1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the V4VM module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLJS_MANAGED_H
#define QMLJS_MANAGED_H
#include <QtCore/QString>
#include <QtCore/QVector>
#include <QtCore/QDebug>
#include "qv4global_p.h"
QT_BEGIN_NAMESPACE
namespace QQmlJS {
namespace VM {
class MemoryManager;
struct String;
struct Object;
struct ObjectPrototype;
struct ExecutionContext;
struct ScriptFunction;
struct BooleanObject;
struct NumberObject;
struct StringObject;
struct ArrayObject;
struct DateObject;
struct FunctionObject;
struct RegExpObject;
struct ErrorObject;
struct ArgumentsObject;
struct JSONObject;
struct ForeachIteratorObject;
struct Managed;
struct Value;
struct RegExp;
struct ManagedVTable
{
Value (*call)(Managed *, ExecutionContext *context, const Value &thisObject, Value *args, int argc);
Value (*construct)(Managed *, ExecutionContext *context, Value *args, int argc);
void (*markObjects)(Managed *);
void (*destroy)(Managed *);
bool (*hasInstance)(Managed *, ExecutionContext *ctx, const Value &value);
Value (*get)(Managed *, ExecutionContext *ctx, String *name, bool *hasProperty);
Value (*getIndexed)(Managed *, ExecutionContext *ctx, uint index, bool *hasProperty);
void (*put)(Managed *, ExecutionContext *ctx, String *name, const Value &value);
void (*putIndexed)(Managed *, ExecutionContext *ctx, uint index, const Value &value);
PropertyAttributes (*query)(Managed *, ExecutionContext *ctx, String *name);
PropertyAttributes (*queryIndexed)(Managed *, ExecutionContext *ctx, uint index);
bool (*deleteProperty)(Managed *m, ExecutionContext *ctx, String *name);
bool (*deleteIndexedProperty)(Managed *m, ExecutionContext *ctx, uint index);
const char *className;
};
#define DEFINE_MANAGED_VTABLE(classname) \
const ManagedVTable classname::static_vtbl = \
{ \
call, \
construct, \
markObjects, \
destroy, \
hasInstance, \
get, \
getIndexed, \
put, \
putIndexed, \
query, \
queryIndexed, \
deleteProperty, \
deleteIndexedProperty, \
#classname \
}
struct Q_V4_EXPORT Managed
{
private:
void *operator new(size_t);
Managed(const Managed &other);
void operator = (const Managed &other);
protected:
Managed()
: vtbl(&static_vtbl), _data(0)
{ inUse = 1; extensible = 1; }
public:
void *operator new(size_t size, MemoryManager *mm);
void operator delete(void *ptr);
void operator delete(void *ptr, MemoryManager *mm);
inline void mark() {
if (markBit)
return;
markBit = 1;
if (vtbl->markObjects)
vtbl->markObjects(this);
}
enum Type {
Type_Invalid,
Type_String,
Type_Object,
Type_ArrayObject,
Type_FunctionObject,
Type_BooleanObject,
Type_NumberObject,
Type_StringObject,
Type_DateObject,
Type_RegExpObject,
Type_ErrorObject,
Type_ArgumentsObject,
Type_JSONObject,
Type_MathObject,
Type_ForeachIteratorObject,
Type_RegExp
};
String *asString() { return reinterpret_cast<String *>(this); }
Object *asObject() { return reinterpret_cast<Object *>(this); }
ArrayObject *asArrayObject() { return type == Type_ArrayObject ? reinterpret_cast<ArrayObject *>(this) : 0; }
FunctionObject *asFunctionObject() { return type == Type_FunctionObject ? reinterpret_cast<FunctionObject *>(this) : 0; }
BooleanObject *asBooleanObject() { return type == Type_BooleanObject ? reinterpret_cast<BooleanObject *>(this) : 0; }
NumberObject *asNumberObject() { return type == Type_NumberObject ? reinterpret_cast<NumberObject *>(this) : 0; }
StringObject *asStringObject() { return type == Type_StringObject ? reinterpret_cast<StringObject *>(this) : 0; }
DateObject *asDateObject() { return type == Type_DateObject ? reinterpret_cast<DateObject *>(this) : 0; }
RegExpObject *asRegExpObject() { return type == Type_RegExpObject ? reinterpret_cast<RegExpObject *>(this) : 0; }
ErrorObject *asErrorObject() { return type == Type_ErrorObject ? reinterpret_cast<ErrorObject *>(this) : 0; }
ArgumentsObject *asArgumentsObject() { return type == Type_ArgumentsObject ? reinterpret_cast<ArgumentsObject *>(this) : 0; }
JSONObject *asJSONObject() { return type == Type_JSONObject ? reinterpret_cast<JSONObject *>(this) : 0; }
ForeachIteratorObject *asForeachIteratorObject() { return type == Type_ForeachIteratorObject ? reinterpret_cast<ForeachIteratorObject *>(this) : 0; }
RegExp *asRegExp() { return type == Type_RegExp ? reinterpret_cast<RegExp *>(this) : 0; }
bool isArrayObject() const { return type == Type_ArrayObject; }
bool isStringObject() const { return type == Type_StringObject; }
QString className() const;
Managed **nextFreeRef() {
return reinterpret_cast<Managed **>(this);
}
Managed *nextFree() {
return *reinterpret_cast<Managed **>(this);
}
void setNextFree(Managed *m) {
*reinterpret_cast<Managed **>(this) = m;
}
inline bool hasInstance(ExecutionContext *ctx, const Value &v) {
return vtbl->hasInstance(this, ctx, v);
}
Value construct(ExecutionContext *context, Value *args, int argc);
Value call(ExecutionContext *context, const Value &thisObject, Value *args, int argc);
Value get(ExecutionContext *ctx, String *name, bool *hasProperty = 0);
Value getIndexed(ExecutionContext *ctx, uint index, bool *hasProperty = 0);
void put(ExecutionContext *ctx, String *name, const Value &value)
{ vtbl->put(this, ctx, name, value); }
void putIndexed(ExecutionContext *ctx, uint index, const Value &value)
{ vtbl->putIndexed(this, ctx, index, value); }
bool deleteProperty(ExecutionContext *ctx, String *name)
{ return vtbl->deleteProperty(this, ctx, name); }
bool deleteIndexedProperty(ExecutionContext *ctx, uint index)
{ return vtbl->deleteIndexedProperty(this, ctx, index); }
static void destroy(Managed *that) { that->_data = 0; }
static bool hasInstance(Managed *that, ExecutionContext *ctx, const Value &value);
static Value construct(Managed *, ExecutionContext *context, Value *, int);
static Value call(Managed *, ExecutionContext *, const Value &, Value *, int);
uint internalType() const {
return type;
}
protected:
static const ManagedVTable static_vtbl;
const ManagedVTable *vtbl;
union {
uint _data;
struct {
uint markBit : 1;
uint inUse : 1;
uint extensible : 1; // used by Object
uint isNonStrictArgumentsObject : 1;
uint isBuiltinFunction : 1; // used by FunctionObject
uint needsActivation : 1; // used by FunctionObject
uint usesArgumentsObject : 1; // used by FunctionObject
uint strictMode : 1; // used by FunctionObject
uint type : 5;
mutable uint subtype : 3;
uint externalComparison : 1;
uint unused : 15;
};
};
private:
friend class MemoryManager;
friend struct Identifiers;
};
}
}
QT_END_NAMESPACE
#endif
|
