1/*
2 *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
3 *  Copyright (C) 2008 Apple Inc. All rights reserved.
4 *
5 *  This library is free software; you can redistribute it and/or
6 *  modify it under the terms of the GNU Lesser General Public
7 *  License as published by the Free Software Foundation; either
8 *  version 2 of the License, or (at your option) any later version.
9 *
10 *  This library is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 *  Lesser General Public License for more details.
14 *
15 *  You should have received a copy of the GNU Lesser General Public
16 *  License along with this library; if not, write to the Free Software
17 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
18 *
19 */
20
21#include "config.h"
22#include "ObjectPrototype.h"
23
24#include "Error.h"
25#include "JSFunction.h"
26#include "JSString.h"
27#include "JSStringBuilder.h"
28
29namespace JSC {
30
31ASSERT_CLASS_FITS_IN_CELL(ObjectPrototype);
32
33static EncodedJSValue JSC_HOST_CALL objectProtoFuncValueOf(ExecState*);
34static EncodedJSValue JSC_HOST_CALL objectProtoFuncHasOwnProperty(ExecState*);
35static EncodedJSValue JSC_HOST_CALL objectProtoFuncIsPrototypeOf(ExecState*);
36static EncodedJSValue JSC_HOST_CALL objectProtoFuncDefineGetter(ExecState*);
37static EncodedJSValue JSC_HOST_CALL objectProtoFuncDefineSetter(ExecState*);
38static EncodedJSValue JSC_HOST_CALL objectProtoFuncLookupGetter(ExecState*);
39static EncodedJSValue JSC_HOST_CALL objectProtoFuncLookupSetter(ExecState*);
40static EncodedJSValue JSC_HOST_CALL objectProtoFuncPropertyIsEnumerable(ExecState*);
41static EncodedJSValue JSC_HOST_CALL objectProtoFuncToLocaleString(ExecState*);
42
43ObjectPrototype::ObjectPrototype(ExecState* exec, JSGlobalObject* globalObject, Structure* stucture, Structure* functionStructure)
44    : JSNonFinalObject(exec->globalData(), stucture)
45    , m_hasNoPropertiesWithUInt32Names(true)
46{
47    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 0, exec->propertyNames().toString, objectProtoFuncToString), DontEnum);
48    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 0, exec->propertyNames().toLocaleString, objectProtoFuncToLocaleString), DontEnum);
49    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 0, exec->propertyNames().valueOf, objectProtoFuncValueOf), DontEnum);
50    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().hasOwnProperty, objectProtoFuncHasOwnProperty), DontEnum);
51    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().propertyIsEnumerable, objectProtoFuncPropertyIsEnumerable), DontEnum);
52    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().isPrototypeOf, objectProtoFuncIsPrototypeOf), DontEnum);
53
54    // Mozilla extensions
55    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 2, exec->propertyNames().__defineGetter__, objectProtoFuncDefineGetter), DontEnum);
56    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 2, exec->propertyNames().__defineSetter__, objectProtoFuncDefineSetter), DontEnum);
57    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().__lookupGetter__, objectProtoFuncLookupGetter), DontEnum);
58    putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().__lookupSetter__, objectProtoFuncLookupSetter), DontEnum);
59}
60
61void ObjectPrototype::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
62{
63    JSObject::put(exec, propertyName, value, slot);
64
65    if (m_hasNoPropertiesWithUInt32Names) {
66        bool isUInt32;
67        propertyName.toUInt32(isUInt32);
68        m_hasNoPropertiesWithUInt32Names = !isUInt32;
69    }
70}
71
72bool ObjectPrototype::getOwnPropertySlot(ExecState* exec, unsigned propertyName, PropertySlot& slot)
73{
