Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	base_object-inl.h	Lines:	165	172	95.9 %
Date:	2022-05-21 04:15:56	Branches:	65	92	70.7 %


// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

#ifndef SRC_BASE_OBJECT_INL_H_
#define SRC_BASE_OBJECT_INL_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "base_object.h"
#include "env-inl.h"
#include "util.h"

#include "v8.h"

namespace node {

BaseObject::BaseObject(Environment* env, v8::Local<v8::Object> object)
    : persistent_handle_(env->isolate(), object), env_(env) {
  CHECK_EQ(false, object.IsEmpty());
  CHECK_GT(object->InternalFieldCount(), 0);
  object->SetAlignedPointerInInternalField(
      BaseObject::kSlot,
      static_cast<void*>(this));
  env->AddCleanupHook(DeleteMe, static_cast<void*>(this));
  env->modify_base_object_count(1);
}

BaseObject::~BaseObject() {
  env()->modify_base_object_count(-1);
  env()->RemoveCleanupHook(DeleteMe, static_cast<void*>(this));

  if (UNLIKELY(has_pointer_data())) {
    PointerData* metadata = pointer_data();
    CHECK_EQ(metadata->strong_ptr_count, 0);
    metadata->self = nullptr;
    if (metadata->weak_ptr_count == 0)
      delete metadata;
  }

  if (persistent_handle_.IsEmpty()) {
    // This most likely happened because the weak callback below cleared it.
    return;
  }

  {
    v8::HandleScope handle_scope(env()->isolate());
    object()->SetAlignedPointerInInternalField(BaseObject::kSlot, nullptr);
  }
}

void BaseObject::Detach() {
  CHECK_GT(pointer_data()->strong_ptr_count, 0);
  pointer_data()->is_detached = true;
}

v8::Global<v8::Object>& BaseObject::persistent() {
  return persistent_handle_;
}


v8::Local<v8::Object> BaseObject::object() const {
  return PersistentToLocal::Default(env()->isolate(), persistent_handle_);
}

v8::Local<v8::Object> BaseObject::object(v8::Isolate* isolate) const {
  v8::Local<v8::Object> handle = object();

  DCHECK_EQ(handle->GetCreationContext().ToLocalChecked()->GetIsolate(),
            isolate);
  DCHECK_EQ(env()->isolate(), isolate);

  return handle;
}

Environment* BaseObject::env() const {
  return env_;
}

BaseObject* BaseObject::FromJSObject(v8::Local<v8::Value> value) {
  v8::Local<v8::Object> obj = value.As<v8::Object>();
  DCHECK_GE(obj->InternalFieldCount(), BaseObject::kSlot);
  return static_cast<BaseObject*>(
      obj->GetAlignedPointerFromInternalField(BaseObject::kSlot));
}


template <typename T>
T* BaseObject::FromJSObject(v8::Local<v8::Value> object) {
  return static_cast<T*>(FromJSObject(object));
}


void BaseObject::MakeWeak() {
  if (has_pointer_data()) {
    pointer_data()->wants_weak_jsobj = true;
    if (pointer_data()->strong_ptr_count > 0) return;
  }

  persistent_handle_.SetWeak(
      this,
      [](const v8::WeakCallbackInfo<BaseObject>& data) {
        BaseObject* obj = data.GetParameter();
        // Clear the persistent handle so that ~BaseObject() doesn't attempt
        // to mess with internal fields, since the JS object may have
        // transitioned into an invalid state.
        // Refs: https://github.com/nodejs/node/issues/18897
        obj->persistent_handle_.Reset();
        CHECK_IMPLIES(obj->has_pointer_data(),
                      obj->pointer_data()->strong_ptr_count == 0);
        obj->OnGCCollect();
      }, v8::WeakCallbackType::kParameter);
}

void BaseObject::OnGCCollect() {
  delete this;
}

void BaseObject::ClearWeak() {
  if (has_pointer_data())
    pointer_data()->wants_weak_jsobj = false;

  persistent_handle_.ClearWeak();
}

bool BaseObject::IsWeakOrDetached() const {
  if (persistent_handle_.IsWeak()) return true;

  if (!has_pointer_data()) return false;
  const PointerData* pd = const_cast<BaseObject*>(this)->pointer_data();
  return pd->wants_weak_jsobj || pd->is_detached;
}

