blob: 7b85170ad5e2258b6d8c48dd1d0c06c9490ae239 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
// 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::Handle<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
|
