/* * Copyright (C) 2019 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. */ #pragma once #include "FuzzerAgent.h" #include "Opcode.h" #include <wtf/Lock.h> namespace JSC { class VM; struct PredictionTarget { BytecodeIndex bytecodeIndex; int divot; int startOffset; int endOffset; unsigned line; unsigned column; OpcodeID opcodeId; String sourceFilename; String lookupKey; }; class FileBasedFuzzerAgentBase : public FuzzerAgent { WTF_MAKE_FAST_ALLOCATED; public: FileBasedFuzzerAgentBase(VM&); protected: Lock m_lock; virtual SpeculatedType getPredictionInternal(CodeBlock*, PredictionTarget&, SpeculatedType original) = 0; public: SpeculatedType getPrediction(CodeBlock*, const CodeOrigin&, SpeculatedType original) final; protected: static String createLookupKey(const String& sourceFilename, OpcodeID, int startLocation, int endLocation); static OpcodeID opcodeAliasForLookupKey(const OpcodeID&); }; } // namespace JSC