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| author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2024-02-08 11:41:26 +0900 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2024-02-08 18:08:42 +0900 |
| commit | 34581410f20e2d2252b9da19a803bf5cc1ae23e1 (patch) | |
| tree | b7060db42ba7d81c9d87941c15b05a4cdff3fb33 /include | |
| parent | f3cc1f9a703ab56f5601d6c7b6a964333b668c17 (diff) | |
| download | ruby-34581410f20e2d2252b9da19a803bf5cc1ae23e1.tar.gz | |
Extract `RBIMPL_VA_OPT_ARGS`
Similar to splat argument in Ruby, which be expanded to `__VA_ARGS__`
with a leading comma if any arguments given, otherwise empty.
Diffstat (limited to 'include')
| -rw-r--r-- | include/ruby/assert.h | 42 |
1 files changed, 20 insertions, 22 deletions
diff --git a/include/ruby/assert.h b/include/ruby/assert.h index ebeae3e7be..ceab090427 100644 --- a/include/ruby/assert.h +++ b/include/ruby/assert.h @@ -159,13 +159,19 @@ RBIMPL_SYMBOL_EXPORT_END() * cases. */ RBIMPL_WARNING_IGNORED(-Wgnu-zero-variadic-macro-arguments) # endif +# define RBIMPL_VA_OPT_ARGS(...) __VA_OPT__(,) __VA_ARGS__ + # define RUBY_ASSERT_FAIL(mesg, ...) \ rb_assert_failure##__VA_OPT__(_detail)( \ - __FILE__, __LINE__, RBIMPL_ASSERT_FUNC, mesg __VA_OPT__(,) __VA_ARGS__) + __FILE__, __LINE__, RBIMPL_ASSERT_FUNC, mesg RBIMPL_VA_OPT_ARGS(__VA_ARGS__)) #elif !defined(__cplusplus) +# define RBIMPL_VA_OPT_ARGS(...) + # define RUBY_ASSERT_FAIL(mesg, ...) \ rb_assert_failure(__FILE__, __LINE__, RBIMPL_ASSERT_FUNC, mesg) #else +# undef RBIMPL_VA_OPT_ARGS + # define RUBY_ASSERT_FAIL(mesg) \ rb_assert_failure(__FILE__, __LINE__, RBIMPL_ASSERT_FUNC, mesg) #endif @@ -176,7 +182,7 @@ RBIMPL_WARNING_IGNORED(-Wgnu-zero-variadic-macro-arguments) * @param expr What supposedly evaluates to true. * @param mesg The message to display on failure. */ -#if defined(HAVE___VA_OPT__) || !defined(__cplusplus) +#if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT_MESG(expr, ...) \ (RB_LIKELY(expr) ? RBIMPL_ASSERT_NOTHING : RUBY_ASSERT_FAIL(__VA_ARGS__)) #else @@ -189,11 +195,9 @@ RBIMPL_WARNING_IGNORED(-Wgnu-zero-variadic-macro-arguments) * * @copydetails #RUBY_ASSERT */ -#if defined(HAVE___VA_OPT__) +#if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT_ALWAYS(expr, ...) \ - RUBY_ASSERT_MESG(expr, #expr __VA_OPT__(,) __VA_ARGS__) -#elif !defined(__cplusplus) -# define RUBY_ASSERT_ALWAYS(expr, ...) RUBY_ASSERT_MESG(expr, #expr) + RUBY_ASSERT_MESG(expr, #expr RBIMPL_VA_OPT_ARGS(__VA_ARGS__)) #else # define RUBY_ASSERT_ALWAYS(expr) RUBY_ASSERT_MESG((expr), #expr) #endif @@ -204,16 +208,14 @@ RBIMPL_WARNING_IGNORED(-Wgnu-zero-variadic-macro-arguments) * @param expr What supposedly evaluates to true. */ #if RUBY_DEBUG -# if defined(HAVE___VA_OPT__) +# if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT(expr, ...) \ - RUBY_ASSERT_MESG((expr), #expr __VA_OPT__(,) __VA_ARGS__) -# elif !defined(__cplusplus) -# define RUBY_ASSERT(expr, ...) RUBY_ASSERT_MESG((expr), #expr) + RUBY_ASSERT_MESG((expr), #expr RBIMPL_VA_OPT_ARGS(__VA_ARGS__)) # else # define RUBY_ASSERT(expr) RUBY_ASSERT_MESG((expr), #expr) # endif #else -# if defined(HAVE___VA_OPT__) || !defined(__cplusplus) +# if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT(/* expr, */...) RBIMPL_ASSERT_NOTHING # else # define RUBY_ASSERT(expr) RBIMPL_ASSERT_NOTHING @@ -230,17 +232,15 @@ RBIMPL_WARNING_IGNORED(-Wgnu-zero-variadic-macro-arguments) /* Currently `RUBY_DEBUG == ! defined(NDEBUG)` is always true. There is no * difference any longer between this one and `RUBY_ASSERT`. */ #if defined(NDEBUG) -# if defined(HAVE___VA_OPT__) || !defined(__cplusplus) +# if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT_NDEBUG(/* expr, */...) RBIMPL_ASSERT_NOTHING # else # define RUBY_ASSERT_NDEBUG(expr) RBIMPL_ASSERT_NOTHING # endif #else -# if defined(HAVE___VA_OPT__) +# if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT_NDEBUG(expr, ...) \ - RUBY_ASSERT_MESG((expr), #expr __VA_OPT__(,) __VA_ARGS__) -# elif !defined(__cplusplus) -# define RUBY_ASSERT_NDEBUG(expr, ...) RUBY_ASSERT_MESG((expr), #expr) + RUBY_ASSERT_MESG((expr), #expr RBIMPL_VA_OPT_ARGS(__VA_ARGS__)) # else # define RUBY_ASSERT_NDEBUG(expr) RUBY_ASSERT_MESG((expr), #expr) # endif @@ -251,14 +251,14 @@ RBIMPL_WARNING_IGNORED(-Wgnu-zero-variadic-macro-arguments) * @param mesg The message to display on failure. */ #if RUBY_DEBUG -# if defined(HAVE___VA_OPT__) || !defined(__cplusplus) +# if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT_MESG_WHEN(cond, /* expr, */...) \ RUBY_ASSERT_MESG(__VA_ARGS__) # else # define RUBY_ASSERT_MESG_WHEN(cond, expr, mesg) RUBY_ASSERT_MESG((expr), (mesg)) # endif #else -# if defined(HAVE___VA_OPT__) || !defined(__cplusplus) +# if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT_MESG_WHEN(cond, expr, ...) \ ((cond) ? RUBY_ASSERT_MESG((expr), __VA_ARGS__) : RBIMPL_ASSERT_NOTHING) # else @@ -274,11 +274,9 @@ RBIMPL_WARNING_IGNORED(-Wgnu-zero-variadic-macro-arguments) * @param cond Extra condition that shall hold for assertion to take effect. * @param expr What supposedly evaluates to true. */ -#if defined(HAVE___VA_OPT__) +#if defined(RBIMPL_VA_OPT_ARGS) # define RUBY_ASSERT_WHEN(cond, expr, ...) \ - RUBY_ASSERT_MESG_WHEN(cond, expr, #expr __VA_OPT__(,) __VA_ARGS__) -#elif !defined(__cplusplus) -# define RUBY_ASSERT_WHEN(cond, expr, ...) RUBY_ASSERT_MESG_WHEN(cond, expr, #expr) + RUBY_ASSERT_MESG_WHEN(cond, expr, #expr RBIMPL_VA_OPT_ARGS(__VA_ARGS__)) #else # define RUBY_ASSERT_WHEN(cond, expr) RUBY_ASSERT_MESG_WHEN((cond), (expr), #expr) #endif |