void BaseObject::LazilyInitializedJSTemplateConstructor(
    const v8::FunctionCallbackInfo<v8::Value>& args) {
  DCHECK(args.IsConstructCall());
  DCHECK_GT(args.This()->InternalFieldCount(), 0);
  args.This()->SetAlignedPointerInInternalField(BaseObject::kSlot, nullptr);
}

v8::Local<v8::FunctionTemplate>
BaseObject::MakeLazilyInitializedJSTemplate(Environment* env) {
  v8::Local<v8::FunctionTemplate> t =
      env->NewFunctionTemplate(LazilyInitializedJSTemplateConstructor);
  t->Inherit(BaseObject::GetConstructorTemplate(env));
  t->InstanceTemplate()->SetInternalFieldCount(
      BaseObject::kInternalFieldCount);
  return t;
}

template <int Field>
void BaseObject::InternalFieldGet(
    v8::Local<v8::String> property,
    const v8::PropertyCallbackInfo<v8::Value>& info) {
  info.GetReturnValue().Set(info.This()->GetInternalField(Field));
}

template <int Field, bool (v8::Value::* typecheck)() const>
void BaseObject::InternalFieldSet(v8::Local<v8::String> property,
                                  v8::Local<v8::Value> value,
                                  const v8::PropertyCallbackInfo<void>& info) {
  // This could be e.g. value->IsFunction().
  CHECK(((*value)->*typecheck)());
  info.This()->SetInternalField(Field, value);
}

bool BaseObject::has_pointer_data() const {
  return pointer_data_ != nullptr;
}

BaseObject::PointerData* BaseObject::pointer_data() {
  if (!has_pointer_data()) {
    PointerData* metadata = new PointerData();
    metadata->wants_weak_jsobj = persistent_handle_.IsWeak();
    metadata->self = this;
    pointer_data_ = metadata;
  }
  CHECK(has_pointer_data());
  return pointer_data_;
}

void BaseObject::decrease_refcount() {
  CHECK(has_pointer_data());
  PointerData* metadata = pointer_data();
  CHECK_GT(metadata->strong_ptr_count, 0);
  unsigned int new_refcount = --metadata->strong_ptr_count;
  if (new_refcount == 0) {
    if (metadata->is_detached) {
      OnGCCollect();
    } else if (metadata->wants_weak_jsobj && !persistent_handle_.IsEmpty()) {
      MakeWeak();
    }
  }
}

void BaseObject::increase_refcount() {
  unsigned int prev_refcount = pointer_data()->strong_ptr_count++;
  if (prev_refcount == 0 && !persistent_handle_.IsEmpty())
    persistent_handle_.ClearWeak();
}

template <typename T, bool kIsWeak>
BaseObject::PointerData*
BaseObjectPtrImpl<T, kIsWeak>::pointer_data() const {
  if (kIsWeak) {
    return data_.pointer_data;
  }
  if (get_base_object() == nullptr) {
    return nullptr;
  }
  return get_base_object()->pointer_data();
}

template <typename T, bool kIsWeak>
BaseObject* BaseObjectPtrImpl<T, kIsWeak>::get_base_object() const {
  if (kIsWeak) {
    if (pointer_data() == nullptr) {
      return nullptr;
    }
    return pointer_data()->self;
  }
  return data_.target;
}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>::~BaseObjectPtrImpl() {
  if (kIsWeak) {
    if (pointer_data() != nullptr &&
        --pointer_data()->weak_ptr_count == 0 &&
        pointer_data()->self == nullptr) {
      delete pointer_data();
    }
  } else if (get() != nullptr) {
    get()->decrease_refcount();
  }
}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl() {
  data_.target = nullptr;
}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(T* target)
  : BaseObjectPtrImpl() {
  if (target == nullptr) return;
  if (kIsWeak) {
    data_.pointer_data = target->pointer_data();
    CHECK_NOT_NULL(pointer_data());
    pointer_data()->weak_ptr_count++;
  } else {
    data_.target = target;
    CHECK_NOT_NULL(pointer_data());
    get()->increase_refcount();
  }
}

template <typename T, bool kIsWeak>
template <typename U, bool kW>
BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(
    const BaseObjectPtrImpl<U, kW>& other)
  : BaseObjectPtrImpl(other.get()) {}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(const BaseObjectPtrImpl& other)
  : BaseObjectPtrImpl(other.get()) {}

