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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 /** | 5 /** |
| 6 * The [ConstantHandler] keeps track of compile-time constants, | 6 * The [ConstantHandler] keeps track of compile-time constants, |
| 7 * initializations of global and static fields, and default values of | 7 * initializations of global and static fields, and default values of |
| 8 * optional parameters. | 8 * optional parameters. |
| 9 */ | 9 */ |
| 10 class ConstantHandler extends CompilerTask { | 10 class ConstantHandler extends CompilerTask { |
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| 760 } | 760 } |
| 761 | 761 |
| 762 if (!foundSuperOrRedirect) { | 762 if (!foundSuperOrRedirect) { |
| 763 // No super initializer found. Try to find the default constructor if | 763 // No super initializer found. Try to find the default constructor if |
| 764 // the class is not Object. | 764 // the class is not Object. |
| 765 ClassElement enclosingClass = constructor.getEnclosingClass(); | 765 ClassElement enclosingClass = constructor.getEnclosingClass(); |
| 766 ClassElement superClass = enclosingClass.superclass; | 766 ClassElement superClass = enclosingClass.superclass; |
| 767 if (enclosingClass != compiler.objectClass) { | 767 if (enclosingClass != compiler.objectClass) { |
| 768 assert(superClass !== null); | 768 assert(superClass !== null); |
| 769 assert(superClass.resolutionState == STATE_DONE); | 769 assert(superClass.resolutionState == STATE_DONE); |
| 770 | |
| 771 Selector selector = | |
| 772 new Selector.callDefaultConstructor(enclosingClass.getLibrary()); | |
| 773 | |
| 774 FunctionElement targetConstructor = | 770 FunctionElement targetConstructor = |
| 775 superClass.lookupConstructor(selector); | 771 superClass.lookupConstructor(superClass.name); |
| 776 if (targetConstructor === null) { | 772 if (targetConstructor === null) { |
| 777 compiler.internalError("no default constructor available", | 773 compiler.internalError("no default constructor available", |
| 778 node: functionNode); | 774 node: functionNode); |
| 779 } | 775 } |
| 780 | 776 |
| 777 Selector selector = new Selector.call(superClass.name, |
| 778 enclosingClass.getLibrary(), |
| 779 0); |
| 781 evaluateSuperOrRedirectSend(functionNode, | 780 evaluateSuperOrRedirectSend(functionNode, |
| 782 selector, | 781 selector, |
| 783 const Link<Node>(), | 782 const Link<Node>(), |
| 784 targetConstructor); | 783 targetConstructor); |
| 785 } | 784 } |
| 786 } | 785 } |
| 787 } | 786 } |
| 788 | 787 |
| 789 /** | 788 /** |
| 790 * Simulates the execution of the [constructor] with the given | 789 * Simulates the execution of the [constructor] with the given |
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| 807 Constant fieldValue = fieldValues[field]; | 806 Constant fieldValue = fieldValues[field]; |
| 808 if (fieldValue === null) { | 807 if (fieldValue === null) { |
| 809 // Use the default value. | 808 // Use the default value. |
| 810 fieldValue = compiler.compileConstant(field); | 809 fieldValue = compiler.compileConstant(field); |
| 811 } | 810 } |
| 812 jsNewArguments.add(fieldValue); | 811 jsNewArguments.add(fieldValue); |
| 813 }); | 812 }); |
| 814 return jsNewArguments; | 813 return jsNewArguments; |
| 815 } | 814 } |
| 816 } | 815 } |
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