forked from microsoft/TypeScript
-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathparser.ts
More file actions
9967 lines (8952 loc) · 529 KB
/
parser.ts
File metadata and controls
9967 lines (8952 loc) · 529 KB
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
namespace ts {
const enum SignatureFlags {
None = 0,
Yield = 1 << 0,
Await = 1 << 1,
Type = 1 << 2,
IgnoreMissingOpenBrace = 1 << 4,
JSDoc = 1 << 5,
}
const enum SpeculationKind {
TryParse,
Lookahead,
Reparse
}
let NodeConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let TokenConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let IdentifierConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let PrivateIdentifierConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let SourceFileConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
/**
* NOTE: You should not use this, it is only exported to support `createNode` in `~/src/deprecatedCompat/deprecations.ts`.
*/
/* @internal */
export const parseBaseNodeFactory: BaseNodeFactory = {
createBaseSourceFileNode: kind => new (SourceFileConstructor || (SourceFileConstructor = objectAllocator.getSourceFileConstructor()))(kind, -1, -1),
createBaseIdentifierNode: kind => new (IdentifierConstructor || (IdentifierConstructor = objectAllocator.getIdentifierConstructor()))(kind, -1, -1),
createBasePrivateIdentifierNode: kind => new (PrivateIdentifierConstructor || (PrivateIdentifierConstructor = objectAllocator.getPrivateIdentifierConstructor()))(kind, -1, -1),
createBaseTokenNode: kind => new (TokenConstructor || (TokenConstructor = objectAllocator.getTokenConstructor()))(kind, -1, -1),
createBaseNode: kind => new (NodeConstructor || (NodeConstructor = objectAllocator.getNodeConstructor()))(kind, -1, -1),
};
/* @internal */
export const parseNodeFactory = createNodeFactory(NodeFactoryFlags.NoParenthesizerRules, parseBaseNodeFactory);
function visitNode<T>(cbNode: (node: Node) => T, node: Node | undefined): T | undefined {
return node && cbNode(node);
}
function visitNodes<T>(cbNode: (node: Node) => T, cbNodes: ((node: NodeArray<Node>) => T | undefined) | undefined, nodes: NodeArray<Node> | undefined): T | undefined {
if (nodes) {
if (cbNodes) {
return cbNodes(nodes);
}
for (const node of nodes) {
const result = cbNode(node);
if (result) {
return result;
}
}
}
}
/*@internal*/
export function isJSDocLikeText(text: string, start: number) {
return text.charCodeAt(start + 1) === CharacterCodes.asterisk &&
text.charCodeAt(start + 2) === CharacterCodes.asterisk &&
text.charCodeAt(start + 3) !== CharacterCodes.slash;
}
/*@internal*/
export function isFileProbablyExternalModule(sourceFile: SourceFile) {
// Try to use the first top-level import/export when available, then
// fall back to looking for an 'import.meta' somewhere in the tree if necessary.
return forEach(sourceFile.statements, isAnExternalModuleIndicatorNode) ||
getImportMetaIfNecessary(sourceFile);
}
function isAnExternalModuleIndicatorNode(node: Node) {
return canHaveModifiers(node) && hasModifierOfKind(node, SyntaxKind.ExportKeyword)
|| isImportEqualsDeclaration(node) && isExternalModuleReference(node.moduleReference)
|| isImportDeclaration(node)
|| isExportAssignment(node)
|| isExportDeclaration(node) ? node : undefined;
}
function getImportMetaIfNecessary(sourceFile: SourceFile) {
return sourceFile.flags & NodeFlags.PossiblyContainsImportMeta ?
