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ruby--ruby/include/ruby/backward/cxxanyargs.hpp
卜部昌平 cac1e88d75 include/ruby/backward/cxxanyargs.hpp: suppress doxygen warning 
rb_cFiber is not visible from extension libraries, hence intentionally
not documented. [ci skip]
2021-09-10 20:00:06 +09:00

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#ifndef RUBY_BACKWARD_CXXANYARGS_HPP //-*-C++-*-vi:ft=cpp
#define RUBY_BACKWARD_CXXANYARGS_HPP
/// @file
/// @author @shyouhei
/// @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.
/// @note DO NOT MODERNIZE THIS FILE! As the file name implies it is
/// meant to be a backwards compatibility shim. Please stick to
/// C++ 98 and never use newer features, like `constexpr`.
/// @brief Provides old prototypes for C++ programs.
#include "ruby/internal/config.h"
#include "ruby/internal/intern/class.h"
#include "ruby/internal/intern/cont.h"
#include "ruby/internal/intern/hash.h"
#include "ruby/internal/intern/proc.h"
#include "ruby/internal/intern/thread.h"
#include "ruby/internal/intern/variable.h"
#include "ruby/internal/intern/vm.h"
#include "ruby/internal/iterator.h"
#include "ruby/internal/method.h"
#include "ruby/internal/value.h"
#include "ruby/internal/variable.h"
#include "ruby/backward/2/stdarg.h"
#include "ruby/st.h"
extern "C++" {
#ifdef HAVE_NULLPTR
#include <cstddef>
#endif
/// @brief The main namespace.
/// @note The name "ruby" might already be taken, but that must not be a
/// problem because namespaces are allowed to reopen.
namespace ruby {
/// Backwards compatibility layer.
namespace backward {
/// Provides ANYARGS deprecation warnings. In C, ANYARGS means there is no
/// function prototype. Literally anything, even including nothing, can be a
/// valid ANYARGS. So passing a correctly prototyped function pointer to an
/// ANYARGS-ed function parameter is valid, at the same time passing an
/// ANYARGS-ed function pointer to a granular typed function parameter is also
/// valid. However on the other hand in C++, ANYARGS doesn't actually mean any
/// number of arguments. C++'s ANYARGS means _variadic_ number of arguments.
/// This is incompatible with ordinal, correct function prototypes.
///
/// Luckily, function prototypes being distinct each other means they can be
/// overloaded. We can provide a compatibility layer for older Ruby APIs which
/// used to have ANYARGS. This namespace includes such attempts.
namespace cxxanyargs {
typedef VALUE type(ANYARGS); ///< ANYARGS-ed function type.
typedef void void_type(ANYARGS); ///< ANYARGS-ed function type, void variant.
typedef int int_type(ANYARGS); ///< ANYARGS-ed function type, int variant.
typedef VALUE onearg_type(VALUE); ///< Single-argumented function type.
/// @name Hooking global variables
/// @{
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Define a function-backended global variable.
/// @param[in] q Name of the variable.
/// @param[in] w Getter function.
/// @param[in] e Setter function.
/// @note Both functions can be nullptr.
/// @see rb_define_hooked_variable()
/// @deprecated Use glanular typed overload instead.
inline void
rb_define_virtual_variable(const char *q, type *w, void_type *e)
{
rb_gvar_getter_t *r = reinterpret_cast<rb_gvar_getter_t*>(w);
rb_gvar_setter_t *t = reinterpret_cast<rb_gvar_setter_t*>(e);
::rb_define_virtual_variable(q, r, t);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_virtual_variable(const char *q, rb_gvar_getter_t *w, void_type *e)
{
rb_gvar_setter_t *t = reinterpret_cast<rb_gvar_setter_t*>(e);
::rb_define_virtual_variable(q, w, t);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_virtual_variable(const char *q, type *w, rb_gvar_setter_t *e)
{
rb_gvar_getter_t *r = reinterpret_cast<rb_gvar_getter_t*>(w);
::rb_define_virtual_variable(q, r, e);
}
#ifdef HAVE_NULLPTR
inline void
rb_define_virtual_variable(const char *q, rb_gvar_getter_t *w, std::nullptr_t e)
{
::rb_define_virtual_variable(q, w, e);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_virtual_variable(const char *q, type *w, std::nullptr_t e)
{
rb_gvar_getter_t *r = reinterpret_cast<rb_gvar_getter_t *>(w);
::rb_define_virtual_variable(q, r, e);
}
inline void
rb_define_virtual_variable(const char *q, std::nullptr_t w, rb_gvar_setter_t *e)
{
::rb_define_virtual_variable(q, w, e);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_virtual_variable(const char *q, std::nullptr_t w, void_type *e)
{
rb_gvar_setter_t *r = reinterpret_cast<rb_gvar_setter_t *>(e);
::rb_define_virtual_variable(q, w, r);
}
#endif
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Define a function-backended global variable.
