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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 js_backend; | 5 part of js_backend; |
6 | 6 |
7 class ConstantEmitter { | 7 class ConstantEmitter { |
8 ConstantReferenceEmitter _referenceEmitter; | 8 ConstantReferenceEmitter _referenceEmitter; |
9 ConstantInitializerEmitter _initializerEmitter; | 9 ConstantInitializerEmitter _initializerEmitter; |
10 | 10 |
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138 } | 138 } |
139 | 139 |
140 jsAst.Expression visitConstructed(ConstructedConstant constant) { | 140 jsAst.Expression visitConstructed(ConstructedConstant constant) { |
141 return emitCanonicalVersion(constant); | 141 return emitCanonicalVersion(constant); |
142 } | 142 } |
143 | 143 |
144 jsAst.Expression visitInterceptor(InterceptorConstant constant) { | 144 jsAst.Expression visitInterceptor(InterceptorConstant constant) { |
145 return emitCanonicalVersion(constant); | 145 return emitCanonicalVersion(constant); |
146 } | 146 } |
147 | 147 |
148 jsAst.Expression visitDummyReceiver(DummyReceiverConstant constant) { | 148 jsAst.Expression visitDummy(DummyConstant constant) { |
149 return new jsAst.LiteralNumber('0'); | 149 return new jsAst.LiteralNumber('0'); |
150 } | 150 } |
151 } | 151 } |
152 | 152 |
153 /** | 153 /** |
154 * Visitor for generating JavaScript expressions to initialize [Constant]s. | 154 * Visitor for generating JavaScript expressions to initialize [Constant]s. |
155 * Do not use directly; use methods from [ConstantEmitter]. | 155 * Do not use directly; use methods from [ConstantEmitter]. |
156 */ | 156 */ |
157 class ConstantInitializerEmitter implements ConstantVisitor<jsAst.Expression> { | 157 class ConstantInitializerEmitter implements ConstantVisitor<jsAst.Expression> { |
158 final Compiler compiler; | 158 final Compiler compiler; |
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311 [typeName]); | 311 [typeName]); |
312 } | 312 } |
313 | 313 |
314 jsAst.Expression visitInterceptor(InterceptorConstant constant) { | 314 jsAst.Expression visitInterceptor(InterceptorConstant constant) { |
315 return new jsAst.PropertyAccess.field( | 315 return new jsAst.PropertyAccess.field( |
316 new jsAst.VariableUse( | 316 new jsAst.VariableUse( |
317 getJsConstructor(constant.dispatchedType.element)), | 317 getJsConstructor(constant.dispatchedType.element)), |
318 'prototype'); | 318 'prototype'); |
319 } | 319 } |
320 | 320 |
321 jsAst.Expression visitDummyReceiver(DummyReceiverConstant constant) { | 321 jsAst.Expression visitDummy(DummyConstant constant) { |
322 return _reference(constant); | 322 return _reference(constant); |
323 } | 323 } |
324 | 324 |
325 jsAst.Expression visitConstructed(ConstructedConstant constant) { | 325 jsAst.Expression visitConstructed(ConstructedConstant constant) { |
326 Element element = constant.type.element; | 326 Element element = constant.type.element; |
327 if (element.isForeign(compiler) | 327 if (element.isForeign(compiler) |
328 && element.name == 'JS_CONST') { | 328 && element.name == 'JS_CONST') { |
329 StringConstant str = constant.fields[0]; | 329 StringConstant str = constant.fields[0]; |
330 String value = str.value.slowToString(); | 330 String value = str.value.slowToString(); |
331 return new jsAst.LiteralExpression(stripComments(value)); | 331 return new jsAst.LiteralExpression(stripComments(value)); |
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360 .map((DartType type) => | 360 .map((DartType type) => |
361 rti.getTypeRepresentationWithHashes(type, (_){})); | 361 rti.getTypeRepresentationWithHashes(type, (_){})); |
362 jsAst.Expression argumentList = | 362 jsAst.Expression argumentList = |
363 new jsAst.LiteralString('[${arguments.join(', ')}]'); | 363 new jsAst.LiteralString('[${arguments.join(', ')}]'); |
364 return new jsAst.Call(getHelperProperty(backend.getSetRuntimeTypeInfo()), | 364 return new jsAst.Call(getHelperProperty(backend.getSetRuntimeTypeInfo()), |
365 [value, argumentList]); | 365 [value, argumentList]); |
366 } | 366 } |
367 return value; | 367 return value; |
368 } | 368 } |
369 } | 369 } |
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