diff options
Diffstat (limited to 'Source/JavaScriptCore/bytecode/GetByIdVariant.cpp')
-rw-r--r-- | Source/JavaScriptCore/bytecode/GetByIdVariant.cpp | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/Source/JavaScriptCore/bytecode/GetByIdVariant.cpp b/Source/JavaScriptCore/bytecode/GetByIdVariant.cpp deleted file mode 100644 index a869d4a1c..000000000 --- a/Source/JavaScriptCore/bytecode/GetByIdVariant.cpp +++ /dev/null @@ -1,145 +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 "GetByIdVariant.h" - -#include "CallLinkStatus.h" -#include "JSCInlines.h" -#include <wtf/ListDump.h> - -namespace JSC { - -GetByIdVariant::GetByIdVariant( - const StructureSet& structureSet, PropertyOffset offset, - const ObjectPropertyConditionSet& conditionSet, - std::unique_ptr<CallLinkStatus> callLinkStatus, - JSFunction* intrinsicFunction) - : m_structureSet(structureSet) - , m_conditionSet(conditionSet) - , m_offset(offset) - , m_callLinkStatus(WTFMove(callLinkStatus)) - , m_intrinsicFunction(intrinsicFunction) -{ - if (!structureSet.size()) { - ASSERT(offset == invalidOffset); - ASSERT(conditionSet.isEmpty()); - } - if (intrinsicFunction) - ASSERT(intrinsic() != NoIntrinsic); -} - -GetByIdVariant::~GetByIdVariant() { } - -GetByIdVariant::GetByIdVariant(const GetByIdVariant& other) - : GetByIdVariant() -{ - *this = other; -} - -GetByIdVariant& GetByIdVariant::operator=(const GetByIdVariant& other) -{ - m_structureSet = other.m_structureSet; - m_conditionSet = other.m_conditionSet; - m_offset = other.m_offset; - m_intrinsicFunction = other.m_intrinsicFunction; - if (other.m_callLinkStatus) - m_callLinkStatus = std::make_unique<CallLinkStatus>(*other.m_callLinkStatus); - else - m_callLinkStatus = nullptr; - return *this; -} - -inline bool GetByIdVariant::canMergeIntrinsicStructures(const GetByIdVariant& other) const -{ - if (m_intrinsicFunction != other.m_intrinsicFunction) - return false; - switch (intrinsic()) { - case TypedArrayByteLengthIntrinsic: { - // We can merge these sets as long as the element size of the two sets is the same. - TypedArrayType thisType = (*m_structureSet.begin())->classInfo()->typedArrayStorageType; - TypedArrayType otherType = (*other.m_structureSet.begin())->classInfo()->typedArrayStorageType; - - ASSERT(isTypedView(thisType) && isTypedView(otherType)); - - return logElementSize(thisType) == logElementSize(otherType); - } - - default: - return true; - } - RELEASE_ASSERT_NOT_REACHED(); -} - -bool GetByIdVariant::attemptToMerge(const GetByIdVariant& other) -{ - if (m_offset != other.m_offset) - return false; - if (m_callLinkStatus || other.m_callLinkStatus) - return false; - - if (!canMergeIntrinsicStructures(other)) - return false; - - if (m_conditionSet.isEmpty() != other.m_conditionSet.isEmpty()) - return false; - - ObjectPropertyConditionSet mergedConditionSet; - if (!m_conditionSet.isEmpty()) { - mergedConditionSet = m_conditionSet.mergedWith(other.m_conditionSet); - if (!mergedConditionSet.isValid() || !mergedConditionSet.hasOneSlotBaseCondition()) - return false; - } - m_conditionSet = mergedConditionSet; - - m_structureSet.merge(other.m_structureSet); - - return true; -} - -void GetByIdVariant::dump(PrintStream& out) const -{ - dumpInContext(out, 0); -} - -void GetByIdVariant::dumpInContext(PrintStream& out, DumpContext* context) const -{ - if (!isSet()) { - out.print("<empty>"); - return; - } - - out.print( - "<", inContext(structureSet(), context), ", ", inContext(m_conditionSet, context)); - out.print(", offset = ", offset()); - if (m_callLinkStatus) - out.print(", call = ", *m_callLinkStatus); - if (m_intrinsicFunction) - out.print(", intrinsic = ", *m_intrinsicFunction); - out.print(">"); -} - -} // namespace JSC - |