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Issue 2407553002: Guard against exceptions thrown by linters (issue 27545) (Closed)
Patch Set: Created 4 years, 2 months ago
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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 /** 5 /**
6 * Defines AST visitors that support useful patterns for visiting the nodes in 6 * Defines AST visitors that support useful patterns for visiting the nodes in
7 * an [AST structure](ast.dart). 7 * an [AST structure](ast.dart).
8 * 8 *
9 * Dart is an evolving language, and the AST structure must evolved with it. 9 * Dart is an evolving language, and the AST structure must evolved with it.
10 * When the AST structure changes, the visitor interface will sometimes change 10 * When the AST structure changes, the visitor interface will sometimes change
(...skipping 90 matching lines...) Expand 10 before | Expand all | Expand 10 after
101 * following visit methods will be invoked: 101 * following visit methods will be invoked:
102 * 1. V1.visitBinaryExpression 102 * 1. V1.visitBinaryExpression
103 * 2. V2.visitBinaryExpression 103 * 2. V2.visitBinaryExpression
104 * 3. V1.visitSimpleIdentifier 104 * 3. V1.visitSimpleIdentifier
105 * 4. V2.visitSimpleIdentifier 105 * 4. V2.visitSimpleIdentifier
106 * 5. V1.visitIntegerLiteral 106 * 5. V1.visitIntegerLiteral
107 * 6. V2.visitIntegerLiteral 107 * 6. V2.visitIntegerLiteral
108 * 108 *
109 * Clients may not extend, implement or mix-in this class. 109 * Clients may not extend, implement or mix-in this class.
110 */ 110 */
111 class DelegatingAstVisitor<T> implements AstVisitor<T> { 111 class DelegatingAstVisitor<T> extends UnifyingAstVisitor<T> {
112 /** 112 /**
113 * The delegates whose visit methods will be invoked. 113 * The delegates whose visit methods will be invoked.
114 */ 114 */
115 final Iterable<AstVisitor<T>> _delegates; 115 final Iterable<AstVisitor<T>> delegates;
116 116
117 /** 117 /**
118 * Initialize a newly created visitor to use each of the given delegate 118 * Initialize a newly created visitor to use each of the given delegate
119 * visitors to visit the nodes of an AST structure. 119 * visitors to visit the nodes of an AST structure.
120 */ 120 */
121 DelegatingAstVisitor(this._delegates); 121 DelegatingAstVisitor(this.delegates);
122 122
123 @override 123 @override
124 T visitAdjacentStrings(AdjacentStrings node) { 124 T visitNode(AstNode node) {
125 _delegates.forEach((delegate) => delegate.visitAdjacentStrings(node)); 125 delegates.forEach((delegate) {
126 node.accept(delegate);
127 });
126 node.visitChildren(this); 128 node.visitChildren(this);
127 return null; 129 return null;
128 } 130 }
129
130 @override
131 T visitAnnotation(Annotation node) {
132 _delegates.forEach((delegate) => delegate.visitAnnotation(node));
133 node.visitChildren(this);
134 return null;
135 }
136
137 @override
138 T visitArgumentList(ArgumentList node) {
139 _delegates.forEach((delegate) => delegate.visitArgumentList(node));
140 node.visitChildren(this);
141 return null;
142 }
143
144 @override
145 T visitAsExpression(AsExpression node) {
146 _delegates.forEach((delegate) => delegate.visitAsExpression(node));
147 node.visitChildren(this);
148 return null;
149 }
150
151 @override
152 T visitAssertStatement(AssertStatement node) {
153 _delegates.forEach((delegate) => delegate.visitAssertStatement(node));
154 node.visitChildren(this);
155 return null;
156 }
157
158 @override
159 T visitAssignmentExpression(AssignmentExpression node) {
160 _delegates.forEach((delegate) => delegate.visitAssignmentExpression(node));
161 node.visitChildren(this);
162 return null;
163 }
164
165 @override
166 T visitAwaitExpression(AwaitExpression node) {
