v8::internal::HeapObjectsSet Class Reference

#include <heap-snapshot-generator.h>

Collaboration diagram for v8::internal::HeapObjectsSet:

Public Member Functions
	HeapObjectsSet ()
void	Clear ()
bool	Contains (Object *object)
void	Insert (Object *obj)
const char *	GetTag (Object *obj)
void	SetTag (Object *obj, const char *tag)
bool	is_empty () const

Private Member Functions
	DISALLOW_COPY_AND_ASSIGN (HeapObjectsSet)

Private Attributes
HashMap	entries_

Detailed Description

Definition at line 302 of file heap-snapshot-generator.h.

Constructor & Destructor Documentation

HeapObjectsSet()

v8::internal::HeapObjectsSet::HeapObjectsSet

(

)

Definition at line 738 of file heap-snapshot-generator.cc.

    : entries_(HashMap::PointersMatch) {
}

Member Function Documentation

Clear()

void v8::internal::HeapObjectsSet::Clear

(

)

Definition at line 743 of file heap-snapshot-generator.cc.

                           {
  entries_.Clear();
}

References v8::internal::TemplateHashMapImpl< AllocationPolicy >::Clear(), and entries_.

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Contains()

bool v8::internal::HeapObjectsSet::Contains

(

Object *

object

)

Definition at line 748 of file heap-snapshot-generator.cc.

                                         {
  if (!obj->IsHeapObject()) return false;
  HeapObject* object = HeapObject::cast(obj);
  return entries_.Lookup(object, HeapEntriesMap::Hash(object), false) != NULL;
}

References entries_, v8::internal::HeapEntriesMap::Hash(), v8::internal::TemplateHashMapImpl< AllocationPolicy >::Lookup(), and NULL.

Referenced by v8::internal::V8HeapExplorer::ExtractFixedArrayReferences(), v8::internal::V8HeapExplorer::SetGcSubrootReference(), and v8::internal::NativeObjectsExplorer::VisitSubtreeWrapper().

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DISALLOW_COPY_AND_ASSIGN()

v8::internal::HeapObjectsSet::DISALLOW_COPY_AND_ASSIGN ( HeapObjectsSet  )

private

GetTag()

const char * v8::internal::HeapObjectsSet::GetTag

(

Object *

obj

)

Definition at line 762 of file heap-snapshot-generator.cc.

                                              {
  HeapObject* object = HeapObject::cast(obj);
  HashMap::Entry* cache_entry =
      entries_.Lookup(object, HeapEntriesMap::Hash(object), false);
  return cache_entry != NULL
      ? reinterpret_cast<const char*>(cache_entry->value)
      : NULL;
}

References entries_, v8::internal::HeapEntriesMap::Hash(), v8::internal::TemplateHashMapImpl< AllocationPolicy >::Lookup(), and NULL.

Referenced by v8::internal::V8HeapExplorer::AddEntry(), and v8::internal::V8HeapExplorer::GetStrongGcSubrootName().

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Insert()

void v8::internal::HeapObjectsSet::Insert

(

Object *

obj

)

Definition at line 755 of file heap-snapshot-generator.cc.

                                       {
  if (!obj->IsHeapObject()) return;
  HeapObject* object = HeapObject::cast(obj);
  entries_.Lookup(object, HeapEntriesMap::Hash(object), true);
}

References entries_, v8::internal::HeapEntriesMap::Hash(), and v8::internal::TemplateHashMapImpl< AllocationPolicy >::Lookup().

Referenced by v8::internal::NativeObjectsExplorer::FillRetainedObjects(), v8::internal::V8HeapExplorer::MarkAsWeakContainer(), and v8::internal::V8HeapExplorer::SetGcSubrootReference().

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is_empty()

bool v8::internal::HeapObjectsSet::is_empty ( ) const

inline

Definition at line 310 of file heap-snapshot-generator.h.

{ return entries_.occupancy() == 0; }

References entries_, and v8::internal::TemplateHashMapImpl< AllocationPolicy >::occupancy().

Referenced by v8::internal::V8HeapExplorer::GetStrongGcSubrootName().

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SetTag()

void v8::internal::HeapObjectsSet::SetTag	(	Object *	obj,
		const char *	tag
	)

Definition at line 772 of file heap-snapshot-generator.cc.

                                                        {
  if (!obj->IsHeapObject()) return;
  HeapObject* object = HeapObject::cast(obj);
  HashMap::Entry* cache_entry =
      entries_.Lookup(object, HeapEntriesMap::Hash(object), true);
  cache_entry->value = const_cast<char*>(tag);
}

References entries_, v8::internal::HeapEntriesMap::Hash(), and v8::internal::TemplateHashMapImpl< AllocationPolicy >::Lookup().

Referenced by v8::internal::V8HeapExplorer::TagGlobalObjects().

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Member Data Documentation

entries_

HashMap v8::internal::HeapObjectsSet::entries_

private

Definition at line 313 of file heap-snapshot-generator.h.

Referenced by Clear(), Contains(), GetTag(), Insert(), is_empty(), and SetTag().

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The documentation for this class was generated from the following files:

• /mnt/V8SourceCode/src/heap-snapshot-generator.h
• /mnt/V8SourceCode/src/heap-snapshot-generator.cc