MRCanonicalTypedefs.h

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#pragma once
 
#include "MRMesh/MRMacros.h"
 
 
#define MR_CANONICAL_TYPEDEFS(type_, name_, aliases_) \
    MR_IDENTITY type_ name_; \
    MR_END(DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_A aliases_) \
    DETAIL_MR_CANONICAL_TYPEDEFS(type_, name_, aliases_)
 
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_BODY(name_, ...) using name_ = __VA_ARGS__;
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_A(...) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_BODY MR_IDENTITY()(__VA_ARGS__) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_B
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_B(...) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_BODY MR_IDENTITY()(__VA_ARGS__) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_A
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_A_END
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_USING_B_END
 
#if defined(__has_attribute)
#if __has_attribute(__preferred_name__)
#define DETAIL_MR_CANONICAL_TYPEDEFS(type_, name_, aliases_) \
    MR_IDENTITY type_ \
        MR_END(DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_A aliases_) \
        name_; \
    DETAIL_MR_CANONICAL_TYPEDEFS_CLANG_WORKAROUND(aliases_)
 
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_BODY(name_, ...) __attribute__((__preferred_name__(name_)))
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_A(...) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_BODY(__VA_ARGS__) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_B
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_B(...) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_BODY(__VA_ARGS__) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_A
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_A_END
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_ATTR_B_END
 
#ifdef __clang__ 
 
#define DETAIL_MR_CANONICAL_TYPEDEFS_CLANG_WORKAROUND(aliases_) \
    MR_END(DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_A aliases_)
 
namespace MR::detail::CanonicalTypedefs
{
template <typename> struct RegisterType {};
}
 
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_BODY(name_, ...) static_assert((void(::MR::detail::CanonicalTypedefs::RegisterType<__VA_ARGS__>{}), true));
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_A(...) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_BODY(__VA_ARGS__) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_B
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_B(...) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_BODY(__VA_ARGS__) DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_A
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_A_END
#define DETAIL_MR_CANONICAL_TYPEDEFS_LOOP_TOUCH_B_END
 
#else 
#define DETAIL_MR_CANONICAL_TYPEDEFS_CLANG_WORKAROUND(aliases_)
#endif
 
#else 
#define DETAIL_MR_CANONICAL_TYPEDEFS(type_, name_, aliases_)
#endif
 
#else 
#define DETAIL_MR_CANONICAL_TYPEDEFS(type_, name_, aliases_)
#endif