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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/api.h" | 5 #include "src/api.h" |
6 | 6 |
7 #include <string.h> // For memcpy, strlen. | 7 #include <string.h> // For memcpy, strlen. |
8 #ifdef V8_USE_ADDRESS_SANITIZER | 8 #ifdef V8_USE_ADDRESS_SANITIZER |
9 #include <sanitizer/asan_interface.h> | 9 #include <sanitizer/asan_interface.h> |
10 #endif // V8_USE_ADDRESS_SANITIZER | 10 #endif // V8_USE_ADDRESS_SANITIZER |
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667 "Escape value set twice"); | 667 "Escape value set twice"); |
668 if (escape_value == NULL) { | 668 if (escape_value == NULL) { |
669 *escape_slot_ = heap->undefined_value(); | 669 *escape_slot_ = heap->undefined_value(); |
670 return NULL; | 670 return NULL; |
671 } | 671 } |
672 *escape_slot_ = *escape_value; | 672 *escape_slot_ = *escape_value; |
673 return escape_slot_; | 673 return escape_slot_; |
674 } | 674 } |
675 | 675 |
676 | 676 |
| 677 SealHandleScope::SealHandleScope(Isolate* isolate) { |
| 678 i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| 679 |
| 680 isolate_ = internal_isolate; |
| 681 i::HandleScopeData* current = internal_isolate->handle_scope_data(); |
| 682 prev_limit_ = current->limit; |
| 683 current->limit = current->next; |
| 684 prev_level_ = current->level; |
| 685 current->level = 0; |
| 686 } |
| 687 |
| 688 |
| 689 SealHandleScope::~SealHandleScope() { |
| 690 i::HandleScopeData* current = isolate_->handle_scope_data(); |
| 691 DCHECK_EQ(0, current->level); |
| 692 current->level = prev_level_; |
| 693 DCHECK_EQ(current->next, current->limit); |
| 694 current->limit = prev_limit_; |
| 695 } |
| 696 |
| 697 |
677 void Context::Enter() { | 698 void Context::Enter() { |
678 i::Handle<i::Context> env = Utils::OpenHandle(this); | 699 i::Handle<i::Context> env = Utils::OpenHandle(this); |
679 i::Isolate* isolate = env->GetIsolate(); | 700 i::Isolate* isolate = env->GetIsolate(); |
680 ENTER_V8(isolate); | 701 ENTER_V8(isolate); |
681 i::HandleScopeImplementer* impl = isolate->handle_scope_implementer(); | 702 i::HandleScopeImplementer* impl = isolate->handle_scope_implementer(); |
682 impl->EnterContext(env); | 703 impl->EnterContext(env); |
683 impl->SaveContext(isolate->context()); | 704 impl->SaveContext(isolate->context()); |
684 isolate->set_context(*env); | 705 isolate->set_context(*env); |
685 } | 706 } |
686 | 707 |
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8079 Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate()); | 8100 Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate()); |
8080 Address callback_address = | 8101 Address callback_address = |
8081 reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback)); | 8102 reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback)); |
8082 VMState<EXTERNAL> state(isolate); | 8103 VMState<EXTERNAL> state(isolate); |
8083 ExternalCallbackScope call_scope(isolate, callback_address); | 8104 ExternalCallbackScope call_scope(isolate, callback_address); |
8084 callback(info); | 8105 callback(info); |
8085 } | 8106 } |
8086 | 8107 |
8087 | 8108 |
8088 } } // namespace v8::internal | 8109 } } // namespace v8::internal |
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