167 _delegates.forEach((delegate) => delegate.visitAwaitExpression(node));
168 node.visitChildren(this);
169 return null;
170 }
171
172 @override
173 T visitBinaryExpression(BinaryExpression node) {
174 _delegates.forEach((delegate) => delegate.visitBinaryExpression(node));
175 node.visitChildren(this);
176 return null;
177 }
178
179 @override
180 T visitBlock(Block node) {
181 _delegates.forEach((delegate) => delegate.visitBlock(node));
182 node.visitChildren(this);
183 return null;
184 }
185
186 @override
187 T visitBlockFunctionBody(BlockFunctionBody node) {
188 _delegates.forEach((delegate) => delegate.visitBlockFunctionBody(node));
189 node.visitChildren(this);
190 return null;
191 }
192
193 @override
194 T visitBooleanLiteral(BooleanLiteral node) {
195 _delegates.forEach((delegate) => delegate.visitBooleanLiteral(node));
196 node.visitChildren(this);
197 return null;
198 }
199
200 @override
201 T visitBreakStatement(BreakStatement node) {
202 _delegates.forEach((delegate) => delegate.visitBreakStatement(node));
203 node.visitChildren(this);
204 return null;
205 }
206
207 @override
208 T visitCascadeExpression(CascadeExpression node) {
209 _delegates.forEach((delegate) => delegate.visitCascadeExpression(node));
210 node.visitChildren(this);
211 return null;
212 }
213
214 @override
215 T visitCatchClause(CatchClause node) {
216 _delegates.forEach((delegate) => delegate.visitCatchClause(node));
217 node.visitChildren(this);
218 return null;
219 }
220
221 @override
222 T visitClassDeclaration(ClassDeclaration node) {
223 _delegates.forEach((delegate) => delegate.visitClassDeclaration(node));
224 node.visitChildren(this);
225 return null;
226 }
227
228 @override
229 T visitClassTypeAlias(ClassTypeAlias node) {
230 _delegates.forEach((delegate) => delegate.visitClassTypeAlias(node));
231 node.visitChildren(this);
232 return null;
233 }
234
235 @override
236 T visitComment(Comment node) {
237 _delegates.forEach((delegate) => delegate.visitComment(node));
238 node.visitChildren(this);
239 return null;
240 }
241
242 @override
243 T visitCommentReference(CommentReference node) {
244 _delegates.forEach((delegate) => delegate.visitCommentReference(node));
245 node.visitChildren(this);
246 return null;
247 }
248
249 @override
250 T visitCompilationUnit(CompilationUnit node) {
251 _delegates.forEach((delegate) => delegate.visitCompilationUnit(node));
252 node.visitChildren(this);
253 return null;
254 }
255
256 @override
257 T visitConditionalExpression(ConditionalExpression node) {
258 _delegates.forEach((delegate) => delegate.visitConditionalExpression(node));
259 node.visitChildren(this);
260 return null;
261 }
262
263 @override
264 T visitConfiguration(Configuration node) {
265 _delegates.forEach((delegate) => delegate.visitConfiguration(node));
266 node.visitChildren(this);
267 return null;
268 }
269
270 @override
271 T visitConstructorDeclaration(ConstructorDeclaration node) {
272 _delegates
273 .forEach((delegate) => delegate.visitConstructorDeclaration(node));
274 node.visitChildren(this);
275 return null;
276 }
277
278 @override
279 T visitConstructorFieldInitializer(ConstructorFieldInitializer node) {
280 _delegates
281 .forEach((delegate) => delegate.visitConstructorFieldInitializer(node));
282 node.visitChildren(this);
283 return null;
284 }
285
286 @override
287 T visitConstructorName(ConstructorName node) {
288 _delegates.forEach((delegate) => delegate.visitConstructorName(node));
289 node.visitChildren(this);
290 return null;
291 }
292
293 @override
294 T visitContinueStatement(ContinueStatement node) {
295 _delegates.forEach((delegate) => delegate.visitContinueStatement(node));
296 node.visitChildren(this);
297 return null;
