTMLTag::TAG_H1:
return llvm::SmallString<16>("h1");
case HTMLTag::TAG_H2:
return llvm::SmallString<16>("h2");
case HTMLTag::TAG_H3:
return llvm::SmallString<16>("h3");
case HTMLTag::TAG_HEADER:
return llvm::SmallString<16>("header");
case HTMLTag::TAG_LI:
return llvm::SmallString<16>("li");
case HTMLTag::TAG_LINK:
return llvm::SmallString<16>("link");
case HTMLTag::TAG_MAIN:
return llvm::SmallString<16>("main");
case HTMLTag::TAG_META:
return llvm::SmallString<16>("meta");
case HTMLTag::TAG_OL:
return llvm::SmallString<16>("ol");
case HTMLTag::TAG_P:
return llvm::SmallString<16>("p");
case HTMLTag::TAG_SCRIPT:
return llvm::SmallString<16>("script");
case HTMLTag::TAG_SPAN:
return llvm::SmallString<16>("span");
case HTMLTag::TAG_TITLE:
return llvm::SmallString<16>("title");
case HTMLTag::TAG_UL:
return llvm::SmallString<16>("ul");
}
llvm_unreachable("Unhandled HTMLTag::TagType");
}
void TextNode::Render(llvm::raw_ostream &OS, int IndentationLevel) {
OS.indent(IndentationLevel * 2);
printHTMLEscaped(Text, OS);
}
void TagNode::Render(llvm::raw_ostream &OS, int IndentationLevel) {
// Children nodes are rendered in the same line if all of them are text nodes
bool InlineChildren = true;
for (const auto &C : Children)
if (C->Type == NodeType::NODE_TAG) {
InlineChildren = false;
break;
}
OS.indent(IndentationLevel * 2);
OS << "<" << Tag.ToString();
for (const auto &A : Attributes)
OS << " " << A.first << "=\"" << A.second << "\"";
if (Tag.IsSelfClosing()) {
OS << "/>";
return;
}
OS << ">";
if (!InlineChildren)
OS << "\n";
bool NewLineRendered = true;
for (const auto &C : Children) {
int ChildrenIndentation =
InlineChildren || !NewLineRendered ? 0 : IndentationLevel + 1;
C->Render(OS, ChildrenIndentation);
if (!InlineChildren && (C == Children.back() ||
(C->Type != NodeType::NODE_TEXT ||
(&C + 1)->get()->Type != NodeType::NODE_TEXT))) {
OS << "\n";
NewLineRendered = true;
} else
NewLineRendered = false;
}
if (!InlineChildren)
OS.indent(IndentationLevel * 2);
OS << "</" << Tag.ToString() << ">";
}
template <typename Derived, typename Base,
typename = std::enable_if<std::is_base_of<Derived, Base>::value>>
static void AppendVector(std::vector<Derived> &&New,
std::vector<Base> &Original) {
std::move(New.begin(), New.end(), std::back_inserter(Original));
}
// Compute the relative path from an Origin directory to a Destination directory
static SmallString<128> computeRelativePath(StringRef Destination,
StringRef Origin) {
// If Origin is empty, the relative path to the Destination is its complete
// path.
if (Origin.empty())
return Destination;
// The relative path is an empty path if both directories are the same.
if (Destination == Origin)
return {};
// These iterators iterate through each of their parent directories
llvm::sys::path::const_iterator FileI = llvm::sys::path::begin(Destination);
llvm::sys::path::const_iterator FileE = llvm::sys::path::end(Destination);
llvm::sys::path::const_iterator DirI = llvm::sys::path::begin(Origin);
llvm::sys::path::const_iterator DirE = llvm::sys::path::end(Origin);
// Advance both iterators until the paths differ. Example:
// Destination = A/B/C/D
// Origin = A/B/E/F
// FileI will point to C and DirI to E. The directories behind them is the
// directory they share (A/B).
while (FileI != FileE && DirI != DirE && *FileI == *DirI) {
++FileI;
++DirI;
}
SmallString<128> Result; // This will hold the resulting path.