walkTreeForImportMeta(sourceFile) :
undefined;
}
function walkTreeForImportMeta(node: Node): Node | undefined {
return isImportMeta(node) ? node : forEachChild(node, walkTreeForImportMeta);
}
/** Do not use hasModifier inside the parser; it relies on parent pointers. Use this instead. */
function hasModifierOfKind(node: HasModifiers, kind: SyntaxKind) {
return some(node.modifiers, m => m.kind === kind);
}
function isImportMeta(node: Node): boolean {
return isMetaProperty(node) && node.keywordToken === SyntaxKind.ImportKeyword && node.name.escapedText === "meta";
}
type ForEachChildFunction<TNode> = <T>(node: TNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined) => T | undefined;
type ForEachChildTable = { [TNode in ForEachChildNodes as TNode["kind"]]: ForEachChildFunction<TNode> };
const forEachChildTable: ForEachChildTable = {
[SyntaxKind.QualifiedName]: function forEachChildInQualifiedName<T>(node: QualifiedName, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.left) ||
visitNode(cbNode, node.right);
},
[SyntaxKind.TypeParameter]: function forEachChildInTypeParameter<T>(node: TypeParameterDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.constraint) ||
visitNode(cbNode, node.default) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.ShorthandPropertyAssignment]: function forEachChildInShorthandPropertyAssignment<T>(node: ShorthandPropertyAssignment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.equalsToken) ||
visitNode(cbNode, node.objectAssignmentInitializer);
},
[SyntaxKind.SpreadAssignment]: function forEachChildInSpreadAssignment<T>(node: SpreadAssignment, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.Parameter]: function forEachChildInParameter<T>(node: ParameterDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.PropertyDeclaration]: function forEachChildInPropertyDeclaration<T>(node: PropertyDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.PropertySignature]: function forEachChildInPropertySignature<T>(node: PropertySignature, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.PropertyAssignment]: function forEachChildInPropertyAssignment<T>(node: PropertyAssignment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.VariableDeclaration]: function forEachChildInVariableDeclaration<T>(node: VariableDeclaration, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.BindingElement]: function forEachChildInBindingElement<T>(node: BindingElement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.propertyName) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.IndexSignature]: function forEachChildInIndexSignature<T>(node: IndexSignatureDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.ConstructorType]: function forEachChildInConstructorType<T>(node: ConstructorTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.FunctionType]: function forEachChildInFunctionType<T>(node: FunctionTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.CallSignature]: forEachChildInCallOrConstructSignature,
[SyntaxKind.ConstructSignature]: forEachChildInCallOrConstructSignature,
[SyntaxKind.MethodDeclaration]: function forEachChildInMethodDeclaration<T>(node: MethodDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.MethodSignature]: function forEachChildInMethodSignature<T>(node: MethodSignature, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.Constructor]: function forEachChildInConstructor<T>(node: ConstructorDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.GetAccessor]: function forEachChildInGetAccessor<T>(node: GetAccessorDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.SetAccessor]: function forEachChildInSetAccessor<T>(node: SetAccessorDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.FunctionDeclaration]: function forEachChildInFunctionDeclaration<T>(node: FunctionDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.FunctionExpression]: function forEachChildInFunctionExpression<T>(node: FunctionExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.ArrowFunction]: function forEachChildInArrowFunction<T>(node: ArrowFunction, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.equalsGreaterThanToken) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.ClassStaticBlockDeclaration]: function forEachChildInClassStaticBlockDeclaration<T>(node: ClassStaticBlockDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.TypeReference]: function forEachChildInTypeReference<T>(node: TypeReferenceNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.typeName) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.TypePredicate]: function forEachChildInTypePredicate<T>(node: TypePredicateNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.assertsModifier) ||
visitNode(cbNode, node.parameterName) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.TypeQuery]: function forEachChildInTypeQuery<T>(node: TypeQueryNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.exprName) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.TypeLiteral]: function forEachChildInTypeLiteral<T>(node: TypeLiteralNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.ArrayType]: function forEachChildInArrayType<T>(node: ArrayTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.elementType);
