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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 abstract class ConstantVisitor<R> { | 7 abstract class ConstantVisitor<R> { |
| 8 R visitFunction(FunctionConstant constant); | 8 R visitFunction(FunctionConstant constant); |
| 9 R visitNull(NullConstant constant); | 9 R visitNull(NullConstant constant); |
| 10 R visitInt(IntConstant constant); | 10 R visitInt(IntConstant constant); |
| 11 R visitDouble(DoubleConstant constant); | 11 R visitDouble(DoubleConstant constant); |
| 12 R visitTrue(TrueConstant constant); | 12 R visitTrue(TrueConstant constant); |
| 13 R visitFalse(FalseConstant constant); | 13 R visitFalse(FalseConstant constant); |
| 14 R visitString(StringConstant constant); | 14 R visitString(StringConstant constant); |
| 15 R visitList(ListConstant constant); | 15 R visitList(ListConstant constant); |
| 16 R visitMap(MapConstant constant); | 16 R visitMap(MapConstant constant); |
| 17 R visitConstructed(ConstructedConstant constant); | 17 R visitConstructed(ConstructedConstant constant); |
| 18 R visitType(TypeConstant constant); | 18 R visitType(TypeConstant constant); |
| 19 R visitInterceptor(InterceptorConstant constant); | 19 R visitInterceptor(InterceptorConstant constant); |
| 20 R visitDummyReceiver(DummyReceiverConstant constant); | 20 R visitDummy(DummyConstant constant); |
| 21 } | 21 } |
| 22 | 22 |
| 23 abstract class Constant { | 23 abstract class Constant { |
| 24 const Constant(); | 24 const Constant(); |
| 25 | 25 |
| 26 bool isNull() => false; | 26 bool isNull() => false; |
| 27 bool isBool() => false; | 27 bool isBool() => false; |
| 28 bool isTrue() => false; | 28 bool isTrue() => false; |
| 29 bool isFalse() => false; | 29 bool isFalse() => false; |
| 30 bool isInt() => false; | 30 bool isInt() => false; |
| 31 bool isDouble() => false; | 31 bool isDouble() => false; |
| 32 bool isNum() => false; | 32 bool isNum() => false; |
| 33 bool isString() => false; | 33 bool isString() => false; |
| 34 bool isList() => false; | 34 bool isList() => false; |
| 35 bool isMap() => false; | 35 bool isMap() => false; |
| 36 bool isConstructedObject() => false; | 36 bool isConstructedObject() => false; |
| 37 bool isFunction() => false; | 37 bool isFunction() => false; |
| 38 /** Returns true if the constant is null, a bool, a number or a string. */ | 38 /** Returns true if the constant is null, a bool, a number or a string. */ |
| 39 bool isPrimitive() => false; | 39 bool isPrimitive() => false; |
| 40 /** Returns true if the constant is a list, a map or a constructed object. */ | 40 /** Returns true if the constant is a list, a map or a constructed object. */ |
| 41 bool isObject() => false; | 41 bool isObject() => false; |
| 42 bool isType() => false; | 42 bool isType() => false; |
| 43 bool isSentinel() => false; | 43 bool isSentinel() => false; |
| 44 bool isInterceptor() => false; | 44 bool isInterceptor() => false; |
| 45 bool isDummyReceiver() => false; | 45 bool isDummy() => false; |
| 46 | 46 |
| 47 bool isNaN() => false; | 47 bool isNaN() => false; |
| 48 bool isMinusZero() => false; | 48 bool isMinusZero() => false; |
| 49 | 49 |
| 50 // TODO(johnniwinther): Replace with a 'type' getter. | 50 // TODO(johnniwinther): Replace with a 'type' getter. |
| 51 DartType computeType(Compiler compiler); | 51 DartType computeType(Compiler compiler); |
| 52 | 52 |
