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author | Steve Block <steveblock@google.com> | 2011-05-13 06:44:40 -0700 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2011-05-13 06:44:40 -0700 |
commit | 08014c20784f3db5df3a89b73cce46037b77eb59 (patch) | |
tree | 47749210d31e19e6e2f64036fa8fae2ad693476f /Source/JavaScriptCore/wtf/Assertions.h | |
parent | 860220379e56aeb66424861ad602b07ee22b4055 (diff) | |
parent | 4c3661f7918f8b3f139f824efb7855bedccb4c94 (diff) | |
download | external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.zip external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.tar.gz external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.tar.bz2 |
Merge changes Ide388898,Ic49f367c,I1158a808,Iacb6ca5d,I2100dd3a,I5c1abe54,Ib0ef9902,I31dbc523,I570314b3
* changes:
Merge WebKit at r75315: Update WebKit version
Merge WebKit at r75315: Add FrameLoaderClient PageCache stubs
Merge WebKit at r75315: Stub out AXObjectCache::remove()
Merge WebKit at r75315: Fix ImageBuffer
Merge WebKit at r75315: Fix PluginData::initPlugins()
Merge WebKit at r75315: Fix conflicts
Merge WebKit at r75315: Fix Makefiles
Merge WebKit at r75315: Move Android-specific WebCore files to Source
Merge WebKit at r75315: Initial merge by git.
Diffstat (limited to 'Source/JavaScriptCore/wtf/Assertions.h')
-rw-r--r-- | Source/JavaScriptCore/wtf/Assertions.h | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/wtf/Assertions.h b/Source/JavaScriptCore/wtf/Assertions.h new file mode 100644 index 0000000..3f3af72 --- /dev/null +++ b/Source/JavaScriptCore/wtf/Assertions.h @@ -0,0 +1,336 @@ +/* + * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef WTF_Assertions_h +#define WTF_Assertions_h + +/* + no namespaces because this file has to be includable from C and Objective-C + + Note, this file uses many GCC extensions, but it should be compatible with + C, Objective C, C++, and Objective C++. + + For non-debug builds, everything is disabled by default. + Defining any of the symbols explicitly prevents this from having any effect. + + MSVC7 note: variadic macro support was added in MSVC8, so for now we disable + those macros in MSVC7. For more info, see the MSDN document on variadic + macros here: + + http://msdn2.microsoft.com/en-us/library/ms177415(VS.80).aspx +*/ + +#include "Platform.h" + +#include <stddef.h> + +#if !COMPILER(MSVC) +#include <inttypes.h> +#endif + +#if OS(SYMBIAN) +#include <e32def.h> +#include <e32debug.h> +#endif + +#if PLATFORM(BREWMP) +#include <AEEError.h> +#include <AEEdbg.h> +#endif + +#ifdef NDEBUG +/* Disable ASSERT* macros in release mode. */ +#define ASSERTIONS_DISABLED_DEFAULT 1 +#else +#define ASSERTIONS_DISABLED_DEFAULT 0 +#endif + +#if COMPILER(MSVC7_OR_LOWER) || COMPILER(WINSCW) +#define HAVE_VARIADIC_MACRO 0 +#else +#define HAVE_VARIADIC_MACRO 1 +#endif + +#ifndef ASSERT_DISABLED +#define ASSERT_DISABLED ASSERTIONS_DISABLED_DEFAULT +#endif + +#ifndef ASSERT_MSG_DISABLED +#if HAVE(VARIADIC_MACRO) +#define ASSERT_MSG_DISABLED ASSERTIONS_DISABLED_DEFAULT +#else +#define ASSERT_MSG_DISABLED 1 +#endif +#endif + +#ifndef ASSERT_ARG_DISABLED +#define ASSERT_ARG_DISABLED ASSERTIONS_DISABLED_DEFAULT +#endif + +#ifndef FATAL_DISABLED +#if HAVE(VARIADIC_MACRO) +#define FATAL_DISABLED ASSERTIONS_DISABLED_DEFAULT +#else +#define FATAL_DISABLED 1 +#endif +#endif + +#ifndef ERROR_DISABLED +#if HAVE(VARIADIC_MACRO) +#define ERROR_DISABLED ASSERTIONS_DISABLED_DEFAULT +#else +#define ERROR_DISABLED 1 +#endif +#endif + +#ifndef LOG_DISABLED +#if HAVE(VARIADIC_MACRO) +#define LOG_DISABLED ASSERTIONS_DISABLED_DEFAULT +#else +#define