},
[SyntaxKind.TupleType]: function forEachChildInTupleType<T>(node: TupleTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.UnionType]: forEachChildInUnionOrIntersectionType,
[SyntaxKind.IntersectionType]: forEachChildInUnionOrIntersectionType,
[SyntaxKind.ConditionalType]: function forEachChildInConditionalType<T>(node: ConditionalTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.checkType) ||
visitNode(cbNode, node.extendsType) ||
visitNode(cbNode, node.trueType) ||
visitNode(cbNode, node.falseType);
},
[SyntaxKind.InferType]: function forEachChildInInferType<T>(node: InferTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.typeParameter);
},
[SyntaxKind.ImportType]: function forEachChildInImportType<T>(node: ImportTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.argument) ||
visitNode(cbNode, node.assertions) ||
visitNode(cbNode, node.qualifier) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.ImportTypeAssertionContainer]: function forEachChildInImportTypeAssertionContainer<T>(node: ImportTypeAssertionContainer, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.assertClause);
},
[SyntaxKind.ParenthesizedType]: forEachChildInParenthesizedTypeOrTypeOperator,
[SyntaxKind.TypeOperator]: forEachChildInParenthesizedTypeOrTypeOperator,
[SyntaxKind.IndexedAccessType]: function forEachChildInIndexedAccessType<T>(node: IndexedAccessTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.objectType) ||
visitNode(cbNode, node.indexType);
},
[SyntaxKind.MappedType]: function forEachChildInMappedType<T>(node: MappedTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.readonlyToken) ||
visitNode(cbNode, node.typeParameter) ||
visitNode(cbNode, node.nameType) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type) ||
visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.LiteralType]: function forEachChildInLiteralType<T>(node: LiteralTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.literal);
},
[SyntaxKind.NamedTupleMember]: function forEachChildInNamedTupleMember<T>(node: NamedTupleMember, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.ObjectBindingPattern]: forEachChildInObjectOrArrayBindingPattern,
[SyntaxKind.ArrayBindingPattern]: forEachChildInObjectOrArrayBindingPattern,
[SyntaxKind.ArrayLiteralExpression]: function forEachChildInArrayLiteralExpression<T>(node: ArrayLiteralExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.ObjectLiteralExpression]: function forEachChildInObjectLiteralExpression<T>(node: ObjectLiteralExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.properties);
},
[SyntaxKind.PropertyAccessExpression]: function forEachChildInPropertyAccessExpression<T>(node: PropertyAccessExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.questionDotToken) ||
visitNode(cbNode, node.name);
},
[SyntaxKind.ElementAccessExpression]: function forEachChildInElementAccessExpression<T>(node: ElementAccessExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.questionDotToken) ||
visitNode(cbNode, node.argumentExpression);
},
[SyntaxKind.CallExpression]: forEachChildInCallOrNewExpression,
[SyntaxKind.NewExpression]: forEachChildInCallOrNewExpression,
[SyntaxKind.TaggedTemplateExpression]: function forEachChildInTaggedTemplateExpression<T>(node: TaggedTemplateExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tag) ||
visitNode(cbNode, node.questionDotToken) ||
visitNodes(cbNode, cbNodes, node.typeArguments) ||
visitNode(cbNode, node.template);
},
[SyntaxKind.TypeAssertionExpression]: function forEachChildInTypeAssertionExpression<T>(node: TypeAssertion, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.ParenthesizedExpression]: function forEachChildInParenthesizedExpression<T>(node: ParenthesizedExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.DeleteExpression]: function forEachChildInDeleteExpression<T>(node: DeleteExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.TypeOfExpression]: function forEachChildInTypeOfExpression<T>(node: TypeOfExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.VoidExpression]: function forEachChildInVoidExpression<T>(node: VoidExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.PrefixUnaryExpression]: function forEachChildInPrefixUnaryExpression<T>(node: PrefixUnaryExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.operand);
},
[SyntaxKind.YieldExpression]: function forEachChildInYieldExpression<T>(node: YieldExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.AwaitExpression]: function forEachChildInAwaitExpression<T>(node: AwaitExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.PostfixUnaryExpression]: function forEachChildInPostfixUnaryExpression<T>(node: PostfixUnaryExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.operand);
},
[SyntaxKind.BinaryExpression]: function forEachChildInBinaryExpression<T>(node: BinaryExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.left) ||
visitNode(cbNode, node.operatorToken) ||
visitNode(cbNode, node.right);
},
[SyntaxKind.AsExpression]: function forEachChildInAsExpression<T>(node: AsExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.NonNullExpression]: function forEachChildInNonNullExpression<T>(node: NonNullExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.SatisfiesExpression]: function forEachChildInSatisfiesExpression<T>(node: SatisfiesExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) || visitNode(cbNode, node.type);