// Result has to go up one directory for each of the remaining directories in
// Origin
while (DirI != DirE) {
llvm::sys::path::append(Result, "..");
++DirI;
}
// Result has to append each of the remaining directories in Destination
while (FileI != FileE) {
llvm::sys::path::append(Result, *FileI);
++FileI;
}
return Result;
}
// HTML generation
static std::vector<std::unique_ptr<TagNode>>
genStylesheetsHTML(StringRef InfoPath, const ClangDocContext &CDCtx) {
std::vector<std::unique_ptr<TagNode>> Out;
for (const auto &FilePath : CDCtx.UserStylesheets) {
auto LinkNode = std::make_unique<TagNode>(HTMLTag::TAG_LINK);
LinkNode->Attributes.emplace_back("rel", "stylesheet");
SmallString<128> StylesheetPath = computeRelativePath("", InfoPath);
llvm::sys::path::append(StylesheetPath,
llvm::sys::path::filename(FilePath));
// Paths in HTML must be in posix-style
llvm::sys::path::native(StylesheetPath, llvm::sys::path::Style::posix);
LinkNode->Attributes.emplace_back("href", std::string(StylesheetPath.str()));
Out.emplace_back(std::move(LinkNode));
}
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genJsScriptsHTML(StringRef InfoPath, const ClangDocContext &CDCtx) {
std::vector<std::unique_ptr<TagNode>> Out;
for (const auto &FilePath : CDCtx.JsScripts) {
auto ScriptNode = std::make_unique<TagNode>(HTMLTag::TAG_SCRIPT);
SmallString<128> ScriptPath = computeRelativePath("", InfoPath);
llvm::sys::path::append(ScriptPath, llvm::sys::path::filename(FilePath));
// Paths in HTML must be in posix-style
llvm::sys::path::native(ScriptPath, llvm::sys::path::Style::posix);
ScriptNode->Attributes.emplace_back("src", std::string(ScriptPath.str()));
Out.emplace_back(std::move(ScriptNode));
}
return Out;
}
static std::unique_ptr<TagNode> genLink(const Twine &Text, const Twine &Link) {
auto LinkNode = std::make_unique<TagNode>(HTMLTag::TAG_A, Text);
LinkNode->Attributes.emplace_back("href", Link.str());
return LinkNode;
}
static std::unique_ptr<HTMLNode>
genReference(const Reference &Type, StringRef CurrentDirectory,
std::optional<StringRef> JumpToSection = std::nullopt) {
if (Type.Path.empty()) {
if (!JumpToSection)
return std::make_unique<TextNode>(Type.Name);
else
return genLink(Type.Name, "#" + *JumpToSection);
}
llvm::SmallString<64> Path = Type.getRelativeFilePath(CurrentDirectory);
llvm::sys::path::append(Path, Type.getFileBaseName() + ".html");
// Paths in HTML must be in posix-style
llvm::sys::path::native(Path, llvm::sys::path::Style::posix);
if (JumpToSection)
Path += ("#" + *JumpToSection).str();
return genLink(Type.Name, Path);
}
static std::vector<std::unique_ptr<HTMLNode>>
genReferenceList(const llvm::SmallVectorImpl<Reference> &Refs,
const StringRef &CurrentDirectory) {
std::vector<std::unique_ptr<HTMLNode>> Out;
for (const auto &R : Refs) {
if (&R != Refs.begin())
Out.emplace_back(std::make_unique<TextNode>(", "));
Out.emplace_back(genReference(R, CurrentDirectory));
}
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const EnumInfo &I, const ClangDocContext &CDCtx);
static std::vector<std::unique_ptr<TagNode>>
genHTML(const FunctionInfo &I, const ClangDocContext &CDCtx,
StringRef ParentInfoDir);
static std::vector<std::unique_ptr<TagNode>>
genEnumsBlock(const std::vector<EnumInfo> &Enums,
const ClangDocContext &CDCtx) {
if (Enums.empty())
return {};
std::vector<std::unique_ptr<TagNode>> Out;
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_H2, "Enums"));
Out.back()->Attributes.emplace_back("id", "Enums");
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_DIV));
auto &DivBody = Out.back();
for (const auto &E : Enums) {
std::vector<std::unique_ptr<TagNode>> Nodes = genHTML(E, CDCtx);
AppendVector(std::move(Nodes), DivBody->Children);
}
return Out;
}
static std::unique_ptr<TagNode>
genEnumMembersBlock(const llvm::SmallVector<EnumValueInfo, 4> &Members) {
if (Members.empty())
return nullptr;
auto List = std::make_unique<TagNode>(HTMLTag::TAG_UL);
for (const auto &M : Members)
List->Children.emplace_back(
std::make_unique<TagNode>(HTMLTag::TAG_LI, M.Name));
return List;
}
static std::vector<std::unique_ptr<TagNode>>
