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+// The MIT License (MIT)
+
+// Copyright (c) 2013-2020 Rapptz, ThePhD and contributors
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// This file was generated with a script.
+// Generated 2020-10-03 21:34:25.022965 UTC
+// This header was generated with sol v3.2.1 (revision 48eea7b5)
+// https://github.com/ThePhD/sol2
+
+#ifndef SOL_SINGLE_INCLUDE_FORWARD_HPP
+#define SOL_SINGLE_INCLUDE_FORWARD_HPP
+
+// beginning of sol/forward.hpp
+
+#ifndef SOL_FORWARD_HPP
+#define SOL_FORWARD_HPP
+
+// beginning of sol/version.hpp
+
+#include <sol/config.hpp>
+
+#include <cstdint>
+
+#define SOL_VERSION_MAJOR 3
+#define SOL_VERSION_MINOR 5
+#define SOL_VERSION_PATCH 0
+#define SOL_VERSION_STRING "3.5.0"
+#define SOL_VERSION ((SOL_VERSION_MAJOR * 100000) + (SOL_VERSION_MINOR * 100) + (SOL_VERSION_PATCH))
+
+#define SOL_IS_ON(OP_SYMBOL) ((3 OP_SYMBOL 3) != 0)
+#define SOL_IS_OFF(OP_SYMBOL) ((3 OP_SYMBOL 3) == 0)
+#define SOL_IS_DEFAULT_ON(OP_SYMBOL) ((3 OP_SYMBOL 3) > 3)
+#define SOL_IS_DEFAULT_OFF(OP_SYMBOL) ((3 OP_SYMBOL 3 OP_SYMBOL 3) < 0)
+
+#define SOL_ON |
+#define SOL_OFF ^
+#define SOL_DEFAULT_ON +
+#define SOL_DEFAULT_OFF -
+
+#if defined(_MSC_VER)
+ #define SOL_COMPILER_CLANG_I_ SOL_OFF
+ #define SOL_COMPILER_GCC_I_ SOL_OFF
+ #define SOL_COMPILER_EDG_I_ SOL_OFF
+ #define SOL_COMPILER_VCXX_I_ SOL_ON
+#elif defined(__clang__)
+ #define SOL_COMPILER_CLANG_I_ SOL_ON
+ #define SOL_COMPILER_GCC_I_ SOL_OFF
+ #define SOL_COMPILER_EDG_I_ SOL_OFF
+ #define SOL_COMPILER_VCXX_I_ SOL_OFF
+#elif defined(__GNUC__)
+ #define SOL_COMPILER_CLANG_I_ SOL_OFF
+ #define SOL_COMPILER_GCC_I_ SOL_ON
+ #define SOL_COMPILER_EDG_I_ SOL_OFF
+ #define SOL_COMPILER_VCXX_I_ SOL_OFF
+#else
+ #define SOL_COMPILER_CLANG_I_ SOL_OFF
+ #define SOL_COMPILER_GCC_I_ SOL_OFF
+ #define SOL_COMPILER_EDG_I_ SOL_OFF
+ #define SOL_COMPILER_VCXX_I_ SOL_OFF
+#endif
+
+#if defined(__MINGW32__)
+ #define SOL_COMPILER_FRONTEND_MINGW_I_ SOL_ON
+#else
+ #define SOL_COMPILER_FRONTEND_MINGW_I_ SOL_OFF
+#endif
+
+#if SIZE_MAX <= 0xFFFFULL
+ #define SOL_PLATFORM_X16_I_ SOL_ON
+ #define SOL_PLATFORM_X86_I_ SOL_OFF
+ #define SOL_PLATFORM_X64_I_ SOL_OFF
+#elif SIZE_MAX <= 0xFFFFFFFFULL
+ #define SOL_PLATFORM_X16_I_ SOL_OFF
+ #define SOL_PLATFORM_X86_I_ SOL_ON
+ #define SOL_PLATFORM_X64_I_ SOL_OFF
+#else
+ #define SOL_PLATFORM_X16_I_ SOL_OFF
+ #define SOL_PLATFORM_X86_I_ SOL_OFF
+ #define SOL_PLATFORM_X64_I_ SOL_ON
+#endif
+
+#define SOL_PLATFORM_ARM32_I_ SOL_OFF
+#define SOL_PLATFORM_ARM64_I_ SOL_OFF
+
+#if defined(_WIN32)
+ #define SOL_PLATFORM_WINDOWS_I_ SOL_ON
+#else
+ #define SOL_PLATFORM_WINDOWS_I_ SOL_OFF
+#endif
+#if defined(__APPLE__)
+ #define SOL_PLATFORM_APPLE_I_ SOL_ON
+#else
