webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 0 insertions, 298 deletions

diff --git a/Source/JavaScriptCore/runtime/Arguments.h b/Source/JavaScriptCore/runtime/Arguments.h
deleted file mode 100644
index 18f389171..000000000
--- a/Source/JavaScriptCore/runtime/Arguments.h
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
- *  Copyright (C) 2003, 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.
- *
- */
-
-#ifndef Arguments_h
-#define Arguments_h
-
-#include "CodeOrigin.h"
-#include "JSActivation.h"
-#include "JSDestructibleObject.h"
-#include "JSFunction.h"
-#include "JSGlobalObject.h"
-#include "Interpreter.h"
-#include "ObjectConstructor.h"
-#include <wtf/StdLibExtras.h>
-
-namespace JSC {
-
-class Arguments : public JSDestructibleObject {
-    friend class JIT;
-    friend class JSArgumentsIterator;
-public:
-    typedef JSDestructibleObject Base;
-
-    static Arguments* create(VM& vm, CallFrame* callFrame)
-    {
-        Arguments* arguments = new (NotNull, allocateCell<Arguments>(vm.heap)) Arguments(callFrame);
-        arguments->finishCreation(callFrame);
-        return arguments;
-    }
-        
-    static Arguments* create(VM& vm, CallFrame* callFrame, InlineCallFrame* inlineCallFrame)
-    {
-        Arguments* arguments = new (NotNull, allocateCell<Arguments>(vm.heap)) Arguments(callFrame);
-        arguments->finishCreation(callFrame, inlineCallFrame);
-        return arguments;
-    }
-
-    enum { MaxArguments = 0x10000 };
-
-private:
-    enum NoParametersType { NoParameters };
-        
-    Arguments(CallFrame*);
-    Arguments(CallFrame*, NoParametersType);
-        
-public:
-    DECLARE_INFO;
-
-    static void visitChildren(JSCell*, SlotVisitor&);
-
-    void fillArgList(ExecState*, MarkedArgumentBuffer&);
-
-    uint32_t length(ExecState* exec) const 
-    {
-        if (UNLIKELY(m_overrodeLength))
-            return get(exec, exec->propertyNames().length).toUInt32(exec);
-        return m_numArguments; 
-    }
-        
-    void copyToArguments(ExecState*, CallFrame*, uint32_t length);
-    void tearOff(CallFrame*);
-    void tearOff(CallFrame*, InlineCallFrame*);
-    bool isTornOff() const { return m_registerArray.get(); }
-    void didTearOffActivation(ExecState*, JSActivation*);
-
-    static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype) 
-    { 
-        return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info()); 
-    }
-    
-    static ptrdiff_t offsetOfNumArguments() { return OBJECT_OFFSETOF(Arguments, m_numArguments); }
-    static ptrdiff_t offsetOfRegisters() { return OBJECT_OFFSETOF(Arguments, m_registers); }
-    static ptrdiff_t offsetOfSlowArgumentData() { return OBJECT_OFFSETOF(Arguments, m_slowArgumentData); }
-    static ptrdiff_t offsetOfOverrodeLength() { return OBJECT_OFFSETOF(Arguments, m_overrodeLength); }
-    
-protected:
-    static const unsigned StructureFlags = OverridesGetOwnPropertySlot | InterceptsGetOwnPropertySlotByIndexEvenWhenLengthIsNotZero | OverridesVisitChildren | OverridesGetPropertyNames | JSObject::StructureFlags;
-
-    void finishCreation(CallFrame*);
-    void finishCreation(CallFrame*, InlineCallFrame*);
-
-private:
-    static void destroy(JSCell*);
-    static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
-    static bool getOwnPropertySlotByIndex(JSObject*, ExecState*, unsigned propertyName, PropertySlot&);
-    static void getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
-    static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
-    static void putByIndex(JSCell*, ExecState*, unsigned propertyName, JSValue, bool shouldThrow);
-    static bool deleteProperty(JSCell*, ExecState*, PropertyName);
-    static bool deletePropertyByIndex(JSCell*, ExecState*, unsigned propertyName);
-    static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
-    void createStrictModeCallerIfNecessary(ExecState*);
-    void createStrictModeCalleeIfNecessary(ExecState*);
-
-    bool isArgument(size_t);
-    bool trySetArgument(VM&, size_t argument, JSValue);
-    JSValue tryGetArgument(size_t argument);
-    bool isDeletedArgument(size_t);
-    bool tryDeleteArgument(size_t);
-    WriteBarrierBase<Unknown>& argument(size_t);
-    void allocateSlowArguments();
-
-    void init(CallFrame*);
-
-    WriteBarrier<JSActivation> m_activation;
-
-    unsigned m_numArguments;
-
-    // We make these full byte booleans to make them easy to test from the JIT,
-    // and because even if they were single-bit booleans we still wouldn't save
-    // any space.
