1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
6 #define V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
7 
8 #include "src/profiler/heap-snapshot-generator.h"
9 
10 namespace v8 {
11 namespace internal {
12 
13 
from()14 HeapEntry* HeapGraphEdge::from() const {
15   return &snapshot()->entries()[from_index()];
16 }
17 
18 
isolate()19 Isolate* HeapGraphEdge::isolate() const {
20   return snapshot()->profiler()->isolate();
21 }
22 
23 
snapshot()24 HeapSnapshot* HeapGraphEdge::snapshot() const {
25   return to_entry_->snapshot();
26 }
27 
28 
index()29 int HeapEntry::index() const {
30   return static_cast<int>(this - &snapshot_->entries().first());
31 }
32 
33 
set_children_index(int index)34 int HeapEntry::set_children_index(int index) {
35   children_index_ = index;
36   int next_index = index + children_count_;
37   children_count_ = 0;
38   return next_index;
39 }
40 
41 
children_arr()42 HeapGraphEdge** HeapEntry::children_arr() {
43   DCHECK(children_index_ >= 0);
44   SLOW_DCHECK(children_index_ < snapshot_->children().length() ||
45       (children_index_ == snapshot_->children().length() &&
46        children_count_ == 0));
47   return &snapshot_->children().first() + children_index_;
48 }
49 
50 
isolate()51 Isolate* HeapEntry::isolate() const { return snapshot_->profiler()->isolate(); }
52 
53 }  // namespace internal
54 }  // namespace v8
55 
56 #endif  // V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
57