298 }
299
300 @override
301 T visitDeclaredIdentifier(DeclaredIdentifier node) {
302 _delegates.forEach((delegate) => delegate.visitDeclaredIdentifier(node));
303 node.visitChildren(this);
304 return null;
305 }
306
307 @override
308 T visitDefaultFormalParameter(DefaultFormalParameter node) {
309 _delegates
310 .forEach((delegate) => delegate.visitDefaultFormalParameter(node));
311 node.visitChildren(this);
312 return null;
313 }
314
315 @override
316 T visitDoStatement(DoStatement node) {
317 _delegates.forEach((delegate) => delegate.visitDoStatement(node));
318 node.visitChildren(this);
319 return null;
320 }
321
322 @override
323 T visitDottedName(DottedName node) {
324 _delegates.forEach((delegate) => delegate.visitDottedName(node));
325 node.visitChildren(this);
326 return null;
327 }
328
329 @override
330 T visitDoubleLiteral(DoubleLiteral node) {
331 _delegates.forEach((delegate) => delegate.visitDoubleLiteral(node));
332 node.visitChildren(this);
333 return null;
334 }
335
336 @override
337 T visitEmptyFunctionBody(EmptyFunctionBody node) {
338 _delegates.forEach((delegate) => delegate.visitEmptyFunctionBody(node));
339 node.visitChildren(this);
340 return null;
341 }
342
343 @override
344 T visitEmptyStatement(EmptyStatement node) {
345 _delegates.forEach((delegate) => delegate.visitEmptyStatement(node));
346 node.visitChildren(this);
347 return null;
348 }
349
350 @override
351 T visitEnumConstantDeclaration(EnumConstantDeclaration node) {
352 _delegates
353 .forEach((delegate) => delegate.visitEnumConstantDeclaration(node));
354 node.visitChildren(this);
355 return null;
356 }
357
358 @override
359 T visitEnumDeclaration(EnumDeclaration node) {
360 _delegates.forEach((delegate) => delegate.visitEnumDeclaration(node));
361 node.visitChildren(this);
362 return null;
363 }
364
365 @override
366 T visitExportDirective(ExportDirective node) {
367 _delegates.forEach((delegate) => delegate.visitExportDirective(node));
368 node.visitChildren(this);
369 return null;
370 }
371
372 @override
373 T visitExpressionFunctionBody(ExpressionFunctionBody node) {
374 _delegates
375 .forEach((delegate) => delegate.visitExpressionFunctionBody(node));
376 node.visitChildren(this);
377 return null;
378 }
379
380 @override
381 T visitExpressionStatement(ExpressionStatement node) {
382 _delegates.forEach((delegate) => delegate.visitExpressionStatement(node));
383 node.visitChildren(this);
384 return null;
385 }
386
387 @override
388 T visitExtendsClause(ExtendsClause node) {
389 _delegates.forEach((delegate) => delegate.visitExtendsClause(node));
390 node.visitChildren(this);
391 return null;
392 }
393
394 @override
395 T visitFieldDeclaration(FieldDeclaration node) {
396 _delegates.forEach((delegate) => delegate.visitFieldDeclaration(node));
397 node.visitChildren(this);
398 return null;
399 }
400
401 @override
402 T visitFieldFormalParameter(FieldFormalParameter node) {
403 _delegates.forEach((delegate) => delegate.visitFieldFormalParameter(node));
404 node.visitChildren(this);
405 return null;
406 }
407
408 @override
409 T visitForEachStatement(ForEachStatement node) {
410 _delegates.forEach((delegate) => delegate.visitForEachStatement(node));
411 node.visitChildren(this);
412 return null;
413 }
414
415 @override
416 T visitFormalParameterList(FormalParameterList node) {
417 _delegates.forEach((delegate) => delegate.visitFormalParameterList(node));
418 node.visitChildren(this);
419 return null;
420 }
421
422 @override
423 T visitForStatement(ForStatement node) {
424 _delegates.forEach((delegate) => delegate.visitForStatement(node));
425 node.visitChildren(this);
426 return null;
427 }
428
429 @override
430 T visitFunctionDeclaration(FunctionDeclaration node) {
