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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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 library dart2js.js_emitter.native_generator; | 5 library dart2js.js_emitter.native_generator; |
| 6 | 6 |
| 7 import 'package:js_runtime/shared/embedded_names.dart' as embeddedNames; | 7 import 'package:js_runtime/shared/embedded_names.dart' as embeddedNames; |
| 8 | 8 |
| 9 import '../js/js.dart' as jsAst; | 9 import '../js/js.dart' as jsAst; |
| 10 import '../js/js.dart' show js; | 10 import '../js/js.dart' show js; |
| 11 import '../js_backend/backend_usage.dart' show BackendUsage; | 11 import '../js_backend/backend_usage.dart' show BackendUsage; |
| 12 | 12 |
| 13 import 'model.dart'; | 13 import 'model.dart'; |
| 14 | 14 |
| 15 class NativeGenerator { | 15 class NativeGenerator { |
| 16 static bool needsIsolateAffinityTagInitialization(BackendUsage backendUsage) { | 16 static bool needsIsolateAffinityTagInitialization(BackendUsage backendUsage) { |
| 17 return backendUsage.needToInitializeIsolateAffinityTag; | 17 return backendUsage.needToInitializeIsolateAffinityTag; |
| 18 } | 18 } |
| 19 | 19 |
| 20 /// Generates the code for isolate affinity tags. | 20 /// Generates the code for isolate affinity tags. |
| 21 /// | 21 /// |
| 22 /// Independently Dart programs on the same page must not interfer and | 22 /// Independently Dart programs on the same page must not interfere and |
| 23 /// this code sets up the variables needed to guarantee that behavior. | 23 /// this code sets up the variables needed to guarantee that behavior. |
| 24 static jsAst.Statement generateIsolateAffinityTagInitialization( | 24 static jsAst.Statement generateIsolateAffinityTagInitialization( |
| 25 BackendUsage backendUsage, | 25 BackendUsage backendUsage, |
| 26 jsAst.Expression generateEmbeddedGlobalAccess(String global), | 26 jsAst.Expression generateEmbeddedGlobalAccess(String global), |
| 27 jsAst.Expression internStringFunction) { | 27 jsAst.Expression internStringFunction) { |
| 28 assert(backendUsage.needToInitializeIsolateAffinityTag); | 28 assert(backendUsage.needToInitializeIsolateAffinityTag); |
| 29 | 29 |
| 30 jsAst.Expression getIsolateTagAccess = | 30 jsAst.Expression getIsolateTagAccess = |
| 31 generateEmbeddedGlobalAccess(embeddedNames.GET_ISOLATE_TAG); | 31 generateEmbeddedGlobalAccess(embeddedNames.GET_ISOLATE_TAG); |
| 32 jsAst.Expression isolateTagAccess = | 32 jsAst.Expression isolateTagAccess = |
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| 209 'info': infoAccess, | 209 'info': infoAccess, |
| 210 'constructor': constructorAccess, | 210 'constructor': constructorAccess, |
| 211 'subclassRead': subclassRead, | 211 'subclassRead': subclassRead, |
| 212 'interceptorsByTagAccess': interceptorsByTagAccess, | 212 'interceptorsByTagAccess': interceptorsByTagAccess, |
| 213 'leafTagsAccess': leafTagsAccess, | 213 'leafTagsAccess': leafTagsAccess, |
| 214 'nativeSuperclassTagName': embeddedNames.NATIVE_SUPERCLASS_TAG_NAME, | 214 'nativeSuperclassTagName': embeddedNames.NATIVE_SUPERCLASS_TAG_NAME, |
| 215 'allowNativesSubclassing': true | 215 'allowNativesSubclassing': true |
| 216 }); | 216 }); |
| 217 } | 217 } |
| 218 } | 218 } |
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