-    bool m_overrodeLength; 
-    bool m_overrodeCallee;
-    bool m_overrodeCaller;
-    bool m_isStrictMode;
-
-    WriteBarrierBase<Unknown>* m_registers;
-    std::unique_ptr<WriteBarrier<Unknown>[]> m_registerArray;
-
-    struct SlowArgumentData {
-        std::unique_ptr<SlowArgument[]> slowArguments;
-        int bytecodeToMachineCaptureOffset; // Add this if you have a bytecode offset into captured registers and you want the machine offset instead. Subtract if you want to do the opposite.
-    };
-    
-    std::unique_ptr<SlowArgumentData> m_slowArgumentData;
-
-    WriteBarrier<JSFunction> m_callee;
-};
-
-Arguments* asArguments(JSValue);
-
-inline Arguments* asArguments(JSValue value)
-{
-    ASSERT(asObject(value)->inherits(Arguments::info()));
-    return static_cast<Arguments*>(asObject(value));
-}
-
-inline Arguments::Arguments(CallFrame* callFrame)
-    : JSDestructibleObject(callFrame->vm(), callFrame->lexicalGlobalObject()->argumentsStructure())
-{
-}
-
-inline Arguments::Arguments(CallFrame* callFrame, NoParametersType)
-    : JSDestructibleObject(callFrame->vm(), callFrame->lexicalGlobalObject()->argumentsStructure())
-{
-}
-
-inline void Arguments::allocateSlowArguments()
-{
-    if (m_slowArgumentData)
-        return;
-    m_slowArgumentData = std::make_unique<SlowArgumentData>();
-    m_slowArgumentData->bytecodeToMachineCaptureOffset = 0;
-    m_slowArgumentData->slowArguments = std::make_unique<SlowArgument[]>(m_numArguments);
-    for (size_t i = 0; i < m_numArguments; ++i) {
-        ASSERT(m_slowArgumentData->slowArguments[i].status == SlowArgument::Normal);
-        m_slowArgumentData->slowArguments[i].index = CallFrame::argumentOffset(i);
-    }
-}
-
-inline bool Arguments::tryDeleteArgument(size_t argument)
-{
-    if (!isArgument(argument))
-        return false;
-    allocateSlowArguments();
-    m_slowArgumentData->slowArguments[argument].status = SlowArgument::Deleted;
-    return true;
-}
-
-inline bool Arguments::trySetArgument(VM& vm, size_t argument, JSValue value)
-{
-    if (!isArgument(argument))
-        return false;
-    this->argument(argument).set(vm, this, value);
-    return true;
-}
-
-inline JSValue Arguments::tryGetArgument(size_t argument)
-{
-    if (!isArgument(argument))
-        return JSValue();
-    return this->argument(argument).get();
-}
-
-inline bool Arguments::isDeletedArgument(size_t argument)
-{
-    if (argument >= m_numArguments)
-        return false;
-    if (!m_slowArgumentData)
-        return false;
-    if (m_slowArgumentData->slowArguments[argument].status != SlowArgument::Deleted)
-        return false;
-    return true;
-}
-
-inline bool Arguments::isArgument(size_t argument)
-{
-    if (argument >= m_numArguments)
-        return false;
-    if (m_slowArgumentData && m_slowArgumentData->slowArguments[argument].status == SlowArgument::Deleted)
-        return false;
-    return true;
-}
-
-inline WriteBarrierBase<Unknown>& Arguments::argument(size_t argument)
-{
-    ASSERT(isArgument(argument));
-    if (!m_slowArgumentData)
-        return m_registers[CallFrame::argumentOffset(argument)];
