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1 | /**************************************************************************** | - |
2 | ** | - |
3 | ** Copyright (C) 2016 The Qt Company Ltd. | - |
4 | ** Contact: https://www.qt.io/licensing/ | - |
5 | ** | - |
6 | ** This file is part of the QtQml module of the Qt Toolkit. | - |
7 | ** | - |
8 | ** $QT_BEGIN_LICENSE:LGPL$ | - |
9 | ** Commercial License Usage | - |
10 | ** Licensees holding valid commercial Qt licenses may use this file in | - |
11 | ** accordance with the commercial license agreement provided with the | - |
12 | ** Software or, alternatively, in accordance with the terms contained in | - |
13 | ** a written agreement between you and The Qt Company. For licensing terms | - |
14 | ** and conditions see https://www.qt.io/terms-conditions. For further | - |
15 | ** information use the contact form at https://www.qt.io/contact-us. | - |
16 | ** | - |
17 | ** GNU Lesser General Public License Usage | - |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser | - |
19 | ** General Public License version 3 as published by the Free Software | - |
20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the | - |
21 | ** packaging of this file. Please review the following information to | - |
22 | ** ensure the GNU Lesser General Public License version 3 requirements | - |
23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. | - |
24 | ** | - |
25 | ** GNU General Public License Usage | - |
26 | ** Alternatively, this file may be used under the terms of the GNU | - |
27 | ** General Public License version 2.0 or (at your option) the GNU General | - |
28 | ** Public license version 3 or any later version approved by the KDE Free | - |
29 | ** Qt Foundation. The licenses are as published by the Free Software | - |
30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 | - |
31 | ** included in the packaging of this file. Please review the following | - |
32 | ** information to ensure the GNU General Public License requirements will | - |
33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and | - |
34 | ** https://www.gnu.org/licenses/gpl-3.0.html. | - |
35 | ** | - |
36 | ** $QT_END_LICENSE$ | - |
37 | ** | - |
38 | ****************************************************************************/ | - |
39 | #ifndef QMLJS_MANAGED_H | - |
40 | #define QMLJS_MANAGED_H | - |
41 | - | |
42 | // | - |
43 | // W A R N I N G | - |
44 | // ------------- | - |
45 | // | - |
46 | // This file is not part of the Qt API. It exists purely as an | - |
47 | // implementation detail. This header file may change from version to | - |
48 | // version without notice, or even be removed. | - |
49 | // | - |
50 | // We mean it. | - |
51 | // | - |
52 | - | |
53 | #include "qv4global_p.h" | - |
54 | #include "qv4value_p.h" | - |
55 | #include "qv4enginebase_p.h" | - |
56 | #include <private/qv4heap_p.h> | - |
57 | #include <private/qv4writebarrier_p.h> | - |
58 | #include <private/qv4vtable_p.h> | - |
59 | - | |
60 | QT_BEGIN_NAMESPACE | - |
61 | - | |
62 | namespace QV4 { | - |
63 | - | |
64 | #define Q_MANAGED_CHECK \ | - |
65 | template <typename Type> inline void qt_check_for_QMANAGED_macro(const Type *_q_argument) const \ | - |
66 | { int i = qYouForgotTheQ_MANAGED_Macro(this, _q_argument); i = i + 1; } | - |
67 | - | |
68 | template <typename T> | - |
69 | inline int qYouForgotTheQ_MANAGED_Macro(T, T) { return 0; } executed 19739283 times by 154 tests: return 0; Executed by:
| 19739283 |
70 | - | |
71 | template <typename T1, typename T2> | - |
72 | inline void qYouForgotTheQ_MANAGED_Macro(T1, T2) {} | - |
73 | - | |
74 | #define V4_MANAGED_SIZE_TEST void __dataTest() { static_assert (sizeof(*this) == sizeof(Managed), "Classes derived from Managed can't have own data members."); } | - |
75 | - | |
76 | #define V4_NEEDS_DESTROY static void virtualDestroy(QV4::Heap::Base *b) { static_cast<Data *>(b)->destroy(); } | - |
77 | - | |
78 | - | |
79 | #define V4_MANAGED_ITSELF(DataClass, superClass) \ | - |
80 | public: \ | - |
81 | Q_MANAGED_CHECK \ | - |
82 | typedef QV4::Heap::DataClass Data; \ | - |
83 | typedef superClass SuperClass; \ | - |
84 | static const QV4::VTable static_vtbl; \ | - |