431 _delegates.forEach((delegate) => delegate.visitFunctionDeclaration(node));
432 node.visitChildren(this);
433 return null;
434 }
435
436 @override
437 T visitFunctionDeclarationStatement(FunctionDeclarationStatement node) {
438 _delegates.forEach(
439 (delegate) => delegate.visitFunctionDeclarationStatement(node));
440 node.visitChildren(this);
441 return null;
442 }
443
444 @override
445 T visitFunctionExpression(FunctionExpression node) {
446 _delegates.forEach((delegate) => delegate.visitFunctionExpression(node));
447 node.visitChildren(this);
448 return null;
449 }
450
451 @override
452 T visitFunctionExpressionInvocation(FunctionExpressionInvocation node) {
453 _delegates.forEach(
454 (delegate) => delegate.visitFunctionExpressionInvocation(node));
455 node.visitChildren(this);
456 return null;
457 }
458
459 @override
460 T visitFunctionTypeAlias(FunctionTypeAlias node) {
461 _delegates.forEach((delegate) => delegate.visitFunctionTypeAlias(node));
462 node.visitChildren(this);
463 return null;
464 }
465
466 @override
467 T visitFunctionTypedFormalParameter(FunctionTypedFormalParameter node) {
468 _delegates.forEach(
469 (delegate) => delegate.visitFunctionTypedFormalParameter(node));
470 node.visitChildren(this);
471 return null;
472 }
473
474 @override
475 T visitHideCombinator(HideCombinator node) {
476 _delegates.forEach((delegate) => delegate.visitHideCombinator(node));
477 node.visitChildren(this);
478 return null;
479 }
480
481 @override
482 T visitIfStatement(IfStatement node) {
483 _delegates.forEach((delegate) => delegate.visitIfStatement(node));
484 node.visitChildren(this);
485 return null;
486 }
487
488 @override
489 T visitImplementsClause(ImplementsClause node) {
490 _delegates.forEach((delegate) => delegate.visitImplementsClause(node));
491 node.visitChildren(this);
492 return null;
493 }
494
495 @override
496 T visitImportDirective(ImportDirective node) {
497 _delegates.forEach((delegate) => delegate.visitImportDirective(node));
498 node.visitChildren(this);
499 return null;
500 }
501
502 @override
503 T visitIndexExpression(IndexExpression node) {
504 _delegates.forEach((delegate) => delegate.visitIndexExpression(node));
505 node.visitChildren(this);
506 return null;
507 }
508
509 @override
510 T visitInstanceCreationExpression(InstanceCreationExpression node) {
511 _delegates
512 .forEach((delegate) => delegate.visitInstanceCreationExpression(node));
513 node.visitChildren(this);
514 return null;
515 }
516
517 @override
518 T visitIntegerLiteral(IntegerLiteral node) {
519 _delegates.forEach((delegate) => delegate.visitIntegerLiteral(node));
520 node.visitChildren(this);
521 return null;
522 }
523
524 @override
525 T visitInterpolationExpression(InterpolationExpression node) {
526 _delegates
527 .forEach((delegate) => delegate.visitInterpolationExpression(node));
528 node.visitChildren(this);
529 return null;
530 }
531
532 @override
533 T visitInterpolationString(InterpolationString node) {
534 _delegates.forEach((delegate) => delegate.visitInterpolationString(node));
535 node.visitChildren(this);
536 return null;
537 }
538
539 @override
540 T visitIsExpression(IsExpression node) {
541 _delegates.forEach((delegate) => delegate.visitIsExpression(node));
542 node.visitChildren(this);
543 return null;
544 }
545
546 @override
547 T visitLabel(Label node) {
548 _delegates.forEach((delegate) => delegate.visitLabel(node));
549 node.visitChildren(this);
550 return null;
551 }
552
553 @override
554 T visitLabeledStatement(LabeledStatement node) {
555 _delegates.forEach((delegate) => delegate.visitLabeledStatement(node));
556 node.visitChildren(this);
557 return null;
558 }
559
560 @override
561 T visitLibraryDirective(LibraryDirective node) {
