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qv4enginebase_p.h

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1/****************************************************************************-
2**-
3** Copyright (C) 2017 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 QV4ENGINEBASE_P_H-
40#define QV4ENGINEBASE_P_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 <private/qv4global_p.h>-
54#include <private/qv4runtimeapi_p.h>-
55-
56QT_BEGIN_NAMESPACE-
57-
58namespace QV4 {-
59-
60struct CppStackFrame;-
61-
62// Base class for the execution engine-
63-
64#if defined(Q_CC_MSVC) || defined(Q_CC_GNU)-
65#pragma pack(push, 1)-
66#endif-
67struct Q_QML_EXPORT EngineBase {-
68-
69 CppStackFrame *currentStackFrame = nullptr;-
70-
71 Value *jsStackTop = nullptr;-
72 quint8 hasException = false;-
73 quint8 writeBarrierActive = false;-
74 quint16 unused = 0;-
75#if QT_POINTER_SIZE == 8-
76 quint8 padding[4];-
77#endif-
78 MemoryManager *memoryManager = nullptr;-
79 Runtime runtime;-
80-
81 qint32 callDepth = 0;-
82 Value *jsStackLimit = nullptr;-
83 Value *jsStackBase = nullptr;-
84-
85 IdentifierTable *identifierTable = nullptr;-
86 Object *globalObject = nullptr;-
87-
88 // Exception handling-
89 Value *exceptionValue = nullptr;-
90-
91 enum InternalClassType {-
92 Class_Empty,-
93 Class_String,-
94 Class_MemberData,-
95 Class_SimpleArrayData,-
96 Class_SparseArrayData,-
97 Class_ExecutionContext,-
98 Class_CallContext,-
99 Class_QmlContext,-
100 Class_Object,-
101 Class_ArrayObject,-
102 Class_FunctionObject,-
103 Class_GeneratorFunction,-
104 Class_GeneratorObject,-
105 Class_StringObject,-
106 Class_SymbolObject,-
107 Class_ScriptFunction,-
108 Class_ConstructorFunction,-
109 Class_MemberFunction,-
110 Class_MemberGeneratorFunction,-
111 Class_ObjectProto,-
112 Class_RegExp,-
113 Class_RegExpObject,-
114 Class_RegExpExecArray,-
115 Class_ArgumentsObject,-
116 Class_StrictArgumentsObject,-
117 Class_ErrorObject,-
118 Class_ErrorObjectWithMessage,-
119 Class_ErrorProto,-
120 Class_QmlContextWrapper,-
121 Class_ProxyObject,-
122 Class_Symbol,-
123 NClasses-
124 };-
125 Heap::InternalClass *classes[NClasses];-
126 Heap::InternalClass *internalClasses(InternalClassType icType) { return classes[icType]; }
executed 317915048 times by 154 tests: return classes[icType];
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_ecmascripttests
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • tst_qjsonbinding
  • tst_qjsvalue
  • tst_qjsvalueiterator
  • tst_qmlcachegen
  • tst_qmldiskcache
  • tst_qqmlapplicationengine
  • tst_qqmlbinding
  • tst_qqmlcomponent
  • tst_qqmlconnections
  • tst_qqmlconsole
  • tst_qqmlcontext
  • tst_qqmldebugclient
  • tst_qqmldebugjs
  • tst_qqmldebuglocal
  • tst_qqmldebugservice
  • tst_qqmlecmascript
  • tst_qqmlenginecleanup
  • ...
317915048
127};-
128#if defined(Q_CC_MSVC) || defined(Q_CC_GNU)-
129#pragma pack(pop)-
130#endif-
131-
132Q_STATIC_ASSERT(std::is_standard_layout<EngineBase>::value);-
133Q_STATIC_ASSERT(offsetof(EngineBase, currentStackFrame) == 0);-
134Q_STATIC_ASSERT(offsetof(EngineBase, jsStackTop) == offsetof(EngineBase, currentStackFrame) + QT_POINTER_SIZE);-
135Q_STATIC_ASSERT(offsetof(EngineBase, hasException) == offsetof(EngineBase, jsStackTop) + QT_POINTER_SIZE);-
136Q_STATIC_ASSERT(offsetof(EngineBase, memoryManager) == offsetof(EngineBase, hasException) + QT_POINTER_SIZE);-
137Q_STATIC_ASSERT(offsetof(EngineBase, runtime) == offsetof(EngineBase, memoryManager) + QT_POINTER_SIZE);-
138-
139}-
140-
141QT_END_NAMESPACE-
142-
143#endif-
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