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
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtScript module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL-ONLY$
** GNU Lesser General Public License Usage
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "config.h"
#include "qscriptfunction_p.h"
#include "private/qscriptengine_p.h"
#include "qscriptcontext.h"
#include "private/qscriptcontext_p.h"
#include "private/qscriptvalue_p.h"
#include "qscriptactivationobject_p.h"
#include "qscriptobject_p.h"
#include "JSGlobalObject.h"
#include "DebuggerCallFrame.h"
#include "Debugger.h"
namespace JSC
{
ASSERT_CLASS_FITS_IN_CELL(QT_PREPEND_NAMESPACE(QScript::FunctionWrapper));
ASSERT_CLASS_FITS_IN_CELL(QT_PREPEND_NAMESPACE(QScript::FunctionWithArgWrapper));
}
QT_BEGIN_NAMESPACE
namespace QScript
{
const JSC::ClassInfo FunctionWrapper::info = { "QtNativeFunctionWrapper", &PrototypeFunction::info, 0, 0 };
const JSC::ClassInfo FunctionWithArgWrapper::info = { "QtNativeFunctionWithArgWrapper", &PrototypeFunction::info, 0, 0 };
FunctionWrapper::FunctionWrapper(JSC::ExecState *exec, int length, const JSC::Identifier &name,
QScriptEngine::FunctionSignature function)
: JSC::PrototypeFunction(exec, length, name, proxyCall),
data(new Data())
{
data->function = function;
}
FunctionWrapper::~FunctionWrapper()
{
delete data;
}
JSC::ConstructType FunctionWrapper::getConstructData(JSC::ConstructData& consData)
{
consData.native.function = proxyConstruct;
consData.native.function.doNotCallDebuggerFunctionExit();
return JSC::ConstructTypeHost;
}
JSC::JSValue FunctionWrapper::proxyCall(JSC::ExecState *exec, JSC::JSObject *callee,
JSC::JSValue thisObject, const JSC::ArgList &args)
{
FunctionWrapper *self = static_cast<FunctionWrapper*>(callee);
QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec);
JSC::ExecState *oldFrame = eng_p->currentFrame;
eng_p->pushContext(exec, thisObject, args, callee);
QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame);
QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p));
if (!result.isValid())
result = QScriptValue(QScriptValue::UndefinedValue);
eng_p->popContext();
eng_p->currentFrame = oldFrame;
return eng_p->scriptValueToJSCValue(result);
}
JSC::JSObject* FunctionWrapper::proxyConstruct(JSC::ExecState *exec, JSC::JSObject *callee,
const JSC::ArgList &args)
{
FunctionWrapper *self = static_cast<FunctionWrapper*>(callee);
QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec);
JSC::ExecState *oldFrame = eng_p->currentFrame;
eng_p->pushContext(exec, JSC::JSValue(), args, callee, true);
QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame);
QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p));
if (JSC::Debugger* debugger = eng_p->originalGlobalObject()->debugger())
debugger->functionExit(QScriptValuePrivate::get(result)->jscValue, -1);
if (!result.isObject())
result = ctx->thisObject();
eng_p->popContext();
eng_p->currentFrame = oldFrame;
return JSC::asObject(eng_p->scriptValueToJSCValue(result));
}
FunctionWithArgWrapper::FunctionWithArgWrapper(JSC::ExecState *exec, int length, const JSC::Identifier &name,
QScriptEngine::FunctionWithArgSignature function, void *arg)
: JSC::PrototypeFunction(exec, length, name, proxyCall),
data(new Data())
{
data->function = function;
data->arg = arg;
}
FunctionWithArgWrapper::~FunctionWithArgWrapper()
{
delete data;
}
JSC::ConstructType FunctionWithArgWrapper::getConstructData(JSC::ConstructData& consData)
{
consData.native.function = proxyConstruct;
return JSC::ConstructTypeHost;
}
JSC::JSValue FunctionWithArgWrapper::proxyCall(JSC::ExecState *exec, JSC::JSObject *callee,
JSC::JSValue thisObject, const JSC::ArgList &args)
{
FunctionWithArgWrapper *self = static_cast<FunctionWithArgWrapper*>(callee);
QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec);
JSC::ExecState *oldFrame = eng_p->currentFrame;
eng_p->pushContext(exec, thisObject, args, callee);
QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame);
QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p), self->data->arg);
eng_p->popContext();
eng_p->currentFrame = oldFrame;
return eng_p->scriptValueToJSCValue(result);
}
JSC::JSObject* FunctionWithArgWrapper::proxyConstruct(JSC::ExecState *exec, JSC::JSObject *callee,
const JSC::ArgList &args)
{
FunctionWithArgWrapper *self = static_cast<FunctionWithArgWrapper*>(callee);
QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec);
JSC::ExecState *oldFrame = eng_p->currentFrame;
eng_p->pushContext(exec, JSC::JSValue(), args, callee, true);
QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame);
QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p) , self->data->arg);
if (!result.isObject())
result = ctx->thisObject();
eng_p->popContext();
eng_p->currentFrame = oldFrame;
return JSC::asObject(eng_p->scriptValueToJSCValue(result));
}
} // namespace QScript
QT_END_NAMESPACE
|