+ #define SOL_PLATFORM_APPLE_I_ SOL_OFF
+#endif
+#if defined(__unix__)
+ #define SOL_PLATFORM_UNIXLIKE_I_ SOL_ON
+#else
+ #define SOL_PLATFORM_UNIXLIKE_I_ SOL_OFF
+#endif
+#if defined(__linux__)
+ #define SOL_PLATFORM_LINUXLIKE_I_ SOL_ON
+#else
+ #define SOL_PLATFORM_LINUXLIKE_I_ SOL_OFF
+#endif
+
+#define SOL_PLATFORM_APPLE_IPHONE_I_ SOL_OFF
+#define SOL_PLATFORM_BSDLIKE_I_ SOL_OFF
+
+#if defined(SOL_IN_DEBUG_DETECTED)
+ #if SOL_IN_DEBUG_DETECTED != 0
+ #define SOL_DEBUG_BUILD_I_ SOL_ON
+ #else
+ #define SOL_DEBUG_BUILD_I_ SOL_OFF
+ #endif
+#elif !defined(NDEBUG)
+ #if SOL_IS_ON(SOL_COMPILER_VCXX_I_) && defined(_DEBUG)
+ #define SOL_DEBUG_BUILD_I_ SOL_ON
+ #elif (SOL_IS_ON(SOL_COMPILER_CLANG_I_) || SOL_IS_ON(SOL_COMPILER_GCC_I_)) && !defined(__OPTIMIZE__)
+ #define SOL_DEBUG_BUILD_I_ SOL_ON
+ #else
+ #define SOL_DEBUG_BUILD_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_DEBUG_BUILD_I_ SOL_DEFAULT_OFF
+#endif // We are in a debug mode of some sort
+
+#if defined(SOL_NO_EXCEPTIONS)
+ #if (SOL_NO_EXCEPTIONS != 0)
+ #define SOL_EXCEPTIONS_I_ SOL_OFF
+ #else
+ #define SOL_EXCEPTIONS_I_ SOL_ON
+ #endif
+#elif SOL_IS_ON(SOL_COMPILER_VCXX_I_)
+ #if !defined(_CPPUNWIND)
+ #define SOL_EXCEPTIONS_I_ SOL_OFF
+ #else
+ #define SOL_EXCEPTIONS_I_ SOL_ON
+ #endif
+#elif SOL_IS_ON(SOL_COMPILER_CLANG_I_) || SOL_IS_ON(SOL_COMPILER_GCC_I_)
+ #if !defined(__EXCEPTIONS)
+ #define SOL_EXCEPTIONS_I_ SOL_OFF
+ #else
+ #define SOL_EXCEPTIONS_I_ SOL_ON
+ #endif
+#else
+ #define SOL_EXCEPTIONS_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_NO_RTTI)
+ #if (SOL_NO_RTTI != 0)
+ #define SOL_RTTI_I_ SOL_OFF
+ #else
+ #define SOL_RTTI_I_ SOL_ON
+ #endif
+#elif SOL_IS_ON(SOL_COMPILER_VCXX_I_)
+ #if !defined(_CPPRTTI)
+ #define SOL_RTTI_I_ SOL_OFF
+ #else
+ #define SOL_RTTI_I_ SOL_ON
+ #endif
+#elif SOL_IS_ON(SOL_COMPILER_CLANG_I_) || SOL_IS_ON(SOL_COMPILER_GCC_I_)
+ #if !defined(__GXX_RTTI)
+ #define SOL_RTTI_I_ SOL_OFF
+ #else
+ #define SOL_RTTI_I_ SOL_ON
+ #endif
+#else
+ #define SOL_RTTI_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_NO_THREAD_LOCAL) && (SOL_NO_THREAD_LOCAL != 0)
+ #define SOL_USE_THREAD_LOCAL_I_ SOL_OFF
+#else
+ #define SOL_USE_THREAD_LOCAL_I_ SOL_DEFAULT_ON
+#endif // thread_local keyword is bjorked on some platforms
+
+#if defined(SOL_ALL_SAFETIES_ON) && (SOL_ALL_SAFETIES_ON != 0)
+ #define SOL_ALL_SAFETIES_ON_I_ SOL_ON
+#else
+ #define SOL_ALL_SAFETIES_ON_I_ SOL_DEFAULT_OFF
+#endif
+
+#if defined(SOL_SAFE_GETTER) && (SOL_SAFE_GETTER != 0)
+ #define SOL_SAFE_GETTER_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_GETTER_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_GETTER_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_GETTER_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_SAFE_USERTYPE) && (SOL_SAFE_USERTYPE != 0)
