webkitgtk-2.4.9webkitgtk-2.4.9

1 files changed, 0 insertions, 178 deletions

diff --git a/Source/JavaScriptCore/runtime/DirectArguments.cpp b/Source/JavaScriptCore/runtime/DirectArguments.cpp
deleted file mode 100644
index bb61e4faf..000000000
--- a/Source/JavaScriptCore/runtime/DirectArguments.cpp
+++ /dev/null
@@ -1,178 +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. 
- */
-
-#include "config.h"
-#include "DirectArguments.h"
-
-#include "CopyVisitorInlines.h"
-#include "GenericArgumentsInlines.h"
-#include "JSCInlines.h"
-
-namespace JSC {
-
-STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(DirectArguments);
-
-const ClassInfo DirectArguments::s_info = { "Arguments", &Base::s_info, 0, CREATE_METHOD_TABLE(DirectArguments) };
-
-DirectArguments::DirectArguments(VM& vm, Structure* structure, unsigned length, unsigned capacity)
-    : GenericArguments(vm, structure)
-    , m_length(length)
-    , m_minCapacity(capacity)
-{
-    // When we construct the object from C++ code, we expect the capacity to be at least as large as
-    // length. JIT-allocated DirectArguments objects play evil tricks, though.
-    ASSERT(capacity >= length);
-}
-
-DirectArguments* DirectArguments::createUninitialized(
-    VM& vm, Structure* structure, unsigned length, unsigned capacity)
-{
-    DirectArguments* result =
-        new (NotNull, allocateCell<DirectArguments>(vm.heap, allocationSize(capacity)))
-        DirectArguments(vm, structure, length, capacity);
-    result->finishCreation(vm);
-    return result;
-}
-
-DirectArguments* DirectArguments::create(VM& vm, Structure* structure, unsigned length, unsigned capacity)
-{
-    DirectArguments* result = createUninitialized(vm, structure, length, capacity);
-    
-    for (unsigned i = capacity; i--;)
-        result->storage()[i].clear();
-    
-    return result;
-}
-
-DirectArguments* DirectArguments::createByCopying(ExecState* exec)
-{
-    VM& vm = exec->vm();
-    
-    unsigned length = exec->argumentCount();
-    unsigned capacity = std::max(length, static_cast<unsigned>(exec->codeBlock()->numParameters() - 1));
-    DirectArguments* result = createUninitialized(
-        vm, exec->lexicalGlobalObject()->directArgumentsStructure(), length, capacity);
-    
-    for (unsigned i = capacity; i--;)
-        result->storage()[i].set(vm, result, exec->getArgumentUnsafe(i));
-    
-    result->callee().set(vm, result, jsCast<JSFunction*>(exec->callee()));
-    
-    return result;
-}
-
-void DirectArguments::visitChildren(JSCell* thisCell, SlotVisitor& visitor)
-{
-    DirectArguments* thisObject = static_cast<DirectArguments*>(thisCell);
-    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
-    Base::visitChildren(thisObject, visitor);
-    
-    visitor.appendValues(thisObject->storage(), std::max(thisObject->m_length, thisObject->m_minCapacity));
-    visitor.append(&thisObject->m_callee);
-    
-    if (thisObject->m_overrides) {
-        visitor.copyLater(
-            thisObject, DirectArgumentsOverridesCopyToken,
-            thisObject->m_overrides.get(), thisObject->overridesSize());
-    }
-}
-
-void DirectArguments::copyBackingStore(JSCell* thisCell, CopyVisitor& visitor, CopyToken token)
-{
-    DirectArguments* thisObject = static_cast<DirectArguments*>(thisCell);
-    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
-    
-    RELEASE_ASSERT(token == DirectArgumentsOverridesCopyToken);
-    
-    bool* oldOverrides = thisObject->m_overrides.get();
-    if (!oldOverrides)
-        return;
-    
-    if (visitor.checkIfShouldCopy(oldOverrides)) {
-        bool* newOverrides = static_cast<bool*>(visitor.allocateNewSpace(thisObject->overridesSize()));
-        memcpy(newOverrides, oldOverrides, thisObject->m_length);
-        thisObject->m_overrides.setWithoutWriteBarrier(newOverrides);
-        visitor.didCopy(oldOverrides, thisObject->overridesSize());
-    }
-}
-
-Structure* DirectArguments::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
-{
-    return Structure::create(vm, globalObject, prototype, TypeInfo(DirectArgumentsType, StructureFlags), info());
-}
-
-void DirectArguments::overrideThings(VM& vm)
-{
-    RELEASE_ASSERT(!m_overrides);
-    
-    putDirect(vm, vm.propertyNames->length, jsNumber(m_length), DontEnum);
-    putDirect(vm, vm.propertyNames->callee, m_callee.get(), DontEnum);
-    putDirect(vm, vm.propertyNames->iteratorSymbol, globalObject()->arrayProtoValuesFunction(), DontEnum);
-    
-    void* backingStore;
-    RELEASE_ASSERT(vm.heap.tryAllocateStorage(this, overridesSize(), &backingStore));
-    m_overrides.set(vm, this, static_cast<bool*>(backingStore));
-    for (unsigned i = m_length; i--;)
-        m_overrides.get()[i] = false;
-}
-
-void DirectArguments::overrideThingsIfNecessary(VM& vm)
-{
-    if (!m_overrides)
-        overrideThings(vm);
-}
-
-void DirectArguments::overrideArgument(VM& vm, unsigned index)
-{
-    overrideThingsIfNecessary(vm);
-    m_overrides.get()[index] = true;
-}
-
-void DirectArguments::copyToArguments(ExecState* exec, VirtualRegister firstElementDest, unsigned offset, unsigned length)
-{
-    if (!m_overrides) {
-        unsigned limit = std::min(length + offset, m_length);
-        unsigned i;
-        VirtualRegister start = firstElementDest - offset;
-        for (i = offset; i < limit; ++i)
-            exec->r(start + i) = storage()[i].get();
-        for (; i < length; ++i)
-            exec->r(start + i) = get(exec, i);
-        return;
-    }
-
-    GenericArguments::copyToArguments(exec, firstElementDest, offset, length);
-}
-
-unsigned DirectArguments::overridesSize()
-{
-    // We always allocate something; in the relatively uncommon case of overriding an empty argument we
-    // still allocate so that m_overrides is non-null. We use that to indicate that the other properties
-    // (length, etc) are overridden.
-    return WTF::roundUpToMultipleOf<8>(m_length ? m_length : 1);
-}
-
-} // namespace JSC
-