AuroraRuntime/Include/AuroraMacros.hpp

/***
    Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: AuroraMacros.hpp
    Date: 2021-6-10
    Author: Reece
***/
#pragma once

#define AU_NO_COPY(type)         type(type&)  = delete;
#define AU_NO_MOVE(type)         type(type&&) = delete;
#define AU_NO_COPY_NO_MOVE(type) AU_NO_COPY(type) AU_NO_MOVE(type)

#if !defined(AU_SHARED_FROM_THIS)
    #define AU_SHARED_FROM_THIS      (std::static_pointer_cast<std::remove_pointer_t<decltype(this)>>(this->shared_from_this()))
#endif

#if !defined(AU_WEAK_FROM_THIS)
    #define AU_WEAK_FROM_THIS        (AuWPtr<std::remove_pointer_t<decltype(this)>>(std::static_pointer_cast<std::remove_pointer_t<decltype(this)>>(this->shared_from_this())))
#endif

#define AU_BRACKET_SCOPE(...)    __VA_ARGS__

#if !defined(AU_TEMPLATE_ENABLE_WHEN)
    #define AU_TEMPLATE_ENABLE_WHEN(...) typename std::enable_if<__VA_ARGS__>::type* = nullptr
#endif

#define AU_WHAT(n) n

/// @hideinitializer
#define AU_STRINGIFY_(in) #in
#define AU_STRINGIFY(in) AU_STRINGIFY_(in)

/// @hideinitializer
#define AU_CONCAT_(a, b) a ## b
#define AU_CONCAT(a, b) AU_CONCAT_(a, b)

/// @hideinitializer
#define _AUKCON_STRINGIFY_X(in) AU_STRINGIFY(in)

#if !defined(AU_SHARED_API_EX)
    #define AU_SHARED_API_EX(vis, name, type, ...)                      \
                                                                        \
    vis type *name ## New(__VA_ARGS__);                                 \
    vis void  name ## Release(type *);                                  \
    static inline void name ## Destroy(type *val)                       \
    {                                                                   \
        name ## Release(val);                                           \
    }                                                                   \
                                                                        \
    struct CppDeleter ## name                                           \
    {                                                                   \
        void operator()(type *t)                                        \
        {                                                               \
            name ## Release(t);                                         \
        }                                                               \
    };                                                                  \
                                                                        \
    using name ## Unique_t = AURORA_RUNTIME_AU_UNIQUE_PTR<type, CppDeleter ## name>; \
    template<typename ... T>                                            \
    name ## Unique_t name ## Unique(T... args)                          \
    {                                                                   \
        return name ## Unique_t(name ## New(args...));                  \
    }                                                                   \
                                                                        \
    using name ## Shared_t = std::shared_ptr<type>;                     \
    template<typename ... T>                                            \
    name ## Shared_t name ## Shared(T... args)                          \
    {                                                                   \
        return name ## Shared_t(name ## New(args...), name ## Release); \
    }
#endif

#if !defined(AU_SHARED_API)
    #define AU_SHARED_API(name, type, ...) AU_SHARED_API_EX(, name, type, #__VA_ARGS__)
#endif

#if !defined(AU_NOINLINE)
    #if defined(AURORA_COMPILER_MSVC)
        #define AU_NOINLINE __declspec(noinline)
    #else
        #define AU_NOINLINE __attribute__((noinline))
    #endif
#endif

#if !defined(AU_INLINE)
    #if defined(AURORA_COMPILER_MSVC)
        #define AU_INLINE __forceinline
    #else
        #define AU_INLINE __attribute__((always_inline))
    #endif
#endif

#if !defined(AU_NORETURN)
    #if defined(AURORA_COMPILER_MSVC)
        #define AU_NORETURN __declspec(noreturn)
    #elif (defined(AURORA_COMPILER_CLANG)  || defined(AURORA_COMPILER_GCC))
        #define AU_NORETURN __attribute__((noreturn))
    #elif defined(AU_LANG_CPP)
        #define AU_NORETURN [[noreturn]]
    #else
        #define AU_NORETURN
    #endif
#endif
 
#if !defined(AU_ALLOC)
    #if defined(AURORA_PLATFORM_WIN32)
        #define AU_ALLOC __declspec(allocator) 
    #elif defined(AURORA_COMPILER_CLANG) 
        #define AU_ALLOC __declspec(allocator)
    #elif defined(AURORA_COMPILER_GCC)
        #define AU_ALLOC __attribute__((malloc))
    #else 
        #define AU_ALLOC
    #endif
#endif

#if !defined(NO__NEW)
    #if !defined(_new)
        #define _new new (std::nothrow)
    #endif
#endif