template <typename T, bool kIsWeak>
template <typename U, bool kW>
BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
    const BaseObjectPtrImpl<U, kW>& other) {
  if (other.get() == get()) return *this;
  this->~BaseObjectPtrImpl();
  return *new (this) BaseObjectPtrImpl(other);
}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
    const BaseObjectPtrImpl& other) {
  if (other.get() == get()) return *this;
  this->~BaseObjectPtrImpl();
  return *new (this) BaseObjectPtrImpl(other);
}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(BaseObjectPtrImpl&& other)
  : data_(other.data_) {
  if (kIsWeak)
    other.data_.target = nullptr;
  else
    other.data_.pointer_data = nullptr;
}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
    BaseObjectPtrImpl&& other) {
  if (&other == this) return *this;
  this->~BaseObjectPtrImpl();
  return *new (this) BaseObjectPtrImpl(std::move(other));
}

template <typename T, bool kIsWeak>
void BaseObjectPtrImpl<T, kIsWeak>::reset(T* ptr) {
  *this = BaseObjectPtrImpl(ptr);
}

template <typename T, bool kIsWeak>
T* BaseObjectPtrImpl<T, kIsWeak>::get() const {
  return static_cast<T*>(get_base_object());
}

template <typename T, bool kIsWeak>
T& BaseObjectPtrImpl<T, kIsWeak>::operator*() const {
  return *get();
}

template <typename T, bool kIsWeak>
T* BaseObjectPtrImpl<T, kIsWeak>::operator->() const {
  return get();
}

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>::operator bool() const {
  return get() != nullptr;
}

template <typename T, bool kIsWeak>
template <typename U, bool kW>
bool BaseObjectPtrImpl<T, kIsWeak>::operator ==(
    const BaseObjectPtrImpl<U, kW>& other) const {
  return get() == other.get();
}

template <typename T, bool kIsWeak>
template <typename U, bool kW>
bool BaseObjectPtrImpl<T, kIsWeak>::operator !=(
    const BaseObjectPtrImpl<U, kW>& other) const {
  return get() != other.get();
}

template <typename T, typename... Args>
BaseObjectPtr<T> MakeBaseObject(Args&&... args) {
  return BaseObjectPtr<T>(new T(std::forward<Args>(args)...));
}

template <typename T, typename... Args>
BaseObjectPtr<T> MakeDetachedBaseObject(Args&&... args) {
  BaseObjectPtr<T> target = MakeBaseObject<T>(std::forward<Args>(args)...);
  target->Detach();
  return target;
}

