mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
/*
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* Copyright (C) 2012, 2014, 2015 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(DFG_JIT)
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#include "DFGMinifiedID.h"
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#include "DFGNodeType.h"
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#include "InlineCallFrame.h"
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#include "JSCJSValue.h"
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namespace JSC { namespace DFG {
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struct Node;
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inline bool belongsInMinifiedGraph(NodeType type)
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{
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switch (type) {
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case JSConstant:
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case Int52Constant:
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case DoubleConstant:
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case PhantomDirectArguments:
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case PhantomClonedArguments:
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return true;
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default:
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return false;
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}
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}
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class MinifiedNode {
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public:
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MinifiedNode() { }
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static MinifiedNode fromNode(Node*);
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MinifiedID id() const { return m_id; }
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bool hasConstant() const { return m_hasConstant; }
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JSValue constant() const
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{
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return JSValue::decode(bitwise_cast<EncodedJSValue>(m_info.get()));
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}
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bool isPhantomDirectArguments() const { return m_isPhantomDirectArguments; }
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bool isPhantomClonedArguments() const { return m_isPhantomClonedArguments; }
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bool hasInlineCallFrame() const { return m_isPhantomDirectArguments || m_isPhantomClonedArguments; }
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InlineCallFrame* inlineCallFrame() const
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{
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return bitwise_cast<InlineCallFrame*>(static_cast<uintptr_t>(m_info.get()));
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}
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static MinifiedID getID(MinifiedNode* node) { return node->id(); }
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static bool compareByNodeIndex(const MinifiedNode& a, const MinifiedNode& b)
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{
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return a.m_id < b.m_id;
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}
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private:
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static bool hasConstant(NodeType type)
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{
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return type == JSConstant || type == Int52Constant || type == DoubleConstant;
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}
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Packed<uint64_t> m_info;
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MinifiedID m_id;
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bool m_hasConstant : 1;
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bool m_isPhantomDirectArguments : 1;
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bool m_isPhantomClonedArguments : 1;
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};
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} } // namespace JSC::DFG
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#endif // ENABLE(DFG_JIT)
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