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Bug 928636 - Whitespace changes. r=Waldo

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Bobby Holley 2013-11-25 09:37:16 -08:00
parent 8475a010d7
commit 75c5db5a1c
1 changed files with 41 additions and 40 deletions
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81
mfbt/Assertions.h
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@ -278,46 +278,47 @@ __declspec(noreturn) __inline void MOZ_NoReturn() {}
* *only* during debugging, not "in the field". If you want the latter, use
* MOZ_RELEASE_ASSERT, which applies to non-debug builds as well.
*/
/* First the single-argument form. */
# define MOZ_ASSERT_HELPER1(expr) \
do { \
if (MOZ_UNLIKELY(!(expr))) { \
MOZ_ReportAssertionFailure(#expr, __FILE__, __LINE__); \
MOZ_REALLY_CRASH(); \
} \
} while (0)
/* Now the two-argument form. */
# define MOZ_ASSERT_HELPER2(expr, explain) \
do { \
if (MOZ_UNLIKELY(!(expr))) { \
MOZ_ReportAssertionFailure(#expr " (" explain ")", __FILE__, __LINE__); \
MOZ_REALLY_CRASH(); \
} \
} while (0)
/* And now, helper macrology up the wazoo. */
/*
* Count the number of arguments passed to MOZ_ASSERT, very carefully
* tiptoeing around an MSVC bug where it improperly expands __VA_ARGS__ as a
* single token in argument lists. See these URLs for details:
*
* http://connect.microsoft.com/VisualStudio/feedback/details/380090/variadic-macro-replacement
* http://cplusplus.co.il/2010/07/17/variadic-macro-to-count-number-of-arguments/#comment-644
*/
# define MOZ_COUNT_ASSERT_ARGS_IMPL2(_1, _2, count, ...) \
count
# define MOZ_COUNT_ASSERT_ARGS_IMPL(args) \
MOZ_COUNT_ASSERT_ARGS_IMPL2 args
# define MOZ_COUNT_ASSERT_ARGS(...) \
MOZ_COUNT_ASSERT_ARGS_IMPL((__VA_ARGS__, 2, 1, 0))
/* Pick the right helper macro to invoke. */
# define MOZ_ASSERT_CHOOSE_HELPER2(count) MOZ_ASSERT_HELPER##count
# define MOZ_ASSERT_CHOOSE_HELPER1(count) MOZ_ASSERT_CHOOSE_HELPER2(count)
# define MOZ_ASSERT_CHOOSE_HELPER(count) MOZ_ASSERT_CHOOSE_HELPER1(count)
/* The actual macros. */
# define MOZ_ASSERT_GLUE(x, y) x y
# define MOZ_RELEASE_ASSERT(...) \
MOZ_ASSERT_GLUE(MOZ_ASSERT_CHOOSE_HELPER(MOZ_COUNT_ASSERT_ARGS(__VA_ARGS__)), \
(__VA_ARGS__))
/* First the single-argument form. */
#define MOZ_ASSERT_HELPER1(expr) \
do { \
if (MOZ_UNLIKELY(!(expr))) { \
MOZ_ReportAssertionFailure(#expr, __FILE__, __LINE__); \
MOZ_REALLY_CRASH(); \
} \
} while (0)
/* Now the two-argument form. */
#define MOZ_ASSERT_HELPER2(expr, explain) \
do { \
if (MOZ_UNLIKELY(!(expr))) { \
MOZ_ReportAssertionFailure(#expr " (" explain ")", __FILE__, __LINE__); \
MOZ_REALLY_CRASH(); \
} \
} while (0)
/* And now, helper macrology up the wazoo. */
/*
* Count the number of arguments passed to MOZ_ASSERT, very carefully
* tiptoeing around an MSVC bug where it improperly expands __VA_ARGS__ as a
* single token in argument lists. See these URLs for details:
*
* http://connect.microsoft.com/VisualStudio/feedback/details/380090/variadic-macro-replacement
* http://cplusplus.co.il/2010/07/17/variadic-macro-to-count-number-of-arguments/#comment-644
*/
#define MOZ_COUNT_ASSERT_ARGS_IMPL2(_1, _2, count, ...) \
count
#define MOZ_COUNT_ASSERT_ARGS_IMPL(args) \
MOZ_COUNT_ASSERT_ARGS_IMPL2 args
#define MOZ_COUNT_ASSERT_ARGS(...) \
MOZ_COUNT_ASSERT_ARGS_IMPL((__VA_ARGS__, 2, 1, 0))
/* Pick the right helper macro to invoke. */
#define MOZ_ASSERT_CHOOSE_HELPER2(count) MOZ_ASSERT_HELPER##count
#define MOZ_ASSERT_CHOOSE_HELPER1(count) MOZ_ASSERT_CHOOSE_HELPER2(count)
#define MOZ_ASSERT_CHOOSE_HELPER(count) MOZ_ASSERT_CHOOSE_HELPER1(count)
/* The actual macros. */
#define MOZ_ASSERT_GLUE(x, y) x y
#define MOZ_RELEASE_ASSERT(...) \
MOZ_ASSERT_GLUE(MOZ_ASSERT_CHOOSE_HELPER(MOZ_COUNT_ASSERT_ARGS(__VA_ARGS__)), \
(__VA_ARGS__))
#ifdef DEBUG
# define MOZ_ASSERT(...) MOZ_RELEASE_ASSERT(__VA_ARGS__)
#else