+ #define SOL_SAFE_USERTYPE_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_USERTYPE_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_USERTYPE_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_USERTYPE_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_SAFE_REFERENCES) && (SOL_SAFE_REFERENCES != 0)
+ #define SOL_SAFE_REFERENCES_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_REFERENCES_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_REFERENCES_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_REFERENCES_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if (defined(SOL_SAFE_FUNCTIONS) && (SOL_SAFE_FUNCTIONS != 0)) \
+ || (defined(SOL_SAFE_FUNCTION_OBJECTS) && (SOL_SAFE_FUNCTION_OBJECTS != 0))
+ #define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_SAFE_FUNCTION_CALLS) && (SOL_SAFE_FUNCTION_CALLS != 0)
+ #define SOL_SAFE_FUNCTION_CALLS_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_FUNCTION_CALLS_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_FUNCTION_CALLS_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_FUNCTION_CALLS_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_SAFE_PROXIES) && (SOL_SAFE_PROXIES != 0)
+ #define SOL_SAFE_PROXIES_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_PROXIES_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_PROXIES_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_PROXIES_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_SAFE_NUMERICS) && (SOL_SAFE_NUMERICS != 0)
+ #define SOL_SAFE_NUMERICS_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_NUMERICS_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_NUMERICS_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_NUMERICS_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_SAFE_STACK_CHECK) && (SOL_SAFE_STACK_CHECK != 0)
+ #define SOL_SAFE_STACK_CHECK_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_SAFE_STACK_CHECK_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_SAFE_STACK_CHECK_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_SAFE_STACK_CHECK_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if (defined(SOL_NO_CHECK_NUMBER_PRECISION) && (SOL_NO_CHECK_NUMBER_PRECISION != 0)) \
+ || (defined(SOL_NO_CHECKING_NUMBER_PRECISION) && (SOL_NO_CHECKING_NUMBER_PRECISION != 0))
+ #define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_OFF
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_SAFE_NUMERICS_I_)
+ #define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_STRINGS_ARE_NUMBERS)
+ #if (SOL_STRINGS_ARE_NUMBERS != 0)
+ #define SOL_STRINGS_ARE_NUMBERS_I_ SOL_ON
+ #else
+ #define SOL_STRINGS_ARE_NUMBERS_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_STRINGS_ARE_NUMBERS_I_ SOL_DEFAULT_OFF
