Ruby: include/ruby/internal/has/attribute.h Source File

Ruby 3.3.7p123 (2025-01-15 revision be31f993d7fa0219d85f7b3c694d454da4ecc10b)

attribute.h
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1#ifndef RBIMPL_HAS_ATTRIBUTE_H /*-*-C++-*-vi:se ft=cpp:*/
2#define RBIMPL_HAS_ATTRIBUTE_H
23#include "ruby/internal/config.h"
24#include "ruby/internal/compiler_since.h"
25
26#if defined(__has_attribute)
27# if __has_attribute(pure) || RBIMPL_COMPILER_IS(GCC)
28# /* FreeBSD's <sys/cdefs.h> defines its own *broken* version of
29# * __has_attribute. Cygwin copied that content to be a victim of the
30# * broken-ness. We don't take them into account. */
31# define RBIMPL_HAVE___HAS_ATTRIBUTE 1
32# endif
33#endif
34
36#if defined(RBIMPL_HAVE___HAS_ATTRIBUTE)
37# define RBIMPL_HAS_ATTRIBUTE(_) __has_attribute(_)
38
39#elif RBIMPL_COMPILER_IS(GCC)
40# /* GCC <= 4 lack __has_attribute predefined macro, while have attributes
41# * themselves. We can simulate the macro like the following: */
42# define RBIMPL_HAS_ATTRIBUTE(_) (RBIMPL_HAS_ATTRIBUTE_ ## _)
43# define RBIMPL_HAS_ATTRIBUTE_aligned RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
44# define RBIMPL_HAS_ATTRIBUTE_alloc_size RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
45# define RBIMPL_HAS_ATTRIBUTE_artificial RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
46# define RBIMPL_HAS_ATTRIBUTE_always_inline RBIMPL_COMPILER_SINCE(GCC, 3, 1, 0)
47# define RBIMPL_HAS_ATTRIBUTE_cdecl RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
48# define RBIMPL_HAS_ATTRIBUTE_cold RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
49# define RBIMPL_HAS_ATTRIBUTE_const RBIMPL_COMPILER_SINCE(GCC, 2, 6, 0)
50# define RBIMPL_HAS_ATTRIBUTE_deprecated RBIMPL_COMPILER_SINCE(GCC, 3, 1, 0)
51# define RBIMPL_HAS_ATTRIBUTE_dllexport RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
52# define RBIMPL_HAS_ATTRIBUTE_dllimport RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
53# define RBIMPL_HAS_ATTRIBUTE_error RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
54# define RBIMPL_HAS_ATTRIBUTE_format RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
55# define RBIMPL_HAS_ATTRIBUTE_hot RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
56# define RBIMPL_HAS_ATTRIBUTE_leaf RBIMPL_COMPILER_SINCE(GCC, 4, 6, 0)
57# define RBIMPL_HAS_ATTRIBUTE_malloc RBIMPL_COMPILER_SINCE(GCC, 3, 0, 0)
58# define RBIMPL_HAS_ATTRIBUTE_no_address_safety_analysis RBIMPL_COMPILER_SINCE(GCC, 4, 8, 0)
59# define RBIMPL_HAS_ATTRIBUTE_no_sanitize_address RBIMPL_COMPILER_SINCE(GCC, 4, 8, 0)
60# define RBIMPL_HAS_ATTRIBUTE_no_sanitize_undefined RBIMPL_COMPILER_SINCE(GCC, 4, 9, 0)
61# define RBIMPL_HAS_ATTRIBUTE_noinline RBIMPL_COMPILER_SINCE(GCC, 3, 1, 0)
62# define RBIMPL_HAS_ATTRIBUTE_nonnull RBIMPL_COMPILER_SINCE(GCC, 3, 3, 0)
63# define RBIMPL_HAS_ATTRIBUTE_noreturn RBIMPL_COMPILER_SINCE(GCC, 2, 5, 0)
64# define RBIMPL_HAS_ATTRIBUTE_nothrow RBIMPL_COMPILER_SINCE(GCC, 3, 3, 0)
65# define RBIMPL_HAS_ATTRIBUTE_pure RBIMPL_COMPILER_SINCE(GCC, 2,96, 0)
66# define RBIMPL_HAS_ATTRIBUTE_returns_nonnull RBIMPL_COMPILER_SINCE(GCC, 4, 9, 0)
67# define RBIMPL_HAS_ATTRIBUTE_returns_twice RBIMPL_COMPILER_SINCE(GCC, 4, 1, 0)
68# define RBIMPL_HAS_ATTRIBUTE_stdcall RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
69# define RBIMPL_HAS_ATTRIBUTE_unused RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
70# define RBIMPL_HAS_ATTRIBUTE_visibility RBIMPL_COMPILER_SINCE(GCC, 3, 3, 0)
71# define RBIMPL_HAS_ATTRIBUTE_warn_unused_result RBIMPL_COMPILER_SINCE(GCC, 3, 4, 0)
72# define RBIMPL_HAS_ATTRIBUTE_warning RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
73# define RBIMPL_HAS_ATTRIBUTE_weak RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
74# /* Note that "0, 0, 0" might be inaccurate. */
75
76#elif RBIMPL_COMPILER_IS(SunPro)
77# /* Oracle Solaris Studio 12.4 (cc version 5.11) introduced __has_attribute.