562 _delegates.forEach((delegate) => delegate.visitLibraryDirective(node));
563 node.visitChildren(this);
564 return null;
565 }
566
567 @override
568 T visitLibraryIdentifier(LibraryIdentifier node) {
569 _delegates.forEach((delegate) => delegate.visitLibraryIdentifier(node));
570 node.visitChildren(this);
571 return null;
572 }
573
574 @override
575 T visitListLiteral(ListLiteral node) {
576 _delegates.forEach((delegate) => delegate.visitListLiteral(node));
577 node.visitChildren(this);
578 return null;
579 }
580
581 @override
582 T visitMapLiteral(MapLiteral node) {
583 _delegates.forEach((delegate) => delegate.visitMapLiteral(node));
584 node.visitChildren(this);
585 return null;
586 }
587
588 @override
589 T visitMapLiteralEntry(MapLiteralEntry node) {
590 _delegates.forEach((delegate) => delegate.visitMapLiteralEntry(node));
591 node.visitChildren(this);
592 return null;
593 }
594
595 @override
596 T visitMethodDeclaration(MethodDeclaration node) {
597 _delegates.forEach((delegate) => delegate.visitMethodDeclaration(node));
598 node.visitChildren(this);
599 return null;
600 }
601
602 @override
603 T visitMethodInvocation(MethodInvocation node) {
604 _delegates.forEach((delegate) => delegate.visitMethodInvocation(node));
605 node.visitChildren(this);
606 return null;
607 }
608
609 @override
610 T visitNamedExpression(NamedExpression node) {
611 _delegates.forEach((delegate) => delegate.visitNamedExpression(node));
612 node.visitChildren(this);
613 return null;
614 }
615
616 @override
617 T visitNativeClause(NativeClause node) {
618 _delegates.forEach((delegate) => delegate.visitNativeClause(node));
619 node.visitChildren(this);
620 return null;
621 }
622
623 @override
624 T visitNativeFunctionBody(NativeFunctionBody node) {
625 _delegates.forEach((delegate) => delegate.visitNativeFunctionBody(node));
626 node.visitChildren(this);
627 return null;
628 }
629
630 @override
631 T visitNullLiteral(NullLiteral node) {
632 _delegates.forEach((delegate) => delegate.visitNullLiteral(node));
633 node.visitChildren(this);
634 return null;
635 }
636
637 @override
638 T visitParenthesizedExpression(ParenthesizedExpression node) {
639 _delegates
640 .forEach((delegate) => delegate.visitParenthesizedExpression(node));
641 node.visitChildren(this);
642 return null;
643 }
644
645 @override
646 T visitPartDirective(PartDirective node) {
647 _delegates.forEach((delegate) => delegate.visitPartDirective(node));
648 node.visitChildren(this);
649 return null;
650 }
651
652 @override
653 T visitPartOfDirective(PartOfDirective node) {
654 _delegates.forEach((delegate) => delegate.visitPartOfDirective(node));
655 node.visitChildren(this);
656 return null;
657 }
658
659 @override
660 T visitPostfixExpression(PostfixExpression node) {
661 _delegates.forEach((delegate) => delegate.visitPostfixExpression(node));
662 node.visitChildren(this);
663 return null;
664 }
665
666 @override
667 T visitPrefixedIdentifier(PrefixedIdentifier node) {
668 _delegates.forEach((delegate) => delegate.visitPrefixedIdentifier(node));
669 node.visitChildren(this);
670 return null;
671 }
672
673 @override
674 T visitPrefixExpression(PrefixExpression node) {
675 _delegates.forEach((delegate) => delegate.visitPrefixExpression(node));
676 node.visitChildren(this);
677 return null;
678 }
679
680 @override
681 T visitPropertyAccess(PropertyAccess node) {
682 _delegates.forEach((delegate) => delegate.visitPropertyAccess(node));
683 node.visitChildren(this);
684 return null;
685 }
686
687 @override
688 T visitRedirectingConstructorInvocation(
689 RedirectingConstructorInvocation node) {
690 _delegates.forEach(
691 (delegate) => delegate.visitRedirectingConstructorInvocation(node));
