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Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertySlot.h')
| -rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertySlot.h | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertySlot.h b/src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertySlot.h deleted file mode 100644 index 15d9034..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertySlot.h +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Copyright (C) 2005, 2007, 2008 Apple Inc. All rights reserved. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - */ - -#ifndef PropertySlot_h -#define PropertySlot_h - -#include "Identifier.h" -#include "JSValue.h" -#include "Register.h" -#include <wtf/Assertions.h> -#include <wtf/NotFound.h> - -namespace JSC { - - class ExecState; - class JSObject; - -#define JSC_VALUE_SLOT_MARKER 0 -#define JSC_REGISTER_SLOT_MARKER reinterpret_cast<GetValueFunc>(1) - - class PropertySlot { - public: - PropertySlot() - { - clearBase(); - clearOffset(); - clearValue(); - } - - explicit PropertySlot(const JSValue base) - : m_slotBase(base) - { - clearOffset(); - clearValue(); - } - - typedef JSValue (*GetValueFunc)(ExecState*, const Identifier&, const PropertySlot&); - - JSValue getValue(ExecState* exec, const Identifier& propertyName) const - { - if (m_getValue == JSC_VALUE_SLOT_MARKER) - return *m_data.valueSlot; - if (m_getValue == JSC_REGISTER_SLOT_MARKER) - return (*m_data.registerSlot).jsValue(); - return m_getValue(exec, propertyName, *this); - } - - JSValue getValue(ExecState* exec, unsigned propertyName) const - { - if (m_getValue == JSC_VALUE_SLOT_MARKER) - return *m_data.valueSlot; - if (m_getValue == JSC_REGISTER_SLOT_MARKER) - return (*m_data.registerSlot).jsValue(); - return m_getValue(exec, Identifier::from(exec, propertyName), *this); - } - - bool isCacheable() const { return m_offset != WTF::notFound; } - size_t cachedOffset() const - { - ASSERT(isCacheable()); - return m_offset; - } - - void setValueSlot(JSValue* valueSlot) - { - ASSERT(valueSlot); - clearBase(); - clearOffset(); - m_getValue = JSC_VALUE_SLOT_MARKER; - m_data.valueSlot = valueSlot; - } - - void setValueSlot(JSValue slotBase, JSValue* valueSlot) - { - ASSERT(valueSlot); - m_getValue = JSC_VALUE_SLOT_MARKER; - m_slotBase = slotBase; - m_data.valueSlot = valueSlot; - } - - void setValueSlot(JSValue slotBase, JSValue* valueSlot, size_t offset) - { - ASSERT(valueSlot); - m_getValue = JSC_VALUE_SLOT_MARKER; - m_slotBase = slotBase; - m_data.valueSlot = valueSlot; - m_offset = offset; - } - - void setValue(JSValue value) - { - ASSERT(value); - clearBase(); - clearOffset(); - m_getValue = JSC_VALUE_SLOT_MARKER; - m_value = value; - m_data.valueSlot = &m_value; - } - - void setRegisterSlot(Register* registerSlot) - { - ASSERT(registerSlot); - clearBase(); - clearOffset(); - m_getValue = JSC_REGISTER_SLOT_MARKER; - m_data.registerSlot = registerSlot; - } - - void setCustom(JSValue slotBase, GetValueFunc getValue) - { - ASSERT(slotBase); - ASSERT(getValue); - m_getValue = getValue; - m_slotBase = slotBase; - } - - void setCustomIndex(JSValue slotBase, unsigned index, GetValueFunc getValue) - { - ASSERT(slotBase); - ASSERT(getValue); - m_getValue = getValue; - m_slotBase = slotBase; - m_data.index = index; - } - - void setGetterSlot(JSObject* getterFunc) - { - ASSERT(getterFunc); - m_getValue = functionGetter; - m_data.getterFunc = getterFunc; - } - - void setUndefined() - { - setValue(jsUndefined()); - } - - JSValue slotBase() const - { - return m_slotBase; - } - - void setBase(JSValue base) - { - ASSERT(m_slotBase); - ASSERT(base); - m_slotBase = base; - } - - void clearBase() - { -#ifndef NDEBUG - m_slotBase = JSValue(); -#endif - } - - void clearValue() - { -#ifndef NDEBUG - m_value = JSValue(); -#endif - } - - void clearOffset() - { - // Clear offset even in release builds, in case this PropertySlot has been used before. - // (For other data members, we don't need to clear anything because reuse would meaningfully overwrite them.) - m_offset = WTF::notFound; - } - - unsigned index() const { return m_data.index; } - - private: - static JSValue functionGetter(ExecState*, const Identifier&, const PropertySlot&); - - GetValueFunc m_getValue; - - JSValue m_slotBase; - union { - JSObject* getterFunc; - JSValue* valueSlot; - Register* registerSlot; - unsigned index; - } m_data; - - JSValue m_value; - - size_t m_offset; - }; - -} // namespace JSC - -#endif // PropertySlot_h |