| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "gin/function_template.h" |
| |
| namespace gin { |
| |
| namespace internal { |
| |
| CallbackHolderBase::CallbackHolderBase(v8::Isolate* isolate) |
| : v8_ref_(isolate, v8::External::New(isolate, this)) { |
| v8_ref_.SetWeak(this, &CallbackHolderBase::FirstWeakCallback, |
| v8::WeakCallbackType::kParameter); |
| } |
| |
| CallbackHolderBase::~CallbackHolderBase() { |
| DCHECK(v8_ref_.IsEmpty()); |
| } |
| |
| v8::Local<v8::External> CallbackHolderBase::GetHandle(v8::Isolate* isolate) { |
| return v8::Local<v8::External>::New(isolate, v8_ref_); |
| } |
| |
| // static |
| void CallbackHolderBase::FirstWeakCallback( |
| const v8::WeakCallbackInfo<CallbackHolderBase>& data) { |
| data.GetParameter()->v8_ref_.Reset(); |
| data.SetSecondPassCallback(SecondWeakCallback); |
| } |
| |
| // static |
| void CallbackHolderBase::SecondWeakCallback( |
| const v8::WeakCallbackInfo<CallbackHolderBase>& data) { |
| delete data.GetParameter(); |
| } |
| |
| } // namespace internal |
| |
| } // namespace gin |