},
[SyntaxKind.MetaProperty]: function forEachChildInMetaProperty<T>(node: MetaProperty, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.ConditionalExpression]: function forEachChildInConditionalExpression<T>(node: ConditionalExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.condition) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.whenTrue) ||
visitNode(cbNode, node.colonToken) ||
visitNode(cbNode, node.whenFalse);
},
[SyntaxKind.SpreadElement]: function forEachChildInSpreadElement<T>(node: SpreadElement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.Block]: forEachChildInBlock,
[SyntaxKind.ModuleBlock]: forEachChildInBlock,
[SyntaxKind.SourceFile]: function forEachChildInSourceFile<T>(node: SourceFile, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.statements) ||
visitNode(cbNode, node.endOfFileToken);
},
[SyntaxKind.VariableStatement]: function forEachChildInVariableStatement<T>(node: VariableStatement, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.declarationList);
},
[SyntaxKind.VariableDeclarationList]: function forEachChildInVariableDeclarationList<T>(node: VariableDeclarationList, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.declarations);
},
[SyntaxKind.ExpressionStatement]: function forEachChildInExpressionStatement<T>(node: ExpressionStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.IfStatement]: function forEachChildInIfStatement<T>(node: IfStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.thenStatement) ||
visitNode(cbNode, node.elseStatement);
},
[SyntaxKind.DoStatement]: function forEachChildInDoStatement<T>(node: DoStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.statement) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.WhileStatement]: function forEachChildInWhileStatement<T>(node: WhileStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ForStatement]: function forEachChildInForStatement<T>(node: ForStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.initializer) ||
visitNode(cbNode, node.condition) ||
visitNode(cbNode, node.incrementor) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ForInStatement]: function forEachChildInForInStatement<T>(node: ForInStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.initializer) ||
visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ForOfStatement]: function forEachChildInForOfStatement<T>(node: ForOfStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.awaitModifier) ||
visitNode(cbNode, node.initializer) ||
visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ContinueStatement]: forEachChildInContinueOrBreakStatement,
[SyntaxKind.BreakStatement]: forEachChildInContinueOrBreakStatement,
[SyntaxKind.ReturnStatement]: function forEachChildInReturnStatement<T>(node: ReturnStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.WithStatement]: function forEachChildInWithStatement<T>(node: WithStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.SwitchStatement]: function forEachChildInSwitchStatement<T>(node: SwitchStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.caseBlock);
},
[SyntaxKind.CaseBlock]: function forEachChildInCaseBlock<T>(node: CaseBlock, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.clauses);
},
[SyntaxKind.CaseClause]: function forEachChildInCaseClause<T>(node: CaseClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNodes(cbNode, cbNodes, node.statements);
},
[SyntaxKind.DefaultClause]: function forEachChildInDefaultClause<T>(node: DefaultClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.statements);
},
[SyntaxKind.LabeledStatement]: function forEachChildInLabeledStatement<T>(node: LabeledStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.label) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ThrowStatement]: function forEachChildInThrowStatement<T>(node: ThrowStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.TryStatement]: function forEachChildInTryStatement<T>(node: TryStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tryBlock) ||
visitNode(cbNode, node.catchClause) ||
visitNode(cbNode, node.finallyBlock);
},
[SyntaxKind.CatchClause]: function forEachChildInCatchClause<T>(node: CatchClause, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.variableDeclaration) ||
visitNode(cbNode, node.block);
},
[SyntaxKind.Decorator]: function forEachChildInDecorator<T>(node: Decorator, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.ClassDeclaration]: forEachChildInClassDeclarationOrExpression,
[SyntaxKind.ClassExpression]: forEachChildInClassDeclarationOrExpression,
[SyntaxKind.InterfaceDeclaration]: function forEachChildInInterfaceDeclaration<T>(node: InterfaceDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.heritageClauses) ||
visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.TypeAliasDeclaration]: function forEachChildInTypeAliasDeclaration<T>(node: TypeAliasDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.EnumDeclaration]: function forEachChildInEnumDeclaration<T>(node: EnumDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.EnumMember]: function forEachChildInEnumMember<T>(node: EnumMember, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.ModuleDeclaration]: function forEachChildInModuleDeclaration<T>(node: ModuleDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.ImportEqualsDeclaration]: function forEachChildInImportEqualsDeclaration<T>(node: ImportEqualsDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.moduleReference);
},
[SyntaxKind.ImportDeclaration]: function forEachChildInImportDeclaration<T>(node: ImportDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.importClause) ||
visitNode(cbNode, node.moduleSpecifier) ||
visitNode(cbNode, node.assertClause);
},
[SyntaxKind.ImportClause]: function forEachChildInImportClause<T>(node: ImportClause, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.namedBindings);
},
[SyntaxKind.AssertClause]: function forEachChildInAssertClause<T>(node: AssertClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.AssertEntry]: function forEachChildInAssertEntry<T>(node: AssertEntry, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.value);
},
[SyntaxKind.NamespaceExportDeclaration]: function forEachChildInNamespaceExportDeclaration<T>(node: NamespaceExportDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNode(cbNode, node.name);
},
[SyntaxKind.NamespaceImport]: function forEachChildInNamespaceImport<T>(node: NamespaceImport, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.NamespaceExport]: function forEachChildInNamespaceExport<T>(node: NamespaceExport, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.NamedImports]: forEachChildInNamedImportsOrExports,
[SyntaxKind.NamedExports]: forEachChildInNamedImportsOrExports,
[SyntaxKind.ExportDeclaration]: function forEachChildInExportDeclaration<T>(node: ExportDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.exportClause) ||
visitNode(cbNode, node.moduleSpecifier) ||
visitNode(cbNode, node.assertClause);
},
[SyntaxKind.ImportSpecifier]: forEachChildInImportOrExportSpecifier,
[SyntaxKind.ExportSpecifier]: forEachChildInImportOrExportSpecifier,
[SyntaxKind.ExportAssignment]: function forEachChildInExportAssignment<T>(node: ExportAssignment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.TemplateExpression]: function forEachChildInTemplateExpression<T>(node: TemplateExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.head) ||
visitNodes(cbNode, cbNodes, node.templateSpans);
},
[SyntaxKind.TemplateSpan]: function forEachChildInTemplateSpan<T>(node: TemplateSpan, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.literal);
},
[SyntaxKind.TemplateLiteralType]: function forEachChildInTemplateLiteralType<T>(node: TemplateLiteralTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.head) ||
visitNodes(cbNode, cbNodes, node.templateSpans);
},
[SyntaxKind.TemplateLiteralTypeSpan]: function forEachChildInTemplateLiteralTypeSpan<T>(node: TemplateLiteralTypeSpan, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type) ||
visitNode(cbNode, node.literal);
},
[SyntaxKind.ComputedPropertyName]: function forEachChildInComputedPropertyName<T>(node: ComputedPropertyName, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.HeritageClause]: function forEachChildInHeritageClause<T>(node: HeritageClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.types);
},
[SyntaxKind.ExpressionWithTypeArguments]: function forEachChildInExpressionWithTypeArguments<T>(node: ExpressionWithTypeArguments, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.ExternalModuleReference]: function forEachChildInExternalModuleReference<T>(node: ExternalModuleReference, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.MissingDeclaration]: function forEachChildInMissingDeclaration<T>(node: MissingDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers);
},
[SyntaxKind.CommaListExpression]: function forEachChildInCommaListExpression<T>(node: CommaListExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.JsxElement]: function forEachChildInJsxElement<T>(node: JsxElement, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.openingElement) ||
visitNodes(cbNode, cbNodes, node.children) ||
visitNode(cbNode, node.closingElement);
},
[SyntaxKind.JsxFragment]: function forEachChildInJsxFragment<T>(node: JsxFragment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.openingFragment) ||
visitNodes(cbNode, cbNodes, node.children) ||
visitNode(cbNode, node.closingFragment);
},
[SyntaxKind.JsxSelfClosingElement]: forEachChildInJsxOpeningOrSelfClosingElement,
[SyntaxKind.JsxOpeningElement]: forEachChildInJsxOpeningOrSelfClosingElement,
[SyntaxKind.JsxAttributes]: function forEachChildInJsxAttributes<T>(node: JsxAttributes, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.properties);
},
[SyntaxKind.JsxAttribute]: function forEachChildInJsxAttribute<T>(node: JsxAttribute, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.JsxSpreadAttribute]: function forEachChildInJsxSpreadAttribute<T>(node: JsxSpreadAttribute, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.JsxExpression]: function forEachChildInJsxExpression<T>(node: JsxExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.JsxClosingElement]: function forEachChildInJsxClosingElement<T>(node: JsxClosingElement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName);
