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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 abstract class HType { | 5 abstract class HType { |
| 6 const HType(); | 6 const HType(); |
| 7 | 7 |
| 8 /** | 8 /** |
| 9 * Returns an [HType] that represents [type] and all types that have | 9 * Returns an [HType] that represents [type] and all types that have |
| 10 * [type] as supertype. | 10 * [type] as supertype. |
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| 33 || Elements.isListSupertype(element, compiler)) { | 33 || Elements.isListSupertype(element, compiler)) { |
| 34 return new HBoundedPotentialPrimitiveArray(type, canBeNull); | 34 return new HBoundedPotentialPrimitiveArray(type, canBeNull); |
| 35 } else if (Elements.isStringSupertype(element, compiler)) { | 35 } else if (Elements.isStringSupertype(element, compiler)) { |
| 36 return new HBoundedPotentialPrimitiveString(type, canBeNull); | 36 return new HBoundedPotentialPrimitiveString(type, canBeNull); |
| 37 } else { | 37 } else { |
| 38 return canBeNull ? new HBoundedType.withNull(type) | 38 return canBeNull ? new HBoundedType.withNull(type) |
| 39 : new HBoundedType.nonNull(type); | 39 : new HBoundedType.nonNull(type); |
| 40 } | 40 } |
| 41 } | 41 } |
| 42 | 42 |
| 43 static final HType CONFLICTING = const HConflictingType(); | 43 static const HType CONFLICTING = const HConflictingType(); |
| 44 static final HType UNKNOWN = const HUnknownType(); | 44 static const HType UNKNOWN = const HUnknownType(); |
| 45 static final HType BOOLEAN = const HBooleanType(); | 45 static const HType BOOLEAN = const HBooleanType(); |
| 46 static final HType NUMBER = const HNumberType(); | 46 static const HType NUMBER = const HNumberType(); |
| 47 static final HType INTEGER = const HIntegerType(); | 47 static const HType INTEGER = const HIntegerType(); |
| 48 static final HType DOUBLE = const HDoubleType(); | 48 static const HType DOUBLE = const HDoubleType(); |
| 49 static final HType INDEXABLE_PRIMITIVE = const HIndexablePrimitiveType(); | 49 static const HType INDEXABLE_PRIMITIVE = const HIndexablePrimitiveType(); |
| 50 static final HType STRING = const HStringType(); | 50 static const HType STRING = const HStringType(); |
| 51 static final HType READABLE_ARRAY = const HReadableArrayType(); | 51 static const HType READABLE_ARRAY = const HReadableArrayType(); |
| 52 static final HType MUTABLE_ARRAY = const HMutableArrayType(); | 52 static const HType MUTABLE_ARRAY = const HMutableArrayType(); |
| 53 static final HType EXTENDABLE_ARRAY = const HExtendableArrayType(); | 53 static const HType EXTENDABLE_ARRAY = const HExtendableArrayType(); |
| 54 static final HType NULL = const HNullType(); | 54 static const HType NULL = const HNullType(); |
| 55 | 55 |
| 56 static final HType BOOLEAN_OR_NULL = const HBooleanOrNullType(); | 56 static const HType BOOLEAN_OR_NULL = const HBooleanOrNullType(); |
| 57 static final HType NUMBER_OR_NULL = const HNumberOrNullType(); | 57 static const HType NUMBER_OR_NULL = const HNumberOrNullType(); |
| 58 static final HType INTEGER_OR_NULL = const HIntegerOrNullType(); | 58 static const HType INTEGER_OR_NULL = const HIntegerOrNullType(); |
| 59 static final HType DOUBLE_OR_NULL = const HDoubleOrNullType(); | 59 static const HType DOUBLE_OR_NULL = const HDoubleOrNullType(); |
| 60 static final HType STRING_OR_NULL = const HStringOrNullType(); | 60 static const HType STRING_OR_NULL = const HStringOrNullType(); |
| 61 | 61 |
| 62 bool isConflicting() => this === CONFLICTING; | 62 bool isConflicting() => this === CONFLICTING; |
| 63 bool isUnknown() => this === UNKNOWN; | 63 bool isUnknown() => this === UNKNOWN; |
| 64 bool isNull() => false; | 64 bool isNull() => false; |
| 65 bool isBoolean() => false; | 65 bool isBoolean() => false; |
| 66 bool isNumber() => false; | 66 bool isNumber() => false; |
| 67 bool isInteger() => false; | 67 bool isInteger() => false; |
| 68 bool isDouble() => false; | 68 bool isDouble() => false; |
| 69 bool isString() => false; | 69 bool isString() => false; |
| 70 bool isBooleanOrNull() => false; | 70 bool isBooleanOrNull() => false; |
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| 771 operator [](HInstruction instruction) { | 771 operator [](HInstruction instruction) { |
| 772 HType result = _map[instruction]; | 772 HType result = _map[instruction]; |
| 773 if (result == null) return instruction.guaranteedType; | 773 if (result == null) return instruction.guaranteedType; |
| 774 return result; | 774 return result; |
| 775 } | 775 } |
| 776 | 776 |
| 777 operator []=(HInstruction instruction, HType value) { | 777 operator []=(HInstruction instruction, HType value) { |
| 778 _map[instruction] = value; | 778 _map[instruction] = value; |
| 779 } | 779 } |
| 780 } | 780 } |
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