-
-    int index = m_slowArgumentData->slowArguments[argument].index;
-    if (!m_activation || m_slowArgumentData->slowArguments[argument].status != SlowArgument::Captured)
-        return m_registers[index];
-
-    return m_activation->registerAt(index - m_slowArgumentData->bytecodeToMachineCaptureOffset);
-}
-
-inline void Arguments::finishCreation(CallFrame* callFrame)
-{
-    Base::finishCreation(callFrame->vm());
-    ASSERT(inherits(info()));
-
-    JSFunction* callee = jsCast<JSFunction*>(callFrame->callee());
-    m_numArguments = callFrame->argumentCount();
-    m_registers = reinterpret_cast<WriteBarrierBase<Unknown>*>(callFrame->registers());
-    m_callee.set(callFrame->vm(), this, callee);
-    m_overrodeLength = false;
-    m_overrodeCallee = false;
-    m_overrodeCaller = false;
-    m_isStrictMode = callFrame->codeBlock()->isStrictMode();
-
-    CodeBlock* codeBlock = callFrame->codeBlock();
-    if (codeBlock->hasSlowArguments()) {
-        SymbolTable* symbolTable = codeBlock->symbolTable();
-        const SlowArgument* slowArguments = codeBlock->machineSlowArguments();
-        allocateSlowArguments();
-        size_t count = std::min<unsigned>(m_numArguments, symbolTable->parameterCount());
-        for (size_t i = 0; i < count; ++i)
-            m_slowArgumentData->slowArguments[i] = slowArguments[i];
-        m_slowArgumentData->bytecodeToMachineCaptureOffset =
-            codeBlock->framePointerOffsetToGetActivationRegisters();
-    }
-
-    // The bytecode generator omits op_tear_off_activation in cases of no
-    // declared parameters, so we need to tear off immediately.
-    if (m_isStrictMode || !callee->jsExecutable()->parameterCount())
-        tearOff(callFrame);
-}
-
-inline void Arguments::finishCreation(CallFrame* callFrame, InlineCallFrame* inlineCallFrame)
-{
-    Base::finishCreation(callFrame->vm());
-    ASSERT(inherits(info()));
-
-    JSFunction* callee = inlineCallFrame->calleeForCallFrame(callFrame);
-    m_numArguments = inlineCallFrame->arguments.size() - 1;
-    
-    if (m_numArguments) {
-        int offsetForArgumentOne = inlineCallFrame->arguments[1].virtualRegister().offset();
-        m_registers = reinterpret_cast<WriteBarrierBase<Unknown>*>(callFrame->registers()) + offsetForArgumentOne - virtualRegisterForArgument(1).offset();
-    } else
-        m_registers = 0;
-    m_callee.set(callFrame->vm(), this, callee);
-    m_overrodeLength = false;
-    m_overrodeCallee = false;
-    m_overrodeCaller = false;
-    m_isStrictMode = jsCast<FunctionExecutable*>(inlineCallFrame->executable.get())->isStrictMode();
-    ASSERT(!jsCast<FunctionExecutable*>(inlineCallFrame->executable.get())->symbolTable(inlineCallFrame->isCall ? CodeForCall : CodeForConstruct)->slowArguments());
-
-    // The bytecode generator omits op_tear_off_activation in cases of no
-    // declared parameters, so we need to tear off immediately.
-    if (m_isStrictMode || !callee->jsExecutable()->parameterCount())
-        tearOff(callFrame, inlineCallFrame);
-}
-
-} // namespace JSC
-
-#endif // Arguments_h