40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
// 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.chromium file.
|
|
|
|
#include "native_mate/function_template.h"
|
|
|
|
namespace mate {
|
|
|
|
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 mate
|