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1 files changed, 0 insertions, 157 deletions

diff --git a/Source/JavaScriptCore/runtime/ScopedArguments.h b/Source/JavaScriptCore/runtime/ScopedArguments.h
deleted file mode 100644
index 8d36a1bab..000000000
--- a/Source/JavaScriptCore/runtime/ScopedArguments.h
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Copyright (C) 2015 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#ifndef ScopedArguments_h
-#define ScopedArguments_h
-
-#include "GenericArguments.h"
-#include "JSLexicalEnvironment.h"
-
-namespace JSC {
-
-// This is an Arguments-class object that we create when you say "arguments" inside a function,
-// and one or more of the arguments may be captured in the function's activation. The function
-// will copy its formally declared arguments into the activation and then create this object. This
-// object will store the overflow arguments, if there are any. This object will use the symbol
-// table's ScopedArgumentsTable and the activation, or its overflow storage, to handle all indexed
-// lookups.
-class ScopedArguments : public GenericArguments<ScopedArguments> {
-private:
-    ScopedArguments(VM&, Structure*, unsigned totalLength);
-    void finishCreation(VM&, JSFunction* callee, ScopedArgumentsTable*, JSLexicalEnvironment*);
-
-public:
-    // Creates an arguments object but leaves it uninitialized. This is dangerous if we GC right
-    // after allocation.
-    static ScopedArguments* createUninitialized(VM&, Structure*, JSFunction* callee, ScopedArgumentsTable*, JSLexicalEnvironment*, unsigned totalLength);
-    
-    // Creates an arguments object and initializes everything to the empty value. Use this if you
-    // cannot guarantee that you'll immediately initialize all of the elements.
-    static ScopedArguments* create(VM&, Structure*, JSFunction* callee, ScopedArgumentsTable*, JSLexicalEnvironment*, unsigned totalLength);
-    
-    // Creates an arguments object by copying the arguments from the stack.
-    static ScopedArguments* createByCopying(ExecState*, ScopedArgumentsTable*, JSLexicalEnvironment*);
-    
-    // Creates an arguments object by copying the arguments from a well-defined stack location.
-    static ScopedArguments* createByCopyingFrom(VM&, Structure*, Register* argumentsStart, unsigned totalLength, JSFunction* callee, ScopedArgumentsTable*, JSLexicalEnvironment*);
-    
-    static void visitChildren(JSCell*, SlotVisitor&);
-    
-    uint32_t internalLength() const
-    {
-        return m_totalLength;
-    }
-    
-    uint32_t length(ExecState* exec) const
-    {
-        if (UNLIKELY(m_overrodeThings))
-            return get(exec, exec->propertyNames().length).toUInt32(exec);
-        return internalLength();
-    }
-    
-    bool canAccessIndexQuickly(uint32_t i) const
-    {
-        if (i >= m_totalLength)
-            return false;
-        unsigned namedLength = m_table->length();
-        if (i < namedLength)
-            return !!m_table->get(i);
-        return !!overflowStorage()[i - namedLength].get();
-    }
-
-    bool canAccessArgumentIndexQuicklyInDFG(uint32_t i) const
-    {
-        return canAccessIndexQuickly(i);
-    }
-    
-    JSValue getIndexQuickly(uint32_t i) const
-    {
-        ASSERT_WITH_SECURITY_IMPLICATION(canAccessIndexQuickly(i));
-        unsigned namedLength = m_table->length();
-        if (i < namedLength)
-            return m_scope->variableAt(m_table->get(i)).get();
-        return overflowStorage()[i - namedLength].get();
-    }
-
-    void setIndexQuickly(VM& vm, uint32_t i, JSValue value)
-    {
-        ASSERT_WITH_SECURITY_IMPLICATION(canAccessIndexQuickly(i));
-        unsigned namedLength = m_table->length();
-        if (i < namedLength)
-            m_scope->variableAt(m_table->get(i)).set(vm, this, value);
-        else
-            overflowStorage()[i - namedLength].set(vm, this, value);
-    }
-
-    WriteBarrier<JSFunction>& callee()
-    {
-        return m_callee;
-    }
-    
-    bool overrodeThings() const { return m_overrodeThings; }
-    void overrideThings(VM&);
-    void overrideThingsIfNecessary(VM&);
-    void overrideArgument(VM&, uint32_t index);
-    
-    void copyToArguments(ExecState*, VirtualRegister firstElementDest, unsigned offset, unsigned length);
-
-    DECLARE_INFO;
-    
-    static Structure* createStructure(VM&, JSGlobalObject*, JSValue prototype);
-    
-    static ptrdiff_t offsetOfOverrodeThings() { return OBJECT_OFFSETOF(ScopedArguments, m_overrodeThings); }
-    static ptrdiff_t offsetOfTotalLength() { return OBJECT_OFFSETOF(ScopedArguments, m_totalLength); }
-    static ptrdiff_t offsetOfTable() { return OBJECT_OFFSETOF(ScopedArguments, m_table); }
-    static ptrdiff_t offsetOfScope() { return OBJECT_OFFSETOF(ScopedArguments, m_scope); }
-    
-    static size_t overflowStorageOffset()
-    {
-        return WTF::roundUpToMultipleOf<sizeof(WriteBarrier<Unknown>)>(sizeof(ScopedArguments));
-    }
-    
-    static size_t allocationSize(unsigned overflowArgumentsLength)
-    {
-        return overflowStorageOffset() + sizeof(WriteBarrier<Unknown>) * overflowArgumentsLength;
-    }
-
-private:
-    WriteBarrier<Unknown>* overflowStorage() const
-    {
-        return bitwise_cast<WriteBarrier<Unknown>*>(
-            bitwise_cast<char*>(this) + overflowStorageOffset());
-    }
-    
-    
-    bool m_overrodeThings; // True if length, callee, and caller are fully materialized in the object.
-    unsigned m_totalLength; // The length of declared plus overflow arguments.
-    WriteBarrier<JSFunction> m_callee;
-    WriteBarrier<ScopedArgumentsTable> m_table;
-    WriteBarrier<JSLexicalEnvironment> m_scope;
-};
-
-} // namespace JSC
-
-#endif // ScopedArguments_h
-