85 | static inline const QV4::VTable *staticVTable() { return &static_vtbl; } \ | - |
86 | V4_MANAGED_SIZE_TEST \ | - |
87 | QV4::Heap::DataClass *d_unchecked() const { return static_cast<QV4::Heap::DataClass *>(m()); } \ | - |
88 | QV4::Heap::DataClass *d() const { \ | - |
89 | QV4::Heap::DataClass *dptr = d_unchecked(); \ | - |
90 | dptr->_checkIsInitialized(); \ | - |
91 | return dptr; \ | - |
92 | } | - |
93 | - | |
94 | #define V4_MANAGED(DataClass, superClass) \ | - |
95 | private: \ | - |
96 | DataClass() Q_DECL_EQ_DELETE; \ | - |
97 | Q_DISABLE_COPY(DataClass) \ | - |
98 | V4_MANAGED_ITSELF(DataClass, superClass) \ | - |
99 | Q_STATIC_ASSERT(std::is_trivial< QV4::Heap::DataClass >::value); | - |
100 | - | |
101 | #define Q_MANAGED_TYPE(type) \ | - |
102 | public: \ | - |
103 | enum { MyType = Type_##type }; | - |
104 | - | |
105 | #define V4_INTERNALCLASS(c) \ | - |
106 | static Heap::InternalClass *defaultInternalClass(QV4::EngineBase *e) \ | - |
107 | { return e->internalClasses(QV4::EngineBase::Class_##c); } | - |
108 | - | |
109 | struct Q_QML_PRIVATE_EXPORT Managed : Value, VTableBase | - |
110 | { | - |
111 | V4_MANAGED_ITSELF(Base, Managed) never executed: end of block never executed: end of block never executed: return &static_vtbl; executed 1547909825 times by 154 tests: return static_cast<QV4::Heap::Base *>(m()); Executed by:
executed 1541424663 times by 154 tests: return dptr; Executed by:
| 0-1547909825 |
112 | enum { | - |
113 | IsExecutionContext = false, | - |
114 | IsString = false, | - |
115 | IsStringOrSymbol = false, | - |
116 | IsObject = false, | - |
117 | IsFunctionObject = false, | - |
118 | IsErrorObject = false, | - |
119 | IsArrayData = false | - |
120 | }; | - |
121 | private: | - |
122 | void *operator new(size_t); | - |
123 | Managed() Q_DECL_EQ_DELETE; | - |
124 | Q_DISABLE_COPY(Managed) | - |
125 | - | |
126 | public: | - |
127 | enum { NInlineProperties = 0 }; | - |
128 | - | |
129 | enum Type { | - |
130 | Type_Invalid, | - |
131 | Type_String, | - |
132 | Type_Object, | - |
133 | Type_Symbol, | - |
134 | Type_ArrayObject, | - |
135 | Type_FunctionObject, | - |
136 | Type_GeneratorObject, | - |
137 | Type_BooleanObject, | - |
138 | Type_NumberObject, | - |
139 | Type_StringObject, | - |
140 | Type_SymbolObject, | - |
141 | Type_DateObject, | - |
142 | Type_RegExpObject, | - |
143 | Type_ErrorObject, | - |
144 | Type_ArgumentsObject, | - |
145 | Type_JsonObject, | - |
146 | Type_MathObject, | - |
147 | Type_ProxyObject, | - |
148 | - | |
149 | Type_ExecutionContext, | - |
150 | Type_InternalClass, | - |
151 | Type_SetIteratorObject, | - |
152 | Type_MapIteratorObject, | - |
153 | Type_ArrayIteratorObject, | - |
154 | Type_StringIteratorObject, | - |
155 | Type_ForInIterator, | - |
156 | Type_RegExp, | - |
157 | - | |
158 | Type_QmlSequence | - |
159 | }; | - |
160 | Q_MANAGED_TYPE(Invalid) | - |
161 | - | |
162 | Heap::InternalClass *internalClass() const { return d()->internalClass; } executed 1439261680 times by 154 tests: return d()->internalClass; Executed by:
| 1439261680 |
163 | const VTable *vtable() const { return d()->internalClass->vtable; } executed 11711836 times by 31 tests: return d()->internalClass->vtable; Executed by:
| 11711836 |
164 | inline ExecutionEngine *engine() const { return internalClass()->engine; } executed 887819321 times by 154 tests: return internalClass()->engine; Executed by:
| 887819321 |
165 | - | |
166 | bool isListType() const { return d()->internalClass->vtable->type == Type_QmlSequence; } executed 30800 times by 46 tests: return d()->internalClass->vtable->type == Type_QmlSequence; Executed by:
| 30800 |
167 | bool isArrayLike() const { return isArrayObject() || isListType(); } never executed: return isArrayObject() || isListType(); | 0 |
168 | - | |
169 | bool isArrayObject() const { return d()->internalClass->vtable->type == Type_ArrayObject; } executed 315433 times by 57 tests: return d()->internalClass->vtable->type == Type_ArrayObject; Executed by:
| 315433 |
170 | bool isStringObject() const { return d()->internalClass->vtable->type == Type_StringObject; } executed 81856404 times by 29 tests: return d()->internalClass->vtable->type == Type_StringObject; Executed by:
| 81856404 |
