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
40#ifndef QV4QMLCONTEXT_P_H
41#define QV4QMLCONTEXT_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore/qglobal.h>
55#include <private/qtqmlglobal_p.h>
56
57#include <private/qv4object_p.h>
58#include <private/qv4context_p.h>
59#include <private/qqmlcontext_p.h>
60
61QT_BEGIN_NAMESPACE
62
63namespace QV4 {
64
65struct QQmlContextWrapper;
66
67namespace Heap {
68
69#define QQmlContextWrapperMembers(class, Member) \
70 Member(class, Pointer, Module *, module)
71
72DECLARE_HEAP_OBJECT(QQmlContextWrapper, Object) {
73 DECLARE_MARKOBJECTS(QQmlContextWrapper);
74
75 void init(QQmlContextData *context, QObject *scopeObject);
76 void destroy();
77
78 QQmlContextDataRef *context;
79 QQmlQPointer<QObject> scopeObject;
80};
81
82#define QmlContextMembers(class, Member)
83
84DECLARE_HEAP_OBJECT(QmlContext, ExecutionContext) {
85 DECLARE_MARKOBJECTS(QmlContext);
86
87 QQmlContextWrapper *qml() { return static_cast<QQmlContextWrapper *>(activation.get()); }
88 void init(QV4::ExecutionContext *outerContext, QV4::QQmlContextWrapper *qml);
89};
90
91}
92
93struct Q_QML_EXPORT QQmlContextWrapper : Object
94{
95 V4_OBJECT2(QQmlContextWrapper, Object)
96 V4_NEEDS_DESTROY
97 V4_INTERNALCLASS(QmlContextWrapper)
98
99 inline QObject *getScopeObject() const { return d()->scopeObject; }
100 inline QQmlContextData *getContext() const { return *d()->context; }
101
102 static ReturnedValue getPropertyAndBase(const QQmlContextWrapper *resource, PropertyKey id, const Value *receiver,
103 bool *hasProperty, Value *base, Lookup *lookup = nullptr);
104 static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty);
105 static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver);
106
107 static ReturnedValue resolveQmlContextPropertyLookupGetter(Lookup *l, ExecutionEngine *engine, Value *base);
108 static ReturnedValue lookupScript(Lookup *l, ExecutionEngine *engine, Value *base);
109 static ReturnedValue lookupSingleton(Lookup *l, ExecutionEngine *engine, Value *base);
110 static ReturnedValue lookupIdObject(Lookup *l, ExecutionEngine *engine, Value *base);
111 static ReturnedValue lookupScopeObjectProperty(Lookup *l, ExecutionEngine *engine, Value *base);
112 static ReturnedValue lookupContextObjectProperty(Lookup *l, ExecutionEngine *engine, Value *base);
113 static ReturnedValue lookupInGlobalObject(Lookup *l, ExecutionEngine *engine, Value *base);
114 static ReturnedValue lookupInParentContextHierarchy(Lookup *l, ExecutionEngine *engine, Value *base);
115 static ReturnedValue lookupType(Lookup *l, ExecutionEngine *engine, Value *base);
116};
117
118struct Q_QML_EXPORT QmlContext : public ExecutionContext
119{
120 V4_MANAGED(QmlContext, ExecutionContext)
121 V4_INTERNALCLASS(QmlContext)
122
123 static Heap::QmlContext *create(QV4::ExecutionContext *parent, QQmlContextData *context, QObject *scopeObject);
124
125 QObject *qmlScope() const {
126 return d()->qml()->scopeObject;
127 }
128 QQmlContextData *qmlContext() const {
129 return *d()->qml()->context;
130 }
131};
132
133}
134
135QT_END_NAMESPACE
136
137#endif
138
139

source code of qtdeclarative/src/qml/jsruntime/qv4qmlcontext_p.h