692 node.visitChildren(this);
693 return null;
694 }
695
696 @override
697 T visitRethrowExpression(RethrowExpression node) {
698 _delegates.forEach((delegate) => delegate.visitRethrowExpression(node));
699 node.visitChildren(this);
700 return null;
701 }
702
703 @override
704 T visitReturnStatement(ReturnStatement node) {
705 _delegates.forEach((delegate) => delegate.visitReturnStatement(node));
706 node.visitChildren(this);
707 return null;
708 }
709
710 @override
711 T visitScriptTag(ScriptTag node) {
712 _delegates.forEach((delegate) => delegate.visitScriptTag(node));
713 node.visitChildren(this);
714 return null;
715 }
716
717 @override
718 T visitShowCombinator(ShowCombinator node) {
719 _delegates.forEach((delegate) => delegate.visitShowCombinator(node));
720 node.visitChildren(this);
721 return null;
722 }
723
724 @override
725 T visitSimpleFormalParameter(SimpleFormalParameter node) {
726 _delegates.forEach((delegate) => delegate.visitSimpleFormalParameter(node));
727 node.visitChildren(this);
728 return null;
729 }
730
731 @override
732 T visitSimpleIdentifier(SimpleIdentifier node) {
733 _delegates.forEach((delegate) => delegate.visitSimpleIdentifier(node));
734 node.visitChildren(this);
735 return null;
736 }
737
738 @override
739 T visitSimpleStringLiteral(SimpleStringLiteral node) {
740 _delegates.forEach((delegate) => delegate.visitSimpleStringLiteral(node));
741 node.visitChildren(this);
742 return null;
743 }
744
745 @override
746 T visitStringInterpolation(StringInterpolation node) {
747 _delegates.forEach((delegate) => delegate.visitStringInterpolation(node));
748 node.visitChildren(this);
749 return null;
750 }
751
752 @override
753 T visitSuperConstructorInvocation(SuperConstructorInvocation node) {
754 _delegates
755 .forEach((delegate) => delegate.visitSuperConstructorInvocation(node));
756 node.visitChildren(this);
757 return null;
758 }
759
760 @override
761 T visitSuperExpression(SuperExpression node) {
762 _delegates.forEach((delegate) => delegate.visitSuperExpression(node));
763 node.visitChildren(this);
764 return null;
765 }
766
767 @override
768 T visitSwitchCase(SwitchCase node) {
769 _delegates.forEach((delegate) => delegate.visitSwitchCase(node));
770 node.visitChildren(this);
771 return null;
772 }
773
774 @override
775 T visitSwitchDefault(SwitchDefault node) {
776 _delegates.forEach((delegate) => delegate.visitSwitchDefault(node));
777 node.visitChildren(this);
778 return null;
779 }
780
781 @override
782 T visitSwitchStatement(SwitchStatement node) {
783 _delegates.forEach((delegate) => delegate.visitSwitchStatement(node));
784 node.visitChildren(this);
785 return null;
786 }
787
788 @override
789 T visitSymbolLiteral(SymbolLiteral node) {
790 _delegates.forEach((delegate) => delegate.visitSymbolLiteral(node));
791 node.visitChildren(this);
792 return null;
793 }
794
795 @override
796 T visitThisExpression(ThisExpression node) {
797 _delegates.forEach((delegate) => delegate.visitThisExpression(node));
798 node.visitChildren(this);
799 return null;
800 }
801
802 @override
803 T visitThrowExpression(ThrowExpression node) {
804 _delegates.forEach((delegate) => delegate.visitThrowExpression(node));
805 node.visitChildren(this);
806 return null;
807 }
808
809 @override
810 T visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) {
811 _delegates
812 .forEach((delegate) => delegate.visitTopLevelVariableDeclaration(node));
813 node.visitChildren(this);
814 return null;
815 }
816
817 @override
818 T visitTryStatement(TryStatement node) {
819 _delegates.forEach((delegate) => delegate.visitTryStatement(node));
820 node.visitChildren(this);
821 return null;
822 }
823
824 @override
825 T visitTypeArgumentList(TypeArgumentList node) {
