Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>

1 files changed, 0 insertions, 438 deletions

diff --git a/Source/JavaScriptCore/runtime/Arguments.cpp b/Source/JavaScriptCore/runtime/Arguments.cpp
deleted file mode 100644
index a188885e6..000000000
--- a/Source/JavaScriptCore/runtime/Arguments.cpp
+++ /dev/null
@@ -1,438 +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"
-#include "Operations.h"
-
-using namespace std;
-
-namespace JSC {
-
-const ClassInfo Arguments::s_info = { "Arguments", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(Arguments) };
-
-void Arguments::visitChildren(JSCell* cell, SlotVisitor& visitor)
-{
-    Arguments* thisObject = jsCast<Arguments*>(cell);
-    ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
-    COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
-    ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
-    JSObject::visitChildren(thisObject, visitor);
-
-    if (thisObject->m_registerArray)
-        visitor.appendValues(thisObject->m_registerArray.get(), thisObject->m_numArguments);
-    visitor.append(&thisObject->m_callee);
-    visitor.append(&thisObject->m_activation);
-}
-
-void Arguments::destroy(JSCell* cell)
-{
-    static_cast<Arguments*>(cell)->Arguments::~Arguments();
-}
-
-void Arguments::copyToArguments(ExecState* exec, CallFrame* callFrame, uint32_t length)
-{
-    if (UNLIKELY(m_overrodeLength)) {
-        length = min(get(exec, exec->propertyNames().length).toUInt32(exec), length);
-        for (unsigned i = 0; i < length; i++)
-            callFrame->setArgument(i, get(exec, i));
-        return;
-    }
-    ASSERT(length == this->length(exec));
-    for (size_t i = 0; i < length; ++i) {
-        if (JSValue value = tryGetArgument(i))
-            callFrame->setArgument(i, value);
-        else
-            callFrame->setArgument(i, get(exec, i));
-    }
-}
-
-void Arguments::fillArgList(ExecState* exec, MarkedArgumentBuffer& args)
-{
-    if (UNLIKELY(m_overrodeLength)) {
-        unsigned length = get(exec, exec->propertyNames().length).toUInt32(exec); 
-        for (unsigned i = 0; i < length; i++) 
-            args.append(get(exec, i)); 
-        return;
-    }
-    uint32_t length = this->length(exec);
-    for (size_t i = 0; i < length; ++i) {
-        if (JSValue value = tryGetArgument(i))
-            args.append(value);
-        else
-            args.append(get(exec, i));
-    }
-}
-
-bool Arguments::getOwnPropertySlotByIndex(JSCell* cell, ExecState* exec, unsigned i, PropertySlot& slot)
-{
-    Arguments* thisObject = jsCast<Arguments*>(cell);
-    if (JSValue value = thisObject->tryGetArgument(i)) {
-        slot.setValue(value);
-        return true;
-    }
-
-    return JSObject::getOwnPropertySlot(thisObject, exec, Identifier(exec, String::number(i)), slot);
-}
-    
-void Arguments::createStrictModeCallerIfNecessary(ExecState* exec)
-{
-    if (m_overrodeCaller)
-        return;
-
-    m_overrodeCaller = true;
-    PropertyDescriptor descriptor;
-    descriptor.setAccessorDescriptor(globalObject()->throwTypeErrorGetterSetter(exec), DontEnum | DontDelete | Accessor);
-    methodTable()->defineOwnProperty(this, exec, exec->propertyNames().caller, descriptor, false);
-}
-
-void Arguments::createStrictModeCalleeIfNecessary(ExecState* exec)
-{
-    if (m_overrodeCallee)
-        return;
-    
-    m_overrodeCallee = true;
-    PropertyDescriptor descriptor;
-    descriptor.setAccessorDescriptor(globalObject()->throwTypeErrorGetterSetter(exec), DontEnum | DontDelete | Accessor);
-    methodTable()->defineOwnProperty(this, exec, exec->propertyNames().callee, descriptor, false);
-}
-
-bool Arguments::getOwnPropertySlot(JSCell* cell, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
-{
-    Arguments* thisObject = jsCast<Arguments*>(cell);
-    unsigned i = propertyName.asIndex();
-    if (JSValue value = thisObject->tryGetArgument(i)) {
-        RELEASE_ASSERT(i < PropertyName::NotAnIndex);
-        slot.setValue(value);
-        return true;
-    }
-
-    if (propertyName == exec->propertyNames().length && LIKELY(!thisObject->m_overrodeLength)) {
