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Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/runtime/Arguments.cpp')
-rw-r--r-- | src/3rdparty/webkit/JavaScriptCore/runtime/Arguments.cpp | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/Arguments.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/Arguments.cpp deleted file mode 100644 index bb30e3b..0000000 --- a/src/3rdparty/webkit/JavaScriptCore/runtime/Arguments.cpp +++ /dev/null @@ -1,304 +0,0 @@ -/* - * Copyright (C) 1999-2002 Harri Porten (porten@kde.org) - * Copyright (C) 2001 Peter Kelly (pmk@post.com) - * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. - * Copyright (C) 2007 Cameron Zwarich (cwzwarich@uwaterloo.ca) - * Copyright (C) 2007 Maks Orlovich - * - * 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 "Arguments.h" - -#include "JSActivation.h" -#include "JSFunction.h" -#include "JSGlobalObject.h" - -using namespace std; - -namespace JSC { - -ASSERT_CLASS_FITS_IN_CELL(Arguments); - -const ClassInfo Arguments::info = { "Arguments", 0, 0, 0 }; - -Arguments::~Arguments() -{ - if (d->extraArguments != d->extraArgumentsFixedBuffer) - delete [] d->extraArguments; -} - -void Arguments::markChildren(MarkStack& markStack) -{ - JSObject::markChildren(markStack); - - if (d->registerArray) - markStack.appendValues(reinterpret_cast<JSValue*>(d->registerArray.get()), d->numParameters); - - if (d->extraArguments) { - unsigned numExtraArguments = d->numArguments - d->numParameters; - markStack.appendValues(reinterpret_cast<JSValue*>(d->extraArguments), numExtraArguments); - } - - markStack.append(d->callee); - - if (d->activation) - markStack.append(d->activation); -} - -void Arguments::copyToRegisters(ExecState* exec, Register* buffer, uint32_t maxSize) -{ - if (UNLIKELY(d->overrodeLength)) { - unsigned length = min(get(exec, exec->propertyNames().length).toUInt32(exec), maxSize); - for (unsigned i = 0; i < length; i++) - buffer[i] = get(exec, i); - return; - } - - if (LIKELY(!d->deletedArguments)) { - unsigned parametersLength = min(min(d->numParameters, d->numArguments), maxSize); - unsigned i = 0; - for (; i < parametersLength; ++i) - buffer[i] = d->registers[d->firstParameterIndex + i].jsValue(); - for (; i < d->numArguments; ++i) - buffer[i] = d->extraArguments[i - d->numParameters].jsValue(); - return; - } - - unsigned parametersLength = min(min(d->numParameters, d->numArguments), maxSize); - unsigned i = 0; - for (; i < parametersLength; ++i) { - if (!d->deletedArguments[i]) - buffer[i] = d->registers[d->firstParameterIndex + i].jsValue(); - else - buffer[i] = get(exec, i); - } - for (; i < d->numArguments; ++i) { - if (!d->deletedArguments[i]) - buffer[i] = d->extraArguments[i - d->numParameters].jsValue(); - else - buffer[i] = get(exec, i); - } -} - -void Arguments::fillArgList(ExecState* exec, MarkedArgumentBuffer& args) -{ - if (UNLIKELY(d->overrodeLength)) { - unsigned length = get(exec, exec->propertyNames().length).toUInt32(exec); - for (unsigned i = 0; i < length; i++) - args.append(get(exec, i)); - return; - } - - if (LIKELY(!d->deletedArguments)) { - if (LIKELY(!d->numParameters)) { - args.initialize(d->extraArguments, d->numArguments); - return; - } - - if (d->numParameters == d->numArguments) { - args.initialize(&d->registers[d->firstParameterIndex], d->numArguments); - return; - } - - unsigned parametersLength = min(d->numParameters, d->numArguments); - unsigned i = 0; - for (; i < parametersLength; ++i) - args.append(d->registers[d->firstParameterIndex + i].jsValue()); - for (; i < d->numArguments; ++i) - args.append(d->extraArguments[i - d->numParameters].jsValue()); - return; - } - - unsigned parametersLength = min(d->numParameters, d->numArguments); - unsigned i = 0; - for (; i < parametersLength; ++i) { - if (!d->deletedArguments[i]) - args.append(d->registers[d->firstParameterIndex + i].jsValue()); - else - args.append(get(exec, i)); - } - for (; i < d->numArguments; ++i) { - if (!d->deletedArguments[i]) - args.append(d->extraArguments[i - d->numParameters].jsValue()); - else - args.append(get(exec, i)); - } -} - -bool Arguments::getOwnPropertySlot(ExecState* exec, unsigned i, PropertySlot& slot) -{ - if (i < d->numArguments && (!d->deletedArguments || !d->deletedArguments[i])) { - if (i < d->numParameters) { - slot.setRegisterSlot(&d->registers[d->firstParameterIndex + i]); - } else - slot.setValue(d->extraArguments[i - d->numParameters].jsValue()); - return true; - } - - return JSObject::getOwnPropertySlot(exec, Identifier(exec, UString::from(i)), slot); -} - -bool