1/* 2 * Copyright (C) 2011 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef ExceptionCodePlaceholder_h 32#define ExceptionCodePlaceholder_h 33 34#include <wtf/Assertions.h> 35#include <wtf/Noncopyable.h> 36 37namespace WebCore { 38 39typedef int ExceptionCode; 40 41class ExceptionCodePlaceholder { 42 WTF_MAKE_NONCOPYABLE(ExceptionCodePlaceholder); 43public: 44 ExceptionCodePlaceholder() { } 45 explicit ExceptionCodePlaceholder(ExceptionCode); 46 47 operator ExceptionCode& () const { return m_code; } 48 49protected: 50 mutable ExceptionCode m_code; 51}; 52 53inline ExceptionCodePlaceholder::ExceptionCodePlaceholder(ExceptionCode code) 54 : m_code(code) 55{ 56} 57 58class IgnorableExceptionCode : public ExceptionCodePlaceholder { 59}; 60 61#define IGNORE_EXCEPTION ::WebCore::IgnorableExceptionCode() 62 63#if ASSERT_DISABLED 64 65#define ASSERT_NO_EXCEPTION ::WebCore::IgnorableExceptionCode() 66 67#else 68 69class NoExceptionAssertionChecker : public ExceptionCodePlaceholder { 70public: 71 NoExceptionAssertionChecker(const char* file, int line); 72 ~NoExceptionAssertionChecker(); 73 74private: 75 static const ExceptionCode defaultExceptionCode = 0xaaaaaaaa; 76 const char* m_file; 77 int m_line; 78}; 79 80#define ASSERT_NO_EXCEPTION ::WebCore::NoExceptionAssertionChecker(__FILE__, __LINE__) 81 82#endif 83 84} 85 86#endif 87