/// @param[in] q Name of the variable.
/// @param[in] w Variable storage.
/// @param[in] e Getter function.
/// @param[in] r Setter function.
/// @note Both functions can be nullptr.
/// @see rb_define_virtual_variable()
/// @deprecated Use glanular typed overload instead.
inline void
rb_define_hooked_variable(const char *q, VALUE *w, type *e, void_type *r)
{
rb_gvar_getter_t *t = reinterpret_cast<rb_gvar_getter_t*>(e);
rb_gvar_setter_t *y = reinterpret_cast<rb_gvar_setter_t*>(r);
::rb_define_hooked_variable(q, w, t, y);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_hooked_variable(const char *q, VALUE *w, rb_gvar_getter_t *e, void_type *r)
{
rb_gvar_setter_t *y = reinterpret_cast<rb_gvar_setter_t*>(r);
::rb_define_hooked_variable(q, w, e, y);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_hooked_variable(const char *q, VALUE *w, type *e, rb_gvar_setter_t *r)
{
rb_gvar_getter_t *t = reinterpret_cast<rb_gvar_getter_t*>(e);
::rb_define_hooked_variable(q, w, t, r);
}
#ifdef HAVE_NULLPTR
inline void
rb_define_hooked_variable(const char *q, VALUE *w, rb_gvar_getter_t *e, std::nullptr_t r)
{
::rb_define_hooked_variable(q, w, e, r);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_hooked_variable(const char *q, VALUE *w, type *e, std::nullptr_t r)
{
rb_gvar_getter_t *y = reinterpret_cast<rb_gvar_getter_t *>(e);
::rb_define_hooked_variable(q, w, y, r);
}
inline void
rb_define_hooked_variable(const char *q, VALUE *w, std::nullptr_t e, rb_gvar_setter_t *r)
{
::rb_define_hooked_variable(q, w, e, r);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
inline void
rb_define_hooked_variable(const char *q, VALUE *w, std::nullptr_t e, void_type *r)
{
rb_gvar_setter_t *y = reinterpret_cast<rb_gvar_setter_t *>(r);
::rb_define_hooked_variable(q, w, e, y);
}
#endif
/// @}
/// @name Exceptions and tag jumps
/// @{
// RUBY_CXX_DEPRECATED("by rb_block_call since 1.9")
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Old way to implement iterators.
/// @param[in] q A function that can yield.
/// @param[in] w Passed to `q`.
/// @param[in] e What is to be yielded.
/// @param[in] r Passed to `e`.
/// @return The return value of `q`.
/// @note `e` can be nullptr.
/// @deprecated This function is obsolated since long before 2.x era. Do not
/// use it any longer. rb_block_call() is provided instead.
inline VALUE
rb_iterate(onearg_type *q, VALUE w, type *e, VALUE r)
{
rb_block_call_func_t t = reinterpret_cast<rb_block_call_func_t>(e);
return backward::rb_iterate_deprecated(q, w, t, r);
}
#ifdef HAVE_NULLPTR
RUBY_CXX_DEPRECATED("by rb_block_call since 1.9")
inline VALUE
rb_iterate(onearg_type *q, VALUE w, std::nullptr_t e, VALUE r)
{
return backward::rb_iterate_deprecated(q, w, e, r);
}
#endif
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Call a method with a block.
/// @param[in] q The self.
/// @param[in] w The method.
/// @param[in] e The # of elems of `r`
/// @param[in] r The arguments.
/// @param[in] t What is to be yielded.
/// @param[in] y Passed to `t`
/// @return Return value of `q#w(*r,&t)`
/// @note 't' can be nullptr.
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_block_call(VALUE q, ID w, int e, const VALUE *r, type *t, VALUE y)
{
rb_block_call_func_t u = reinterpret_cast<rb_block_call_func_t>(t);
return ::rb_block_call(q, w, e, r, u, y);
}
#ifdef HAVE_NULLPTR
inline VALUE
rb_block_call(VALUE q, ID w, int e, const VALUE *r, std::nullptr_t t, VALUE y)
{
return ::rb_block_call(q, w, e, r, t, y);
}
#endif
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief An equivalent of `rescue` clause.