+#endif
+
+#if defined(SOL_ENABLE_INTEROP) && (SOL_ENABLE_INTEROP != 0) \
+ || defined(SOL_USE_INTEROP) && (SOL_USE_INTEROP != 0)
+ #define SOL_USE_INTEROP_I_ SOL_ON
+#else
+ #define SOL_USE_INTEROP_I_ SOL_DEFAULT_OFF
+#endif
+
+#if defined(SOL_NO_NIL)
+ #if (SOL_NO_NIL != 0)
+ #define SOL_NIL_I_ SOL_OFF
+ #else
+ #define SOL_NIL_I_ SOL_ON
+ #endif
+#elif defined(__MAC_OS_X_VERSION_MAX_ALLOWED) || defined(__OBJC__) || defined(nil)
+ #define SOL_NIL_I_ SOL_DEFAULT_OFF
+#else
+ #define SOL_NIL_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_USERTYPE_TYPE_BINDING_INFO)
+ #if (SOL_USERTYPE_TYPE_BINDING_INFO != 0)
+ #define SOL_USERTYPE_TYPE_BINDING_INFO_I_ SOL_ON
+ #else
+ #define SOL_USERTYPE_TYPE_BINDING_INFO_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_USERTYPE_TYPE_BINDING_INFO_I_ SOL_DEFAULT_ON
+#endif // We should generate a my_type.__type table with lots of class information for usertypes
+
+#if defined(SOL_AUTOMAGICAL_TYPES_BY_DEFAULT)
+ #if (SOL_AUTOMAGICAL_TYPES_BY_DEFAULT != 0)
+ #define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_ON
+ #else
+ #define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_OFF
+ #endif
+#elif defined(SOL_DEFAULT_AUTOMAGICAL_USERTYPES)
+ #if (SOL_DEFAULT_AUTOMAGICAL_USERTYPES != 0)
+ #define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_ON
+ #else
+ #define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_DEFAULT_ON
+#endif // make is_automagical on/off by default
+
+#if defined(SOL_STD_VARIANT)
+ #if (SOL_STD_VARIANT != 0)
+ #define SOL_STD_VARIANT_I_ SOL_ON
+ #else
+ #define SOL_STD_VARIANT_I_ SOL_OFF
+ #endif
+#else
+ #if SOL_IS_ON(SOL_COMPILER_CLANG_I_) && SOL_IS_ON(SOL_PLATFORM_APPLE_I_)
+ #if defined(__has_include)
+ #if __has_include(<variant>)
+ #define SOL_STD_VARIANT_I_ SOL_ON
+ #else
+ #define SOL_STD_VARIANT_I_ SOL_OFF
+ #endif
+ #else
+ #define SOL_STD_VARIANT_I_ SOL_OFF
+ #endif
+ #else
+ #define SOL_STD_VARIANT_I_ SOL_DEFAULT_ON
+ #endif
+#endif // make is_automagical on/off by default
+
+#if defined(SOL_NOEXCEPT_FUNCTION_TYPE)
+ #if (SOL_NOEXCEPT_FUNCTION_TYPE != 0)
+ #define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_ON
+ #else
+ #define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_OFF
+ #endif
+#else
+ #if defined(__cpp_noexcept_function_type)
+ #define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_COMPILER_VCXX_I_) && (defined(_MSVC_LANG) && (_MSVC_LANG < 201403L))
+ // There is a bug in the VC++ compiler??
+ // on /std:c++latest under x86 conditions (VS 15.5.2),
+ // compiler errors are tossed for noexcept markings being on function types
+ // that are identical in every other way to their non-noexcept marked types function types...
+ // VS 2019: There is absolutely a bug.
