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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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.full_emitter; | 5 part of dart2js.js_emitter.full_emitter; |
6 | 6 |
7 class InterceptorEmitter extends CodeEmitterHelper { | 7 class InterceptorEmitter extends CodeEmitterHelper { |
8 final Set<jsAst.Name> interceptorInvocationNames = new Set<jsAst.Name>(); | 8 final Set<jsAst.Name> interceptorInvocationNames = new Set<jsAst.Name>(); |
9 | 9 |
10 void recordMangledNameOfMemberMethod( | 10 void recordMangledNameOfMemberMethod( |
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69 * If [JSInvocationMirror._invokeOn] has been compiled, emit all the | 69 * If [JSInvocationMirror._invokeOn] has been compiled, emit all the |
70 * possible selector names that are intercepted into the | 70 * possible selector names that are intercepted into the |
71 * [interceptedNames] embedded global. The implementation of | 71 * [interceptedNames] embedded global. The implementation of |
72 * [_invokeOn] will use it to determine whether it should call the | 72 * [_invokeOn] will use it to determine whether it should call the |
73 * method with an extra parameter. | 73 * method with an extra parameter. |
74 */ | 74 */ |
75 jsAst.ObjectInitializer generateInterceptedNamesSet() { | 75 jsAst.ObjectInitializer generateInterceptedNamesSet() { |
76 // We could also generate the list of intercepted names at | 76 // We could also generate the list of intercepted names at |
77 // runtime, by running through the subclasses of Interceptor | 77 // runtime, by running through the subclasses of Interceptor |
78 // (which can easily be identified). | 78 // (which can easily be identified). |
79 if (!compiler.enabledInvokeOn) return null; | 79 if (!backend.hasInvokeOnSupport) return null; |
80 | 80 |
81 Iterable<jsAst.Name> invocationNames = interceptorInvocationNames.toList() | 81 Iterable<jsAst.Name> invocationNames = interceptorInvocationNames.toList() |
82 ..sort(); | 82 ..sort(); |
83 ; | 83 ; |
84 List<jsAst.Property> properties = invocationNames.map((jsAst.Name name) { | 84 List<jsAst.Property> properties = invocationNames.map((jsAst.Name name) { |
85 return new jsAst.Property(js.quoteName(name), js.number(1)); | 85 return new jsAst.Property(js.quoteName(name), js.number(1)); |
86 }).toList(); | 86 }).toList(); |
87 return new jsAst.ObjectInitializer(properties, isOneLiner: true); | 87 return new jsAst.ObjectInitializer(properties, isOneLiner: true); |
88 } | 88 } |
89 | 89 |
90 /** | 90 /** |
91 * Emit initializer for `typeToInterceptorMap` data structure used by | 91 * Emit initializer for `typeToInterceptorMap` data structure used by |
92 * `findInterceptorForType`. See declaration of `typeToInterceptor` in | 92 * `findInterceptorForType`. See declaration of `typeToInterceptor` in |
93 * `interceptors.dart`. | 93 * `interceptors.dart`. |
94 */ | 94 */ |
95 jsAst.Statement buildTypeToInterceptorMap(Program program) { | 95 jsAst.Statement buildTypeToInterceptorMap(Program program) { |
96 jsAst.Expression array = program.typeToInterceptorMap; | 96 jsAst.Expression array = program.typeToInterceptorMap; |
97 if (array == null) return js.comment("Empty type-to-interceptor map."); | 97 if (array == null) return js.comment("Empty type-to-interceptor map."); |
98 | 98 |
99 jsAst.Expression typeToInterceptorMap = emitter | 99 jsAst.Expression typeToInterceptorMap = emitter |
100 .generateEmbeddedGlobalAccess(embeddedNames.TYPE_TO_INTERCEPTOR_MAP); | 100 .generateEmbeddedGlobalAccess(embeddedNames.TYPE_TO_INTERCEPTOR_MAP); |
101 return js.statement('# = #', [typeToInterceptorMap, array]); | 101 return js.statement('# = #', [typeToInterceptorMap, array]); |
102 } | 102 } |
103 } | 103 } |
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