/// @param[in] q A function that can raise.
/// @param[in] w Passed to `q`.
/// @param[in] e A function that cleans-up.
/// @param[in] r Passed to `e`.
/// @return The return value of `q` if no exception occurs, or the return
/// value of `e` if otherwise.
/// @note `e` can be nullptr.
/// @see rb_ensure()
/// @see rb_rescue2()
/// @see rb_protect()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_rescue(type *q, VALUE w, type *e, VALUE r)
{
typedef VALUE func1_t(VALUE);
typedef VALUE func2_t(VALUE, VALUE);
func1_t *t = reinterpret_cast<func1_t*>(q);
func2_t *y = reinterpret_cast<func2_t*>(e);
return ::rb_rescue(t, w, y, r);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief An equivalent of `rescue` clause.
/// @param[in] q A function that can raise.
/// @param[in] w Passed to `q`.
/// @param[in] e A function that cleans-up.
/// @param[in] r Passed to `e`.
/// @param[in] ... 0-terminated list of subclass of @ref rb_eException.
/// @return The return value of `q` if no exception occurs, or the return
/// value of `e` if otherwise.
/// @note `e` can be nullptr.
/// @see rb_ensure()
/// @see rb_rescue()
/// @see rb_protect()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_rescue2(type *q, VALUE w, type *e, VALUE r, ...)
{
typedef VALUE func1_t(VALUE);
typedef VALUE func2_t(VALUE, VALUE);
func1_t *t = reinterpret_cast<func1_t*>(q);
func2_t *y = reinterpret_cast<func2_t*>(e);
va_list ap;
va_start(ap, r);
VALUE ret = ::rb_vrescue2(t, w, y, r, ap);
va_end(ap);
return ret;
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief An equivalent of `ensure` clause.
/// @param[in] q A function that can raise.
/// @param[in] w Passed to `q`.
/// @param[in] e A function that ensures.
/// @param[in] r Passed to `e`.
/// @return The return value of `q`.
/// @note It makes no sense to pass nullptr to `e`.
/// @see rb_rescue()
/// @see rb_rescue2()
/// @see rb_protect()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_ensure(type *q, VALUE w, type *e, VALUE r)
{
typedef VALUE func1_t(VALUE);
func1_t *t = reinterpret_cast<func1_t*>(q);
func1_t *y = reinterpret_cast<func1_t*>(e);
return ::rb_ensure(t, w, y, r);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief An equivalent of `Kernel#catch`.
/// @param[in] q The "tag" string.
/// @param[in] w A function that can throw.
/// @param[in] e Passed to `w`.
/// @return What was thrown.
/// @note `q` can be a nullptr but makes no sense to pass nullptr to`w`.
/// @see rb_block_call()
/// @see rb_protect()
/// @see rb_rb_catch_obj()
/// @see rb_rescue()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_catch(const char *q, type *w, VALUE e)
{
rb_block_call_func_t r = reinterpret_cast<rb_block_call_func_t>(w);
return ::rb_catch(q, r, e);
}
#ifdef HAVE_NULLPTR
inline VALUE
rb_catch(const char *q, std::nullptr_t w, VALUE e)
{
return ::rb_catch(q, w, e);
}
#endif
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief An equivalent of `Kernel#catch`.
/// @param[in] q The "tag" object.
/// @param[in] w A function that can throw.
/// @param[in] e Passed to `w`.
/// @return What was thrown.
/// @note It makes no sense to pass nullptr to`w`.
/// @see rb_block_call()
/// @see rb_protect()
/// @see rb_rb_catch_obj()
/// @see rb_rescue()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_catch_obj(VALUE q, type *w, VALUE e)
{
rb_block_call_func_t r = reinterpret_cast<rb_block_call_func_t>(w);
return ::rb_catch_obj(q, r, e);
}
/// @}
/// @name Procs, Fibers and Threads
/// @{
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Creates a rb_cFiber instance.
/// @param[in] q The fiber body.
/// @param[in] w Passed to `q`.
/// @return What was allocated.
/// @note It makes no sense to pass nullptr to`q`.