74    if (m_hasNoPropertiesWithUInt32Names)
75        return false;
76    return JSObject::getOwnPropertySlot(exec, propertyName, slot);
77}
78
79// ------------------------------ Functions --------------------------------
80
81// ECMA 15.2.4.2, 15.2.4.4, 15.2.4.5, 15.2.4.7
82
83EncodedJSValue JSC_HOST_CALL objectProtoFuncValueOf(ExecState* exec)
84{
85    JSValue thisValue = exec->hostThisValue();
86    return JSValue::encode(thisValue.toThisObject(exec));
87}
88
89EncodedJSValue JSC_HOST_CALL objectProtoFuncHasOwnProperty(ExecState* exec)
90{
91    JSValue thisValue = exec->hostThisValue();
92    return JSValue::encode(jsBoolean(thisValue.toThisObject(exec)->hasOwnProperty(exec, Identifier(exec, exec->argument(0).toString(exec)))));
93}
94
95EncodedJSValue JSC_HOST_CALL objectProtoFuncIsPrototypeOf(ExecState* exec)
96{
97    JSValue thisValue = exec->hostThisValue();
98    JSObject* thisObj = thisValue.toThisObject(exec);
99
100    if (!exec->argument(0).isObject())
101        return JSValue::encode(jsBoolean(false));
102
103    JSValue v = asObject(exec->argument(0))->prototype();
104
105    while (true) {
106        if (!v.isObject())
107            return JSValue::encode(jsBoolean(false));
108        if (v == thisObj)
109            return JSValue::encode(jsBoolean(true));
110        v = asObject(v)->prototype();
111    }
112}
113
114EncodedJSValue JSC_HOST_CALL objectProtoFuncDefineGetter(ExecState* exec)
115{
116    JSValue thisValue = exec->hostThisValue();
117    CallData callData;
118    if (getCallData(exec->argument(1), callData) == CallTypeNone)
119        return throwVMError(exec, createSyntaxError(exec, "invalid getter usage"));
120    thisValue.toThisObject(exec)->defineGetter(exec, Identifier(exec, exec->argument(0).toString(exec)), asObject(exec->argument(1)));
121    return JSValue::encode(jsUndefined());
122}
123
124EncodedJSValue JSC_HOST_CALL objectProtoFuncDefineSetter(ExecState* exec)
125{
126    JSValue thisValue = exec->hostThisValue();
127    CallData callData;
128    if (getCallData(exec->argument(1), callData) == CallTypeNone)
129        return throwVMError(exec, createSyntaxError(exec, "invalid setter usage"));
130    thisValue.toThisObject(exec)->defineSetter(exec, Identifier(exec, exec->argument(0).toString(exec)), asObject(exec->argument(1)));
131    return JSValue::encode(jsUndefined());
132}
133
134EncodedJSValue JSC_HOST_CALL objectProtoFuncLookupGetter(ExecState* exec)
135{
136    JSValue thisValue = exec->hostThisValue();
137    return JSValue::encode(thisValue.toThisObject(exec)->lookupGetter(exec, Identifier(exec, exec->argument(0).toString(exec))));
138}
139
140EncodedJSValue JSC_HOST_CALL objectProtoFuncLookupSetter(ExecState* exec)
141{
142    JSValue thisValue = exec->hostThisValue();
143    return JSValue::encode(thisValue.toThisObject(exec)->lookupSetter(exec, Identifier(exec, exec->argument(0).toString(exec))));
144}
145
146EncodedJSValue JSC_HOST_CALL objectProtoFuncPropertyIsEnumerable(ExecState* exec)
147{
148    JSValue thisValue = exec->hostThisValue();
149    return JSValue::encode(jsBoolean(thisValue.toThisObject(exec)->propertyIsEnumerable(exec, Identifier(exec, exec->argument(0).toString(exec)))));
150}
151
152EncodedJSValue JSC_HOST_CALL objectProtoFuncToLocaleString(ExecState* exec)
153{
154    JSValue thisValue = exec->hostThisValue();
155    return JSValue::encode(thisValue.toThisJSString(exec));
156}
157
158EncodedJSValue JSC_HOST_CALL objectProtoFuncToString(ExecState* exec)
159{
160    JSValue thisValue = exec->hostThisValue();
161    return JSValue::encode(jsMakeNontrivialString(exec, "[object ", thisValue.toThisObject(exec)->className(), "]"));
162}
163
164} // namespace JSC
165