| 1 | /*
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| 2 | * Copyright (C) 2009 Apple Inc. All rights reserved.
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| 3 | *
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| 4 | * Redistribution and use in source and binary forms, with or without
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| 5 | * modification, are permitted provided that the following conditions
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| 6 | * are met:
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| 7 | * 1. Redistributions of source code must retain the above copyright
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| 8 | * notice, this list of conditions and the following disclaimer.
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| 9 | * 2. Redistributions in binary form must reproduce the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer in the
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| 11 | * documentation and/or other materials provided with the distribution.
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| 12 | *
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| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 24 | */
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| 25 |
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| 26 | #ifndef CallFrameClosure_h
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| 27 | #define CallFrameClosure_h
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| 28 |
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| 29 | namespace JSC {
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| 30 |
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| 31 | struct CallFrameClosure {
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| 32 | CallFrame* oldCallFrame;
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| 33 | CallFrame* newCallFrame;
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| 34 | JSFunction* function;
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| 35 | CodeBlock* codeBlock;
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| 36 | JSGlobalData* globalData;
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| 37 | Register* oldEnd;
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| 38 | ScopeChainNode* scopeChain;
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| 39 | int expectedParams;
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| 40 | int providedParams;
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| 41 |
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| 42 | void setArgument(int arg, JSValuePtr value)
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| 43 | {
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| 44 | if (arg < expectedParams)
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| 45 | newCallFrame[arg - RegisterFile::CallFrameHeaderSize - expectedParams] = value;
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| 46 | else
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| 47 | newCallFrame[arg - RegisterFile::CallFrameHeaderSize - expectedParams - providedParams] = value;
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| 48 | }
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| 49 | void resetCallFrame()
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| 50 | {
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| 51 | newCallFrame->setScopeChain(scopeChain);
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| 52 | newCallFrame->setCalleeArguments(0);
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| 53 | for (int i = providedParams; i < expectedParams; ++i)
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| 54 | newCallFrame[i - RegisterFile::CallFrameHeaderSize - expectedParams] = jsUndefined();
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| 55 | }
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| 56 | };
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| 57 |
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| 58 | }
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| 59 |
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| 60 | #endif
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