v8::internal::DeferredHandleScope Class Reference

#include <handles.h>

Collaboration diagram for v8::internal::DeferredHandleScope:

Public Member Functions
	DeferredHandleScope (Isolate *isolate)
DeferredHandles *	Detach ()
	~DeferredHandleScope ()

Private Attributes
Object **	prev_limit_
Object **	prev_next_
HandleScopeImplementer *	impl_

Friends
class	HandleScopeImplementer

Detailed Description

Definition at line 244 of file handles.h.

Constructor & Destructor Documentation

DeferredHandleScope()

v8::internal::DeferredHandleScope::DeferredHandleScope ( Isolate *  isolate )

explicit

Definition at line 92 of file handles.cc.

    : impl_(isolate->handle_scope_implementer()) {
  impl_->BeginDeferredScope();
  HandleScopeData* data = impl_->isolate()->handle_scope_data();
  Object** new_next = impl_->GetSpareOrNewBlock();
  Object** new_limit = &new_next[kHandleBlockSize];
  DCHECK(data->limit == &impl_->blocks()->last()[kHandleBlockSize]);
  impl_->blocks()->Add(new_next);
 
#ifdef DEBUG
  prev_level_ = data->level;
#endif
  data->level++;
  prev_limit_ = data->limit;
  prev_next_ = data->next;
  data->next = new_next;
  data->limit = new_limit;
}

References v8::internal::HandleScopeImplementer::BeginDeferredScope(), v8::internal::HandleScopeImplementer::blocks(), DCHECK, v8::internal::HandleScopeImplementer::GetSpareOrNewBlock(), v8::internal::Isolate::handle_scope_data(), impl_, v8::internal::HandleScopeImplementer::isolate(), v8::internal::kHandleBlockSize, v8::internal::HandleScopeData::level, v8::internal::HandleScopeData::limit, v8::internal::HandleScopeData::next, prev_limit_, and prev_next_.

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~DeferredHandleScope()

v8::internal::DeferredHandleScope::~DeferredHandleScope

(

)

Definition at line 112 of file handles.cc.

                                          {
  impl_->isolate()->handle_scope_data()->level--;
  DCHECK(handles_detached_);
  DCHECK(impl_->isolate()->handle_scope_data()->level == prev_level_);
}

References DCHECK, v8::internal::Isolate::handle_scope_data(), impl_, v8::internal::HandleScopeImplementer::isolate(), and v8::internal::HandleScopeData::level.

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Member Function Documentation

Detach()

DeferredHandles * v8::internal::DeferredHandleScope::Detach

(

)

Definition at line 119 of file handles.cc.

                                             {
  DeferredHandles* deferred = impl_->Detach(prev_limit_);
  HandleScopeData* data = impl_->isolate()->handle_scope_data();
  data->next = prev_next_;
  data->limit = prev_limit_;
#ifdef DEBUG
  handles_detached_ = true;
#endif
  return deferred;
}

References v8::internal::HandleScopeImplementer::Detach(), v8::internal::Isolate::handle_scope_data(), impl_, v8::internal::HandleScopeImplementer::isolate(), v8::internal::HandleScopeData::limit, v8::internal::HandleScopeData::next, prev_limit_, and prev_next_.

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Friends And Related Function Documentation

HandleScopeImplementer

friend class HandleScopeImplementer

friend

Definition at line 263 of file handles.h.

Member Data Documentation

impl_

HandleScopeImplementer* v8::internal::DeferredHandleScope::impl_

private

Definition at line 256 of file handles.h.

Referenced by DeferredHandleScope(), Detach(), and ~DeferredHandleScope().

prev_limit_

Object** v8::internal::DeferredHandleScope::prev_limit_

private

Definition at line 254 of file handles.h.

Referenced by DeferredHandleScope(), and Detach().

prev_next_

Object** v8::internal::DeferredHandleScope::prev_next_

private

Definition at line 255 of file handles.h.

Referenced by DeferredHandleScope(), and Detach().

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

• /mnt/V8SourceCode/src/handles.h
• /mnt/V8SourceCode/src/handles.cc