1/*
2 * Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21#include "config.h"
22#include "PropertySlot.h"
23
24#include "DOMJITGetterSetter.h"
25#include "GetterSetter.h"
26#include "HeapCellInlines.h"
27#include "JSCJSValueInlines.h"
28#include "JSObject.h"
29
30namespace JSC {
31
32JSValue PropertySlot::functionGetter(JSGlobalObject* globalObject) const
33{
34 ASSERT(m_thisValue);
35 return callGetter(globalObject, m_thisValue, m_data.getter.getterSetter);
36}
37
38JSValue PropertySlot::customGetter(JSGlobalObject* globalObject, PropertyName propertyName) const
39{
40 // FIXME: Remove this differences in custom values and custom accessors.
41 // https://bugs.webkit.org/show_bug.cgi?id=158014
42 JSValue thisValue = m_attributes & PropertyAttribute::CustomAccessor ? m_thisValue : JSValue(slotBase());
43 if (auto domAttribute = this->domAttribute()) {
44 VM& vm = globalObject->vm();
45 if (!thisValue.inherits(vm, domAttribute->classInfo)) {
46 auto scope = DECLARE_THROW_SCOPE(vm);
47 return throwDOMAttributeGetterTypeError(globalObject, scope, domAttribute->classInfo, propertyName);
48 }
49 }
50 return JSValue::decode(m_data.custom.getValue(globalObject, JSValue::encode(thisValue), propertyName));
51}
52
53JSValue PropertySlot::customAccessorGetter(JSGlobalObject* globalObject, PropertyName propertyName) const
54{
55 if (!m_data.customAccessor.getterSetter->getter())
56 return jsUndefined();
57
58 if (auto domAttribute = this->domAttribute()) {
59 VM& vm = globalObject->vm();
60 if (!m_thisValue.inherits(vm, domAttribute->classInfo)) {
61 auto scope = DECLARE_THROW_SCOPE(vm);
62 return throwDOMAttributeGetterTypeError(globalObject, scope, domAttribute->classInfo, propertyName);
63 }
64 }
65 return JSValue::decode(m_data.customAccessor.getterSetter->getter()(globalObject, JSValue::encode(m_thisValue), propertyName));
66}
67
68JSValue PropertySlot::getPureResult() const
69{
70 JSValue result;
71 if (isTaintedByOpaqueObject())
72 result = jsNull();
73 else if (isCacheableValue())
74 result = JSValue::decode(m_data.value);
75 else if (isCacheableGetter())
76 result = getterSetter();
77 else if (isUnset())
78 result = jsUndefined();
79 else
80 result = jsNull();
81
82 return result;
83}
84
85} // namespace JSC
86