}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif  // SRC_BASE_OBJECT_INL_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			// Copyright Joyent, Inc. and other Node contributors.
2			//
3			// Permission is hereby granted, free of charge, to any person obtaining a
4			// copy of this software and associated documentation files (the
5			// "Software"), to deal in the Software without restriction, including
6			// without limitation the rights to use, copy, modify, merge, publish,
7			// distribute, sublicense, and/or sell copies of the Software, and to permit
8			// persons to whom the Software is furnished to do so, subject to the
9			// following conditions:
10			//
11			// The above copyright notice and this permission notice shall be included
12			// in all copies or substantial portions of the Software.
13			//
14			// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15			// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16			// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
17			// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
18			// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19			// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20			// USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22			#ifndef SRC_BASE_OBJECT_INL_H_
23			#define SRC_BASE_OBJECT_INL_H_
24
25			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
26
27			#include "base_object.h"
28			#include "env-inl.h"
29			#include "util.h"
30
31			#include "v8.h"
32
33			namespace node {
34
35		1412371	BaseObject::BaseObject(Environment* env, v8::Local<v8::Object> object)
36		2824742	: persistent_handle_(env->isolate(), object), env_(env) {
37	✗✓	1412371	CHECK_EQ(false, object.IsEmpty());
38	✗✓	1412371	CHECK_GT(object->InternalFieldCount(), 0);
39		1412371	object->SetAlignedPointerInInternalField(
40			BaseObject::kSlot,
41			static_cast<void*>(this));
42		1412371	env->AddCleanupHook(DeleteMe, static_cast<void*>(this));
43		1412371	env->modify_base_object_count(1);
44		1412371	}
45
46	✓✓✓✓	7733278	BaseObject::~BaseObject() {
47		2804772	env()->modify_base_object_count(-1);
48		2804772	env()->RemoveCleanupHook(DeleteMe, static_cast<void*>(this));
49
50	✓✓	2804772	if (UNLIKELY(has_pointer_data())) {
51		379812	PointerData* metadata = pointer_data();
52	✗✓	379812	CHECK_EQ(metadata->strong_ptr_count, 0);
53		379812	metadata->self = nullptr;
54	✓✓	379812	if (metadata->weak_ptr_count == 0)
55		379770	delete metadata;
56			}
57
58	✓✓	2804772	if (persistent_handle_.IsEmpty()) {
59			// This most likely happened because the weak callback below cleared it.
60		2123734	return;
61			}
62
63			{
64		681038	v8::HandleScope handle_scope(env()->isolate());
65		1362076	object()->SetAlignedPointerInInternalField(BaseObject::kSlot, nullptr);
66			}
67			}
68
69		185834	void BaseObject::Detach() {
70	✗✓	185834	CHECK_GT(pointer_data()->strong_ptr_count, 0);
71		185834	pointer_data()->is_detached = true;
72		185834	}
73
74		474148	v8::Global<v8::Object>& BaseObject::persistent() {
75		474148	return persistent_handle_;
76			}
77
78
79		2436088	v8::Local<v8::Object> BaseObject::object() const {
80		2436088	return PersistentToLocal::Default(env()->isolate(), persistent_handle_);
81			}
82
83		111342	v8::Local<v8::Object> BaseObject::object(v8::Isolate* isolate) const {
84		111342	v8::Local<v8::Object> handle = object();
85
86			DCHECK_EQ(handle->GetCreationContext().ToLocalChecked()->GetIsolate(),
87			isolate);
88			DCHECK_EQ(env()->isolate(), isolate);
89
90		111342	return handle;
91			}
92
93		16608726	Environment* BaseObject::env() const {
94		16608726	return env_;
95			}
96
97		9677807	BaseObject* BaseObject::FromJSObject(v8::Local<v8::Value> value) {
98		9677807	v8::Local<v8::Object> obj = value.As<v8::Object>();
99			DCHECK_GE(obj->InternalFieldCount(), BaseObject::kSlot);
100			return static_cast<BaseObject*>(
101		19355614	obj->GetAlignedPointerFromInternalField(BaseObject::kSlot));
102			}
103
104
105			template <typename T>
106		730518	T* BaseObject::FromJSObject(v8::Local<v8::Value> object) {
107		730518	return static_cast<T*>(FromJSObject(object));
108			}
109
110
111		1209735	void BaseObject::MakeWeak() {
112	✓✓	1209735	if (has_pointer_data()) {
113		45879	pointer_data()->wants_weak_jsobj = true;
114	✓✓	45879	if (pointer_data()->strong_ptr_count > 0) return;
115			}
116
117		2419468	persistent_handle_.SetWeak(
118			this,
119		1061866	[](const v8::WeakCallbackInfo<BaseObject>& data) {
120		1061866	BaseObject* obj = data.GetParameter();
