1/* 2 * Copyright (C) 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#include "config.h" 27#include "ProtoCallFrame.h" 28 29#include "CodeBlock.h" 30#include "JSCInlines.h" 31#include "StackAlignment.h" 32 33namespace JSC { 34 35void ProtoCallFrame::init(CodeBlock* codeBlock, JSScope* scope, JSObject* callee, JSValue thisValue, int argCountIncludingThis, JSValue* otherArgs) 36{ 37 this->args = otherArgs; 38 this->setCodeBlock(codeBlock); 39 this->setScope(scope); 40 this->setCallee(callee); 41 this->setArgumentCountIncludingThis(argCountIncludingThis); 42 size_t paddedArgsCount = argCountIncludingThis; 43 if (codeBlock) { 44 size_t numParameters = codeBlock->numParameters(); 45 if (paddedArgsCount < numParameters) 46 paddedArgsCount = numParameters; 47 } 48 // Round up paddedArgsCount to keep the stack frame size aligned. 49 paddedArgsCount = roundArgumentCountToAlignFrame(paddedArgsCount); 50 this->setPaddedArgCount(paddedArgsCount); 51 this->clearCurrentVPC(); 52 this->setThisValue(thisValue); 53} 54 55} // namespace JSC 56