-        slot.setValue(jsNumber(thisObject->m_numArguments));
-        return true;
-    }
-
-    if (propertyName == exec->propertyNames().callee && LIKELY(!thisObject->m_overrodeCallee)) {
-        if (!thisObject->m_isStrictMode) {
-            slot.setValue(thisObject->m_callee.get());
-            return true;
-        }
-        thisObject->createStrictModeCalleeIfNecessary(exec);
-    }
-
-    if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode)
-        thisObject->createStrictModeCallerIfNecessary(exec);
-
-    return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot);
-}
-
-bool Arguments::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
-{
-    Arguments* thisObject = jsCast<Arguments*>(object);
-    unsigned i = propertyName.asIndex();
-    if (JSValue value = thisObject->tryGetArgument(i)) {
-        RELEASE_ASSERT(i < PropertyName::NotAnIndex);
-        descriptor.setDescriptor(value, None);
-        return true;
-    }
-    
-    if (propertyName == exec->propertyNames().length && LIKELY(!thisObject->m_overrodeLength)) {
-        descriptor.setDescriptor(jsNumber(thisObject->m_numArguments), DontEnum);
-        return true;
-    }
-    
-    if (propertyName == exec->propertyNames().callee && LIKELY(!thisObject->m_overrodeCallee)) {
-        if (!thisObject->m_isStrictMode) {
-            descriptor.setDescriptor(thisObject->m_callee.get(), DontEnum);
-            return true;
-        }
-        thisObject->createStrictModeCalleeIfNecessary(exec);
-    }
-
-    if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode)
-        thisObject->createStrictModeCallerIfNecessary(exec);
-    
-    return JSObject::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
-}
-
-void Arguments::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
-{
-    Arguments* thisObject = jsCast<Arguments*>(object);
-    for (unsigned i = 0; i < thisObject->m_numArguments; ++i) {
-        if (!thisObject->isArgument(i))
-            continue;
-        propertyNames.add(Identifier(exec, String::number(i)));
-    }
-    if (mode == IncludeDontEnumProperties) {
-        propertyNames.add(exec->propertyNames().callee);
-        propertyNames.add(exec->propertyNames().length);
-    }
-    JSObject::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
-}
-
-void Arguments::putByIndex(JSCell* cell, ExecState* exec, unsigned i, JSValue value, bool shouldThrow)
-{
-    Arguments* thisObject = jsCast<Arguments*>(cell);
-    if (thisObject->trySetArgument(exec->vm(), i, value))
-        return;
-
-    PutPropertySlot slot(shouldThrow);
-    JSObject::put(thisObject, exec, Identifier(exec, String::number(i)), value, slot);
-}
-
-void Arguments::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
-{
-    Arguments* thisObject = jsCast<Arguments*>(cell);
-    unsigned i = propertyName.asIndex();
-    if (thisObject->trySetArgument(exec->vm(), i, value))
-        return;
-
-    if (propertyName == exec->propertyNames().length && !thisObject->m_overrodeLength) {
-        thisObject->m_overrodeLength = true;
-        thisObject->putDirect(exec->vm(), propertyName, value, DontEnum);
-        return;
-    }
-
-    if (propertyName == exec->propertyNames().callee && !thisObject->m_overrodeCallee) {
-        if (!thisObject->m_isStrictMode) {
-            thisObject->m_overrodeCallee = true;
-            thisObject->putDirect(exec->vm(), propertyName, value, DontEnum);
-            return;
-        }
-        thisObject->createStrictModeCalleeIfNecessary(exec);
-    }
-
-    if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode)
-        thisObject->createStrictModeCallerIfNecessary(exec);
-
-    JSObject::put(thisObject, exec, propertyName, value, slot);
-}
-
-bool Arguments::deletePropertyByIndex(JSCell* cell, ExecState* exec, unsigned i) 
-{
-    Arguments* thisObject = jsCast<Arguments*>(cell);
-    if (i < thisObject->m_numArguments) {
-        if (!Base::deletePropertyByIndex(cell, exec, i))
-            return false;
-        if (thisObject->tryDeleteArgument(i))
-            return true;
-    }