genFunctionsBlock(const std::vector<FunctionInfo> &Functions,
const ClangDocContext &CDCtx, StringRef ParentInfoDir) {
if (Functions.empty())
return {};
std::vector<std::unique_ptr<TagNode>> Out;
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_H2, "Functions"));
Out.back()->Attributes.emplace_back("id", "Functions");
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_DIV));
auto &DivBody = Out.back();
for (const auto &F : Functions) {
std::vector<std::unique_ptr<TagNode>> Nodes =
genHTML(F, CDCtx, ParentInfoDir);
AppendVector(std::move(Nodes), DivBody->Children);
}
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genRecordMembersBlock(const llvm::SmallVector<MemberTypeInfo, 4> &Members,
StringRef ParentInfoDir) {
if (Members.empty())
return {};
std::vector<std::unique_ptr<TagNode>> Out;
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_H2, "Members"));
Out.back()->Attributes.emplace_back("id", "Members");
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_UL));
auto &ULBody = Out.back();
for (const auto &M : Members) {
std::string Access = getAccessSpelling(M.Access).str();
if (Access != "")
Access = Access + " ";
auto LIBody = std::make_unique<TagNode>(HTMLTag::TAG_LI);
LIBody->Children.emplace_back(std::make_unique<TextNode>(Access));
LIBody->Children.emplace_back(genReference(M.Type, ParentInfoDir));
LIBody->Children.emplace_back(std::make_unique<TextNode>(" " + M.Name));
ULBody->Children.emplace_back(std::move(LIBody));
}
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genReferencesBlock(const std::vector<Reference> &References,
llvm::StringRef Title, StringRef ParentPath) {
if (References.empty())
return {};
std::vector<std::unique_ptr<TagNode>> Out;
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_H2, Title));
Out.back()->Attributes.emplace_back("id", std::string(Title));
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_UL));
auto &ULBody = Out.back();
for (const auto &R : References) {
auto LiNode = std::make_unique<TagNode>(HTMLTag::TAG_LI);
LiNode->Children.emplace_back(genReference(R, ParentPath));
ULBody->Children.emplace_back(std::move(LiNode));
}
return Out;
}
static std::unique_ptr<TagNode>
writeFileDefinition(const Location &L,
std::optional<StringRef> RepositoryUrl = std::nullopt) {
if (!L.IsFileInRootDir || !RepositoryUrl)
return std::make_unique<TagNode>(
HTMLTag::TAG_P, "Defined at line " + std::to_string(L.LineNumber) +
" of file " + L.Filename);
SmallString<128> FileURL(*RepositoryUrl);
llvm::sys::path::append(FileURL, llvm::sys::path::Style::posix, L.Filename);
auto Node = std::make_unique<TagNode>(HTMLTag::TAG_P);
Node->Children.emplace_back(std::make_unique<TextNode>("Defined at line "));
auto LocNumberNode =
std::make_unique<TagNode>(HTMLTag::TAG_A, std::to_string(L.LineNumber));
// The links to a specific line in the source code use the github /
// googlesource notation so it won't work for all hosting pages.
LocNumberNode->Attributes.emplace_back(
"href", (FileURL + "#" + std::to_string(L.LineNumber)).str());
Node->Children.emplace_back(std::move(LocNumberNode));
Node->Children.emplace_back(std::make_unique<TextNode>(" of file "));
auto LocFileNode = std::make_unique<TagNode>(
HTMLTag::TAG_A, llvm::sys::path::filename(FileURL));
LocFileNode->Attributes.emplace_back("href", std::string(FileURL.str()));
Node->Children.emplace_back(std::move(LocFileNode));
return Node;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const Index &Index, StringRef InfoPath, bool IsOutermostList);
// Generates a list of child nodes for the HTML head tag
// It contains a meta node, link nodes to import CSS files, and script nodes to
// import JS files
static std::vector<std::unique_ptr<TagNode>>
genFileHeadNodes(StringRef Title, StringRef InfoPath,
const ClangDocContext &CDCtx) {
std::vector<std::unique_ptr<TagNode>> Out;
auto MetaNode = std::make_unique<TagNode>(HTMLTag::TAG_META);
MetaNode->Attributes.emplace_back("charset", "utf-8");
Out.emplace_back(std::move(MetaNode));
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_TITLE, Title));
std::vector<std::unique_ptr<TagNode>> StylesheetsNodes =
