2294a5ce69
They are cached through the app's lifetime, and freeing them at the right time is complicate, so just leak them.
92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
// Copyright (c) 2013 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include <map>
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#include <string>
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#include "atom/common/api/object_life_monitor.h"
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#include "atom/common/node_includes.h"
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#include "base/stl_util.h"
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#include "native_mate/dictionary.h"
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#include "v8/include/v8-profiler.h"
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namespace {
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// A Persistent that can be copied and will not free itself.
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template<class T>
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struct LeakedPersistentTraits {
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typedef v8::Persistent<T, LeakedPersistentTraits<T> > LeakedPersistent;
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static const bool kResetInDestructor = false;
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template<class S, class M>
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static V8_INLINE void Copy(const v8::Persistent<S, M>& source,
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LeakedPersistent* dest) {
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// do nothing, just allow copy
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}
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};
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// The handles are leaked on purpose.
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using FunctionTemplateHandle =
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LeakedPersistentTraits<v8::FunctionTemplate>::LeakedPersistent;
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std::map<std::string, FunctionTemplateHandle> function_templates_;
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v8::Local<v8::Object> CreateObjectWithName(v8::Isolate* isolate,
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const std::string& name) {
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if (name == "Object")
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return v8::Object::New(isolate);
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if (ContainsKey(function_templates_, name))
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return v8::Local<v8::FunctionTemplate>::New(
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isolate, function_templates_[name])->GetFunction()->NewInstance();
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v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(isolate);
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t->SetClassName(mate::StringToV8(isolate, name));
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function_templates_[name] = FunctionTemplateHandle(isolate, t);
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return t->GetFunction()->NewInstance();
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}
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v8::Local<v8::Value> GetHiddenValue(v8::Local<v8::Object> object,
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v8::Local<v8::String> key) {
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return object->GetHiddenValue(key);
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}
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void SetHiddenValue(v8::Local<v8::Object> object,
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v8::Local<v8::String> key,
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v8::Local<v8::Value> value) {
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object->SetHiddenValue(key, value);
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}
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void DeleteHiddenValue(v8::Local<v8::Object> object,
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v8::Local<v8::String> key) {
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object->DeleteHiddenValue(key);
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}
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int32_t GetObjectHash(v8::Local<v8::Object> object) {
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return object->GetIdentityHash();
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}
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void SetDestructor(v8::Isolate* isolate,
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v8::Local<v8::Object> object,
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v8::Local<v8::Function> callback) {
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atom::ObjectLifeMonitor::BindTo(isolate, object, callback);
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}
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void TakeHeapSnapshot(v8::Isolate* isolate) {
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isolate->GetHeapProfiler()->TakeHeapSnapshot();
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}
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void Initialize(v8::Local<v8::Object> exports, v8::Local<v8::Value> unused,
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v8::Local<v8::Context> context, void* priv) {
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mate::Dictionary dict(context->GetIsolate(), exports);
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dict.SetMethod("createObjectWithName", &CreateObjectWithName);
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dict.SetMethod("getHiddenValue", &GetHiddenValue);
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dict.SetMethod("setHiddenValue", &SetHiddenValue);
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dict.SetMethod("deleteHiddenValue", &DeleteHiddenValue);
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dict.SetMethod("getObjectHash", &GetObjectHash);
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dict.SetMethod("setDestructor", &SetDestructor);
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dict.SetMethod("takeHeapSnapshot", &TakeHeapSnapshot);
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}
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} // namespace
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NODE_MODULE_CONTEXT_AWARE_BUILTIN(atom_common_v8_util, Initialize)
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