},
[SyntaxKind.OptionalType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.RestType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocTypeExpression]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocNonNullableType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocNullableType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocOptionalType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocVariadicType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocFunctionType]: function forEachChildInJSDocFunctionType<T>(node: JSDocFunctionType, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.JSDoc]: function forEachChildInJSDoc<T>(node: JSDoc, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment))
|| visitNodes(cbNode, cbNodes, node.tags);
},
[SyntaxKind.JSDocSeeTag]: function forEachChildInJSDocSeeTag<T>(node: JSDocSeeTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.name) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocNameReference]: function forEachChildInJSDocNameReference<T>(node: JSDocNameReference, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.JSDocMemberName]: function forEachChildInJSDocMemberName<T>(node: JSDocMemberName, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.left) ||
visitNode(cbNode, node.right);
},
[SyntaxKind.JSDocParameterTag]: forEachChildInJSDocParameterOrPropertyTag,
[SyntaxKind.JSDocPropertyTag]: forEachChildInJSDocParameterOrPropertyTag,
[SyntaxKind.JSDocAuthorTag]: function forEachChildInJSDocAuthorTag<T>(node: JSDocAuthorTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocImplementsTag]: function forEachChildInJSDocImplementsTag<T>(node: JSDocImplementsTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.class) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocAugmentsTag]: function forEachChildInJSDocAugmentsTag<T>(node: JSDocAugmentsTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.class) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocTemplateTag]: function forEachChildInJSDocTemplateTag<T>(node: JSDocTemplateTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.constraint) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocTypedefTag]: function forEachChildInJSDocTypedefTag<T>(node: JSDocTypedefTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
(node.typeExpression &&
node.typeExpression.kind === SyntaxKind.JSDocTypeExpression
? visitNode(cbNode, node.typeExpression) ||
visitNode(cbNode, node.fullName) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment))
: visitNode(cbNode, node.fullName) ||
visitNode(cbNode, node.typeExpression) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment)));
},
[SyntaxKind.JSDocCallbackTag]: function forEachChildInJSDocCallbackTag<T>(node: JSDocCallbackTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.fullName) ||
visitNode(cbNode, node.typeExpression) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocReturnTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocTypeTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocThisTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocEnumTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocSignature]: function forEachChildInJSDocSignature<T>(node: JSDocSignature, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return forEach(node.typeParameters, cbNode) ||
forEach(node.parameters, cbNode) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.JSDocLink]: forEachChildInJSDocLinkCodeOrPlain,
[SyntaxKind.JSDocLinkCode]: forEachChildInJSDocLinkCodeOrPlain,
[SyntaxKind.JSDocLinkPlain]: forEachChildInJSDocLinkCodeOrPlain,
[SyntaxKind.JSDocTypeLiteral]: function forEachChildInJSDocTypeLiteral<T>(node: JSDocTypeLiteral, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return forEach(node.jsDocPropertyTags, cbNode);
},
[SyntaxKind.JSDocTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocClassTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocPublicTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocPrivateTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocProtectedTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocReadonlyTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocDeprecatedTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocOverrideTag]: forEachChildInJSDocTag,
[SyntaxKind.PartiallyEmittedExpression]: forEachChildInPartiallyEmittedExpression,
};
// shared
function forEachChildInCallOrConstructSignature<T>(node: CallSignatureDeclaration | ConstructSignatureDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
}
function forEachChildInUnionOrIntersectionType<T>(node: UnionTypeNode | IntersectionTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.types);
}
function forEachChildInParenthesizedTypeOrTypeOperator<T>(node: ParenthesizedTypeNode | TypeOperatorNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type);
}
function forEachChildInObjectOrArrayBindingPattern<T>(node: BindingPattern, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
}
function forEachChildInCallOrNewExpression<T>(node: CallExpression | NewExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
// TODO: should we separate these branches out?
