1/* 2 * Copyright (C) 2009, 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef CachedCall_h 27#define CachedCall_h 28 29#include "CallFrameClosure.h" 30#include "ExceptionHelpers.h" 31#include "JSFunction.h" 32#include "JSGlobalObject.h" 33#include "Interpreter.h" 34#include "ProtoCallFrame.h" 35#include "VMEntryScope.h" 36 37namespace JSC { 38 class CachedCall { 39 WTF_MAKE_NONCOPYABLE(CachedCall); WTF_MAKE_FAST_ALLOCATED; 40 public: 41 CachedCall(CallFrame* callFrame, JSFunction* function, int argumentCount) 42 : m_valid(false) 43 , m_interpreter(callFrame->interpreter()) 44 , m_entryScope(callFrame->vm(), function->scope()->globalObject()) 45 { 46 ASSERT(!function->isHostFunctionNonInline()); 47 if (callFrame->vm().isSafeToRecurse()) { 48 m_arguments.resize(argumentCount); 49 m_closure = m_interpreter->prepareForRepeatCall(function->jsExecutable(), callFrame, &m_protoCallFrame, function, argumentCount + 1, function->scope(), m_arguments.data()); 50 } else 51 throwStackOverflowError(callFrame); 52 m_valid = !callFrame->hadException(); 53 } 54 55 JSValue call() 56 { 57 ASSERT(m_valid); 58 return m_interpreter->execute(m_closure); 59 } 60 void setThis(JSValue v) { m_protoCallFrame.setThisValue(v); } 61 void setArgument(int n, JSValue v) { m_protoCallFrame.setArgument(n, v); } 62 63 private: 64 bool m_valid; 65 Interpreter* m_interpreter; 66 VMEntryScope m_entryScope; 67 ProtoCallFrame m_protoCallFrame; 68 Vector<JSValue> m_arguments; 69 CallFrameClosure m_closure; 70 }; 71} 72 73#endif 74