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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	base_object-inl.h	Lines:	101	108	93.5 %
Date:	2022-08-29 04:21:03	Branches:	24	42	57.1 %


// 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 {

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::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;
}

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;
}

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

template <typename T, bool kIsWeak>
BaseObjectPtrImpl<T, kIsWeak>::~BaseObjectPtrImpl() {
  if constexpr (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 constexpr (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 constexpr (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		179513	void BaseObject::Detach() {
36	✗✓	179513	CHECK_GT(pointer_data()->strong_ptr_count, 0);
37		179513	pointer_data()->is_detached = true;
38		179513	}
39
40		464755	v8::Global<v8::Object>& BaseObject::persistent() {
41		464755	return persistent_handle_;
42			}
43
44
45		2487447	v8::Local<v8::Object> BaseObject::object() const {
46		2487447	return PersistentToLocal::Default(env()->isolate(), persistent_handle_);
47			}
48
49		140204	v8::Local<v8::Object> BaseObject::object(v8::Isolate* isolate) const {
50		140204	v8::Local<v8::Object> handle = object();
51
52			DCHECK_EQ(handle->GetCreationContext().ToLocalChecked()->GetIsolate(),
53			isolate);
54			DCHECK_EQ(env()->isolate(), isolate);
55
56		140204	return handle;
57			}
58
59		17025872	Environment* BaseObject::env() const {
60		17025872	return env_;
61			}
62
63		9904774	BaseObject* BaseObject::FromJSObject(v8::Local<v8::Value> value) {
64		9904774	v8::Local<v8::Object> obj = value.As<v8::Object>();
65			DCHECK_GE(obj->InternalFieldCount(), BaseObject::kSlot);
66			return static_cast<BaseObject*>(
67		19809548	obj->GetAlignedPointerFromInternalField(BaseObject::kSlot));
68			}
69
70
71			template <typename T>
72		769485	T* BaseObject::FromJSObject(v8::Local<v8::Value> object) {
73		769485	return static_cast<T*>(FromJSObject(object));
74			}
75
76		1250384	void BaseObject::OnGCCollect() {
77	✓✗	1250384	delete this;
78		1250384	}
79
80		3001	void BaseObject::ClearWeak() {
81	✗✓	3001	if (has_pointer_data())
82			pointer_data()->wants_weak_jsobj = false;
83
84		3001	persistent_handle_.ClearWeak();
85		3001	}
86
87			bool BaseObject::IsWeakOrDetached() const {
88			if (persistent_handle_.IsWeak()) return true;
89
90			if (!has_pointer_data()) return false;
91			const PointerData* pd = const_cast<BaseObject*>(this)->pointer_data();
92			return pd->wants_weak_jsobj \|\| pd->is_detached;
93			}
94
95			template <int Field>
96		8	void BaseObject::InternalFieldGet(
97			v8::Local<v8::String> property,
98			const v8::PropertyCallbackInfo<v8::Value>& info) {
99		8	info.GetReturnValue().Set(info.This()->GetInternalField(Field));
100		8	}
101
102			template <int Field, bool (v8::Value::* typecheck)() const>
103		99260	void BaseObject::InternalFieldSet(v8::Local<v8::String> property,
104			v8::Local<v8::Value> value,
105			const v8::PropertyCallbackInfo<void>& info) {
106			// This could be e.g. value->IsFunction().
107	✗✓	99260	CHECK(((value)->typecheck)());
108		99260	info.This()->SetInternalField(Field, value);
109		99260	}
110
111		10419300	bool BaseObject::has_pointer_data() const {
112		10419300	return pointer_data_ != nullptr;
113			}
114
115			template <typename T, bool kIsWeak>
116			BaseObject::PointerData*
117		3740653	BaseObjectPtrImpl<T, kIsWeak>::pointer_data() const {
118			if constexpr (kIsWeak) {
119		2307254	return data_.pointer_data;
120			}
121	✗✓	1433399	if (get_base_object() == nullptr) {
122			return nullptr;
123			}
124		1433399	return get_base_object()->pointer_data();
125			}
126
127			template <typename T, bool kIsWeak>
128		17114761	BaseObject* BaseObjectPtrImpl<T, kIsWeak>::get_base_object() const {
129			if constexpr (kIsWeak) {
130	✓✓	1041174	if (pointer_data() == nullptr) {
131		8	return nullptr;
132			}
133		1041166	return pointer_data()->self;
134			}
135		16073587	return data_.target;
136			}
137
138			template <typename T, bool kIsWeak>
139		3423973	BaseObjectPtrImpl<T, kIsWeak>::~BaseObjectPtrImpl() {
140			if constexpr (kIsWeak) {
141		50236	if (pointer_data() != nullptr &&
142	✓✓✓✓ ✓✓	74166	--pointer_data()->weak_ptr_count == 0 &&
143	✓✓	23930	pointer_data()->self == nullptr) {