-    return JSObject::deletePropertyByIndex(thisObject, exec, i);
-}
-
-bool Arguments::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName) 
-{
-    if (exec->vm().isInDefineOwnProperty())
-        return Base::deleteProperty(cell, exec, propertyName);
-
-    Arguments* thisObject = jsCast<Arguments*>(cell);
-    unsigned i = propertyName.asIndex();
-    if (i < thisObject->m_numArguments) {
-        RELEASE_ASSERT(i < PropertyName::NotAnIndex);
-        if (!Base::deleteProperty(cell, exec, propertyName))
-            return false;
-        if (thisObject->tryDeleteArgument(i))
-            return true;
-    }
-
-    if (propertyName == exec->propertyNames().length && !thisObject->m_overrodeLength) {
-        thisObject->m_overrodeLength = true;
-        return true;
-    }
-
-    if (propertyName == exec->propertyNames().callee && !thisObject->m_overrodeCallee) {
-        if (!thisObject->m_isStrictMode) {
-            thisObject->m_overrodeCallee = true;
-            return true;
-        }
-        thisObject->createStrictModeCalleeIfNecessary(exec);
-    }
-    
-    if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode)
-        thisObject->createStrictModeCallerIfNecessary(exec);
-
-    return JSObject::deleteProperty(thisObject, exec, propertyName);
-}
-
-bool Arguments::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor, bool shouldThrow)
-{
-    Arguments* thisObject = jsCast<Arguments*>(object);
-    unsigned i = propertyName.asIndex();
-    if (i < thisObject->m_numArguments) {
-        RELEASE_ASSERT(i < PropertyName::NotAnIndex);
-        // If the property is not yet present on the object, and is not yet marked as deleted, then add it now.
-        PropertySlot slot;
-        if (!thisObject->isDeletedArgument(i) && !JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot)) {
-            JSValue value = thisObject->tryGetArgument(i);
-            ASSERT(value);
-            object->putDirectMayBeIndex(exec, propertyName, value);
-        }
-        if (!Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow))
-            return false;
-
-        // From ES 5.1, 10.6 Arguments Object
-        // 5. If the value of isMapped is not undefined, then
-        if (thisObject->isArgument(i)) {
-            // a. If IsAccessorDescriptor(Desc) is true, then
-            if (descriptor.isAccessorDescriptor()) {
-                // i. Call the [[Delete]] internal method of map passing P, and false as the arguments.
-                thisObject->tryDeleteArgument(i);
-            } else { // b. Else
-                // i. If Desc.[[Value]] is present, then
-                // 1. Call the [[Put]] internal method of map passing P, Desc.[[Value]], and Throw as the arguments.
-                if (descriptor.value())
-                    thisObject->trySetArgument(exec->vm(), i, descriptor.value());
-                // ii. If Desc.[[Writable]] is present and its value is false, then
-                // 1. Call the [[Delete]] internal method of map passing P and false as arguments.
-                if (descriptor.writablePresent() && !descriptor.writable())
-                    thisObject->tryDeleteArgument(i);
-            }
-        }
-        return true;
-    }
-
-    if (propertyName == exec->propertyNames().length && !thisObject->m_overrodeLength) {
-        thisObject->putDirect(exec->vm(), propertyName, jsNumber(thisObject->m_numArguments), DontEnum);
-        thisObject->m_overrodeLength = true;
-    } else if (propertyName == exec->propertyNames().callee && !thisObject->m_overrodeCallee) {
-        thisObject->putDirect(exec->vm(), propertyName, thisObject->m_callee.get(), DontEnum);
-        thisObject->m_overrodeCallee = true;
-    } else if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode)
-        thisObject->createStrictModeCallerIfNecessary(exec);
-
-    return Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow);
-}
-
-void Arguments::tearOff(CallFrame* callFrame)
-{
-    if (isTornOff())
-        return;
-
-    if (!m_numArguments)
-        return;
-
-    // Must be called for the same call frame from which it was created.