LOG_DISABLED 1 +#endif +#endif + +#if COMPILER(GCC) +#define WTF_PRETTY_FUNCTION __PRETTY_FUNCTION__ +#else +#define WTF_PRETTY_FUNCTION __FUNCTION__ +#endif + +/* WTF logging functions can process %@ in the format string to log a NSObject* but the printf format attribute + emits a warning when %@ is used in the format string. Until <rdar://problem/5195437> is resolved we can't include + the attribute when being used from Objective-C code in case it decides to use %@. */ +#if COMPILER(GCC) && !defined(__OBJC__) +#define WTF_ATTRIBUTE_PRINTF(formatStringArgument, extraArguments) __attribute__((__format__(printf, formatStringArgument, extraArguments))) +#else +#define WTF_ATTRIBUTE_PRINTF(formatStringArgument, extraArguments) +#endif + +/* These helper functions are always declared, but not necessarily always defined if the corresponding function is disabled. */ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { WTFLogChannelOff, WTFLogChannelOn } WTFLogChannelState; + +typedef struct { + unsigned mask; + const char *defaultName; + WTFLogChannelState state; +} WTFLogChannel; + +void WTFReportAssertionFailure(const char* file, int line, const char* function, const char* assertion); +void WTFReportAssertionFailureWithMessage(const char* file, int line, const char* function, const char* assertion, const char* format, ...) WTF_ATTRIBUTE_PRINTF(5, 6); +void WTFReportArgumentAssertionFailure(const char* file, int line, const char* function, const char* argName, const char* assertion); +void WTFReportFatalError(const char* file, int line, const char* function, const char* format, ...) WTF_ATTRIBUTE_PRINTF(4, 5); +void WTFReportError(const char* file, int line, const char* function, const char* format, ...) WTF_ATTRIBUTE_PRINTF(4, 5); +void WTFLog(WTFLogChannel* channel, const char* format, ...) WTF_ATTRIBUTE_PRINTF(2, 3); +void WTFLogVerbose(const char* file, int line, const char* function, WTFLogChannel* channel, const char* format, ...) WTF_ATTRIBUTE_PRINTF(5, 6); + +#ifdef __cplusplus +} +#endif + +/* CRASH() - Raises a fatal error resulting in program termination and triggering either the debugger or the crash reporter. + + Use CRASH() in response to known, unrecoverable errors like out-of-memory. + Macro is enabled in both debug and release mode. + To test for unknown errors and verify assumptions, use ASSERT instead, to avoid impacting performance in release builds. + + Signals are ignored by the crash reporter on OS X so we must do better. +*/ +#ifndef CRASH +#if OS(SYMBIAN) +#define CRASH() do { \ + __DEBUGGER(); \ + User::Panic(_L("Webkit CRASH"),0); \ + } while(false) +#elif PLATFORM(BREWMP) +#define CRASH() do { \ + dbg_Message("WebKit CRASH", DBG_MSG_LEVEL_FATAL, __FILE__, __LINE__); \ + *(int *)(uintptr_t)0xbbadbeef = 0; \ + ((void(*)())0)(); /* More reliable, but doesn't say BBADBEEF */ \ +} while(false) +#else +#define CRASH() do { \ + *(int *)(uintptr_t)0xbbadbeef = 0; \ + ((void(*)())0)(); /* More reliable, but doesn't say BBADBEEF */ \ +} while(false) +#endif +#endif + +/* ASSERT, ASSERT_NOT_REACHED, ASSERT_UNUSED + + These macros are compiled out of release builds. + Expressions inside them are evaluated in debug builds only. +*/ + +#if OS(WINCE) && !PLATFORM(TORCHMOBILE) +/* FIXME: We include this here only to avoid a conflict with the ASSERT macro. */ +#include <windows.h> +#undef min +#undef max +#undef ERROR +#endif + +#if OS(WINDOWS) || OS(SYMBIAN) +/* FIXME: Change to use something other than ASSERT to avoid this conflict with the underlying platform */ +#undef ASSERT +#endif + +#if PLATFORM(BREWMP) +/* FIXME: We include this here only to