144		38	delete pointer_data();
145			}
146	✓✓	3373737	} else if (get() != nullptr) {
147		1286980	get()->decrease_refcount();
148			}
149		3423973	}
150
151			template <typename T, bool kIsWeak>
152		2813080	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl() {
153		2813080	data_.target = nullptr;
154		2813080	}
155
156			template <typename T, bool kIsWeak>
157		2152104	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(T* target)
158		2152104	: BaseObjectPtrImpl() {
159	✓✓	2152104	if (target == nullptr) return;
160			if constexpr (kIsWeak) {
161		50242	data_.pointer_data = target->pointer_data();
162	✗✓	50242	CHECK_NOT_NULL(pointer_data());
163		50242	pointer_data()->weak_ptr_count++;
164			} else {
165		1433399	data_.target = target;
166	✗✓	1433399	CHECK_NOT_NULL(pointer_data());
167		1433399	get()->increase_refcount();
168			}
169			}
170
171			template <typename T, bool kIsWeak>
172			template <typename U, bool kW>
173		42921	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(
174			const BaseObjectPtrImpl<U, kW>& other)
175		42921	: BaseObjectPtrImpl(other.get()) {}
176
177			template <typename T, bool kIsWeak>
178		855226	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(const BaseObjectPtrImpl& other)
179		855226	: BaseObjectPtrImpl(other.get()) {}
180
181			template <typename T, bool kIsWeak>
182			template <typename U, bool kW>
183		8	BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
184			const BaseObjectPtrImpl<U, kW>& other) {
185	✗✓	8	if (other.get() == get()) return *this;
186		8	this->~BaseObjectPtrImpl();
187		8	return *new (this) BaseObjectPtrImpl(other);
188			}
189
190			template <typename T, bool kIsWeak>
191		2	BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
192			const BaseObjectPtrImpl& other) {
193	✗✓	2	if (other.get() == get()) return *this;
194		2	this->~BaseObjectPtrImpl();
195		2	return *new (this) BaseObjectPtrImpl(other);
196			}
197
198			template <typename T, bool kIsWeak>
199		883245	BaseObjectPtrImpl<T, kIsWeak>::BaseObjectPtrImpl(BaseObjectPtrImpl&& other)
200		883245	: data_(other.data_) {
201			if constexpr (kIsWeak)
202		4	other.data_.target = nullptr;
203			else
204		883241	other.data_.pointer_data = nullptr;
205		883245	}
206
207			template <typename T, bool kIsWeak>
208		426902	BaseObjectPtrImpl<T, kIsWeak>& BaseObjectPtrImpl<T, kIsWeak>::operator=(
209			BaseObjectPtrImpl&& other) {
210	✗✓	426902	if (&other == this) return *this;
211		426902	this->~BaseObjectPtrImpl();
212		426902	return *new (this) BaseObjectPtrImpl(std::move(other));
213			}
214
215			template <typename T, bool kIsWeak>
216		260534	void BaseObjectPtrImpl<T, kIsWeak>::reset(T* ptr) {
217		260534	*this = BaseObjectPtrImpl(ptr);
218		260534	}
219
220			template <typename T, bool kIsWeak>
221		14434159	T* BaseObjectPtrImpl<T, kIsWeak>::get() const {
222		14434159	return static_cast<T*>(get_base_object());
223			}
224
225			template <typename T, bool kIsWeak>
226			T& BaseObjectPtrImpl<T, kIsWeak>::operator*() const {
227			return *get();
228			}
229
230			template <typename T, bool kIsWeak>
231		4121091	T* BaseObjectPtrImpl<T, kIsWeak>::operator->() const {
232		4121091	return get();
233			}
234
235			template <typename T, bool kIsWeak>
236		1235811	BaseObjectPtrImpl<T, kIsWeak>::operator bool() const {
237		1235811	return get() != nullptr;
238			}
239
240			template <typename T, bool kIsWeak>
241			template <typename U, bool kW>
242		11142	bool BaseObjectPtrImpl<T, kIsWeak>::operator ==(
243			const BaseObjectPtrImpl<U, kW>& other) const {
244		11142	return get() == other.get();
245			}
246
247			template <typename T, bool kIsWeak>
248			template <typename U, bool kW>
249			bool BaseObjectPtrImpl<T, kIsWeak>::operator !=(
250			const BaseObjectPtrImpl<U, kW>& other) const {
251			return get() != other.get();
252			}
253
254			template <typename T, typename... Args>
255		40514	BaseObjectPtr<T> MakeBaseObject(Args&&... args) {
256		40514	return BaseObjectPtr<T>(new T(std::forward<Args>(args)...));
257			}
258
259			template <typename T, typename... Args>
260		26766	BaseObjectPtr<T> MakeDetachedBaseObject(Args&&... args) {
261		26766	BaseObjectPtr<T> target = MakeBaseObject<T>(std::forward<Args>(args)...);
262		26766	target->Detach();
263		26766	return target;
264			}
265
266			} // namespace node
267
268			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
269
270			#endif // SRC_BASE_OBJECT_INL_H_