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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 <stdlib.h> | 5 #include <stdlib.h> |
6 | 6 |
7 #include <fstream> // NOLINT(readability/streams) | 7 #include <fstream> // NOLINT(readability/streams) |
8 #include <sstream> | 8 #include <sstream> |
9 | 9 |
10 #include "src/v8.h" | 10 #include "src/v8.h" |
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2636 | 2636 |
2637 void Isolate::EnqueueMicrotask(Handle<Object> microtask) { | 2637 void Isolate::EnqueueMicrotask(Handle<Object> microtask) { |
2638 DCHECK(microtask->IsJSFunction() || microtask->IsCallHandlerInfo()); | 2638 DCHECK(microtask->IsJSFunction() || microtask->IsCallHandlerInfo()); |
2639 Handle<FixedArray> queue(heap()->microtask_queue(), this); | 2639 Handle<FixedArray> queue(heap()->microtask_queue(), this); |
2640 int num_tasks = pending_microtask_count(); | 2640 int num_tasks = pending_microtask_count(); |
2641 DCHECK(num_tasks <= queue->length()); | 2641 DCHECK(num_tasks <= queue->length()); |
2642 if (num_tasks == 0) { | 2642 if (num_tasks == 0) { |
2643 queue = factory()->NewFixedArray(8); | 2643 queue = factory()->NewFixedArray(8); |
2644 heap()->set_microtask_queue(*queue); | 2644 heap()->set_microtask_queue(*queue); |
2645 } else if (num_tasks == queue->length()) { | 2645 } else if (num_tasks == queue->length()) { |
2646 queue = FixedArray::CopySize(queue, num_tasks * 2); | 2646 queue = factory()->CopyFixedArrayAndGrow(queue, num_tasks); |
2647 heap()->set_microtask_queue(*queue); | 2647 heap()->set_microtask_queue(*queue); |
2648 } | 2648 } |
2649 DCHECK(queue->get(num_tasks)->IsUndefined()); | 2649 DCHECK(queue->get(num_tasks)->IsUndefined()); |
2650 queue->set(num_tasks, *microtask); | 2650 queue->set(num_tasks, *microtask); |
2651 set_pending_microtask_count(num_tasks + 1); | 2651 set_pending_microtask_count(num_tasks + 1); |
2652 } | 2652 } |
2653 | 2653 |
2654 | 2654 |
2655 void Isolate::RunMicrotasks() { | 2655 void Isolate::RunMicrotasks() { |
2656 // Increase call depth to prevent recursive callbacks. | 2656 // Increase call depth to prevent recursive callbacks. |
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2737 } | 2737 } |
2738 | 2738 |
2739 | 2739 |
2740 // Heap::detached_contexts tracks detached contexts as pairs | 2740 // Heap::detached_contexts tracks detached contexts as pairs |
2741 // (number of GC since the context was detached, the context). | 2741 // (number of GC since the context was detached, the context). |
2742 void Isolate::AddDetachedContext(Handle<Context> context) { | 2742 void Isolate::AddDetachedContext(Handle<Context> context) { |
2743 HandleScope scope(this); | 2743 HandleScope scope(this); |
2744 Handle<WeakCell> cell = factory()->NewWeakCell(context); | 2744 Handle<WeakCell> cell = factory()->NewWeakCell(context); |
2745 Handle<FixedArray> detached_contexts(heap()->detached_contexts()); | 2745 Handle<FixedArray> detached_contexts(heap()->detached_contexts()); |
2746 int length = detached_contexts->length(); | 2746 int length = detached_contexts->length(); |
2747 detached_contexts = FixedArray::CopySize(detached_contexts, length + 2); | 2747 detached_contexts = factory()->CopyFixedArrayAndGrow(detached_contexts, 2); |
2748 detached_contexts->set(length, Smi::FromInt(0)); | 2748 detached_contexts->set(length, Smi::FromInt(0)); |
2749 detached_contexts->set(length + 1, *cell); | 2749 detached_contexts->set(length + 1, *cell); |
2750 heap()->set_detached_contexts(*detached_contexts); | 2750 heap()->set_detached_contexts(*detached_contexts); |
2751 } | 2751 } |
2752 | 2752 |
2753 | 2753 |
2754 void Isolate::CheckDetachedContextsAfterGC() { | 2754 void Isolate::CheckDetachedContextsAfterGC() { |
2755 HandleScope scope(this); | 2755 HandleScope scope(this); |
2756 Handle<FixedArray> detached_contexts(heap()->detached_contexts()); | 2756 Handle<FixedArray> detached_contexts(heap()->detached_contexts()); |
2757 int length = detached_contexts->length(); | 2757 int length = detached_contexts->length(); |
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2831 // Then check whether this scope intercepts. | 2831 // Then check whether this scope intercepts. |
2832 if ((flag & intercept_mask_)) { | 2832 if ((flag & intercept_mask_)) { |
2833 intercepted_flags_ |= flag; | 2833 intercepted_flags_ |= flag; |
2834 return true; | 2834 return true; |
2835 } | 2835 } |
2836 return false; | 2836 return false; |
2837 } | 2837 } |
2838 | 2838 |
2839 } // namespace internal | 2839 } // namespace internal |
2840 } // namespace v8 | 2840 } // namespace v8 |
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