121			// Clear the persistent handle so that ~BaseObject() doesn't attempt
122			// to mess with internal fields, since the JS object may have
123			// transitioned into an invalid state.
124			// Refs: https://github.com/nodejs/node/issues/18897
125		1061866	obj->persistent_handle_.Reset();
126	✓✓✗✓ ✗✓	1061866	CHECK_IMPLIES(obj->has_pointer_data(),
127			obj->pointer_data()->strong_ptr_count == 0);
128		1061866	obj->OnGCCollect();
129		1061866	}, v8::WeakCallbackType::kParameter);
130			}
131
132		1245450	void BaseObject::OnGCCollect() {
133	✓✗	1245450	delete this;
134		1245450	}
135
136		2934	void BaseObject::ClearWeak() {
137	✗✓	2934	if (has_pointer_data())
138			pointer_data()->wants_weak_jsobj = false;
139
140		2934	persistent_handle_.ClearWeak();
141		2934	}
142
143			bool BaseObject::IsWeakOrDetached() const {
144			if (persistent_handle_.IsWeak()) return true;
145
146			if (!has_pointer_data()) return false;
147			const PointerData* pd = const_cast<BaseObject*>(this)->pointer_data();
148			return pd->wants_weak_jsobj \|\| pd->is_detached;
149			}
150
151		23848	void BaseObject::LazilyInitializedJSTemplateConstructor(
152			const v8::FunctionCallbackInfo<v8::Value>& args) {
153			DCHECK(args.IsConstructCall());
154			DCHECK_GT(args.This()->InternalFieldCount(), 0);
155		23848	args.This()->SetAlignedPointerInInternalField(BaseObject::kSlot, nullptr);
156		23848	}
157
158			v8::Local<v8::FunctionTemplate>
159		21722	BaseObject::MakeLazilyInitializedJSTemplate(Environment* env) {
160			v8::Local<v8::FunctionTemplate> t =
161		21722	env->NewFunctionTemplate(LazilyInitializedJSTemplateConstructor);
162		21722	t->Inherit(BaseObject::GetConstructorTemplate(env));
163		43444	t->InstanceTemplate()->SetInternalFieldCount(
164			BaseObject::kInternalFieldCount);
165		21722	return t;
166			}
167
168			template <int Field>
169		8	void BaseObject::InternalFieldGet(
170			v8::Local<v8::String> property,
171			const v8::PropertyCallbackInfo<v8::Value>& info) {
172		8	info.GetReturnValue().Set(info.This()->GetInternalField(Field));
173		8	}
174
175			template <int Field, bool (v8::Value::* typecheck)() const>
176		103061	void BaseObject::InternalFieldSet(v8::Local<v8::String> property,
177			v8::Local<v8::Value> value,
178			const v8::PropertyCallbackInfo<void>& info) {
179			// This could be e.g. value->IsFunction().
180	✗✓	103061	CHECK(((value)->typecheck)());
181		103061	info.This()->SetInternalField(Field, value);
182		103061	}
183
184		10613418	bool BaseObject::has_pointer_data() const {
185		10613418	return pointer_data_ != nullptr;
186			}
187
188		3011059	BaseObject::PointerData* BaseObject::pointer_data() {
189	✓✓	3011059	if (!has_pointer_data()) {
190		192026	PointerData* metadata = new PointerData();
191		192026	metadata->wants_weak_jsobj = persistent_handle_.IsWeak();
192		192026	metadata->self = this;
193		192026	pointer_data_ = metadata;
194			}
195	✗✓	3011059	CHECK(has_pointer_data());
196		3011059	return pointer_data_;
197			}
198
199		772043	void BaseObject::decrease_refcount() {
200	✗✓	772043	CHECK(has_pointer_data());
201		772043	PointerData* metadata = pointer_data();
202	✗✓	772043	CHECK_GT(metadata->strong_ptr_count, 0);
203		772043	unsigned int new_refcount = --metadata->strong_ptr_count;
204	✓✓	772043	if (new_refcount == 0) {
205	✓✓	262524	if (metadata->is_detached) {
206		183586	OnGCCollect();
207	✓✓✓✗ ✓✓	78938	} else if (metadata->wants_weak_jsobj && !persistent_handle_.IsEmpty()) {
208		45878	MakeWeak();
209			}
210			}
211		772043	}
212
213		774248	void BaseObject::increase_refcount() {
214		774248	unsigned int prev_refcount = pointer_data()->strong_ptr_count++;
215	✓✓✓✓ ✓✓	774248	if (prev_refcount == 0 && !persistent_handle_.IsEmpty())
216		264630	persistent_handle_.ClearWeak();
217		774248	}
218
219			template <typename T, bool kIsWeak>
220			BaseObject::PointerData*
221		3911744	BaseObjectPtrImpl<T, kIsWeak>::pointer_data() const {
222			if (kIsWeak) {
223		2418864	return data_.pointer_data;
224			}
225	✗✓	1492880	if (get_base_object() == nullptr) {
226			return nullptr;
227			}
228		1492880	return get_base_object()->pointer_data();
229			}
230
231			template <typename T, bool kIsWeak>
232		17596519	BaseObject* BaseObjectPtrImpl<T, kIsWeak>::get_base_object() const {
233			if (kIsWeak) {
234	✓✓	1083810	if (pointer_data() == nullptr) {
235		8	return nullptr;
236			}
237		1083802	return pointer_data()->self;
238			}
239		16512709	return data_.target;
240			}
241
242			template <typename T, bool kIsWeak>
243		3590224	BaseObjectPtrImpl<T, kIsWeak>::~BaseObjectPtrImpl() {
