/* * Copyright (C) 2014 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 "ConstantStructureCheck.h" #include "JSCInlines.h" namespace JSC { void ConstantStructureCheck::dumpInContext(PrintStream& out, DumpContext* context) const { out.print( "(Check if ", inContext(JSValue(m_constant), context), " has structure ", pointerDumpInContext(m_structure, context), ")"); } void ConstantStructureCheck::dump(PrintStream& out) const { dumpInContext(out, nullptr); } Structure* structureFor(const ConstantStructureCheckVector& vector, JSCell* constant) { for (unsigned i = vector.size(); i--;) { if (vector[i].constant() == constant) return vector[i].structure(); } return nullptr; } bool areCompatible(const ConstantStructureCheckVector& a, const ConstantStructureCheckVector& b) { for (unsigned i = a.size(); i--;) { Structure* otherStructure = structureFor(b, a[i].constant()); if (!otherStructure) continue; if (a[i].structure() != otherStructure) return false; } return true; } void mergeInto(const ConstantStructureCheckVector& source, ConstantStructureCheckVector& target) { for (unsigned i = source.size(); i--;) { if (structureFor(target, source[i].constant())) continue; target.append(source[i]); } } } // namespace JSC