78# * Before that, following attributes were available. */
79# /* See https://docs.oracle.com/cd/F24633_01/index.html */
80# define RBIMPL_HAS_ATTRIBUTE(_) (RBIMPL_HAS_ATTRIBUTE_ ## _)
81# define RBIMPL_HAS_ATTRIBUTE_alias RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
82# define RBIMPL_HAS_ATTRIBUTE_aligned RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
83# define RBIMPL_HAS_ATTRIBUTE_always_inline RBIMPL_COMPILER_SINCE(SunPro, 5, 10, 0)
84# define RBIMPL_HAS_ATTRIBUTE_const RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
85# define RBIMPL_HAS_ATTRIBUTE_constructor RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
86# define RBIMPL_HAS_ATTRIBUTE_destructor RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
87# define RBIMPL_HAS_ATTRIBUTE_malloc RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
88# define RBIMPL_HAS_ATTRIBUTE_noinline RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
89# define RBIMPL_HAS_ATTRIBUTE_noreturn RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
90# define RBIMPL_HAS_ATTRIBUTE_packed RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
91# define RBIMPL_HAS_ATTRIBUTE_pure RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
92# define RBIMPL_HAS_ATTRIBUTE_returns_twice RBIMPL_COMPILER_SINCE(SunPro, 5, 10, 0)
93# define RBIMPL_HAS_ATTRIBUTE_vector_size RBIMPL_COMPILER_SINCE(SunPro, 5, 10, 0)
94# define RBIMPL_HAS_ATTRIBUTE_visibility RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
95# define RBIMPL_HAS_ATTRIBUTE_weak RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
96
97#elif defined (_MSC_VER)
98# define RBIMPL_HAS_ATTRIBUTE(_) 0
99# /* Fallback below doesn't work: see win32/Makefile.sub */
100
101#else
102# /* Take config.h definition when available. */
103# define RBIMPL_HAS_ATTRIBUTE(_) ((RBIMPL_HAS_ATTRIBUTE_ ## _)+0)
104# ifdef ALWAYS_INLINE
105# define RBIMPL_HAS_ATTRIBUTE_always_inline 1
106# endif
107# ifdef FUNC_CDECL
108# define RBIMPL_HAS_ATTRIBUTE_cdecl 1
109# endif
110# ifdef CONSTFUNC
111# define RBIMPL_HAS_ATTRIBUTE_const 1
112# endif
113# ifdef DEPRECATED
114# define RBIMPL_HAS_ATTRIBUTE_deprecated 1
115# endif
116# ifdef ERRORFUNC
117# define RBIMPL_HAS_ATTRIBUTE_error 1
118# endif
119# ifdef FUNC_FASTCALL
120# define RBIMPL_HAS_ATTRIBUTE_fastcall 1
121# endif
122# ifdef PUREFUNC
123# define RBIMPL_HAS_ATTRIBUTE_pure 1
124# endif
125# ifdef NO_ADDRESS_SAFETY_ANALYSIS
126# define RBIMPL_HAS_ATTRIBUTE_no_address_safety_analysis 1
127# endif
128# ifdef NO_SANITIZE
129# define RBIMPL_HAS_ATTRIBUTE_no_sanitize 1
130# endif
131# ifdef NO_SANITIZE_ADDRESS
132# define RBIMPL_HAS_ATTRIBUTE_no_sanitize_address 1
133# endif
134# ifdef NOINLINE
135# define RBIMPL_HAS_ATTRIBUTE_noinline 1
136# endif
137# ifdef RBIMPL_FUNC_NONNULL
138# define RBIMPL_HAS_ATTRIBUTE_nonnull 1
139# endif
140# ifdef NORETURN
141# define RBIMPL_HAS_ATTRIBUTE_noreturn 1
142# endif
143# ifdef FUNC_OPTIMIZED
144# define RBIMPL_HAS_ATTRIBUTE_optimize 1
145# endif
146# ifdef FUNC_STDCALL
147# define RBIMPL_HAS_ATTRIBUTE_stdcall 1
148# endif
149# ifdef MAYBE_UNUSED
150# define RBIMPL_HAS_ATTRIBUTE_unused 1
151# endif
152# ifdef WARN_UNUSED_RESULT
153# define RBIMPL_HAS_ATTRIBUTE_warn_unused_result 1
154# endif
155# ifdef WARNINGFUNC
156# define RBIMPL_HAS_ATTRIBUTE_warning 1
157# endif
158# ifdef WEAK
159# define RBIMPL_HAS_ATTRIBUTE_weak 1
160# endif
161#endif
162
163#endif /* RBIMPL_HAS_ATTRIBUTE_H */
compiler_since.h
Defines RBIMPL_COMPILER_SINCE.