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