+ #define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_OFF
+ #else
+ #define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_DEFAULT_ON
+ #endif
+#endif // noexcept is part of a function's type
+
+#if defined(SOL_STACK_STRING_OPTIMIZATION_SIZE) && SOL_STACK_STRING_OPTIMIZATION_SIZE > 0
+ #define SOL_OPTIMIZATION_STRING_CONVERSION_STACK_SIZE_I_ SOL_STACK_STRING_OPTIMIZATION_SIZE
+#else
+ #define SOL_OPTIMIZATION_STRING_CONVERSION_STACK_SIZE_I_ 1024
+#endif
+
+#if defined(SOL_ID_SIZE) && SOL_ID_SIZE > 0
+ #define SOL_ID_SIZE_I_ SOL_ID_SIZE
+#else
+ #define SOL_ID_SIZE_I_ 512
+#endif
+
+#if defined(LUA_IDSIZE) && LUA_IDSIZE > 0
+ #define SOL_FILE_ID_SIZE_I_ LUA_IDSIZE
+#elif defined(SOL_ID_SIZE) && SOL_ID_SIZE > 0
+ #define SOL_FILE_ID_SIZE_I_ SOL_FILE_ID_SIZE
+#else
+ #define SOL_FILE_ID_SIZE_I_ 2048
+#endif
+
+#if defined(SOL_PRINT_ERRORS)
+ #if (SOL_PRINT_ERRORS != 0)
+ #define SOL_PRINT_ERRORS_I_ SOL_ON
+ #else
+ #define SOL_PRINT_ERRORS_I_ SOL_OFF
+ #endif
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_PRINT_ERRORS_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_PRINT_ERRORS_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_PRINT_ERRORS_I_ SOL_OFF
+ #endif
+#endif
+
+#if defined(SOL_DEFAULT_PASS_ON_ERROR) && (SOL_DEFAULT_PASS_ON_ERROR != 0)
+ #define SOL_DEFAULT_PASS_ON_ERROR_I_ SOL_ON
+#else
+ #if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+ #define SOL_DEFAULT_PASS_ON_ERROR_I_ SOL_ON
+ #elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+ #define SOL_DEFAULT_PASS_ON_ERROR_I_ SOL_DEFAULT_ON
+ #else
+ #define SOL_DEFAULT_PASS_ON_ERROR_I_ SOL_OFF
+ #endif
+#endif
+
+#if defined(SOL_USING_CXX_LUA)
+ #if (SOL_USING_CXX_LUA != 0)
+ #define SOL_USE_CXX_LUA_I_ SOL_ON
+ #else
+ #define SOL_USE_CXX_LUA_I_ SOL_OFF
+ #endif
+#elif defined(SOL_USE_CXX_LUA)
+ #if (SOL_USE_CXX_LUA != 0)
+ #define SOL_USE_CXX_LUA_I_ SOL_ON
+ #else
+ #define SOL_USE_CXX_LUA_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_USE_CXX_LUA_I_ SOL_OFF
+#endif
+
+#if defined(SOL_USING_CXX_LUAJIT)
+ #if (SOL_USING_CXX_LUA != 0)
+ #define SOL_USE_CXX_LUAJIT_I_ SOL_ON
+ #else
+ #define SOL_USE_CXX_LUAJIT_I_ SOL_OFF
+ #endif
+#elif defined(SOL_USE_CXX_LUAJIT)
+ #if (SOL_USE_CXX_LUA != 0)
+ #define SOL_USE_CXX_LUAJIT_I_ SOL_ON
+ #else
+ #define SOL_USE_CXX_LUAJIT_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_USE_CXX_LUAJIT_I_ SOL_OFF
+#endif
+
+#if defined(SOL_NO_LUA_HPP)
+ #if (SOL_NO_LUA_HPP != 0)
+ #define SOL_USE_LUA_HPP_I_ SOL_OFF
+ #else
+ #define SOL_USE_LUA_HPP_I_ SOL_ON
+ #endif
+#elif defined(SOL_USING_CXX_LUA)
+ #define SOL_USE_LUA_HPP_I_ SOL_OFF
+#elif defined(__has_include)
+ #if __has_include(<lua.hpp>)
+ #define SOL_USE_LUA_HPP_I_ SOL_ON
+ #else
+ #define SOL_USE_LUA_HPP_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_USE_LUA_HPP_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_CONTAINERS_START)
+ #define SOL_CONTAINER_START_INDEX_I_ SOL_CONTAINERS_START
+#elif defined(SOL_CONTAINERS_START_INDEX)
+ #define SOL_CONTAINER_START_INDEX_I_ SOL_CONTAINERS_START_INDEX
+#elif defined(SOL_CONTAINER_START_INDEX)
+ #define SOL_CONTAINER_START_INDEX_I_ SOL_CONTAINER_START_INDEX
+#else
+ #define SOL_CONTAINER_START_INDEX_I_ 1
+#endif
+
+#if defined (SOL_NO_MEMORY_ALIGNMENT)
+ #if (SOL_NO_MEMORY_ALIGNMENT != 0)
+ #define SOL_ALIGN_MEMORY_I_ SOL_OFF
+ #else
+ #define SOL_ALIGN_MEMORY_I_ SOL_ON
+ #endif
+#else
+ #define SOL_ALIGN_MEMORY_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_USE_BOOST)
+ #if (SOL_USE_BOOST != 0)
