summaryrefslogtreecommitdiffstats
path: root/JavaScriptGlue/JSValueWrapper.cpp
blob: 24b6f2889b26a4920844cbdb35510591c9607226 (plain)
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
/*
 * Copyright (C) 2005, 2009 Apple Computer, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer. 
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution. 
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "JSValueWrapper.h"
#include "JSRun.h"
#include <JavaScriptCore/JSArray.h>
#include <JavaScriptCore/PropertyNameArray.h>
#include <pthread.h>

JSValueWrapper::JSValueWrapper(JSValue inValue)
    : fValue(inValue)
{
}

JSValueWrapper::~JSValueWrapper()
{
}

JSValue JSValueWrapper::GetValue()
{
    return fValue.get();
}

void JSValueWrapper::GetJSObectCallBacks(JSObjectCallBacks& callBacks)
{
    callBacks.dispose = (JSObjectDisposeProcPtr)JSValueWrapper::JSObjectDispose;
    callBacks.equal = (JSObjectEqualProcPtr)0;
    callBacks.copyPropertyNames = (JSObjectCopyPropertyNamesProcPtr)JSValueWrapper::JSObjectCopyPropertyNames;
    callBacks.copyCFValue = (JSObjectCopyCFValueProcPtr)JSValueWrapper::JSObjectCopyCFValue;
    callBacks.copyProperty = (JSObjectCopyPropertyProcPtr)JSValueWrapper::JSObjectCopyProperty;
    callBacks.setProperty = (JSObjectSetPropertyProcPtr)JSValueWrapper::JSObjectSetProperty;
    callBacks.callFunction = (JSObjectCallFunctionProcPtr)JSValueWrapper::JSObjectCallFunction;
}

void JSValueWrapper::JSObjectDispose(void *data)
{
    JSValueWrapper* ptr = (JSValueWrapper*)data;
    delete ptr;
}


CFArrayRef JSValueWrapper::JSObjectCopyPropertyNames(void *data)
{
    JSLock lock(LockForReal);

    CFMutableArrayRef result = 0;
    JSValueWrapper* ptr = (JSValueWrapper*)data;
    if (ptr)
    {
        ExecState* exec = getThreadGlobalExecState();
        JSObject* object = ptr->GetValue().toObject(exec);
        PropertyNameArray propNames(exec);
        object->getPropertyNames(exec, propNames);
        PropertyNameArray::const_iterator iterator = propNames.begin();

        while (iterator != propNames.end()) {
            Identifier name = *iterator;
            CFStringRef nameStr = IdentifierToCFString(name);

            if (!result)
            {
                result = CFArrayCreateMutable(0, 0, &kCFTypeArrayCallBacks);
            }
            if (result && nameStr)
            {
                CFArrayAppendValue(result, nameStr);
            }
            ReleaseCFType(nameStr);
            iterator++;
        }

    }
    return result;
}


JSObjectRef JSValueWrapper::JSObjectCopyProperty(void *data, CFStringRef propertyName)
{
    JSLock lock(LockForReal);

    JSObjectRef result = 0;
    JSValueWrapper* ptr = (JSValueWrapper*)data;
    if (ptr)
    {
        ExecState* exec = getThreadGlobalExecState();
        JSValue propValue = ptr->GetValue().toObject(exec)->get(exec, CFStringToIdentifier(propertyName, exec));
        JSValueWrapper* wrapperValue = new JSValueWrapper(propValue);

        JSObjectCallBacks callBacks;
        GetJSObectCallBacks(callBacks);
        result = JSObjectCreateInternal(wrapperValue, &callBacks, JSValueWrapper::JSObjectMark, kJSUserObjectDataTypeJSValueWrapper);

        if (!result)
        {
            delete wrapperValue;
        }
    }
    return result;
}

void JSValueWrapper::JSObjectSetProperty(void *data, CFStringRef propertyName, JSObjectRef jsValue)
{
    JSLock lock(LockForReal);

    JSValueWrapper* ptr = (JSValueWrapper*)data;
    if (ptr)
    {
        ExecState* exec = getThreadGlobalExecState();
        JSValue value = JSObjectKJSValue((JSUserObject*)jsValue);
        JSObject *objValue = ptr->GetValue().toObject(exec);
        PutPropertySlot slot;
        objValue->put(exec, CFStringToIdentifier(propertyName, exec), value, slot);
    }
}

JSObjectRef JSValueWrapper::JSObjectCallFunction(void *data, JSObjectRef thisObj, CFArrayRef args)
{
    JSLock lock(LockForReal);

    JSObjectRef result = 0;
    JSValueWrapper* ptr = (JSValueWrapper*)data;
    if (ptr)
    {
        ExecState* exec = getThreadGlobalExecState();

        JSValue value = JSObjectKJSValue((JSUserObject*)thisObj);
        JSObject* ksjThisObj = value.toObject(exec);
        JSObject* objValue = ptr->GetValue().toObject(exec);

        MarkedArgumentBuffer listArgs;
        CFIndex argCount = args ? CFArrayGetCount(args) : 0;
        for (CFIndex i = 0; i < argCount; i++)
        {
            JSObjectRef jsArg = (JSObjectRef)CFArrayGetValueAtIndex(args, i);
            JSValue kgsArg = JSObjectKJSValue((JSUserObject*)jsArg);
            listArgs.append(kgsArg);
        }

        CallData callData;
        CallType callType = objValue->getCallData(callData);
        if (callType == CallTypeNone)
            return 0;
        JSValue  resultValue = call(exec, objValue, callType, callData, ksjThisObj, listArgs);
        JSValueWrapper* wrapperValue = new JSValueWrapper(resultValue);
        JSObjectCallBacks callBacks;
        GetJSObectCallBacks(callBacks);
        result = JSObjectCreate(wrapperValue, &callBacks);
        if (!result)
        {
            delete wrapperValue;
        }
    }
    return result;
}

CFTypeRef JSValueWrapper::JSObjectCopyCFValue(void *data)
{
    JSLock lock(LockForReal);

    CFTypeRef result = 0;
    JSValueWrapper* ptr = (JSValueWrapper*)data;
    if (ptr)
    {
        result = KJSValueToCFType(ptr->GetValue(), getThreadGlobalExecState());
    }
    return result;
}

void JSValueWrapper::JSObjectMark(void *data)
{
    JSValueWrapper* ptr = (JSValueWrapper*)data;
    if (ptr)
    {
        // This results in recursive marking but will be otherwise safe and correct.
        // We claim the array vptr is 0 because we don't have access to it here, and
        // claiming 0 is functionally harmless -- it merely means that we can't
        // devirtualise marking of arrays when recursing from this point.
        MarkStack markStack(0);
        markStack.append(ptr->fValue.get());
        markStack.drain();
    }
}