genStylesheetsHTML(InfoPath, CDCtx);
AppendVector(std::move(StylesheetsNodes), Out);
std::vector<std::unique_ptr<TagNode>> JsNodes =
genJsScriptsHTML(InfoPath, CDCtx);
AppendVector(std::move(JsNodes), Out);
return Out;
}
// Generates a header HTML node that can be used for any file
// It contains the project name
static std::unique_ptr<TagNode> genFileHeaderNode(StringRef ProjectName) {
auto HeaderNode = std::make_unique<TagNode>(HTMLTag::TAG_HEADER, ProjectName);
HeaderNode->Attributes.emplace_back("id", "project-title");
return HeaderNode;
}
// Generates a main HTML node that has all the main content of an info file
// It contains both indexes and the info's documented information
// This function should only be used for the info files (not for the file that
// only has the general index)
static std::unique_ptr<TagNode> genInfoFileMainNode(
StringRef InfoPath,
std::vector<std::unique_ptr<TagNode>> &MainContentInnerNodes,
const Index &InfoIndex) {
auto MainNode = std::make_unique<TagNode>(HTMLTag::TAG_MAIN);
auto LeftSidebarNode = std::make_unique<TagNode>(HTMLTag::TAG_DIV);
LeftSidebarNode->Attributes.emplace_back("id", "sidebar-left");
LeftSidebarNode->Attributes.emplace_back("path", std::string(InfoPath));
LeftSidebarNode->Attributes.emplace_back(
"class", "col-xs-6 col-sm-3 col-md-2 sidebar sidebar-offcanvas-left");
auto MainContentNode = std::make_unique<TagNode>(HTMLTag::TAG_DIV);
MainContentNode->Attributes.emplace_back("id", "main-content");
MainContentNode->Attributes.emplace_back(
"class", "col-xs-12 col-sm-9 col-md-8 main-content");
AppendVector(std::move(MainContentInnerNodes), MainContentNode->Children);
auto RightSidebarNode = std::make_unique<TagNode>(HTMLTag::TAG_DIV);
RightSidebarNode->Attributes.emplace_back("id", "sidebar-right");
RightSidebarNode->Attributes.emplace_back(
"class", "col-xs-6 col-sm-6 col-md-2 sidebar sidebar-offcanvas-right");
std::vector<std::unique_ptr<TagNode>> InfoIndexHTML =
genHTML(InfoIndex, InfoPath, true);
AppendVector(std::move(InfoIndexHTML), RightSidebarNode->Children);
MainNode->Children.emplace_back(std::move(LeftSidebarNode));
MainNode->Children.emplace_back(std::move(MainContentNode));
MainNode->Children.emplace_back(std::move(RightSidebarNode));
return MainNode;
}
// Generates a footer HTML node that can be used for any file
// It contains clang-doc's version
static std::unique_ptr<TagNode> genFileFooterNode() {
auto FooterNode = std::make_unique<TagNode>(HTMLTag::TAG_FOOTER);
auto SpanNode = std::make_unique<TagNode>(
HTMLTag::TAG_SPAN, clang::getClangToolFullVersion("clang-doc"));
SpanNode->Attributes.emplace_back("class", "no-break");
FooterNode->Children.emplace_back(std::move(SpanNode));
return FooterNode;
}
// Generates a complete HTMLFile for an Info
static HTMLFile
genInfoFile(StringRef Title, StringRef InfoPath,
std::vector<std::unique_ptr<TagNode>> &MainContentNodes,
const Index &InfoIndex, const ClangDocContext &CDCtx) {
HTMLFile F;
std::vector<std::unique_ptr<TagNode>> HeadNodes =
genFileHeadNodes(Title, InfoPath, CDCtx);
std::unique_ptr<TagNode> HeaderNode = genFileHeaderNode(CDCtx.ProjectName);
std::unique_ptr<TagNode> MainNode =
genInfoFileMainNode(InfoPath, MainContentNodes, InfoIndex);
std::unique_ptr<TagNode> FooterNode = genFileFooterNode();
AppendVector(std::move(HeadNodes), F.Children);
F.Children.emplace_back(std::move(HeaderNode));
F.Children.emplace_back(std::move(MainNode));
F.Children.emplace_back(std::move(FooterNode));
return F;
}
template <typename T,
typename = std::enable_if<std::is_base_of<T, Info>::value>>
static Index genInfoIndexItem(const std::vector<T> &Infos, StringRef Title) {
Index Idx(Title, Title);
for (const auto &C : Infos)
Idx.Children.emplace_back(C.extractName(),
llvm::toHex(llvm::toStringRef(C.USR)));
return Idx;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const Index &Index, StringRef InfoPath, bool IsOutermostList) {
std::vector<std::unique_ptr<TagNode>> Out;
if (!Index.Name.empty()) {
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_SPAN));
auto &SpanBody = Out.back();
if (!Index.JumpToSection)
SpanBody->Children.emplace_back(genReference(Index, InfoPath));
