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27
28 #ifndef V8_HEAP_SNAPSHOT_GENERATOR_INL_H_
29 #define V8_HEAP_SNAPSHOT_GENERATOR_INL_H_
30
31 #include "heap-snapshot-generator.h"
32
33 namespace v8 {
34 namespace internal {
35
36
from()37 HeapEntry* HeapGraphEdge::from() const {
38 return &snapshot()->entries()[from_index_];
39 }
40
41
snapshot()42 HeapSnapshot* HeapGraphEdge::snapshot() const {
43 return to_entry_->snapshot();
44 }
45
46
index()47 int HeapEntry::index() const {
48 return static_cast<int>(this - &snapshot_->entries().first());
49 }
50
51
set_children_index(int index)52 int HeapEntry::set_children_index(int index) {
53 children_index_ = index;
54 int next_index = index + children_count_;
55 children_count_ = 0;
56 return next_index;
57 }
58
59
children_arr()60 HeapGraphEdge** HeapEntry::children_arr() {
61 ASSERT(children_index_ >= 0);
62 return &snapshot_->children()[children_index_];
63 }
64
65
GetNthGcSubrootId(int delta)66 SnapshotObjectId HeapObjectsMap::GetNthGcSubrootId(int delta) {
67 return kGcRootsFirstSubrootId + delta * kObjectIdStep;
68 }
69
70
GetNthGcSubrootObject(int delta)71 HeapObject* V8HeapExplorer::GetNthGcSubrootObject(int delta) {
72 return reinterpret_cast<HeapObject*>(
73 reinterpret_cast<char*>(kFirstGcSubrootObject) +
74 delta * HeapObjectsMap::kObjectIdStep);
75 }
76
77
GetGcSubrootOrder(HeapObject * subroot)78 int V8HeapExplorer::GetGcSubrootOrder(HeapObject* subroot) {
79 return static_cast<int>(
80 (reinterpret_cast<char*>(subroot) -
81 reinterpret_cast<char*>(kFirstGcSubrootObject)) /
82 HeapObjectsMap::kObjectIdStep);
83 }
84
85 } } // namespace v8::internal
86
87 #endif // V8_HEAP_SNAPSHOT_GENERATOR_INL_H_
88