visitNode(cbNode, (node as CallExpression).questionDotToken) ||
visitNodes(cbNode, cbNodes, node.typeArguments) ||
visitNodes(cbNode, cbNodes, node.arguments);
}
function forEachChildInBlock<T>(node: Block | ModuleBlock, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.statements);
}
function forEachChildInContinueOrBreakStatement<T>(node: ContinueStatement | BreakStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.label);
}
function forEachChildInClassDeclarationOrExpression<T>(node: ClassDeclaration | ClassExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.heritageClauses) ||
visitNodes(cbNode, cbNodes, node.members);
}
function forEachChildInNamedImportsOrExports<T>(node: NamedImports | NamedExports, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
}
function forEachChildInImportOrExportSpecifier<T>(node: ImportSpecifier | ExportSpecifier, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.propertyName) ||
visitNode(cbNode, node.name);
}
function forEachChildInJsxOpeningOrSelfClosingElement<T>(node: JsxOpeningLikeElement, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNodes(cbNode, cbNodes, node.typeArguments) ||
visitNode(cbNode, node.attributes);
}
function forEachChildInOptionalRestOrJSDocParameterModifier<T>(node: OptionalTypeNode | RestTypeNode | JSDocTypeExpression | JSDocNullableType | JSDocNonNullableType | JSDocOptionalType | JSDocVariadicType, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type);
}
function forEachChildInJSDocParameterOrPropertyTag<T>(node: JSDocParameterTag | JSDocPropertyTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
(node.isNameFirst
? visitNode(cbNode, node.name) || visitNode(cbNode, node.typeExpression)
: visitNode(cbNode, node.typeExpression) || visitNode(cbNode, node.name)) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
}
function forEachChildInJSDocReturnTag<T>(node: JSDocReturnTag | JSDocTypeTag | JSDocThisTag | JSDocEnumTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.typeExpression) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
}
function forEachChildInJSDocLinkCodeOrPlain<T>(node: JSDocLink | JSDocLinkCode | JSDocLinkPlain, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
}
function forEachChildInJSDocTag<T>(node: JSDocUnknownTag | JSDocClassTag | JSDocPublicTag | JSDocPrivateTag | JSDocProtectedTag | JSDocReadonlyTag | JSDocDeprecatedTag | JSDocOverrideTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName)
|| (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
}
function forEachChildInPartiallyEmittedExpression<T>(node: PartiallyEmittedExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
}
/**
* Invokes a callback for each child of the given node. The 'cbNode' callback is invoked for all child nodes
* stored in properties. If a 'cbNodes' callback is specified, it is invoked for embedded arrays; otherwise,
* embedded arrays are flattened and the 'cbNode' callback is invoked for each element. If a callback returns
* a truthy value, iteration stops and that value is returned. Otherwise, undefined is returned.
*
* @param node a given node to visit its children
* @param cbNode a callback to be invoked for all child nodes
* @param cbNodes a callback to be invoked for embedded array
*
* @remarks `forEachChild` must visit the children of a node in the order
* that they appear in the source code. The language service depends on this property to locate nodes by position.
*/
export function forEachChild<T>(node: Node, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
if (node === undefined || node.kind <= SyntaxKind.LastToken) {
return;
}
const fn = (forEachChildTable as Record<SyntaxKind, ForEachChildFunction<any>>)[node.kind];
return fn === undefined ? undefined : fn(node, cbNode, cbNodes);
}
/** @internal */
/**
* Invokes a callback for each child of the given node. The 'cbNode' callback is invoked for all child nodes
* stored in properties. If a 'cbNodes' callback is specified, it is invoked for embedded arrays; additionally,
* unlike `forEachChild`, embedded arrays are flattened and the 'cbNode' callback is invoked for each element.
* If a callback returns a truthy value, iteration stops and that value is returned. Otherwise, undefined is returned.
*
* @param node a given node to visit its children
* @param cbNode a callback to be invoked for all child nodes
* @param cbNodes a callback to be invoked for embedded array
*
* @remarks Unlike `forEachChild`, `forEachChildRecursively` handles recursively invoking the traversal on each child node found,
* and while doing so, handles traversing the structure without relying on the callstack to encode the tree structure.
*/
export function forEachChildRecursively<T>(rootNode: Node, cbNode: (node: Node, parent: Node) => T | "skip" | undefined, cbNodes?: (nodes: NodeArray<Node>, parent: Node) => T | "skip" | undefined): T | undefined {
const queue: (Node | NodeArray<Node>)[] = gatherPossibleChildren(rootNode);
const parents: Node[] = []; // tracks parent references for elements in queue
while (parents.length < queue.length) {
parents.push(rootNode);
}
while (queue.length !== 0) {
const current = queue.pop()!;
const parent = parents.pop()!;
if (isArray(current)) {
if (cbNodes) {
const res = cbNodes(current, parent);
if (res) {
if (res === "skip") continue;
return res;
}
}
for (let i = current.length - 1; i >= 0; --i) {
queue.push(current[i]);
parents.push(parent);
}
}
else {
const res = cbNode(current, parent);
if (res) {
if (res === "skip") continue;
return res;
}
if (current.kind >= SyntaxKind.FirstNode) {
// add children in reverse order to the queue, so popping gives the first child
for (const child of gatherPossibleChildren(current)) {
queue.push(child);
parents.push(current);
}
}
}
}
}
function gatherPossibleChildren(node: Node) {
const children: (Node | NodeArray<Node>)[] = [];
forEachChild(node, addWorkItem, addWorkItem); // By using a stack above and `unshift` here, we emulate a depth-first preorder traversal
return children;
function addWorkItem(n: Node | NodeArray<Node>) {
children.unshift(n);
}
}
export interface CreateSourceFileOptions {
languageVersion: ScriptTarget;
/**
* Controls the format the file is detected as - this can be derived from only the path
* and files on disk, but needs to be done with a module resolution cache in scope to be performant.