else
SpanBody->Children.emplace_back(
genReference(Index, InfoPath, Index.JumpToSection->str()));
}
if (Index.Children.empty())
return Out;
// Only the outermost list should use ol, the others should use ul
HTMLTag ListHTMLTag = IsOutermostList ? HTMLTag::TAG_OL : HTMLTag::TAG_UL;
Out.emplace_back(std::make_unique<TagNode>(ListHTMLTag));
const auto &UlBody = Out.back();
for (const auto &C : Index.Children) {
auto LiBody = std::make_unique<TagNode>(HTMLTag::TAG_LI);
std::vector<std::unique_ptr<TagNode>> Nodes = genHTML(C, InfoPath, false);
AppendVector(std::move(Nodes), LiBody->Children);
UlBody->Children.emplace_back(std::move(LiBody));
}
return Out;
}
static std::unique_ptr<HTMLNode> genHTML(const CommentInfo &I) {
if (I.Kind == "FullComment") {
auto FullComment = std::make_unique<TagNode>(HTMLTag::TAG_DIV);
for (const auto &Child : I.Children) {
std::unique_ptr<HTMLNode> Node = genHTML(*Child);
if (Node)
FullComment->Children.emplace_back(std::move(Node));
}
return std::move(FullComment);
} else if (I.Kind == "ParagraphComment") {
auto ParagraphComment = std::make_unique<TagNode>(HTMLTag::TAG_P);
for (const auto &Child : I.Children) {
std::unique_ptr<HTMLNode> Node = genHTML(*Child);
if (Node)
ParagraphComment->Children.emplace_back(std::move(Node));
}
if (ParagraphComment->Children.empty())
return nullptr;
return std::move(ParagraphComment);
} else if (I.Kind == "TextComment") {
if (I.Text == "")
return nullptr;
return std::make_unique<TextNode>(I.Text);
}
return nullptr;
}
static std::unique_ptr<TagNode> genHTML(const std::vector<CommentInfo> &C) {
auto CommentBlock = std::make_unique<TagNode>(HTMLTag::TAG_DIV);
for (const auto &Child : C) {
if (std::unique_ptr<HTMLNode> Node = genHTML(Child))
CommentBlock->Children.emplace_back(std::move(Node));
}
return CommentBlock;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const EnumInfo &I, const ClangDocContext &CDCtx) {
std::vector<std::unique_ptr<TagNode>> Out;
std::string EnumType;
if (I.Scoped)
EnumType = "enum class ";
else
EnumType = "enum ";
Out.emplace_back(
std::make_unique<TagNode>(HTMLTag::TAG_H3, EnumType + I.Name));
Out.back()->Attributes.emplace_back("id",
llvm::toHex(llvm::toStringRef(I.USR)));
std::unique_ptr<TagNode> Node = genEnumMembersBlock(I.Members);
if (Node)
Out.emplace_back(std::move(Node));
if (I.DefLoc) {
if (!CDCtx.RepositoryUrl)
Out.emplace_back(writeFileDefinition(*I.DefLoc));
else
Out.emplace_back(writeFileDefinition(
*I.DefLoc, StringRef{*CDCtx.RepositoryUrl}));
}
std::string Description;
if (!I.Description.empty())
Out.emplace_back(genHTML(I.Description));
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const FunctionInfo &I, const ClangDocContext &CDCtx,
StringRef ParentInfoDir) {
std::vector<std::unique_ptr<TagNode>> Out;
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_H3, I.Name));
// USR is used as id for functions instead of name to disambiguate function
// overloads.
Out.back()->Attributes.emplace_back("id",
llvm::toHex(llvm::toStringRef(I.USR)));
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_P));
auto &FunctionHeader = Out.back();
std::string Access = getAccessSpelling(I.Access).str();
if (Access != "")
FunctionHeader->Children.emplace_back(
std::make_unique<TextNode>(Access + " "));
if (I.ReturnType.Type.Name != "") {
FunctionHeader->Children.emplace_back(
genReference(I.ReturnType.Type, ParentInfoDir));
FunctionHeader->Children.emplace_back(std::make_unique<TextNode>(" "));
}
FunctionHeader->Children.emplace_back(
std::make_unique<TextNode>(I.Name + "("));
for (const auto &P : I.Params) {
if (&P != I.Params.begin())
FunctionHeader->Children.emplace_back(std::make_unique<TextNode>(", "));
FunctionHeader->Children.emplace_back(genReference(P.Type, ParentInfoDir));
FunctionHeader->Children.emplace_back(
std::make_unique<TextNode>(" " + P.Name));
}
FunctionHeader->Children.emplace_back(std::make_unique<TextNode>(")"));
if (I.DefLoc) {
if (!CDCtx.RepositoryUrl)
Out.emplace_back(writeFileDefinition(*I.DefLoc));
else
Out.emplace_back(writeFileDefinition(
*I.DefLoc, StringRef{*CDCtx.RepositoryUrl}));
}
