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Issue 9718034: Continue for simple loops (while/for). (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 9 months ago
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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 interface TreeElements { 5 interface TreeElements {
6 Element operator[](Node node); 6 Element operator[](Node node);
7 Selector getSelector(Send send); 7 Selector getSelector(Send send);
8 } 8 }
9 9
10 class TreeElementMapping implements TreeElements { 10 class TreeElementMapping implements TreeElements {
(...skipping 1071 matching lines...) Expand 10 before | Expand all | Expand 10 after
1082 } 1082 }
1083 1083
1084 visitLabeledStatement(LabeledStatement node) { 1084 visitLabeledStatement(LabeledStatement node) {
1085 String labelName = node.label.source.slowToString(); 1085 String labelName = node.label.source.slowToString();
1086 LabelElement existingElement = statementScope.lookupLabel(labelName); 1086 LabelElement existingElement = statementScope.lookupLabel(labelName);
1087 if (existingElement !== null) { 1087 if (existingElement !== null) {
1088 warning(node.label, MessageKind.DUPLICATE_LABEL, [labelName]); 1088 warning(node.label, MessageKind.DUPLICATE_LABEL, [labelName]);
1089 warning(existingElement.label, MessageKind.EXISTING_LABEL, [labelName]); 1089 warning(existingElement.label, MessageKind.EXISTING_LABEL, [labelName]);
1090 } 1090 }
1091 Node body = node.getBody(); 1091 Node body = node.getBody();
1092 TargetElement TargetElement = getOrCreateTargetElement(body); 1092 TargetElement targetElement = getOrCreateTargetElement(body);
1093 1093
1094 LabelElement element = TargetElement.addLabel(node.label, labelName); 1094 LabelElement element = targetElement.addLabel(node.label, labelName);
1095 statementScope.enterLabelScope(element); 1095 statementScope.enterLabelScope(element);
1096 visit(node.statement); 1096 visit(node.statement);
1097 statementScope.exitLabelScope(); 1097 statementScope.exitLabelScope();
1098 if (element.isTarget) { 1098 if (element.isTarget) {
1099 mapping[node.label] = element; 1099 mapping[node.label] = element;
1100 } else { 1100 } else {
1101 warning(node.label, MessageKind.UNUSED_LABEL, [labelName]); 1101 warning(node.label, MessageKind.UNUSED_LABEL, [labelName]);
1102 } 1102 }
1103 if (!TargetElement.isBreakTarget && mapping[body] === TargetElement) { 1103 if (!targetElement.isTarget && mapping[body] === targetElement) {
1104 // If the body is itself a break or continue for another target, it 1104 // If the body is itself a break or continue for another target, it
1105 // might have updated its mapping to the label it actaully does target. 1105 // might have updated its mapping to the target it actaully does target.
ngeoffray 2012/03/19 11:42:06 actaully -> actually
Lasse Reichstein Nielsen 2012/03/19 12:13:58 Done.
1106 mapping.remove(body); 1106 mapping.remove(body);
1107 } 1107 }
1108 } 1108 }
1109 1109
1110 visitLiteralMap(LiteralMap node) { 1110 visitLiteralMap(LiteralMap node) {
1111 node.visitChildren(this); 1111 node.visitChildren(this);
1112 } 1112 }
1113 1113
1114 visitLiteralMapEntry(LiteralMapEntry node) { 1114 visitLiteralMapEntry(LiteralMapEntry node) {
1115 node.visitChildren(this); 1115 node.visitChildren(this);
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1750 1750
1751 TopScope(LibraryElement library) : super(null, library); 1751 TopScope(LibraryElement library) : super(null, library);
1752 Element lookup(SourceString name) { 1752 Element lookup(SourceString name) {
1753 return library.find(name); 1753 return library.find(name);
1754 } 1754 }
1755 1755
1756 Element add(Element element) { 1756 Element add(Element element) {
1757 throw "Cannot add an element in the top scope"; 1757 throw "Cannot add an element in the top scope";
1758 } 1758 }
1759 } 1759 }
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