Ruby 3.4.2p28 (2025-02-15 revision d2930f8e7a5db8a7337fa43370940381b420cc3e)
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Defines RBIMPL_ASSUME / RBIMPL_UNREACHABLE. More...
#include "ruby/internal/config.h"
#include "ruby/internal/cast.h"
#include "ruby/internal/compiler_since.h"
#include "ruby/internal/has/builtin.h"
#include "ruby/internal/warning_push.h"
Go to the source code of this file.
Macros | |
#define | RBIMPL_UNREACHABLE_RETURN(_) |
Wraps (or simulates) __builtin_unreachable . | |
#define | RBIMPL_ASSUME(_) |
Wraps (or simulates) __builtin_unreachable . | |
#define | RBIMPL_UNREACHABLE() |
Defines RBIMPL_ASSUME / RBIMPL_UNREACHABLE.
RBIMPL
or rbimpl
are implementation details. Don't take them as canon. They could rapidly appear then vanish. The name (path) of this header file is also an implementation detail. Do not expect it to persist at the place it is now. Developers are free to move it anywhere anytime at will. __VA_ARGS__
is always available. We assume C99 for ruby itself but we don't assume languages of extension libraries. They could be written in C++98. These macros must be defined at once because:
Definition in file assume.h.
#define RBIMPL_ASSUME | ( | _ | ) |
Wraps (or simulates) __builtin_unreachable
.
Wraps (or simulates) __assume
.
Definition at line 76 of file assume.h.
Referenced by rb_long2int_inline(), and rb_type().
#define RBIMPL_UNREACHABLE | ( | ) |
#define RBIMPL_UNREACHABLE_RETURN | ( | _ | ) |
Wraps (or simulates) __builtin_unreachable
.
Definition at line 48 of file assume.h.
Referenced by rb_class_of(), RTYPEDDATA_P(), and RTYPEDDATA_TYPE().