std::string Description;
if (!I.Description.empty())
Out.emplace_back(genHTML(I.Description));
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const NamespaceInfo &I, Index &InfoIndex, const ClangDocContext &CDCtx,
std::string &InfoTitle) {
std::vector<std::unique_ptr<TagNode>> Out;
if (I.Name.str() == "")
InfoTitle = "Global Namespace";
else
InfoTitle = ("namespace " + I.Name).str();
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_H1, InfoTitle));
std::string Description;
if (!I.Description.empty())
Out.emplace_back(genHTML(I.Description));
llvm::SmallString<64> BasePath = I.getRelativeFilePath("");
std::vector<std::unique_ptr<TagNode>> ChildNamespaces =
genReferencesBlock(I.Children.Namespaces, "Namespaces", BasePath);
AppendVector(std::move(ChildNamespaces), Out);
std::vector<std::unique_ptr<TagNode>> ChildRecords =
genReferencesBlock(I.Children.Records, "Records", BasePath);
AppendVector(std::move(ChildRecords), Out);
std::vector<std::unique_ptr<TagNode>> ChildFunctions =
genFunctionsBlock(I.Children.Functions, CDCtx, BasePath);
AppendVector(std::move(ChildFunctions), Out);
std::vector<std::unique_ptr<TagNode>> ChildEnums =
genEnumsBlock(I.Children.Enums, CDCtx);
AppendVector(std::move(ChildEnums), Out);
if (!I.Children.Namespaces.empty())
InfoIndex.Children.emplace_back("Namespaces", "Namespaces");
if (!I.Children.Records.empty())
InfoIndex.Children.emplace_back("Records", "Records");
if (!I.Children.Functions.empty())
InfoIndex.Children.emplace_back(
genInfoIndexItem(I.Children.Functions, "Functions"));
if (!I.Children.Enums.empty())
InfoIndex.Children.emplace_back(
genInfoIndexItem(I.Children.Enums, "Enums"));
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const RecordInfo &I, Index &InfoIndex, const ClangDocContext &CDCtx,
std::string &InfoTitle) {
std::vector<std::unique_ptr<TagNode>> Out;
InfoTitle = (getTagType(I.TagType) + " " + I.Name).str();
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_H1, InfoTitle));
if (I.DefLoc) {
if (!CDCtx.RepositoryUrl)
Out.emplace_back(writeFileDefinition(*I.DefLoc));
else
Out.emplace_back(writeFileDefinition(
*I.DefLoc, StringRef{*CDCtx.RepositoryUrl}));
}
std::string Description;
if (!I.Description.empty())
Out.emplace_back(genHTML(I.Description));
std::vector<std::unique_ptr<HTMLNode>> Parents =
genReferenceList(I.Parents, I.Path);
std::vector<std::unique_ptr<HTMLNode>> VParents =
genReferenceList(I.VirtualParents, I.Path);
if (!Parents.empty() || !VParents.empty()) {
Out.emplace_back(std::make_unique<TagNode>(HTMLTag::TAG_P));
auto &PBody = Out.back();
PBody->Children.emplace_back(std::make_unique<TextNode>("Inherits from "));
if (Parents.empty())
AppendVector(std::move(VParents), PBody->Children);
else if (VParents.empty())
AppendVector(std::move(Parents), PBody->Children);
else {
AppendVector(std::move(Parents), PBody->Children);
PBody->Children.emplace_back(std::make_unique<TextNode>(", "));
AppendVector(std::move(VParents), PBody->Children);
}
}
std::vector<std::unique_ptr<TagNode>> Members =
genRecordMembersBlock(I.Members, I.Path);
AppendVector(std::move(Members), Out);
std::vector<std::unique_ptr<TagNode>> ChildRecords =
genReferencesBlock(I.Children.Records, "Records", I.Path);
AppendVector(std::move(ChildRecords), Out);
std::vector<std::unique_ptr<TagNode>> ChildFunctions =
genFunctionsBlock(I.Children.Functions, CDCtx, I.Path);
AppendVector(std::move(ChildFunctions), Out);
std::vector<std::unique_ptr<TagNode>> ChildEnums =
genEnumsBlock(I.Children.Enums, CDCtx);
AppendVector(std::move(ChildEnums), Out);
if (!I.Members.empty())
InfoIndex.Children.emplace_back("Members", "Members");
if (!I.Children.Records.empty())
InfoIndex.Children.emplace_back("Records", "Records");
if (!I.Children.Functions.empty())
InfoIndex.Children.emplace_back(
genInfoIndexItem(I.Children.Functions, "Functions"));
if (!I.Children.Enums.empty())
InfoIndex.Children.emplace_back(
genInfoIndexItem(I.Children.Enums, "Enums"));
return Out;
}
static std::vector<std::unique_ptr<TagNode>>
genHTML(const TypedefInfo &I, const ClangDocContext &CDCtx,
std::string &InfoTitle) {
// TODO support typedefs in HTML.