-    ASSERT(bitwise_cast<WriteBarrier<Unknown>*>(callFrame) == m_registers);
-    
-    m_registerArray = adoptArrayPtr(new WriteBarrier<Unknown>[m_numArguments]);
-    m_registers = m_registerArray.get() + CallFrame::offsetFor(m_numArguments + 1);
-
-    // If we have a captured argument that logically aliases activation storage,
-    // but we optimize away the activation, the argument needs to tear off into
-    // our storage. The simplest way to do this is to revert it to Normal status.
-    if (m_slowArguments && !m_activation) {
-        for (size_t i = 0; i < m_numArguments; ++i) {
-            if (m_slowArguments[i].status != SlowArgument::Captured)
-                continue;
-            m_slowArguments[i].status = SlowArgument::Normal;
-            m_slowArguments[i].index = CallFrame::argumentOffset(i);
-        }
-    }
-
-    if (!callFrame->isInlineCallFrame()) {
-        for (size_t i = 0; i < m_numArguments; ++i)
-            trySetArgument(callFrame->vm(), i, callFrame->argumentAfterCapture(i));
-        return;
-    }
-
-    tearOffForInlineCallFrame(
-        callFrame->vm(), callFrame->registers(), callFrame->inlineCallFrame());
-}
-
-void Arguments::didTearOffActivation(ExecState* exec, JSActivation* activation)
-{
-    RELEASE_ASSERT(activation);
-    if (isTornOff())
-        return;
-
-    if (!m_numArguments)
-        return;
-    
-    m_activation.set(exec->vm(), this, activation);
-    tearOff(exec);
-}
-
-void Arguments::tearOff(CallFrame* callFrame, InlineCallFrame* inlineCallFrame)
-{
-    if (isTornOff())
-        return;
-    
-    if (!m_numArguments)
-        return;
-    
-    m_registerArray = adoptArrayPtr(new WriteBarrier<Unknown>[m_numArguments]);
-    m_registers = m_registerArray.get() + CallFrame::offsetFor(m_numArguments + 1);
-
-    tearOffForInlineCallFrame(
-        callFrame->vm(), callFrame->registers() + inlineCallFrame->stackOffset,
-        inlineCallFrame);
-}
-
-void Arguments::tearOffForInlineCallFrame(VM& vm, Register* registers, InlineCallFrame* inlineCallFrame)
-{
-    for (size_t i = 0; i < m_numArguments; ++i) {
-        ValueRecovery& recovery = inlineCallFrame->arguments[i + 1];
-        // In the future we'll support displaced recoveries (indicating that the
-        // argument was flushed to a different location), but for now we don't do
-        // that so this code will fail if that were to happen. On the other hand,
-        // it's much less likely that we'll support in-register recoveries since
-        // this code does not (easily) have access to registers.
-        JSValue value;
-        Register* location = &registers[CallFrame::argumentOffset(i)];
-        switch (recovery.technique()) {
-        case AlreadyInJSStack:
-            value = location->jsValue();
-            break;
-        case AlreadyInJSStackAsUnboxedInt32:
-            value = jsNumber(location->unboxedInt32());
-            break;
-        case AlreadyInJSStackAsUnboxedCell:
-            value = location->unboxedCell();
-            break;
-        case AlreadyInJSStackAsUnboxedBoolean:
-            value = jsBoolean(location->unboxedBoolean());
-            break;
-        case AlreadyInJSStackAsUnboxedDouble:
-#if USE(JSVALUE64)
-            value = jsNumber(*bitwise_cast<double*>(location));
-#else
-            value = location->jsValue();
-#endif
-            break;
-        case Constant:
-            value = recovery.constant();
-            break;
-        default:
-            RELEASE_ASSERT_NOT_REACHED();
-            break;
-        }
-        trySetArgument(vm, i, value);
-    }
-}
-
-} // namespace JSC