+ #define SOL_USE_BOOST_I_ SOL_ON
+ #else
+ #define SOL_USE_BOOST_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_USE_BOOST_I_ SOL_OFF
+#endif
+
+#if defined(SOL_USE_UNSAFE_BASE_LOOKUP)
+ #if (SOL_USE_UNSAFE_BASE_LOOKUP != 0)
+ #define SOL_USE_UNSAFE_BASE_LOOKUP_I_ SOL_ON
+ #else
+ #define SOL_USE_UNSAFE_BASE_LOOKUP_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_USE_UNSAFE_BASE_LOOKUP_I_ SOL_OFF
+#endif
+
+#if defined(SOL_INSIDE_UNREAL)
+ #if (SOL_INSIDE_UNREAL != 0)
+ #define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_ON
+ #else
+ #define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_OFF
+ #endif
+#else
+ #if defined(UE_BUILD_DEBUG) || defined(UE_BUILD_DEVELOPMENT) || defined(UE_BUILD_TEST) || defined(UE_BUILD_SHIPPING) || defined(UE_SERVER)
+ #define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_ON
+ #else
+ #define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_DEFAULT_OFF
+ #endif
+#endif
+
+#if defined(SOL_NO_COMPAT)
+ #if (SOL_NO_COMPAT != 0)
+ #define SOL_USE_COMPATIBILITY_LAYER_I_ SOL_OFF
+ #else
+ #define SOL_USE_COMPATIBILITY_LAYER_I_ SOL_ON
+ #endif
+#else
+ #define SOL_USE_COMPATIBILITY_LAYER_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_GET_FUNCTION_POINTER_UNSAFE)
+ #if (SOL_GET_FUNCTION_POINTER_UNSAFE != 0)
+ #define SOL_GET_FUNCTION_POINTER_UNSAFE_I_ SOL_ON
+ #else
+ #define SOL_GET_FUNCTION_POINTER_UNSAFE_I_ SOL_OFF
+ #endif
+#else
+ #define SOL_GET_FUNCTION_POINTER_UNSAFE_I_ SOL_DEFAULT_OFF
+#endif
+
+#if SOL_IS_ON(SOL_COMPILER_FRONTEND_MINGW_I_) && defined(__GNUC__) && (__GNUC__ < 6)
+ // MinGW is off its rocker in some places...
+ #define SOL_MINGW_CCTYPE_IS_POISONED_I_ SOL_ON
+#else
+ #define SOL_MINGW_CCTYPE_IS_POISONED_I_ SOL_DEFAULT_OFF
+#endif
+
+// end of sol/version.hpp
+
+#include <utility>
+#include <type_traits>
+#include <string_view>
+
+#if SOL_IS_ON(SOL_USE_CXX_LUA_I_) || SOL_IS_ON(SOL_USE_CXX_LUAJIT_I_)
+struct lua_State;
+#else
+extern "C" {
+struct lua_State;
+}
+#endif // C++ Mangling for Lua vs. Not
+
+namespace sol {
+
+ enum class type;
+
+ class stateless_reference;
+ template <bool b>
+ class basic_reference;
+ using reference = basic_reference<false>;
+ using main_reference = basic_reference<true>;
+ class stateless_stack_reference;
+ class stack_reference;
+
+ template <typename A>
+ class basic_bytecode;
+
+ struct lua_value;
+
+ struct proxy_base_tag;
+ template <typename>
+ struct proxy_base;
+ template <typename, typename>
+ struct table_proxy;
+
+ template <bool, typename>
+ class basic_table_core;
+ template <bool b>
+ using table_core = basic_table_core<b, reference>;
+ template <bool b>
+ using main_table_core = basic_table_core<b, main_reference>;
+ template <bool b>
+ using stack_table_core = basic_table_core<b, stack_reference>;
+ template <typename base_type>
+ using basic_table = basic_table_core<false, base_type>;
+ using table = table_core<false>;
+ using global_table = table_core<true>;
+ using main_table = main_table_core<false>;
+ using main_global_table = main_table_core<true>;
+ using stack_table = stack_table_core<false>;
+ using stack_global_table = stack_table_core<true>;
+
+ template <typename>
+ struct basic_lua_table;
+ using lua_table = basic_lua_table<reference>;
+ using stack_lua_table = basic_lua_table<stack_reference>;
+
+ template <typename T, typename base_type>
+ class basic_usertype;
+ template <typename T>
+ using usertype = basic_usertype<T, reference>;
+ template <typename T>
+ using stack_usertype = basic_usertype<T, stack_reference>;
+
