Move all sources under atom/.
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142
atom/common/api/atom_api_id_weak_map.cc
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142
atom/common/api/atom_api_id_weak_map.cc
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// Copyright (c) 2013 GitHub, Inc. All rights reserved.
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// Copyright (c) 2012 Intel Corp. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "atom/common/api/atom_api_id_weak_map.h"
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#include <algorithm>
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#include "base/logging.h"
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#include "atom/common/v8/native_type_conversions.h"
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#include "atom/common/v8/node_common.h"
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namespace atom {
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namespace api {
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IDWeakMap::IDWeakMap()
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: next_id_(0) {
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}
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IDWeakMap::~IDWeakMap() {
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}
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bool IDWeakMap::Has(int key) const {
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return map_.find(key) != map_.end();
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}
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void IDWeakMap::Erase(int key) {
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if (Has(key))
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map_.erase(key);
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else
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LOG(WARNING) << "Object with key " << key << " is being GCed for twice.";
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}
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int IDWeakMap::GetNextID() {
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return ++next_id_;
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}
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// static
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void IDWeakMap::WeakCallback(v8::Isolate* isolate,
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v8::Persistent<v8::Object>* value,
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IDWeakMap* self) {
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v8::HandleScope handle_scope(isolate);
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v8::Local<v8::Object> local = v8::Local<v8::Object>::New(isolate, *value);
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self->Erase(
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FromV8Value(local->GetHiddenValue(v8::String::New("IDWeakMapKey"))));
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}
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// static
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void IDWeakMap::New(const v8::FunctionCallbackInfo<v8::Value>& args) {
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(new IDWeakMap)->Wrap(args.This());
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}
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// static
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void IDWeakMap::Add(const v8::FunctionCallbackInfo<v8::Value>& args) {
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if (!args[0]->IsObject())
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return node::ThrowTypeError("Bad argument");
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IDWeakMap* self = Unwrap<IDWeakMap>(args.This());
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int key = self->GetNextID();
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v8::Local<v8::Object> v8_value = args[0]->ToObject();
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v8_value->SetHiddenValue(v8::String::New("IDWeakMapKey"), ToV8Value(key));
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self->map_[key] = new RefCountedPersistent<v8::Object>(v8_value);
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self->map_[key]->MakeWeak(self, WeakCallback);
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args.GetReturnValue().Set(key);
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}
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// static
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void IDWeakMap::Get(const v8::FunctionCallbackInfo<v8::Value>& args) {
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int key;
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if (!FromV8Arguments(args, &key))
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return node::ThrowTypeError("Bad argument");
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IDWeakMap* self = Unwrap<IDWeakMap>(args.This());
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if (!self->Has(key))
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return node::ThrowError("Invalid key");
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args.GetReturnValue().Set(self->map_[key]->NewHandle());
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}
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// static
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void IDWeakMap::Has(const v8::FunctionCallbackInfo<v8::Value>& args) {
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int key;
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if (!FromV8Arguments(args, &key))
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return node::ThrowTypeError("Bad argument");
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IDWeakMap* self = Unwrap<IDWeakMap>(args.This());
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args.GetReturnValue().Set(self->Has(key));
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}
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// static
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void IDWeakMap::Keys(const v8::FunctionCallbackInfo<v8::Value>& args) {
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IDWeakMap* self = Unwrap<IDWeakMap>(args.This());
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v8::Local<v8::Array> keys = v8::Array::New(self->map_.size());
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int i = 0;
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for (auto el = self->map_.begin(); el != self->map_.end(); ++el) {
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keys->Set(i, ToV8Value(el->first));
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++i;
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}
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args.GetReturnValue().Set(keys);
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}
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// static
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void IDWeakMap::Remove(const v8::FunctionCallbackInfo<v8::Value>& args) {
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int key;
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if (!FromV8Arguments(args, &key))
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return node::ThrowTypeError("Bad argument");
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IDWeakMap* self = Unwrap<IDWeakMap>(args.This());
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if (!self->Has(key))
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return node::ThrowError("Invalid key");
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self->Erase(key);
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}
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// static
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void IDWeakMap::Initialize(v8::Handle<v8::Object> target) {
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v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(New);
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t->InstanceTemplate()->SetInternalFieldCount(1);
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t->SetClassName(v8::String::NewSymbol("IDWeakMap"));
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NODE_SET_PROTOTYPE_METHOD(t, "add", Add);
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NODE_SET_PROTOTYPE_METHOD(t, "get", Get);
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NODE_SET_PROTOTYPE_METHOD(t, "has", Has);
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NODE_SET_PROTOTYPE_METHOD(t, "keys", Keys);
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NODE_SET_PROTOTYPE_METHOD(t, "remove", Remove);
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target->Set(v8::String::NewSymbol("IDWeakMap"), t->GetFunction());
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}
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} // namespace api
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} // namespace atom
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NODE_MODULE(atom_common_id_weak_map, atom::api::IDWeakMap::Initialize)
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