#if !defined(NO__INLINE)
    #if !defined(auline)
        #define auline AU_INLINE
    #endif
#endif

#if !defined(AU_FWD)
    #define AU_FWD(var) std::forward<decltype(var)>(var)
#endif

#if !defined(AU_THROW_STRING)
    #define AU_THROW_STRING(var) throw std::string(var)
#endif

#define AU_ITERATE_ARRAY(index, arry)        AuUInt index = 0; index < AuArraySize(arry); index++
#define AU_ITERATE_N(index, n)               AuUInt index = 0; index < n; index++
#define AU_ITERATE_N_TO_X(index, n, x)       AuUInt index = n; index < x; index++
#define AU_ITERATE_BACKWARDS(index, lastIdx) AuUInt index = lastIdx; index <= 0; index--

#define AU_ITR_ARRAY AU_ITERATE_ARRAY
#define AU_ITR_N AU_ITERATE_N
#define AU_ITR_N_TO_X AU_ITERATE_N_TO_X
#define AU_ITR_BACKWARDS AU_ITERATE_BACKWARDS

#define AU_STRIP_BRACKETS_IMPL(X) X

#if !defined(AU_STRIP_BRACKETS)
    #define AU_STRIP_BRACKETS(X) AU_STRIP_BRACKETS_IMPL(AU_BRACKET_SCOPE X)
#endif

#if !defined(AU_STRIP)
    #define AU_STRIP AU_STRIP_BRACKETS
#endif

#if !defined(AU_EMIT_FIRST)
    #define AU_EMIT_FIRST(a, b)a
#endif

#if !defined(AU_EMIT_SECOND)
    #define AU_EMIT_SECOND(a, b)b
#endif

#if !defined(AU_EMIT_BOTH)
    #define AU_EMIT_BOTH(a, b)a, a
#endif

#if !defined(AuBindThis)
    #define AuBindThis(method, ...) std::bind(method, this, ## __VA_ARGS__)
#endif

#if !defined(AuSharedFromThis)
    #define AuSharedFromThis() AU_SHARED_FROM_THIS
#endif

#if !defined(AuWeakFromThis)
    #define AuWeakFromThis() AU_SHARED_FROM_THIS
#endif

#define AU_DEFINE_CTOR_ONE(thisType, pairTypeName) \
    inline thisType(AU_EMIT_FIRST pairTypeName && AU_EMIT_SECOND pairTypeName) : AU_EMIT_SECOND pairTypeName (AU_EMIT_SECOND pairTypeName) {} \
    inline thisType(const AU_EMIT_FIRST pairTypeName & AU_EMIT_SECOND pairTypeName) : AU_EMIT_SECOND pairTypeName (AU_EMIT_SECOND pairTypeName) {}

#define AU_DEFINE_CTOR_TWO(thisType, pairTypeName, pairTypeName2) \
    inline thisType(AU_EMIT_FIRST pairTypeName && AU_EMIT_SECOND pairTypeName, AU_EMIT_FIRST pairTypeName2 && AU_EMIT_SECOND pairTypeName2) : AU_EMIT_SECOND pairTypeName (AU_EMIT_SECOND pairTypeName), AU_EMIT_SECOND pairTypeName2 (AU_EMIT_SECOND pairTypeName2) {} \
    inline thisType(const AU_EMIT_FIRST pairTypeName & AU_EMIT_SECOND pairTypeName, AU_EMIT_FIRST pairTypeName2 && AU_EMIT_SECOND pairTypeName2) : AU_EMIT_SECOND pairTypeName (AU_EMIT_SECOND pairTypeName), AU_EMIT_SECOND pairTypeName2 (AU_EMIT_SECOND pairTypeName2) {} \
    inline thisType(AU_EMIT_FIRST pairTypeName && AU_EMIT_SECOND pairTypeName, const AU_EMIT_FIRST pairTypeName2 & AU_EMIT_SECOND pairTypeName2) : AU_EMIT_SECOND pairTypeName (AU_EMIT_SECOND pairTypeName), AU_EMIT_SECOND pairTypeName2 (AU_EMIT_SECOND pairTypeName2) {} \
    inline thisType(const AU_EMIT_FIRST pairTypeName & AU_EMIT_SECOND pairTypeName, const AU_EMIT_FIRST pairTypeName2 & AU_EMIT_SECOND pairTypeName2) : AU_EMIT_SECOND pairTypeName (AU_EMIT_SECOND pairTypeName), AU_EMIT_SECOND pairTypeName2 (AU_EMIT_SECOND pairTypeName2) {}