| 53 ti.TypeMask computeMask(Compiler compiler); | 53 ti.TypeMask computeMask(Compiler compiler); |
| 54 | 54 |
| 55 List<Constant> getDependencies(); | 55 List<Constant> getDependencies(); |
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| 532 | 532 |
| 533 ti.TypeMask computeMask(Compiler compiler) { | 533 ti.TypeMask computeMask(Compiler compiler) { |
| 534 return compiler.typesTask.nonNullType; | 534 return compiler.typesTask.nonNullType; |
| 535 } | 535 } |
| 536 | 536 |
| 537 String toString() { | 537 String toString() { |
| 538 return 'InterceptorConstant(${Error.safeToString(dispatchedType)})'; | 538 return 'InterceptorConstant(${Error.safeToString(dispatchedType)})'; |
| 539 } | 539 } |
| 540 } | 540 } |
| 541 | 541 |
| 542 class DummyReceiverConstant extends Constant { | 542 class DummyConstant extends Constant { |
| 543 final ti.TypeMask typeMask; | 543 final ti.TypeMask typeMask; |
| 544 | 544 |
| 545 DummyReceiverConstant(this.typeMask); | 545 DummyConstant(this.typeMask); |
| 546 | 546 |
| 547 bool isDummyReceiver() => true; | 547 bool isDummy() => true; |
| 548 | 548 |
| 549 bool operator ==(other) { | 549 bool operator ==(other) { |
| 550 return other is DummyReceiverConstant | 550 return other is DummyConstant |
| 551 && typeMask == other.typeMask; | 551 && typeMask == other.typeMask; |
| 552 } | 552 } |
| 553 | 553 |
| 554 get hashCode => typeMask.hashCode; | 554 get hashCode => typeMask.hashCode; |
| 555 | 555 |
| 556 List<Constant> getDependencies() => const <Constant>[]; | 556 List<Constant> getDependencies() => const <Constant>[]; |
| 557 | 557 |
| 558 accept(ConstantVisitor visitor) => visitor.visitDummyReceiver(this); | 558 accept(ConstantVisitor visitor) => visitor.visitDummy(this); |
| 559 | 559 |
| 560 DartType computeType(Compiler compiler) => compiler.types.dynamicType; | 560 DartType computeType(Compiler compiler) => compiler.types.dynamicType; |
| 561 | 561 |
| 562 ti.TypeMask computeMask(Compiler compiler) => typeMask; | 562 ti.TypeMask computeMask(Compiler compiler) => typeMask; |
| 563 | 563 |
| 564 String toString() { | 564 String toString() { |
| 565 return 'DummyReceiverConstant($typeMask)'; | 565 return 'DummyConstant($typeMask)'; |
| 566 } | 566 } |
| 567 } | 567 } |
| 568 | 568 |
| 569 class ConstructedConstant extends ObjectConstant { | 569 class ConstructedConstant extends ObjectConstant { |
| 570 final List<Constant> fields; | 570 final List<Constant> fields; |
| 571 final int hashCode; | 571 final int hashCode; |
| 572 | 572 |
| 573 ConstructedConstant(DartType type, List<Constant> fields) | 573 ConstructedConstant(DartType type, List<Constant> fields) |
| 574 : this.fields = fields, | 574 : this.fields = fields, |
| 575 hashCode = computeHash(type, fields), | 575 hashCode = computeHash(type, fields), |
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| 632 if (i > 0) sb.write(','); | 632 if (i > 0) sb.write(','); |
| 633 sb.write(Error.safeToString(field.name)); | 633 sb.write(Error.safeToString(field.name)); |
| 634 sb.write('='); | 634 sb.write('='); |
| 635 sb.write(Error.safeToString(value)); | 635 sb.write(Error.safeToString(value)); |
| 636 i++; | 636 i++; |
| 637 }); | 637 }); |
| 638 sb.write('))'); | 638 sb.write('))'); |
| 639 return sb.toString(); | 639 return sb.toString(); |
| 640 } | 640 } |
| 641 } | 641 } |
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