/// @see rb_proc_new()
/// @see rb_thread_creatr()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_fiber_new(type *q, VALUE w)
{
rb_block_call_func_t e = reinterpret_cast<rb_block_call_func_t>(q);
return ::rb_fiber_new(e, w);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Creates a @ref rb_cProc instance.
/// @param[in] q The proc body.
/// @param[in] w Passed to `q`.
/// @return What was allocated.
/// @note It makes no sense to pass nullptr to`q`.
/// @see rb_fiber_new()
/// @see rb_thread_creatr()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_proc_new(type *q, VALUE w)
{
rb_block_call_func_t e = reinterpret_cast<rb_block_call_func_t>(q);
return ::rb_proc_new(e, w);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Creates a @ref rb_cThread instance.
/// @param[in] q The thread body.
/// @param[in] w Passed to `q`.
/// @return What was allocated.
/// @note It makes no sense to pass nullptr to`q`.
/// @see rb_proc_new()
/// @see rb_fiber_new()
/// @deprecated Use glanular typed overload instead.
inline VALUE
rb_thread_create(type *q, void *w)
{
typedef VALUE ptr_t(void*);
ptr_t *e = reinterpret_cast<ptr_t*>(q);
return ::rb_thread_create(e, w);
}
/// @}
/// @name Hash and st_table
/// @{
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Iteration over the given table.
/// @param[in] q A table to scan.
/// @param[in] w A function to iterate.
/// @param[in] e Passed to `w`.
/// @retval 0 Always returns 0.
/// @note It makes no sense to pass nullptr to`w`.
/// @see st_foreach_check()
/// @see rb_hash_foreach()
/// @deprecated Use glanular typed overload instead.
inline int
st_foreach(st_table *q, int_type *w, st_data_t e)
{
st_foreach_callback_func *r =
reinterpret_cast<st_foreach_callback_func*>(w);
return ::st_foreach(q, r, e);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Iteration over the given table.
/// @param[in] q A table to scan.
/// @param[in] w A function to iterate.
/// @param[in] e Passed to `w`.
/// @retval 0 Successful end of iteration.
/// @retval 1 Element removed during traversing.
/// @note It makes no sense to pass nullptr to`w`.
/// @see st_foreach()
/// @deprecated Use glanular typed overload instead.
inline int
st_foreach_check(st_table *q, int_type *w, st_data_t e, st_data_t)
{
st_foreach_check_callback_func *t =
reinterpret_cast<st_foreach_check_callback_func*>(w);
return ::st_foreach_check(q, t, e, 0);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Iteration over the given table.
/// @param[in] q A table to scan.
/// @param[in] w A function to iterate.
/// @param[in] e Passed to `w`.
/// @note It makes no sense to pass nullptr to`w`.
/// @see st_foreach_check()
/// @deprecated Use glanular typed overload instead.
inline void
st_foreach_safe(st_table *q, int_type *w, st_data_t e)
{
st_foreach_callback_func *r =
reinterpret_cast<st_foreach_callback_func*>(w);
::st_foreach_safe(q, r, e);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Iteration over the given hash.
/// @param[in] q A hash to scan.
/// @param[in] w A function to iterate.
/// @param[in] e Passed to `w`.
/// @note It makes no sense to pass nullptr to`w`.
/// @see st_foreach()
/// @deprecated Use glanular typed overload instead.
inline void
rb_hash_foreach(VALUE q, int_type *w, VALUE e)
{
st_foreach_callback_func *r =
reinterpret_cast<st_foreach_callback_func*>(w);
::rb_hash_foreach(q, r, e);
}
RUBY_CXX_DEPRECATED("Use of ANYARGS in this function is deprecated")
/// @brief Iteration over each instance variable of the object.
/// @param[in] q An object.
/// @param[in] w A function to iterate.
/// @param[in] e Passed to `w`.
/// @note It makes no sense to pass nullptr to`w`.
/// @see st_foreach()
/// @deprecated Use glanular typed overload instead.
inline void
rb_ivar_foreach(VALUE q, int_type *w, VALUE e)
{
st_foreach_callback_func *r =
reinterpret_cast<st_foreach_callback_func*>(w);
::rb_ivar_foreach(q, r, e);
}
/// @}
/// Driver for *_define_method. ::rb_define_method function for instance takes
/// a pointer to ANYARGS-ed functions, which in fact varies 18 different
/// prototypes. We still need to preserve ANYARGS for storages but why not
/// check the consistencies if possible. In C++ a function has its own
/// prototype, which is a compile-time constant (static type) by nature. We
/// can list up all the possible input types and provide warnings for other
/// cases. This is such attempt.
namespace define_method {
/// Type of ::rb_f_notimplement().
typedef VALUE notimpl_type(int, const VALUE *, VALUE, VALUE);
/// @brief Template metaprogramming to generate function prototypes.
