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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 67 Context* Context::native_context() { | 67 Context* Context::native_context() { |
| 68 // Fast case: the global object for this context has been set. In | 68 // Fast case: the global object for this context has been set. In |
| 69 // that case, the global object has a direct pointer to the global | 69 // that case, the global object has a direct pointer to the global |
| 70 // context. | 70 // context. |
| 71 if (global_object()->IsGlobalObject()) { | 71 if (global_object()->IsGlobalObject()) { |
| 72 return global_object()->native_context(); | 72 return global_object()->native_context(); |
| 73 } | 73 } |
| 74 | 74 |
| 75 // During bootstrapping, the global object might not be set and we | 75 // During bootstrapping, the global object might not be set and we |
| 76 // have to search the context chain to find the native context. | 76 // have to search the context chain to find the native context. |
| 77 ASSERT(Isolate::Current()->bootstrapper()->IsActive()); | 77 ASSERT(this->GetIsolate()->bootstrapper()->IsActive()); |
| 78 Context* current = this; | 78 Context* current = this; |
| 79 while (!current->IsNativeContext()) { | 79 while (!current->IsNativeContext()) { |
| 80 JSFunction* closure = JSFunction::cast(current->closure()); | 80 JSFunction* closure = JSFunction::cast(current->closure()); |
| 81 current = Context::cast(closure->context()); | 81 current = Context::cast(closure->context()); |
| 82 } | 82 } |
| 83 return current; | 83 return current; |
| 84 } | 84 } |
| 85 | 85 |
| 86 | 86 |
| 87 JSObject* Context::global_proxy() { | 87 JSObject* Context::global_proxy() { |
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| 345 // During bootstrapping we allow all objects to pass as | 345 // During bootstrapping we allow all objects to pass as |
| 346 // contexts. This is necessary to fix circular dependencies. | 346 // contexts. This is necessary to fix circular dependencies. |
| 347 if (child->GetIsolate()->bootstrapper()->IsActive()) return true; | 347 if (child->GetIsolate()->bootstrapper()->IsActive()) return true; |
| 348 if (!object->IsContext()) return false; | 348 if (!object->IsContext()) return false; |
| 349 Context* context = Context::cast(object); | 349 Context* context = Context::cast(object); |
| 350 return context->IsNativeContext() || context->IsGlobalContext() || | 350 return context->IsNativeContext() || context->IsGlobalContext() || |
| 351 context->IsModuleContext() || !child->IsModuleContext(); | 351 context->IsModuleContext() || !child->IsModuleContext(); |
| 352 } | 352 } |
| 353 | 353 |
| 354 | 354 |
| 355 bool Context::IsBootstrappingOrGlobalObject(Object* object) { | 355 bool Context::IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object) { |
| 356 // During bootstrapping we allow all objects to pass as global | 356 // During bootstrapping we allow all objects to pass as global |
| 357 // objects. This is necessary to fix circular dependencies. | 357 // objects. This is necessary to fix circular dependencies. |
| 358 Isolate* isolate = Isolate::Current(); | |
| 359 return isolate->heap()->gc_state() != Heap::NOT_IN_GC || | 358 return isolate->heap()->gc_state() != Heap::NOT_IN_GC || |
| 360 isolate->bootstrapper()->IsActive() || | 359 isolate->bootstrapper()->IsActive() || |
| 361 object->IsGlobalObject(); | 360 object->IsGlobalObject(); |
| 362 } | 361 } |
| 363 #endif | 362 #endif |
| 364 | 363 |
| 365 } } // namespace v8::internal | 364 } } // namespace v8::internal |
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