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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2016, 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 library kernel.transformations.closure.converter; | 5 library kernel.transformations.closure.converter; |
6 | 6 |
7 import '../../ast.dart' | 7 import '../../ast.dart' |
8 show | 8 show |
9 AsyncMarker, | |
9 Arguments, | 10 Arguments, |
10 Block, | 11 Block, |
11 Catch, | 12 Catch, |
12 Class, | 13 Class, |
13 ClosureCreation, | 14 ClosureCreation, |
14 Constructor, | 15 Constructor, |
15 DartType, | 16 DartType, |
16 EmptyStatement, | 17 EmptyStatement, |
17 Expression, | 18 Expression, |
18 ExpressionStatement, | 19 ExpressionStatement, |
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339 | 340 |
340 TreeNode visitField(Field node) { | 341 TreeNode visitField(Field node) { |
341 currentMember = node; | 342 currentMember = node; |
342 context = new NoContext(this); | 343 context = new NoContext(this); |
343 node = super.visitField(node); | 344 node = super.visitField(node); |
344 context = null; | 345 context = null; |
345 currentMember = null; | 346 currentMember = null; |
346 return node; | 347 return node; |
347 } | 348 } |
348 | 349 |
349 Expression handleLocalFunction(FunctionNode function) { | 350 Expression handleLocalFunction(FunctionNode function, [bool nope]) { |
Dmitry Stefantsov
2017/08/24 09:41:13
Is [nope] used anywhere? If not, I suggest removi
sjindel
2017/08/24 11:11:43
This was just some vestigial debugging code.
| |
351 nope ??= false; | |
352 if (function.asyncMarker != AsyncMarker.Sync || nope) { | |
353 function.transformChildren(this); | |
354 return new FunctionExpression(function); | |
355 } | |
350 FunctionNode enclosingFunction = currentFunction; | 356 FunctionNode enclosingFunction = currentFunction; |
351 Map<TypeParameter, DartType> enclosingTypeSubstitution = typeSubstitution; | 357 Map<TypeParameter, DartType> enclosingTypeSubstitution = typeSubstitution; |
352 currentFunction = function; | 358 currentFunction = function; |
353 Statement body = function.body; | 359 Statement body = function.body; |
354 assert(body != null); | 360 assert(body != null); |
355 | 361 |
356 rewriter = makeRewriterForBody(function); | 362 rewriter = makeRewriterForBody(function); |
357 | 363 |
358 VariableDeclaration contextVariable = | 364 VariableDeclaration contextVariable = |
359 new VariableDeclaration("#contextParameter", type: const VectorType()); | 365 new VariableDeclaration("#contextParameter", type: const VectorType()); |
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547 .forEach(extendContextConditionally(inInitializer: false)); | 553 .forEach(extendContextConditionally(inInitializer: false)); |
548 assert(node.body != null); | 554 assert(node.body != null); |
549 node.body = node.body.accept(this); | 555 node.body = node.body.accept(this); |
550 node.body.parent = node; | 556 node.body.parent = node; |
551 return node; | 557 return node; |
552 } | 558 } |
553 | 559 |
554 TreeNode visitBlock(Block node) { | 560 TreeNode visitBlock(Block node) { |
555 return saveContext(() { | 561 return saveContext(() { |
556 BlockRewriter blockRewriter = rewriter = rewriter.forNestedBlock(node); | 562 BlockRewriter blockRewriter = rewriter = rewriter.forNestedBlock(node); |
563 if (node.parent is Statement && | |
564 (node.parent as Statement).isLoop && | |
565 context is! NoContext) { | |
566 context = context.toNestedContext(); | |
567 } | |
557 blockRewriter.transformStatements(this); | 568 blockRewriter.transformStatements(this); |
558 return node; | 569 return node; |
559 }); | 570 }); |
560 } | 571 } |
561 | 572 |
562 TreeNode visitVariableDeclaration(VariableDeclaration node) { | 573 TreeNode visitVariableDeclaration(VariableDeclaration node) { |
563 node.transformChildren(this); | 574 node.transformChildren(this); |
564 | 575 |
565 if (!capturedVariables.contains(node)) return node; | 576 if (!capturedVariables.contains(node)) return node; |
566 if (node.initializer == null && node.parent is FunctionNode) { | 577 if (node.initializer == null && node.parent is FunctionNode) { |
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820 copy.function.body.parent = copy.function; | 831 copy.function.body.parent = copy.function; |
821 return copy; | 832 return copy; |
822 } | 833 } |
823 | 834 |
824 void addGetterForwarder(Name name, Procedure getter) { | 835 void addGetterForwarder(Name name, Procedure getter) { |
825 assert(getter.isGetter); | 836 assert(getter.isGetter); |
826 newClassMembers | 837 newClassMembers |
827 .add(copyWithBody(getter, forwardToThisProperty(getter))..name = name); | 838 .add(copyWithBody(getter, forwardToThisProperty(getter))..name = name); |
828 } | 839 } |
829 } | 840 } |
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