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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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 dart2js.typechecker; | 5 library dart2js.typechecker; |
| 6 | 6 |
| 7 import 'common/names.dart' show Identifiers; | 7 import 'common/names.dart' show Identifiers; |
| 8 import 'common/resolution.dart' show Resolution; | 8 import 'common/resolution.dart' show Resolution; |
| 9 import 'common/tasks.dart' show CompilerTask; | 9 import 'common/tasks.dart' show CompilerTask; |
| 10 import 'common.dart'; | 10 import 'common.dart'; |
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| 678 DartType visitIdentifier(Identifier node) { | 678 DartType visitIdentifier(Identifier node) { |
| 679 if (node.isThis()) { | 679 if (node.isThis()) { |
| 680 return thisType; | 680 return thisType; |
| 681 } else if (node.isSuper()) { | 681 } else if (node.isSuper()) { |
| 682 return superType; | 682 return superType; |
| 683 } else { | 683 } else { |
| 684 TypedElement element = elements[node]; | 684 TypedElement element = elements[node]; |
| 685 assert(invariant(node, element != null, | 685 assert(invariant(node, element != null, |
| 686 message: 'Missing element for identifier')); | 686 message: 'Missing element for identifier')); |
| 687 assert(invariant( | 687 assert(invariant( |
| 688 node, | 688 node, element.isVariable || element.isParameter || element.isField, |
| 689 element.isVariable || element.isParameter || element.isField, | |
| 690 message: 'Unexpected context element ${element}')); | 689 message: 'Unexpected context element ${element}')); |
| 691 return element.computeType(resolution); | 690 return element.computeType(resolution); |
| 692 } | 691 } |
| 693 } | 692 } |
| 694 | 693 |
| 695 DartType visitIf(If node) { | 694 DartType visitIf(If node) { |
| 696 Expression condition = node.condition.expression; | 695 Expression condition = node.condition.expression; |
| 697 Statement thenPart = node.thenPart; | 696 Statement thenPart = node.thenPart; |
| 698 | 697 |
| 699 checkCondition(node.condition); | 698 checkCondition(node.condition); |
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| 2033 | 2032 |
| 2034 visitTypedef(Typedef node) { | 2033 visitTypedef(Typedef node) { |
| 2035 // Do not typecheck [Typedef] nodes. | 2034 // Do not typecheck [Typedef] nodes. |
| 2036 } | 2035 } |
| 2037 | 2036 |
| 2038 visitNode(Node node) { | 2037 visitNode(Node node) { |
| 2039 reporter.internalError(node, | 2038 reporter.internalError(node, |
| 2040 'Unexpected node ${node.getObjectDescription()} in the type checker.'); | 2039 'Unexpected node ${node.getObjectDescription()} in the type checker.'); |
| 2041 } | 2040 } |
| 2042 } | 2041 } |
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