826 _delegates.forEach((delegate) => delegate.visitTypeArgumentList(node));
827 node.visitChildren(this);
828 return null;
829 }
830
831 @override
832 T visitTypeName(TypeName node) {
833 _delegates.forEach((delegate) => delegate.visitTypeName(node));
834 node.visitChildren(this);
835 return null;
836 }
837
838 @override
839 T visitTypeParameter(TypeParameter node) {
840 _delegates.forEach((delegate) => delegate.visitTypeParameter(node));
841 node.visitChildren(this);
842 return null;
843 }
844
845 @override
846 T visitTypeParameterList(TypeParameterList node) {
847 _delegates.forEach((delegate) => delegate.visitTypeParameterList(node));
848 node.visitChildren(this);
849 return null;
850 }
851
852 @override
853 T visitVariableDeclaration(VariableDeclaration node) {
854 _delegates.forEach((delegate) => delegate.visitVariableDeclaration(node));
855 node.visitChildren(this);
856 return null;
857 }
858
859 @override
860 T visitVariableDeclarationList(VariableDeclarationList node) {
861 _delegates
862 .forEach((delegate) => delegate.visitVariableDeclarationList(node));
863 node.visitChildren(this);
864 return null;
865 }
866
867 @override
868 T visitVariableDeclarationStatement(VariableDeclarationStatement node) {
869 _delegates.forEach(
870 (delegate) => delegate.visitVariableDeclarationStatement(node));
871 node.visitChildren(this);
872 return null;
873 }
874
875 @override
876 T visitWhileStatement(WhileStatement node) {
877 _delegates.forEach((delegate) => delegate.visitWhileStatement(node));
878 node.visitChildren(this);
879 return null;
880 }
881
882 @override
883 T visitWithClause(WithClause node) {
884 _delegates.forEach((delegate) => delegate.visitWithClause(node));
885 node.visitChildren(this);
886 return null;
887 }
888
889 @override
890 T visitYieldStatement(YieldStatement node) {
891 _delegates.forEach((delegate) => delegate.visitYieldStatement(node));
892 node.visitChildren(this);
893 return null;
894 }
895 } 131 }
896 132
897 /** 133 /**
898 * An AST visitor that will recursively visit all of the nodes in an AST 134 * An AST visitor that will recursively visit all of the nodes in an AST
899 * structure (like instances of the class [RecursiveAstVisitor]). In addition, 135 * structure (like instances of the class [RecursiveAstVisitor]). In addition,
900 * when a node of a specific type is visited not only will the visit method for 136 * when a node of a specific type is visited not only will the visit method for
901 * that specific type of node be invoked, but additional methods for the 137 * that specific type of node be invoked, but additional methods for the
902 * superclasses of that node will also be invoked. For example, using an 138 * superclasses of that node will also be invoked. For example, using an
903 * instance of this class to visit a [Block] will cause the method [visitBlock] 139 * instance of this class to visit a [Block] will cause the method [visitBlock]
904 * to be invoked but will also cause the methods [visitStatement] and 140 * to be invoked but will also cause the methods [visitStatement] and
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3584 * Initialize a newly created visitor to help the [outerVisitor]. 2820 * Initialize a newly created visitor to help the [outerVisitor].
3585 */ 2821 */
3586 _BreadthFirstChildVisitor(this.outerVisitor); 2822 _BreadthFirstChildVisitor(this.outerVisitor);
3587 2823
3588 @override 2824 @override
3589 Object visitNode(AstNode node) { 2825 Object visitNode(AstNode node) {
3590 outerVisitor._queue.add(node); 2826 outerVisitor._queue.add(node);
3591 return null; 2827 return null;
3592 } 2828 }
3593 } 2829 }
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