/// @tparam T Type of method id (`ID` or `const char*` in practice).
/// @tparam F Definition driver e.g. ::rb_define_method.
template<typename T, void (*F)(VALUE klass, T mid, type *func, int arity)>
struct driver {
/// @brief Defines a method
/// @tparam N Arity of the function.
/// @tparam U The function in question
template<int N, typename U>
struct engine {
/* :TODO: Following deprecation attribute renders tons of warnings (one
* per every method definitions), which is annoying. Of course
* annoyance is the core feature of deprecation warnings... But that
* could be too much, especially when the warnings happen inside of
* machine-generated programs. And SWIG is known to do such thing.
* The new (granular) API was introduced in API version 2.7. As of
* this writing the version is 2.8. Let's warn this later, some time
* during 3.x. Hopefully codes in old (ANYARGS-ed) format should be
* less than now. */
#if (RUBY_API_VERSION_MAJOR * 100 + RUBY_API_VERSION_MINOR) >= 301
RUBY_CXX_DEPRECATED("use of ANYARGS is deprecated")
#endif
/// @copydoc define(VALUE klass, T mid, U func)
/// @deprecated Pass corrctly typed function instead.
static inline void
define(VALUE klass, T mid, type func)
{
F(klass, mid, func, N);
}
/// @brief Defines klass#mid as func, whose arity is N.
/// @param[in] klass Where the method lives.
/// @param[in] mid Name of the method to define.
/// @param[in] func Function that implements klass#mid.
static inline void
define(VALUE klass, T mid, U func)
{
F(klass, mid, reinterpret_cast<type *>(func), N);
}
/// @copydoc define(VALUE klass, T mid, U func)
static inline void
define(VALUE klass, T mid, notimpl_type func)
{
F(klass, mid, reinterpret_cast<type *>(func), N);
}
};
/// @cond INTERNAL_MACRO
template<int N, bool = false> struct specific : public engine<N, type *> {};
template<bool b> struct specific<15, b> : public engine<15, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<14, b> : public engine<14, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<13, b> : public engine<13, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<12, b> : public engine<12, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<11, b> : public engine<11, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<10, b> : public engine<10, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 9, b> : public engine< 9, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 8, b> : public engine< 8, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 7, b> : public engine< 7, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 6, b> : public engine< 6, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 5, b> : public engine< 5, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 4, b> : public engine< 4, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 3, b> : public engine< 3, VALUE(*)(VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 2, b> : public engine< 2, VALUE(*)(VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 1, b> : public engine< 1, VALUE(*)(VALUE, VALUE)> {};
template<bool b> struct specific< 0, b> : public engine< 0, VALUE(*)(VALUE)> {};
template<bool b> struct specific<-1, b> : public engine<-1, VALUE(*)(int argc, VALUE *argv, VALUE self)> {
using engine<-1, VALUE(*)(int argc, VALUE *argv, VALUE self)>::define;
static inline void define(VALUE c, T m, VALUE(*f)(int argc, const VALUE *argv, VALUE self)) { F(c, m, reinterpret_cast<type *>(f), -1); }
};
template<bool b> struct specific<-2, b> : public engine<-2, VALUE(*)(VALUE, VALUE)> {};
/// @endcond
};
/* We could perhaps merge this struct into the one above using variadic
* template parameters if we could assume C++11, but sadly we cannot. */
template<typename T, void (*F)(T mid, type func, int arity)>
struct driver0 {
template<int N, typename U>
struct engine {
RUBY_CXX_DEPRECATED("use of ANYARGS is deprecated")
static inline void
define(T mid, type func)
{
F(mid, func, N);
}
static inline void
define(T mid, U func)
{
F(mid, reinterpret_cast<type *>(func), N);
}
static inline void
define(T mid, notimpl_type func)
{
F(mid, reinterpret_cast<type *>(func), N);
}
};
/// @cond INTERNAL_MACRO
template<int N, bool = false> struct specific : public engine<N, type *> {};
template<bool b> struct specific<15, b> : public engine<15, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<14, b> : public engine<14, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<13, b> : public engine<13, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<12, b> : public engine<12, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<11, b> : public engine<11, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific<10, b> : public engine<10, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 9, b> : public engine< 9, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 8, b> : public engine< 8, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 7, b> : public engine< 7, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 6, b> : public engine< 6, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 5, b> : public engine< 5, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 4, b> : public engine< 4, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 3, b> : public engine< 3, VALUE(*)(VALUE, VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 2, b> : public engine< 2, VALUE(*)(VALUE, VALUE, VALUE)> {};
template<bool b> struct specific< 1, b> : public engine< 1, VALUE(*)(VALUE, VALUE)> {};
template<bool b> struct specific< 0, b> : public engine< 0, VALUE(*)(VALUE)> {};
template<bool b> struct specific<-1, b> : public engine<-1, VALUE(*)(int argc, VALUE *argv, VALUE self)> {
using engine<-1, VALUE(*)(int argc, VALUE *argv, VALUE self)>::define;
static inline void define(T m, VALUE(*f)(int argc, const VALUE *argv, VALUE self)) { F(m, reinterpret_cast<type *>(f), -1); }
};
template<bool b> struct specific<-2, b> : public engine<-2, VALUE(*)(VALUE, VALUE)> {};
/// @endcond
};
struct rb_define_method : public driver <const char *, ::rb_define_method> {}; ///< Dispatches appropriate driver for ::rb_define_method.
