| /* |
| * Copyright (C) 1999-2001 Harri Porten (porten@kde.org) |
| * Copyright (C) 2001 Peter Kelly (pmk@post.com) |
| * Copyright (C) 2003, 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. |
| * |
| */ |
| |
| #include "config.h" |
| #include "JSCell.h" |
| |
| #include "ArrayBufferView.h" |
| #include "JSFunction.h" |
| #include "JSString.h" |
| #include "JSObject.h" |
| #include "NumberObject.h" |
| #include "Operations.h" |
| #include <wtf/MathExtras.h> |
| |
| namespace JSC { |
| |
| STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(JSCell); |
| |
| void JSCell::destroy(JSCell* cell) |
| { |
| cell->JSCell::~JSCell(); |
| } |
| |
| void JSCell::copyBackingStore(JSCell*, CopyVisitor&, CopyToken) |
| { |
| } |
| |
| bool JSCell::getString(ExecState* exec, String& stringValue) const |
| { |
| if (!isString()) |
| return false; |
| stringValue = static_cast<const JSString*>(this)->value(exec); |
| return true; |
| } |
| |
| String JSCell::getString(ExecState* exec) const |
| { |
| return isString() ? static_cast<const JSString*>(this)->value(exec) : String(); |
| } |
| |
| JSObject* JSCell::getObject() |
| { |
| return isObject() ? asObject(this) : 0; |
| } |
| |
| const JSObject* JSCell::getObject() const |
| { |
| return isObject() ? static_cast<const JSObject*>(this) : 0; |
| } |
| |
| CallType JSCell::getCallData(JSCell*, CallData& callData) |
| { |
| callData.js.functionExecutable = 0; |
| callData.js.scope = 0; |
| callData.native.function = 0; |
| return CallTypeNone; |
| } |
| |
| ConstructType JSCell::getConstructData(JSCell*, ConstructData& constructData) |
| { |
| constructData.js.functionExecutable = 0; |
| constructData.js.scope = 0; |
| constructData.native.function = 0; |
| return ConstructTypeNone; |
| } |
| |
| void JSCell::put(JSCell* cell, ExecState* exec, PropertyName identifier, JSValue value, PutPropertySlot& slot) |
| { |
| if (cell->isString()) { |
| JSValue(cell).putToPrimitive(exec, identifier, value, slot); |
| return; |
| } |
| JSObject* thisObject = cell->toObject(exec, exec->lexicalGlobalObject()); |
| thisObject->methodTable()->put(thisObject, exec, identifier, value, slot); |
| } |
| |
| void JSCell::putByIndex(JSCell* cell, ExecState* exec, unsigned identifier, JSValue value, bool shouldThrow) |
| { |
| if (cell->isString()) { |
| PutPropertySlot slot(shouldThrow); |
| JSValue(cell).putToPrimitive(exec, Identifier::from(exec, identifier), value, slot); |
| return; |
| } |
| JSObject* thisObject = cell->toObject(exec, exec->lexicalGlobalObject()); |
| thisObject->methodTable()->putByIndex(thisObject, exec, identifier, value, shouldThrow); |
| } |
| |
| bool JSCell::deleteProperty(JSCell* cell, ExecState* exec, PropertyName identifier) |
| { |
| JSObject* thisObject = cell->toObject(exec, exec->lexicalGlobalObject()); |
| return thisObject->methodTable()->deleteProperty(thisObject, exec, identifier); |
| } |
| |
| bool JSCell::deletePropertyByIndex(JSCell* cell, ExecState* exec, unsigned identifier) |
| { |
| JSObject* thisObject = cell->toObject(exec, exec->lexicalGlobalObject()); |
| return thisObject->methodTable()->deletePropertyByIndex(thisObject, exec, identifier); |
| } |
| |
| JSValue JSCell::toThis(JSCell* cell, ExecState* exec, ECMAMode ecmaMode) |
| { |
| if (ecmaMode == StrictMode) |
| return cell; |
| return cell->toObject(exec, exec->lexicalGlobalObject()); |
| } |
| |
| JSValue JSCell::toPrimitive(ExecState* exec, PreferredPrimitiveType preferredType) const |
| { |
| if (isString()) |
| return static_cast<const JSString*>(this)->toPrimitive(exec, preferredType); |
| return static_cast<const JSObject*>(this)->toPrimitive(exec, preferredType); |
| } |
| |
| bool JSCell::getPrimitiveNumber(ExecState* exec, double& number, JSValue& value) const |
| { |
| if (isString()) |
| return static_cast<const JSString*>(this)->getPrimitiveNumber(exec, number, value); |
| return static_cast<const JSObject*>(this)->getPrimitiveNumber(exec, number, value); |
| } |
| |
| double JSCell::toNumber(ExecState* exec) const |
| { |
| if (isString()) |
| return static_cast<const JSString*>(this)->toNumber(exec); |
| return static_cast<const JSObject*>(this)->toNumber(exec); |
| } |
| |
| JSObject* JSCell::toObject(ExecState* exec, JSGlobalObject* globalObject) const |
| { |
| if (isString()) |
| return static_cast<const JSString*>(this)->toObject(exec, globalObject); |
| ASSERT(isObject()); |
| return jsCast<JSObject*>(const_cast<JSCell*>(this)); |
| } |
| |
| void slowValidateCell(JSCell* cell) |
| { |
| ASSERT_GC_OBJECT_LOOKS_VALID(cell); |
| } |
| |
| JSValue JSCell::defaultValue(const JSObject*, ExecState*, PreferredPrimitiveType) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return jsUndefined(); |
| } |
| |
| bool JSCell::getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| bool JSCell::getOwnPropertySlotByIndex(JSObject*, ExecState*, unsigned, PropertySlot&) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| void JSCell::getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| } |
| |
| void JSCell::getOwnNonIndexPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| } |
| |
| String JSCell::className(const JSObject*) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return String(); |
| } |
| |
| const char* JSCell::className() |
| { |
| return classInfo()->className; |
| } |
| |
| void JSCell::getPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| } |
| |
| bool JSCell::customHasInstance(JSObject*, ExecState*, JSValue) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| bool JSCell::defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| ArrayBuffer* JSCell::slowDownAndWasteMemory(JSArrayBufferView*) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| |
| PassRefPtr<ArrayBufferView> JSCell::getTypedArrayImpl(JSArrayBufferView*) |
| { |
| RELEASE_ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| |
| } // namespace JSC |