return {};
}
/// Generator for HTML documentation.
class HTMLGenerator : public Generator {
public:
static const char *Format;
llvm::Error generateDocs(StringRef RootDir,
llvm::StringMap<std::unique_ptr<doc::Info>> Infos,
const ClangDocContext &CDCtx) override;
llvm::Error createResources(ClangDocContext &CDCtx) override;
llvm::Error generateDocForInfo(Info *I, llvm::raw_ostream &OS,
const ClangDocContext &CDCtx) override;
};
const char *HTMLGenerator::Format = "html";
llvm::Error
HTMLGenerator::generateDocs(StringRef RootDir,
llvm::StringMap<std::unique_ptr<doc::Info>> Infos,
const ClangDocContext &CDCtx) {
// Track which directories we already tried to create.
llvm::StringSet<> CreatedDirs;
// Collect all output by file name and create the nexessary directories.
llvm::StringMap<std::vector<doc::Info *>> FileToInfos;
for (const auto &Group : Infos) {
doc::Info *Info = Group.getValue().get();
llvm::SmallString<128> Path;
llvm::sys::path::native(RootDir, Path);
llvm::sys::path::append(Path, Info->getRelativeFilePath(""));
if (CreatedDirs.find(Path) == CreatedDirs.end()) {
if (std::error_code Err = llvm::sys::fs::create_directories(Path);
Err != std::error_code()) {
return llvm::createStringError(Err, "Failed to create directory '%s'.",
Path.c_str());
}
CreatedDirs.insert(Path);
}
llvm::sys::path::append(Path, Info->getFileBaseName() + ".html");
FileToInfos[Path].push_back(Info);
}
for (const auto &Group : FileToInfos) {
std::error_code FileErr;
llvm::raw_fd_ostream InfoOS(Group.getKey(), FileErr,
llvm::sys::fs::OF_None);
if (FileErr) {
return llvm::createStringError(FileErr, "Error opening file '%s'",
Group.getKey().str().c_str());
}
// TODO: https://github.com/llvm/llvm-project/issues/59073
// If there are multiple Infos for this file name (for example, template
// specializations), this will generate multiple complete web pages (with
// <DOCTYPE> and <title>, etc.) concatenated together. This generator needs
// some refactoring to be able to output the headers separately from the
// contents.
for (const auto &Info : Group.getValue()) {
if (llvm::Error Err = generateDocForInfo(Info, InfoOS, CDCtx)) {
return Err;
}
}
}
return llvm::Error::success();
}
llvm::Error HTMLGenerator::generateDocForInfo(Info *I, llvm::raw_ostream &OS,
const ClangDocContext &CDCtx) {
std::string InfoTitle;
std::vector<std::unique_ptr<TagNode>> MainContentNodes;
Index InfoIndex;
switch (I->IT) {
case InfoType::IT_namespace:
MainContentNodes = genHTML(*static_cast<clang::doc::NamespaceInfo *>(I),
InfoIndex, CDCtx, InfoTitle);
break;
case InfoType::IT_record:
MainContentNodes = genHTML(*static_cast<clang::doc::RecordInfo *>(I),
InfoIndex, CDCtx, InfoTitle);
break;
case InfoType::IT_enum:
MainContentNodes = genHTML(*static_cast<clang::doc::EnumInfo *>(I), CDCtx);
break;
case InfoType::IT_function:
MainContentNodes =
genHTML(*static_cast<clang::doc::FunctionInfo *>(I), CDCtx, "");
break;
case InfoType::IT_typedef:
MainContentNodes =
genHTML(*static_cast<clang::doc::TypedefInfo *>(I), CDCtx, InfoTitle);
break;
case InfoType::IT_default:
return llvm::createStringError(llvm::inconvertibleErrorCode(),
"unexpected info type");
}
HTMLFile F = genInfoFile(InfoTitle, I->getRelativeFilePath(""),
MainContentNodes, InfoIndex, CDCtx);
F.Render(OS);
return llvm::Error::success();
}
static std::string getRefType(InfoType IT) {
switch (IT) {
case InfoType::IT_default:
return "default";
case InfoType::IT_namespace:
return "namespace";
case InfoType::IT_record:
return "record";
case InfoType::IT_function:
return "function";
case InfoType::IT_enum:
return "enum";
case InfoType::IT_typedef:
return "typedef";
}
llvm_unreachable("Unknown InfoType");
}
static llvm::Error SerializeIndex(ClangDocContext &CDCtx) {
std::error_code OK;
std::error_code FileErr;
llvm::SmallString<128> FilePath;
llvm::sys::path::native(CDCtx.OutDirectory, FilePath);
