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Side by Side Diff: pkg/compiler/lib/src/compile_time_constants.dart

Issue 885313002: Fix new dart2dart backend. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 5 years, 10 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 part of dart2js; 5 part of dart2js;
6 6
7 /// A [ConstantEnvironment] provides access for constants compiled for variable 7 /// A [ConstantEnvironment] provides access for constants compiled for variable
8 /// initializers. 8 /// initializers.
9 abstract class ConstantEnvironment { 9 abstract class ConstantEnvironment {
10 /// Returns the constant for the initializer of [element]. 10 /// Returns the constant for the initializer of [element].
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1041 ClassElement superClass = enclosingClass.superclass; 1041 ClassElement superClass = enclosingClass.superclass;
1042 if (enclosingClass != compiler.objectClass) { 1042 if (enclosingClass != compiler.objectClass) {
1043 assert(superClass != null); 1043 assert(superClass != null);
1044 assert(superClass.resolutionState == STATE_DONE); 1044 assert(superClass.resolutionState == STATE_DONE);
1045 1045
1046 FunctionElement targetConstructor = 1046 FunctionElement targetConstructor =
1047 superClass.lookupDefaultConstructor(); 1047 superClass.lookupDefaultConstructor();
1048 // If we do not find a default constructor, an error was reported 1048 // If we do not find a default constructor, an error was reported
1049 // already and compilation will fail anyway. So just ignore that case. 1049 // already and compilation will fail anyway. So just ignore that case.
1050 if (targetConstructor != null) { 1050 if (targetConstructor != null) {
1051 Selector selector = 1051 Selector selector = new Selector.callDefaultConstructor();
1052 new Selector.callDefaultConstructor(enclosingClass.library);
1053 List<AstConstant> compiledArguments = evaluateArgumentsToConstructor( 1052 List<AstConstant> compiledArguments = evaluateArgumentsToConstructor(
1054 functionNode, selector, const Link<Node>(), targetConstructor); 1053 functionNode, selector, const Link<Node>(), targetConstructor);
1055 evaluateSuperOrRedirectSend(compiledArguments, targetConstructor); 1054 evaluateSuperOrRedirectSend(compiledArguments, targetConstructor);
1056 } 1055 }
1057 } 1056 }
1058 } 1057 }
1059 } 1058 }
1060 1059
1061 /** 1060 /**
1062 * Simulates the execution of the [constructor] with the given 1061 * Simulates the execution of the [constructor] with the given
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1118 ConstantValue get value => expression.value; 1117 ConstantValue get value => expression.value;
1119 1118
1120 String toString() => expression.toString(); 1119 String toString() => expression.toString();
1121 } 1120 }
1122 1121
1123 /// A synthetic constant used to recover from errors. 1122 /// A synthetic constant used to recover from errors.
1124 class ErroneousAstConstant extends AstConstant { 1123 class ErroneousAstConstant extends AstConstant {
1125 ErroneousAstConstant(Element element, Node node) 1124 ErroneousAstConstant(Element element, Node node)
1126 : super(element, node, new ErroneousConstantExpression()); 1125 : super(element, node, new ErroneousConstantExpression());
1127 } 1126 }
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