struct rb_define_method_id : public driver <ID, ::rb_define_method_id> {}; ///< Dispatches appropriate driver for ::rb_define_method_id.
struct rb_define_private_method : public driver <const char *, ::rb_define_private_method> {}; ///< Dispatches appropriate driver for ::rb_define_private_method.
struct rb_define_protected_method : public driver <const char *, ::rb_define_protected_method> {}; ///< Dispatches appropriate driver for ::rb_define_protected_method.
struct rb_define_singleton_method : public driver <const char *, ::rb_define_singleton_method> {}; ///< Dispatches appropriate driver for ::rb_define_singleton_method.
struct rb_define_module_function : public driver <const char *, ::rb_define_module_function> {}; ///< Dispatches appropriate driver for ::rb_define_module_function.
struct rb_define_global_function : public driver0<const char *, ::rb_define_global_function> {}; ///< Dispatches appropriate driver for ::rb_define_global_function.
/// @brief Defines klass\#mid.
/// @param klass Where the method lives.
/// @copydetails #rb_define_global_function(mid, func, arity)
#define rb_define_method(klass, mid, func, arity) ::ruby::backward::cxxanyargs::define_method::rb_define_method::specific<arity>::define(klass, mid, func)
/// @copydoc #rb_define_method(klass, mid, func, arity)
#define rb_define_method_id(klass, mid, func, arity) ::ruby::backward::cxxanyargs::define_method::rb_define_method_id::specific<arity>::define(klass, mid, func)
/// @brief Defines klass\#mid and makes it private.
/// @copydetails #rb_define_method(klass, mid, func, arity)
#define rb_define_private_method(klass, mid, func, arity) ::ruby::backward::cxxanyargs::define_method::rb_define_private_method::specific<arity>::define(klass, mid, func)
/// @brief Defines klass\#mid and makes it protected.
/// @copydetails #rb_define_method
#define rb_define_protected_method(klass, mid, func, arity) ::ruby::backward::cxxanyargs::define_method::rb_define_protected_method::specific<arity>::define(klass, mid, func)
/// @brief Defines klass.mid.(klass, mid, func, arity)
/// @copydetails #rb_define_method
#define rb_define_singleton_method(klass, mid, func, arity) ::ruby::backward::cxxanyargs::define_method::rb_define_singleton_method::specific<arity>::define(klass, mid, func)
/// @brief Defines klass\#mid and makes it a module function.
/// @copydetails #rb_define_method(klass, mid, func, arity)
#define rb_define_module_function(klass, mid, func, arity) ::ruby::backward::cxxanyargs::define_method::rb_define_module_function::specific<arity>::define(klass, mid, func)
/// @brief Defines ::rb_mKernel \#mid.
/// @param mid Name of the defining method.
/// @param func Implementation of \#mid.
/// @param arity Arity of \#mid.
#define rb_define_global_function(mid, func, arity) ::ruby::backward::cxxanyargs::define_method::rb_define_global_function::specific<arity>::define(mid, func)
}}}}}
using namespace ruby::backward::cxxanyargs;
#endif // RUBY_BACKWARD_CXXANYARGS_HPP
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