244		3590224	if (kIsWeak) {
245		56572	if (pointer_data() != nullptr &&
246	✓✓✓✓ ✓✓	81524	--pointer_data()->weak_ptr_count == 0 &&
247	✓✓	24952	pointer_data()->self == nullptr) {
248		42	delete pointer_data();
249			}
250	✓✓	3533652	} else if (get() != nullptr) {
251		1348031	get()->decrease_refcount();
252			}
253		3590224	}
254
255			template <typename T, bool kIsWeak>
256		2934279	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl() {
257		2934279	data_.target = nullptr;
258		2934279	}
259
260			template <typename T, bool kIsWeak>
261		2241402	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(T* target)
262		2241402	: BaseObjectPtrImpl() {
263	✓✓	2241402	if (target == nullptr) return;
264			if (kIsWeak) {
265		56562	data_.pointer_data = target->pointer_data();
266	✗✓	56562	CHECK_NOT_NULL(pointer_data());
267		56562	pointer_data()->weak_ptr_count++;
268			} else {
269		1492880	data_.target = target;
270	✗✓	1492880	CHECK_NOT_NULL(pointer_data());
271		1492880	get()->increase_refcount();
272			}
273			}
274
275			template <typename T, bool kIsWeak>
276			template <typename U, bool kW>
277		42540	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(
278			const BaseObjectPtrImpl<U, kW>& other)
279		42540	: BaseObjectPtrImpl(other.get()) {}
280
281			template <typename T, bool kIsWeak>
282		886134	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(const BaseObjectPtrImpl& other)
283		886134	: BaseObjectPtrImpl(other.get()) {}
284
285			template <typename T, bool kIsWeak>
286			template <typename U, bool kW>
287		8	BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
288			const BaseObjectPtrImpl<U, kW>& other) {
289	✗✓	8	if (other.get() == get()) return *this;
290		8	this->~BaseObjectPtrImpl();
291		8	return *new (this) BaseObjectPtrImpl(other);
292			}
293
294			template <typename T, bool kIsWeak>
295		2	BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
296			const BaseObjectPtrImpl& other) {
297	✗✓	2	if (other.get() == get()) return *this;
298		2	this->~BaseObjectPtrImpl();
299		2	return *new (this) BaseObjectPtrImpl(other);
300			}
301
302			template <typename T, bool kIsWeak>
303		924990	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(BaseObjectPtrImpl&& other)
304		924990	: data_(other.data_) {
305		924990	if (kIsWeak)
306			other.data_.target = nullptr;
307			else
308			other.data_.pointer_data = nullptr;
309		924990	}
310
311			template <typename T, bool kIsWeak>
312		449501	BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
313			BaseObjectPtrImpl&& other) {
314	✗✓	449501	if (&other == this) return *this;
315		449501	this->~BaseObjectPtrImpl();
316		449501	return *new (this) BaseObjectPtrImpl(std::move(other));
317			}
318
319			template <typename T, bool kIsWeak>
320		277299	void BaseObjectPtrImpl<T, kIsWeak>::reset(T* ptr) {
321		277299	*this = BaseObjectPtrImpl(ptr);
322		277299	}
323
324			template <typename T, bool kIsWeak>
325		14797135	T* BaseObjectPtrImpl<T, kIsWeak>::get() const {
326		14797135	return static_cast<T*>(get_base_object());
327			}
328
329			template <typename T, bool kIsWeak>
330			T& BaseObjectPtrImpl<T, kIsWeak>::operator*() const {
331			return *get();
332			}
333
334			template <typename T, bool kIsWeak>
335		4222026	T* BaseObjectPtrImpl<T, kIsWeak>::operator->() const {
336		4222026	return get();
337			}
338
339			template <typename T, bool kIsWeak>
340		1354935	BaseObjectPtrImpl<T, kIsWeak>::operator bool() const {
341		1354935	return get() != nullptr;
342			}
343
344			template <typename T, bool kIsWeak>
345			template <typename U, bool kW>
346		11215	bool BaseObjectPtrImpl<T, kIsWeak>::operator ==(
347			const BaseObjectPtrImpl<U, kW>& other) const {
348		11215	return get() == other.get();
349			}
350
351			template <typename T, bool kIsWeak>
352			template <typename U, bool kW>
353			bool BaseObjectPtrImpl<T, kIsWeak>::operator !=(
354			const BaseObjectPtrImpl<U, kW>& other) const {
355			return get() != other.get();
356			}
357
358			template <typename T, typename... Args>
359		40796	BaseObjectPtr<T> MakeBaseObject(Args&&... args) {
360		40796	return BaseObjectPtr<T>(new T(std::forward<Args>(args)...));
361			}
362
363			template <typename T, typename... Args>
364		26799	BaseObjectPtr<T> MakeDetachedBaseObject(Args&&... args) {
365		26799	BaseObjectPtr<T> target = MakeBaseObject<T>(std::forward<Args>(args)...);
366		26799	target->Detach();
367		26799	return target;
368			}
369
370			} // namespace node
371
372			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
373
374			#endif // SRC_BASE_OBJECT_INL_H_