v8::internal::PretenuringHandler Class Reference

#include <pretenuring-handler.h>

Collaboration diagram for v8::internal::PretenuringHandler:

Public Types
enum	FindMementoMode { kForRuntime , kForGC }
using	PretenuringFeedbackMap

Public Member Functions
	PretenuringHandler (Heap *heap)
	~PretenuringHandler ()
void	reset ()
void	MergeAllocationSitePretenuringFeedback (const PretenuringFeedbackMap &local_pretenuring_feedback)
V8_EXPORT_PRIVATE void	PretenureAllocationSiteOnNextCollection (Tagged< AllocationSite > site)
void	ProcessPretenuringFeedback (size_t new_space_capacity_before_gc)
void	RemoveAllocationSitePretenuringFeedback (Tagged< AllocationSite > site)
bool	HasPretenuringFeedback () const

Static Public Member Functions
template<FindMementoMode mode>
static Tagged< AllocationMemento >	FindAllocationMemento (Heap *heap, Tagged< Map > map, Tagged< HeapObject > object)
template<FindMementoMode mode>
static Tagged< AllocationMemento >	FindAllocationMemento (Heap *heap, Tagged< Map > map, Tagged< HeapObject > object, int object_size)
static void	UpdateAllocationSite (Heap *heap, Tagged< Map > map, Tagged< HeapObject > object, int object_size, PretenuringFeedbackMap *pretenuring_feedback)
static V8_EXPORT_PRIVATE int	GetMinMementoCountForTesting ()

Static Public Attributes
static constexpr int	kInitialFeedbackCapacity = 256

Private Attributes
Heap *const	heap_
PretenuringFeedbackMap	global_pretenuring_feedback_
std::unique_ptr< GlobalHandleVector< AllocationSite > >	allocation_sites_to_pretenure_

Detailed Description

Definition at line 21 of file pretenuring-handler.h.

Member Typedef Documentation

PretenuringFeedbackMap

using v8::internal::PretenuringHandler::PretenuringFeedbackMap

Initial value:

 
      std::unordered_map<Tagged<AllocationSite>, size_t, Object::Hasher>

Definition at line 25 of file pretenuring-handler.h.

Member Enumeration Documentation

FindMementoMode

enum v8::internal::PretenuringHandler::FindMementoMode

Enumerator
kForRuntime
kForGC

Definition at line 27 of file pretenuring-handler.h.

Constructor & Destructor Documentation

PretenuringHandler()

v8::internal::PretenuringHandler::PretenuringHandler ( Heap * heap )

explicit

Definition at line 19 of file pretenuring-handler.cc.

~PretenuringHandler()

v8::internal::PretenuringHandler::~PretenuringHandler ( )

default

Member Function Documentation

FindAllocationMemento() [1/2]

template<PretenuringHandler::FindMementoMode mode>

Tagged< AllocationMemento > v8::internal::PretenuringHandler::FindAllocationMemento ( Heap * heap, Tagged< Map > map, Tagged< HeapObject > object )

inlinestatic

Definition at line 55 of file pretenuring-handler-inl.h.

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FindAllocationMemento() [2/2]

template<PretenuringHandler::FindMementoMode mode>

Tagged< AllocationMemento > v8::internal::PretenuringHandler::FindAllocationMemento ( Heap * heap, Tagged< Map > map, Tagged< HeapObject > object, int object_size )

inlinestatic

Definition at line 63 of file pretenuring-handler-inl.h.

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GetMinMementoCountForTesting()

int v8::internal::PretenuringHandler::GetMinMementoCountForTesting ( )

static

Definition at line 136 of file pretenuring-handler.cc.

HasPretenuringFeedback()

bool v8::internal::PretenuringHandler::HasPretenuringFeedback ( ) const

inline

Definition at line 77 of file pretenuring-handler.h.

MergeAllocationSitePretenuringFeedback()

void v8::internal::PretenuringHandler::MergeAllocationSitePretenuringFeedback

(

const PretenuringFeedbackMap &

local_pretenuring_feedback

)

Definition at line 140 of file pretenuring-handler.cc.

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PretenureAllocationSiteOnNextCollection()

void v8::internal::PretenuringHandler::PretenureAllocationSiteOnNextCollection

(

Tagged< AllocationSite >

site

)

Definition at line 286 of file pretenuring-handler.cc.

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ProcessPretenuringFeedback()

void v8::internal::PretenuringHandler::ProcessPretenuringFeedback

(

size_t

new_space_capacity_before_gc

)

Definition at line 171 of file pretenuring-handler.cc.

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RemoveAllocationSitePretenuringFeedback()

void v8::internal::PretenuringHandler::RemoveAllocationSitePretenuringFeedback

(

Tagged< AllocationSite >

site

)

Definition at line 166 of file pretenuring-handler.cc.

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reset()

void v8::internal::PretenuringHandler::reset

(

)

Definition at line 295 of file pretenuring-handler.cc.

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UpdateAllocationSite()

void v8::internal::PretenuringHandler::UpdateAllocationSite ( Heap * heap, Tagged< Map > map, Tagged< HeapObject > object, int object_size, PretenuringFeedbackMap * pretenuring_feedback )

inlinestatic

Definition at line 22 of file pretenuring-handler-inl.h.

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Member Data Documentation

allocation_sites_to_pretenure_

std::unique_ptr<GlobalHandleVector<AllocationSite> > v8::internal::PretenuringHandler::allocation_sites_to_pretenure_

private

Definition at line 94 of file pretenuring-handler.h.

global_pretenuring_feedback_

PretenuringFeedbackMap v8::internal::PretenuringHandler::global_pretenuring_feedback_

private

Definition at line 91 of file pretenuring-handler.h.

heap_

Heap* const v8::internal::PretenuringHandler::heap_

private

Definition at line 84 of file pretenuring-handler.h.

kInitialFeedbackCapacity

int v8::internal::PretenuringHandler::kInitialFeedbackCapacity = 256

staticconstexpr

Definition at line 23 of file pretenuring-handler.h.

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

• src/heap/pretenuring-handler.h
• src/heap/pretenuring-handler-inl.h
• src/heap/pretenuring-handler.cc