avoid a conflict with the COMPILE_ASSERT macro. */ +#include <AEEClassIDs.h> + +/* FIXME: Change to use something other than COMPILE_ASSERT to avoid this conflict with the underlying platform */ +#undef COMPILE_ASSERT +#endif + +#if ASSERT_DISABLED + +#define ASSERT(assertion) ((void)0) +#define ASSERT_NOT_REACHED() ((void)0) + +#if COMPILER(INTEL) && !OS(WINDOWS) || COMPILER(RVCT) +template<typename T> +inline void assertUnused(T& x) { (void)x; } +#define ASSERT_UNUSED(variable, assertion) (assertUnused(variable)) +#else +#define ASSERT_UNUSED(variable, assertion) ((void)variable) +#endif + +#else + +#define ASSERT(assertion) do \ + if (!(assertion)) { \ + WTFReportAssertionFailure(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, #assertion); \ + CRASH(); \ + } \ +while (0) + +#define ASSERT_NOT_REACHED() do { \ + WTFReportAssertionFailure(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, 0); \ + CRASH(); \ +} while (0) + +#define ASSERT_UNUSED(variable, assertion) ASSERT(assertion) + +#endif + +/* ASSERT_WITH_MESSAGE */ + +#if COMPILER(MSVC7_OR_LOWER) +#define ASSERT_WITH_MESSAGE(assertion) ((void)0) +#elif COMPILER(WINSCW) +#define ASSERT_WITH_MESSAGE(assertion, arg...) ((void)0) +#elif ASSERT_MSG_DISABLED +#define ASSERT_WITH_MESSAGE(assertion, ...) ((void)0) +#else +#define ASSERT_WITH_MESSAGE(assertion, ...) do \ + if (!(assertion)) { \ + WTFReportAssertionFailureWithMessage(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, #assertion, __VA_ARGS__); \ + CRASH(); \ + } \ +while (0) +#endif + + +/* ASSERT_ARG */ + +#if ASSERT_ARG_DISABLED + +#define ASSERT_ARG(argName, assertion) ((void)0) + +#else + +#define ASSERT_ARG(argName, assertion) do \ + if (!(assertion)) { \ + WTFReportArgumentAssertionFailure(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, #argName, #assertion); \ + CRASH(); \ + } \ +while (0) + +#endif + +/* COMPILE_ASSERT */ +#ifndef COMPILE_ASSERT +#define COMPILE_ASSERT(exp, name) typedef int dummy##name [(exp) ? 1 : -1] +#endif + +/* FATAL */ + +#if COMPILER(MSVC7_OR_LOWER) +#define FATAL() ((void)0) +#elif COMPILER(WINSCW) +#define FATAL(arg...) ((void)0) +#elif FATAL_DISABLED +#define FATAL(...) ((void)0) +#else +#define FATAL(...) do { \ + WTFReportFatalError(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, __VA_ARGS__); \ + CRASH(); \ +} while (0) +#endif + +/* LOG_ERROR */ + +#if COMPILER(MSVC7_OR_LOWER) +#define LOG_ERROR() ((void)0) +#elif COMPILER(WINSCW) +#define LOG_ERROR(arg...) ((void)0) +#elif ERROR_DISABLED +#define LOG_ERROR(...) ((void)0) +#else +#define LOG_ERROR(...) WTFReportError(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, __VA_ARGS__) +#endif + +/* LOG */ + +#if COMPILER(MSVC7_OR_LOWER) +#define LOG() ((void)0) +#elif COMPILER(WINSCW) +#define LOG(arg...) ((void)0) +#elif LOG_DISABLED +#define LOG(channel, ...) ((void)0) +#else +#define LOG(channel, ...) WTFLog(&JOIN_LOG_CHANNEL_WITH_PREFIX(LOG_CHANNEL_PREFIX, channel), __VA_ARGS__) +#define JOIN_LOG_CHANNEL_WITH_PREFIX(prefix, channel) JOIN_LOG_CHANNEL_WITH_PREFIX_LEVEL_2(prefix, channel) +#define JOIN_LOG_CHANNEL_WITH_PREFIX_LEVEL_2(prefix, channel) prefix ## channel +#endif + +/* LOG_VERBOSE */ + +#if COMPILER(MSVC7_OR_LOWER) +#define LOG_VERBOSE(channel) ((void)0) +#elif COMPILER(WINSCW) +#define LOG_VERBOSE(channel, arg...) ((void)0) +#elif LOG_DISABLED +#define LOG_VERBOSE(channel, ...) ((void)0) +#else +#define LOG_VERBOSE(channel, ...) WTFLogVerbose(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, &JOIN_LOG_CHANNEL_WITH_PREFIX(LOG_CHANNEL_PREFIX, channel), __VA_ARGS__) +#endif + +#endif /* WTF_Assertions_h */ |