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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, 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.js_emitter.program_builder; | 5 part of dart2js.js_emitter.program_builder; |
6 | 6 |
7 /** | 7 /** |
8 * Generates the code for all used classes in the program. Static fields (even | 8 * Generates the code for all used classes in the program. Static fields (even |
9 * in classes) are ignored, since they can be treated as non-class elements. | 9 * in classes) are ignored, since they can be treated as non-class elements. |
10 * | 10 * |
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41 final Map<OutputUnit, List<FieldEntity>> outputStaticNonFinalFieldLists = | 41 final Map<OutputUnit, List<FieldEntity>> outputStaticNonFinalFieldLists = |
42 new Map<OutputUnit, List<FieldEntity>>(); | 42 new Map<OutputUnit, List<FieldEntity>>(); |
43 final Map<OutputUnit, Set<LibraryEntity>> outputLibraryLists = | 43 final Map<OutputUnit, Set<LibraryEntity>> outputLibraryLists = |
44 new Map<OutputUnit, Set<LibraryEntity>>(); | 44 new Map<OutputUnit, Set<LibraryEntity>>(); |
45 | 45 |
46 /// True, if the output contains a constant list. | 46 /// True, if the output contains a constant list. |
47 /// | 47 /// |
48 /// This flag is updated in [computeNeededConstants]. | 48 /// This flag is updated in [computeNeededConstants]. |
49 bool outputContainsConstantList = false; | 49 bool outputContainsConstantList = false; |
50 | 50 |
51 final List<ClassElement> nativeClassesAndSubclasses = <ClassElement>[]; | 51 final List<ClassEntity> nativeClassesAndSubclasses = <ClassEntity>[]; |
52 | 52 |
53 List<TypedefEntity> typedefsNeededForReflection; | 53 List<TypedefEntity> typedefsNeededForReflection; |
54 | 54 |
55 Collector( | 55 Collector( |
56 this._options, | 56 this._options, |
57 this._commonElements, | 57 this._commonElements, |
58 this._elementEnvironment, | 58 this._elementEnvironment, |
59 this._deferredLoadTask, | 59 this._deferredLoadTask, |
60 this._worldBuilder, | 60 this._worldBuilder, |
61 this._namer, | 61 this._namer, |
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81 } | 81 } |
82 return classes; | 82 return classes; |
83 } | 83 } |
84 | 84 |
85 /** | 85 /** |
86 * Return a function that returns true if its argument is a class | 86 * Return a function that returns true if its argument is a class |
87 * that needs to be emitted. | 87 * that needs to be emitted. |
88 */ | 88 */ |
89 Function computeClassFilter() { | 89 Function computeClassFilter() { |
90 if (_mirrorsData.isTreeShakingDisabled) { | 90 if (_mirrorsData.isTreeShakingDisabled) { |
91 return (ClassElement cls) => true; | 91 return (ClassEntity cls) => true; |
92 } | 92 } |
93 | 93 |
94 Set<ClassEntity> unneededClasses = new Set<ClassEntity>(); | 94 Set<ClassEntity> unneededClasses = new Set<ClassEntity>(); |
95 // The [Bool] class is not marked as abstract, but has a factory | 95 // The [Bool] class is not marked as abstract, but has a factory |
96 // constructor that always throws. We never need to emit it. | 96 // constructor that always throws. We never need to emit it. |
97 unneededClasses.add(_commonElements.boolClass); | 97 unneededClasses.add(_commonElements.boolClass); |
98 | 98 |
99 // Go over specialized interceptors and then constants to know which | 99 // Go over specialized interceptors and then constants to know which |
100 // interceptors are needed. | 100 // interceptors are needed. |
101 Set<ClassEntity> needed = new Set<ClassEntity>(); | 101 Set<ClassEntity> needed = new Set<ClassEntity>(); |
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129 | 129 |
130 /** | 130 /** |
131 * Compute all the constants that must be emitted. | 131 * Compute all the constants that must be emitted. |
132 */ | 132 */ |
133 void computeNeededConstants() { | 133 void computeNeededConstants() { |
134 // Make sure we retain all metadata of all elements. This could add new | 134 // Make sure we retain all metadata of all elements. This could add new |
135 // constants to the handler. | 135 // constants to the handler. |
136 if (_mirrorsData.mustRetainMetadata) { | 136 if (_mirrorsData.mustRetainMetadata) { |
137 // TODO(floitsch): verify that we don't run through the same elements | 137 // TODO(floitsch): verify that we don't run through the same elements |
138 // multiple times. | 138 // multiple times. |
139 for (MemberElement element in _generatedCode.keys) { | 139 for (MemberEntity element in _generatedCode.keys) { |
140 if (_mirrorsData.isMemberAccessibleByReflection(element)) { | 140 if (_mirrorsData.isMemberAccessibleByReflection(element)) { |
141 _mirrorsData.retainMetadataOfMember(element); | 141 _mirrorsData.retainMetadataOfMember(element); |
142 } | 142 } |
143 } | 143 } |
144 for (ClassElement cls in neededClasses) { | 144 for (ClassEntity cls in neededClasses) { |
145 final onlyForRti = classesOnlyNeededForRti.contains(cls); | 145 final onlyForRti = classesOnlyNeededForRti.contains(cls); |
146 if (!onlyForRti) { | 146 if (!onlyForRti) { |
147 _mirrorsData.retainMetadataOfClass(cls); | 147 _mirrorsData.retainMetadataOfClass(cls); |
148 new FieldVisitor(_options, _elementEnvironment, _worldBuilder, | 148 new FieldVisitor( |
149 _nativeData, _mirrorsData, _namer, _closedWorld) | 149 _options, |
| 150 _elementEnvironment, |
| 151 _commonElements, |
| 152 _worldBuilder, |
| 153 _nativeData, |
| 154 _mirrorsData, |
| 155 _namer, |
| 156 _closedWorld) |
150 .visitFields((FieldEntity member, | 157 .visitFields((FieldEntity member, |
151 js.Name name, | 158 js.Name name, |
152 js.Name accessorName, | 159 js.Name accessorName, |
153 bool needsGetter, | 160 bool needsGetter, |
154 bool needsSetter, | 161 bool needsSetter, |
155 bool needsCheckedSetter) { | 162 bool needsCheckedSetter) { |
156 bool needsAccessor = needsGetter || needsSetter; | 163 bool needsAccessor = needsGetter || needsSetter; |
157 if (needsAccessor && | 164 if (needsAccessor && |
158 _mirrorsData.isMemberAccessibleByReflection(member)) { | 165 _mirrorsData.isMemberAccessibleByReflection(member)) { |
159 _mirrorsData.retainMetadataOfMember(member); | 166 _mirrorsData.retainMetadataOfMember(member); |
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343 } | 350 } |
344 | 351 |
345 void collect() { | 352 void collect() { |
346 computeNeededDeclarations(); | 353 computeNeededDeclarations(); |
347 computeNeededConstants(); | 354 computeNeededConstants(); |
348 computeNeededStatics(); | 355 computeNeededStatics(); |
349 computeNeededStaticNonFinalFields(); | 356 computeNeededStaticNonFinalFields(); |
350 computeNeededLibraries(); | 357 computeNeededLibraries(); |
351 } | 358 } |
352 } | 359 } |
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