Arguments::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot) -{ - bool isArrayIndex; - unsigned i = propertyName.toArrayIndex(&isArrayIndex); - if (isArrayIndex && i < d->numArguments && (!d->deletedArguments || !d->deletedArguments[i])) { - if (i < d->numParameters) { - slot.setRegisterSlot(&d->registers[d->firstParameterIndex + i]); - } else - slot.setValue(d->extraArguments[i - d->numParameters].jsValue()); - return true; - } - - if (propertyName == exec->propertyNames().length && LIKELY(!d->overrodeLength)) { - slot.setValue(jsNumber(exec, d->numArguments)); - return true; - } - - if (propertyName == exec->propertyNames().callee && LIKELY(!d->overrodeCallee)) { - slot.setValue(d->callee); - return true; - } - - return JSObject::getOwnPropertySlot(exec, propertyName, slot); -} - -bool Arguments::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor) -{ - bool isArrayIndex; - unsigned i = propertyName.toArrayIndex(&isArrayIndex); - if (isArrayIndex && i < d->numArguments && (!d->deletedArguments || !d->deletedArguments[i])) { - if (i < d->numParameters) { - descriptor.setDescriptor(d->registers[d->firstParameterIndex + i].jsValue(), DontEnum); - } else - descriptor.setDescriptor(d->extraArguments[i - d->numParameters].jsValue(), DontEnum); - return true; - } - - if (propertyName == exec->propertyNames().length && LIKELY(!d->overrodeLength)) { - descriptor.setDescriptor(jsNumber(exec, d->numArguments), DontEnum); - return true; - } - - if (propertyName == exec->propertyNames().callee && LIKELY(!d->overrodeCallee)) { - descriptor.setDescriptor(d->callee, DontEnum); - return true; - } - - return JSObject::getOwnPropertyDescriptor(exec, propertyName, descriptor); -} - -void Arguments::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode) -{ - if (mode == IncludeDontEnumProperties) { - for (unsigned i = 0; i < d->numArguments; ++i) { - if (!d->deletedArguments || !d->deletedArguments[i]) - propertyNames.add(Identifier(exec, UString::from(i))); - } - propertyNames.add(exec->propertyNames().callee); - propertyNames.add(exec->propertyNames().length); - } - JSObject::getOwnPropertyNames(exec, propertyNames, mode); -} - -void Arguments::put(ExecState* exec, unsigned i, JSValue value, PutPropertySlot& slot) -{ - if (i < d->numArguments && (!d->deletedArguments || !d->deletedArguments[i])) { - if (i < d->numParameters) - d->registers[d->firstParameterIndex + i] = JSValue(value); - else - d->extraArguments[i - d->numParameters] = JSValue(value); - return; - } - - JSObject::put(exec, Identifier(exec, UString::from(i)), value, slot); -} - -void Arguments::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot) -{ - bool isArrayIndex; - unsigned i = propertyName.toArrayIndex(&isArrayIndex); - if (isArrayIndex && i < d->numArguments && (!d->deletedArguments || !d->deletedArguments[i])) { - if (i < d->numParameters) - d->registers[d->firstParameterIndex + i] = JSValue(value); - else - d->extraArguments[i - d->numParameters] = JSValue(value); - return; - } - - if (propertyName == exec->propertyNames().length && !d->overrodeLength) { - d->overrodeLength = true; - putDirect(propertyName, value, DontEnum); - return; - } - - if (propertyName == exec->propertyNames().callee && !d->overrodeCallee) { - d->overrodeCallee = true; - putDirect(propertyName, value, DontEnum); - return; - } - - JSObject::put(exec, propertyName, value, slot); -} - -bool Arguments::deleteProperty(ExecState* exec, unsigned i) -{ - if (i < d->numArguments) { - if (!d->deletedArguments) { - d->deletedArguments.set(new bool[d->numArguments]); - memset(d->deletedArguments.get(), 0, sizeof(bool) * d->numArguments); - } - if (!d->deletedArguments[i]) { - d->deletedArguments[i] = true; - return true; - } - } - - return JSObject::deleteProperty(exec, Identifier(exec, UString::from(i))); -} - -bool Arguments::deleteProperty(ExecState* exec, const Identifier& propertyName) -{ - bool isArrayIndex; - unsigned i = propertyName.toArrayIndex(&isArrayIndex); - if (isArrayIndex && i < d->numArguments) { - if (!d->deletedArguments) { - d->deletedArguments.set(new bool[d->numArguments]); - memset(d->deletedArguments.get(), 0, sizeof(bool) * d->numArguments); - } - if (!d->deletedArguments[i]) { - d->deletedArguments[i] = true; - return true; - } - } - - if (propertyName == exec->propertyNames().length && !d->overrodeLength) { - d->overrodeLength = true; - return true; - } - - if (propertyName == exec->propertyNames().callee && !d->overrodeCallee) { - d->overrodeCallee = true; - return true; - } - - return JSObject::deleteProperty(exec, propertyName); -} - -} // namespace JSC |