source: webkit/trunk/JavaScriptCore/VM/ExceptionHelpers.h@ 34979

Last change on this file since 34979 was 34842, checked in by [email protected], 17 years ago

Bug 18626: SQUIRRELFISH: support the "slow script" dialog <​https://bugs.webkit.org/show_bug.cgi?id=18626>
<rdar://problem/5973931> Slow script dialog needs to be reimplemented for squirrelfish

Reviewed by Sam

Adds support for the slow script dialog in squirrelfish. This requires the addition
of three new op codes, op_loop, op_loop_if_true, and op_loop_if_less which have the
same behaviour as their simple jump equivalents but have an additional time out check.

Additional assertions were added to other jump instructions to prevent accidentally
creating loops with jump types that do not support time out checks.

Sunspider does not report a regression, however this appears very sensitive to code
layout and hardware, so i would expect up to a 1% regression on other systems.

Part of this required moving the old timeout logic from JSGlobalObject and into Machine
which is the cause of a number of the larger diff blocks.
File size: 2.1 KB
Line 
1/*
2 * Copyright (C) 2008 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 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef ExceptionHelpers_h
30#define ExceptionHelpers_h
31
32#include "JSObject.h"
33
34namespace KJS {
35
36 class Node;
37
38 JSValue* createInterruptedExecutionException(ExecState* exec);
39 JSValue* createStackOverflowError(ExecState*);
40 JSValue* createUndefinedVariableError(ExecState*, const Identifier&);
41 JSValue* createInvalidParamError(ExecState*, const char* op, JSValue*);
42 JSValue* createNotAConstructorError(ExecState*, JSValue*, Node* expr);
43 JSValue* createNotAFunctionError(ExecState*, JSValue*, Node* expr);
44
45} // namespace KJS
46
47#endif // ExceptionHelpers_h
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