171 | bool isSymbolObject() const { return d()->internalClass->vtable->type == Type_SymbolObject; } never executed: return d()->internalClass->vtable->type == Type_SymbolObject; | 0 |
172 | - | |
173 | QString className() const; | - |
174 | - | |
175 | bool isEqualTo(const Managed *other) const | - |
176 | { return d()->internalClass->vtable->isEqualTo(const_cast<Managed *>(this), const_cast<Managed *>(other)); } executed 11886711 times by 32 tests: return d()->internalClass->vtable->isEqualTo(const_cast<Managed *>(this), const_cast<Managed *>(other)); Executed by:
| 11886711 |
177 | - | |
178 | bool inUse() const { return d()->inUse(); } executed 1277401 times by 27 tests: return d()->inUse(); Executed by:
| 1277401 |
179 | bool markBit() const { return d()->isMarked(); } executed 2962358 times by 154 tests: return d()->isMarked(); Executed by:
| 2962358 |
180 | inline void mark(MarkStack *markStack); | - |
181 | - | |
182 | Q_ALWAYS_INLINE Heap::Base *heapObject() const { | - |
183 | return m(); executed 62628 times by 35 tests: return m(); Executed by:
| 62628 |
184 | } | - |
185 | - | |
186 | template<typename T> inline T *cast() { | - |
187 | return static_cast<T *>(this); executed 98779 times by 154 tests: return static_cast<T *>(this); Executed by:
| 98779 |
188 | } | - |
189 | template<typename T> inline const T *cast() const { | - |
190 | return static_cast<const T *>(this); executed 4 times by 1 test: return static_cast<const T *>(this); Executed by:
| 4 |
191 | } | - |
192 | - | |
193 | protected: | - |
194 | static bool virtualIsEqualTo(Managed *m, Managed *other); | - |
195 | - | |
196 | private: | - |
197 | friend class MemoryManager; | - |
198 | friend struct Identifiers; | - |
199 | friend struct ObjectIterator; | - |
200 | }; | - |
201 | - | |
202 | inline void Managed::mark(MarkStack *markStack) | - |
203 | { | - |
204 | Q_ASSERT(m()); | - |
205 | m()->mark(markStack); | - |
206 | } executed 1476199 times by 27 tests: end of block Executed by:
| 1476199 |
207 | - | |
208 | template<> | - |
209 | inline const Managed *Value::as() const { | - |
210 | return managed(); executed 99759 times by 21 tests: return managed(); Executed by:
| 99759 |
211 | } | - |
212 | - | |
213 | template<> | - |
214 | inline const Object *Value::as() const { | - |
215 | return objectValue(); executed 62712486 times by 154 tests: return objectValue(); Executed by:
| 62712486 |
216 | } | - |
217 | - | |
218 | - | |
219 | struct InternalClass : Managed | - |
220 | { | - |
221 | V4_MANAGED_ITSELF(InternalClass, Managed) never executed: end of block never executed: end of block executed 99198 times by 154 tests: return &static_vtbl; Executed by:
executed 289076219 times by 154 tests: return static_cast<QV4::Heap::InternalClass *>(m()); Executed by:
executed 289412480 times by 154 tests: return dptr; Executed by:
| 0-289412480 |
222 | Q_MANAGED_TYPE(InternalClass) | - |
223 | V4_INTERNALCLASS(Empty) never executed: return e->internalClasses(QV4::EngineBase::Class_Empty); | 0 |
224 | V4_NEEDS_DESTROY executed 72685390 times by 154 tests: end of block Executed by:
| 72685390 |
225 | - | |
226 | Q_REQUIRED_RESULT Heap::InternalClass *changeVTable(const VTable *vt) { | - |
227 | return d()->changeVTable(vt); executed 46489866 times by 154 tests: return d()->changeVTable(vt); Executed by:
| 46489866 |
228 | } | - |
229 | Q_REQUIRED_RESULT Heap::InternalClass *changePrototype(Heap::Object *proto) { | - |
230 | return d()->changePrototype(proto); executed 52485428 times by 154 tests: return d()->changePrototype(proto); Executed by:
| 52485428 |
231 | } | - |
232 | Q_REQUIRED_RESULT Heap::InternalClass *addMember(PropertyKey identifier, PropertyAttributes data, uint *index = 0) { | - |
233 | return d()->addMember(identifier, data, index); executed 21915465 times by 154 tests: return d()->addMember(identifier, data, index); Executed by:
| 21915465 |
234 | } | - |
235 | - | |
236 | void operator =(Heap::InternalClass *ic) { | - |
237 | Value::operator=(ic); | - |
238 | } never executed: end of block | 0 |
239 | }; | - |
240 | - | |
241 | } | - |
242 | - | |
243 | - | |
244 | QT_END_NAMESPACE | - |
245 | - | |
246 | #endif | - |
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