1 | /* |
2 | * Copyright (C) 2009 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 CallFrameClosure_h |
27 | #define CallFrameClosure_h |
28 | |
29 | namespace JSC { |
30 | |
31 | struct CallFrameClosure { |
32 | CallFrame* oldCallFrame; |
33 | CallFrame* newCallFrame; |
34 | JSFunction* function; |
35 | FunctionExecutable* functionExecutable; |
36 | JSGlobalData* globalData; |
37 | Register* oldEnd; |
38 | ScopeChainNode* scopeChain; |
39 | int expectedParams; |
40 | int providedParams; |
41 | |
42 | void setArgument(int arg, JSValue value) |
43 | { |
44 | if (arg < expectedParams) |
45 | newCallFrame[arg - RegisterFile::CallFrameHeaderSize - expectedParams] = value; |
46 | else |
47 | newCallFrame[arg - RegisterFile::CallFrameHeaderSize - expectedParams - providedParams] = value; |
48 | } |
49 | void resetCallFrame() |
50 | { |
51 | newCallFrame->setScopeChain(scopeChain); |
52 | newCallFrame->setCalleeArguments(JSValue()); |
53 | for (int i = providedParams; i < expectedParams; ++i) |
54 | newCallFrame[i - RegisterFile::CallFrameHeaderSize - expectedParams] = jsUndefined(); |
55 | } |
56 | }; |
57 | |
58 | } |
59 | |
60 | #endif |
61 | |