heap-snapshot-generator-inl.h 1.51 KB
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// Copyright 2013 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
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#ifndef V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
#define V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
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#include "src/profiler/heap-snapshot-generator.h"
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namespace v8 {
namespace internal {


HeapEntry* HeapGraphEdge::from() const {
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  return &snapshot()->entries()[from_index()];
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}


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Isolate* HeapGraphEdge::isolate() const {
  return snapshot()->profiler()->isolate();
}


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HeapSnapshot* HeapGraphEdge::snapshot() const {
  return to_entry_->snapshot();
}


int HeapEntry::index() const {
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  return static_cast<int>(this - &snapshot_->entries().front());
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}


int HeapEntry::set_children_index(int index) {
  children_index_ = index;
  int next_index = index + children_count_;
  children_count_ = 0;
  return next_index;
}

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std::deque<HeapGraphEdge*>::iterator HeapEntry::children_begin() {
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  DCHECK_GE(children_index_, 0);
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  SLOW_DCHECK(
      children_index_ < static_cast<int>(snapshot_->children().size()) ||
      (children_index_ == static_cast<int>(snapshot_->children().size()) &&
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       children_count_ == 0));
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  return snapshot_->children().begin() + children_index_;
}

std::deque<HeapGraphEdge*>::iterator HeapEntry::children_end() {
  return children_begin() + children_count_;
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}


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Isolate* HeapEntry::isolate() const { return snapshot_->profiler()->isolate(); }

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}  // namespace internal
}  // namespace v8
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#endif  // V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_