* This is usually `undefined` for compilations that do not have `moduleResolution` values of `node16` or `nodenext`.
*/
impliedNodeFormat?: ModuleKind.ESNext | ModuleKind.CommonJS;
/**
* Controls how module-y-ness is set for the given file. Usually the result of calling
* `getSetExternalModuleIndicator` on a valid `CompilerOptions` object. If not present, the default
* check specified by `isFileProbablyExternalModule` will be used to set the field.
*/
setExternalModuleIndicator?: (file: SourceFile) => void;
/*@internal*/ packageJsonLocations?: readonly string[];
/*@internal*/ packageJsonScope?: PackageJsonInfo;
}
function setExternalModuleIndicator(sourceFile: SourceFile) {
sourceFile.externalModuleIndicator = isFileProbablyExternalModule(sourceFile);
}
export function createSourceFile(fileName: string, sourceText: string, languageVersionOrOptions: ScriptTarget | CreateSourceFileOptions, setParentNodes = false, scriptKind?: ScriptKind): SourceFile {
tracing?.push(tracing.Phase.Parse, "createSourceFile", { path: fileName }, /*separateBeginAndEnd*/ true);
performance.mark("beforeParse");
let result: SourceFile;
perfLogger.logStartParseSourceFile(fileName);
const {
languageVersion,
setExternalModuleIndicator: overrideSetExternalModuleIndicator,
impliedNodeFormat: format
} = typeof languageVersionOrOptions === "object" ? languageVersionOrOptions : ({ languageVersion: languageVersionOrOptions } as CreateSourceFileOptions);
if (languageVersion === ScriptTarget.JSON) {
result = Parser.parseSourceFile(fileName, sourceText, languageVersion, /*syntaxCursor*/ undefined, setParentNodes, ScriptKind.JSON, noop);
}
else {
const setIndicator = format === undefined ? overrideSetExternalModuleIndicator : (file: SourceFile) => {
file.impliedNodeFormat = format;
return (overrideSetExternalModuleIndicator || setExternalModuleIndicator)(file);
};
result = Parser.parseSourceFile(fileName, sourceText, languageVersion, /*syntaxCursor*/ undefined, setParentNodes, scriptKind, setIndicator);
}
perfLogger.logStopParseSourceFile();
performance.mark("afterParse");
performance.measure("Parse", "beforeParse", "afterParse");
tracing?.pop();
return result;
}
export function parseIsolatedEntityName(text: string, languageVersion: ScriptTarget): EntityName | undefined {
return Parser.parseIsolatedEntityName(text, languageVersion);
}
/**
* Parse json text into SyntaxTree and return node and parse errors if any
* @param fileName
* @param sourceText
*/
export function parseJsonText(fileName: string, sourceText: string): JsonSourceFile {
return Parser.parseJsonText(fileName, sourceText);
}
// See also `isExternalOrCommonJsModule` in utilities.ts
export function isExternalModule(file: SourceFile): boolean {
return file.externalModuleIndicator !== undefined;
}
// Produces a new SourceFile for the 'newText' provided. The 'textChangeRange' parameter
// indicates what changed between the 'text' that this SourceFile has and the 'newText'.
// The SourceFile will be created with the compiler attempting to reuse as many nodes from
// this file as possible.
//
// Note: this function mutates nodes from this SourceFile. That means any existing nodes
// from this SourceFile that are being held onto may change as a result (including
// becoming detached from any SourceFile). It is recommended that this SourceFile not
// be used once 'update' is called on it.
export function updateSourceFile(sourceFile: SourceFile, newText: string, textChangeRange: TextChangeRange, aggressiveChecks = false): SourceFile {
const newSourceFile = IncrementalParser.updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks);
// Because new source file node is created, it may not have the flag PossiblyContainDynamicImport. This is the case if there is no new edit to add dynamic import.
// We will manually port the flag to the new source file.
(newSourceFile as Mutable<SourceFile>).flags |= (sourceFile.flags & NodeFlags.PermanentlySetIncrementalFlags);
return newSourceFile;
}