webkitgtk-2.4.9webkitgtk-2.4.9

1 files changed, 0 insertions, 237 deletions

diff --git a/Source/JavaScriptCore/bytecode/PutByIdVariant.cpp b/Source/JavaScriptCore/bytecode/PutByIdVariant.cpp
deleted file mode 100644
index e1b94ef13..000000000
--- a/Source/JavaScriptCore/bytecode/PutByIdVariant.cpp
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * Copyright (C) 2014, 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 "PutByIdVariant.h"
-
-#include "CallLinkStatus.h"
-#include "JSCInlines.h"
-#include <wtf/ListDump.h>
-
-namespace JSC {
-
-PutByIdVariant::PutByIdVariant(const PutByIdVariant& other)
-    : PutByIdVariant()
-{
-    *this = other;
-}
-
-PutByIdVariant& PutByIdVariant::operator=(const PutByIdVariant& other)
-{
-    m_kind = other.m_kind;
-    m_oldStructure = other.m_oldStructure;
-    m_newStructure = other.m_newStructure;
-    m_conditionSet = other.m_conditionSet;
-    m_offset = other.m_offset;
-    if (other.m_callLinkStatus)
-        m_callLinkStatus = std::make_unique<CallLinkStatus>(*other.m_callLinkStatus);
-    else
-        m_callLinkStatus = nullptr;
-    return *this;
-}
-
-PutByIdVariant PutByIdVariant::replace(const StructureSet& structure, PropertyOffset offset)
-{
-    PutByIdVariant result;
-    result.m_kind = Replace;
-    result.m_oldStructure = structure;
-    result.m_offset = offset;
-    return result;
-}
-
-PutByIdVariant PutByIdVariant::transition(
-    const StructureSet& oldStructure, Structure* newStructure,
-    const ObjectPropertyConditionSet& conditionSet, PropertyOffset offset)
-{
-    PutByIdVariant result;
-    result.m_kind = Transition;
-    result.m_oldStructure = oldStructure;
-    result.m_newStructure = newStructure;
-    result.m_conditionSet = conditionSet;
-    result.m_offset = offset;
-    return result;
-}
-
-PutByIdVariant PutByIdVariant::setter(
-    const StructureSet& structure, PropertyOffset offset,
-    const ObjectPropertyConditionSet& conditionSet,
-    std::unique_ptr<CallLinkStatus> callLinkStatus)
-{
-    PutByIdVariant result;
-    result.m_kind = Setter;
-    result.m_oldStructure = structure;
-    result.m_conditionSet = conditionSet;
-    result.m_offset = offset;
-    result.m_callLinkStatus = WTF::move(callLinkStatus);
-    return result;
-}
-
-Structure* PutByIdVariant::oldStructureForTransition() const
-{
-    ASSERT(kind() == Transition);
-    ASSERT(m_oldStructure.size() <= 2);
-    for (unsigned i = m_oldStructure.size(); i--;) {
-        Structure* structure = m_oldStructure[i];
-        if (structure != m_newStructure)
-            return structure;
-    }
-    RELEASE_ASSERT_NOT_REACHED();
-
-    return nullptr;
-}
-
-bool PutByIdVariant::writesStructures() const
-{
-    switch (kind()) {
-    case Transition:
-    case Setter:
-        return true;
-    default:
-        return false;
-    }
-}
-
-bool PutByIdVariant::reallocatesStorage() const
-{
-    switch (kind()) {
-    case Transition:
-        return oldStructureForTransition()->outOfLineCapacity() != newStructure()->outOfLineCapacity();
-    case Setter:
-        return true;
-    default:
-        return false;
-    }
-}
-
-bool PutByIdVariant::makesCalls() const
-{
-    return kind() == Setter;
-}
-
-bool PutByIdVariant::attemptToMerge(const PutByIdVariant& other)
-{
-    if (m_offset != other.m_offset)
-        return false;
-    
-    switch (m_kind) {
-    case Replace:
-        switch (other.m_kind) {
-        case Replace: {
-            ASSERT(m_conditionSet.isEmpty());
-            ASSERT(other.m_conditionSet.isEmpty());
-            
-            m_oldStructure.merge(other.m_oldStructure);
-            return true;
-        }
-            
-        case Transition: {
-            PutByIdVariant newVariant = other;
-            if (newVariant.attemptToMergeTransitionWithReplace(*this)) {
-                *this = newVariant;
-                return true;
-            }
-            return false;
-        }
-            
-        default:
-            return false;
-        }
-        
-    case Transition:
-        switch (other.m_kind) {
-        case Replace:
-            return attemptToMergeTransitionWithReplace(other);
-            
-        default:
-            return false;
-        }
-        
-    default:
-        return false;
-    }
-}
-
-bool PutByIdVariant::attemptToMergeTransitionWithReplace(const PutByIdVariant& replace)
-{
-    ASSERT(m_kind == Transition);
-    ASSERT(replace.m_kind == Replace);
-    ASSERT(m_offset == replace.m_offset);
-    ASSERT(!replace.writesStructures());
-    ASSERT(!replace.reallocatesStorage());
-    ASSERT(replace.conditionSet().isEmpty());
-    
-    // This sort of merging only works when we have one path along which we add a new field which
-    // transitions to structure S while the other path was already on structure S. This doesn't
-    // work if we need to reallocate anything or if the replace path is polymorphic.
-    
-    if (reallocatesStorage())
-        return false;
-    
-    if (replace.m_oldStructure.onlyStructure() != m_newStructure)
-        return false;
-    
-    m_oldStructure.merge(m_newStructure);
-    return true;
-}
-
-void PutByIdVariant::dump(PrintStream& out) const
-{
-    dumpInContext(out, 0);
-}
-
-void PutByIdVariant::dumpInContext(PrintStream& out, DumpContext* context) const
-{
-    switch (kind()) {
-    case NotSet:
-        out.print("<empty>");
-        return;
-        
-    case Replace:
-        out.print(
-            "<Replace: ", inContext(structure(), context), ", offset = ", offset(), ">");
-        return;
-        
-    case Transition:
-        out.print(
-            "<Transition: ", inContext(oldStructure(), context), " -> ",
-            pointerDumpInContext(newStructure(), context), ", [",
-            inContext(m_conditionSet, context), "], offset = ", offset(), ">");
-        return;
-        
-    case Setter:
-        out.print(
-            "<Setter: ", inContext(structure(), context), ", [",
-            inContext(m_conditionSet, context), "]");
-        out.print(", offset = ", m_offset);
-        out.print(", call = ", *m_callLinkStatus);
-        out.print(">");
-        return;
-    }
-    
-    RELEASE_ASSERT_NOT_REACHED();
-}
-
-} // namespace JSC
-