llvm::sys::path::append(FilePath, "index_json.js");
llvm::raw_fd_ostream OS(FilePath, FileErr, llvm::sys::fs::OF_None);
if (FileErr != OK) {
return llvm::createStringError(llvm::inconvertibleErrorCode(),
"error creating index file: " +
FileErr.message());
}
CDCtx.Idx.sort();
llvm::json::OStream J(OS, 2);
std::function<void(Index)> IndexToJSON = [&](const Index &I) {
J.object([&] {
J.attribute("USR", toHex(llvm::toStringRef(I.USR)));
J.attribute("Name", I.Name);
J.attribute("RefType", getRefType(I.RefType));
J.attribute("Path", I.getRelativeFilePath(""));
J.attributeArray("Children", [&] {
for (const Index &C : I.Children)
IndexToJSON(C);
});
});
};
OS << "var JsonIndex = `\n";
IndexToJSON(CDCtx.Idx);
OS << "`;\n";
return llvm::Error::success();
}
// Generates a main HTML node that has the main content of the file that shows
// only the general index
// It contains the general index with links to all the generated files
static std::unique_ptr<TagNode> genIndexFileMainNode() {
auto MainNode = std::make_unique<TagNode>(HTMLTag::TAG_MAIN);
auto LeftSidebarNode = std::make_unique<TagNode>(HTMLTag::TAG_DIV);
LeftSidebarNode->Attributes.emplace_back("id", "sidebar-left");
LeftSidebarNode->Attributes.emplace_back("path", "");
LeftSidebarNode->Attributes.emplace_back(
"class", "col-xs-6 col-sm-3 col-md-2 sidebar sidebar-offcanvas-left");
LeftSidebarNode->Attributes.emplace_back("style", "flex: 0 100%;");
MainNode->Children.emplace_back(std::move(LeftSidebarNode));
return MainNode;
}
static llvm::Error GenIndex(const ClangDocContext &CDCtx) {
std::error_code FileErr, OK;
llvm::SmallString<128> IndexPath;
llvm::sys::path::native(CDCtx.OutDirectory, IndexPath);
llvm::sys::path::append(IndexPath, "index.html");
llvm::raw_fd_ostream IndexOS(IndexPath, FileErr, llvm::sys::fs::OF_None);
if (FileErr != OK) {
return llvm::createStringError(llvm::inconvertibleErrorCode(),
"error creating main index: " +
FileErr.message());
}
HTMLFile F;
std::vector<std::unique_ptr<TagNode>> HeadNodes =
genFileHeadNodes("Index", "", CDCtx);
std::unique_ptr<TagNode> HeaderNode = genFileHeaderNode(CDCtx.ProjectName);
std::unique_ptr<TagNode> MainNode = genIndexFileMainNode();
std::unique_ptr<TagNode> FooterNode = genFileFooterNode();
AppendVector(std::move(HeadNodes), F.Children);
F.Children.emplace_back(std::move(HeaderNode));
F.Children.emplace_back(std::move(MainNode));
F.Children.emplace_back(std::move(FooterNode));
F.Render(IndexOS);
return llvm::Error::success();
}
static llvm::Error CopyFile(StringRef FilePath, StringRef OutDirectory) {
llvm::SmallString<128> PathWrite;
llvm::sys::path::native(OutDirectory, PathWrite);
llvm::sys::path::append(PathWrite, llvm::sys::path::filename(FilePath));
llvm::SmallString<128> PathRead;
llvm::sys::path::native(FilePath, PathRead);
std::error_code OK;
std::error_code FileErr = llvm::sys::fs::copy_file(PathRead, PathWrite);
if (FileErr != OK) {
return llvm::createStringError(llvm::inconvertibleErrorCode(),
"error creating file " +
llvm::sys::path::filename(FilePath) +
": " + FileErr.message() + "\n");
}
return llvm::Error::success();
}
llvm::Error HTMLGenerator::createResources(ClangDocContext &CDCtx) {
auto Err = SerializeIndex(CDCtx);
if (Err)
return Err;
Err = GenIndex(CDCtx);
if (Err)
return Err;
for (const auto &FilePath : CDCtx.UserStylesheets) {
Err = CopyFile(FilePath, CDCtx.OutDirectory);
if (Err)
return Err;
}
for (const auto &FilePath : CDCtx.FilesToCopy) {
Err = CopyFile(FilePath, CDCtx.OutDirectory);
if (Err)
return Err;
}
return llvm::Error::success();
}
static GeneratorRegistry::Add<HTMLGenerator> HTML(HTMLGenerator::Format,
"Generator for HTML output.");
// This anchor is used to force the linker to link in the generated object
// file and thus register the generator.
volatile int HTMLGeneratorAnchorSource = 0;
} // namespace doc
} // namespace clang
|
