mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
92 lines
3.5 KiB
C++
92 lines
3.5 KiB
C++
/** \noop-*-C++-*-vi:ft=cpp
|
|
* @file
|
|
* @author Ruby developers <ruby-core@ruby-lang.org>
|
|
* @copyright This file is a part of the programming language Ruby.
|
|
* Permission is hereby granted, to either redistribute and/or
|
|
* modify this file, provided that the conditions mentioned in the
|
|
* file COPYING are met. Consult the file for details.
|
|
* @warning Symbols prefixed with either `RUBY3` or `ruby3` 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.
|
|
* @note To ruby-core: remember that this header can be possibly
|
|
* recursively included from extension libraries written in C++.
|
|
* Do not expect for instance `__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.
|
|
* @brief Tewaking visibility of C variables/functions.
|
|
*/
|
|
#ifndef RUBY3_DLLEXPORT_H
|
|
#define RUBY3_DLLEXPORT_H
|
|
#include "ruby/3/config.h"
|
|
#include "ruby/3/compiler_is.h"
|
|
|
|
/* For MinGW, we need __declspec(dllimport) for RUBY_EXTERN on MJIT.
|
|
mswin's RUBY_EXTERN already has that. See also: win32/Makefile.sub */
|
|
#undef RUBY_EXTERN
|
|
#if defined(MJIT_HEADER) && defined(_WIN32)
|
|
# define RUBY_EXTERN extern __declspec(dllimport)
|
|
#elif defined(RUBY_EXPORT)
|
|
# define RUBY_EXTERN extern
|
|
#elif defined(_WIN32)
|
|
# define RUBY_EXTERN extern __declspec(dllimport)
|
|
#else
|
|
# define RUBY_EXTERN extern
|
|
#endif
|
|
|
|
#ifndef RUBY_SYMBOL_EXPORT_BEGIN
|
|
# define RUBY_SYMBOL_EXPORT_BEGIN /* begin */
|
|
#endif
|
|
|
|
#ifndef RUBY_SYMBOL_EXPORT_END
|
|
# define RUBY_SYMBOL_EXPORT_END /* end */
|
|
#endif
|
|
|
|
#ifndef RUBY_FUNC_EXPORTED
|
|
# define RUBY_FUNC_EXPORTED /* void */
|
|
#endif
|
|
|
|
/* These macros are used for functions which are exported only for MJIT
|
|
and NOT ensured to be exported in future versions. */
|
|
|
|
#if ! defined(MJIT_HEADER)
|
|
# define MJIT_FUNC_EXPORTED RUBY_FUNC_EXPORTED
|
|
#elif ! RUBY3_COMPILER_IS(MSVC)
|
|
# define MJIT_FUNC_EXPORTED RUBY_FUNC_EXPORTED
|
|
#else
|
|
# define MJIT_FUNC_EXPORTED static
|
|
#endif
|
|
|
|
#define MJIT_SYMBOL_EXPORT_BEGIN RUBY_SYMBOL_EXPORT_BEGIN
|
|
#define MJIT_SYMBOL_EXPORT_END RUBY_SYMBOL_EXPORT_END
|
|
|
|
/* On mswin, MJIT header transformation can't be used since cl.exe can't output
|
|
preprocessed output preserving macros. So this `MJIT_STATIC` is needed
|
|
to force non-static function to static on MJIT header to avoid symbol conflict. */
|
|
#ifdef MJIT_HEADER
|
|
# define MJIT_STATIC static
|
|
#else
|
|
# define MJIT_STATIC
|
|
#endif
|
|
|
|
/** Shortcut macro equivalent to `RUBY_SYMBOL_EXPORT_BEGIN extern "C" {`.
|
|
* \@shyouhei finds it handy. */
|
|
#if defined(__DOXYGEN__)
|
|
# define RUBY3_SYMBOL_EXPORT_BEGIN() /* void */
|
|
#elif defined(__cplusplus)
|
|
# define RUBY3_SYMBOL_EXPORT_BEGIN() RUBY_SYMBOL_EXPORT_BEGIN extern "C" {
|
|
#else
|
|
# define RUBY3_SYMBOL_EXPORT_BEGIN() RUBY_SYMBOL_EXPORT_BEGIN
|
|
#endif
|
|
|
|
/** Counterpart of #RUBY3_SYMBOL_EXPORT_BEGIN */
|
|
#if defined(__DOXYGEN__)
|
|
# define RUBY3_SYMBOL_EXPORT_END() /* void */
|
|
#elif defined(__cplusplus)
|
|
# define RUBY3_SYMBOL_EXPORT_END() } RUBY_SYMBOL_EXPORT_END
|
|
#else
|
|
# define RUBY3_SYMBOL_EXPORT_END() RUBY_SYMBOL_EXPORT_END
|
|
#endif
|
|
#endif /* RUBY3_DLLEXPORT_H */
|