+ template <typename base_type>
+ class basic_metatable;
+ using metatable = basic_metatable<reference>;
+ using stack_metatable = basic_metatable<stack_reference>;
+
+ template <typename base_t>
+ struct basic_environment;
+ using environment = basic_environment<reference>;
+ using main_environment = basic_environment<main_reference>;
+ using stack_environment = basic_environment<stack_reference>;
+
+ template <typename T, bool>
+ class basic_function;
+ template <typename T, bool, typename H>
+ class basic_protected_function;
+ using unsafe_function = basic_function<reference, false>;
+ using safe_function = basic_protected_function<reference, false, reference>;
+ using main_unsafe_function = basic_function<main_reference, false>;
+ using main_safe_function = basic_protected_function<main_reference, false, reference>;
+ using stack_unsafe_function = basic_function<stack_reference, false>;
+ using stack_safe_function = basic_protected_function<stack_reference, false, reference>;
+ using stack_aligned_unsafe_function = basic_function<stack_reference, true>;
+ using stack_aligned_safe_function = basic_protected_function<stack_reference, true, reference>;
+ using protected_function = safe_function;
+ using main_protected_function = main_safe_function;
+ using stack_protected_function = stack_safe_function;
+ using stack_aligned_protected_function = stack_aligned_safe_function;
+#if SOL_IS_ON(SOL_SAFE_FUNCTION_OBJECTS_I_)
+ using function = protected_function;
+ using main_function = main_protected_function;
+ using stack_function = stack_protected_function;
+ using stack_aligned_function = stack_aligned_safe_function;
+#else
+ using function = unsafe_function;
+ using main_function = main_unsafe_function;
+ using stack_function = stack_unsafe_function;
+ using stack_aligned_function = stack_aligned_unsafe_function;
+#endif
+ using stack_aligned_stack_handler_function = basic_protected_function<stack_reference, true, stack_reference>;
+
+ struct unsafe_function_result;
+ struct protected_function_result;
+ using safe_function_result = protected_function_result;
+#if SOL_IS_ON(SOL_SAFE_FUNCTION_OBJECTS_I_)
+ using function_result = safe_function_result;
+#else
+ using function_result = unsafe_function_result;
+#endif
+
+ template <typename base_t>
+ class basic_object_base;
+ template <typename base_t>
+ class basic_object;
+ template <typename base_t>
+ class basic_userdata;
+ template <typename base_t>
+ class basic_lightuserdata;
+ template <typename base_t>
+ class basic_coroutine;
+ template <typename base_t>
+ class basic_thread;
+
+ using object = basic_object<reference>;
+ using userdata = basic_userdata<reference>;
+ using lightuserdata = basic_lightuserdata<reference>;
+ using thread = basic_thread<reference>;
+ using coroutine = basic_coroutine<reference>;
+ using main_object = basic_object<main_reference>;
+ using main_userdata = basic_userdata<main_reference>;
+ using main_lightuserdata = basic_lightuserdata<main_reference>;
+ using main_coroutine = basic_coroutine<main_reference>;
+ using stack_object = basic_object<stack_reference>;
+ using stack_userdata = basic_userdata<stack_reference>;
+ using stack_lightuserdata = basic_lightuserdata<stack_reference>;
+ using stack_thread = basic_thread<stack_reference>;
+ using stack_coroutine = basic_coroutine<stack_reference>;
+
+ struct stack_proxy_base;
+ struct stack_proxy;
+ struct variadic_args;
+ struct variadic_results;
+ struct stack_count;
+ struct this_state;
+ struct this_main_state;
+ struct this_environment;
+
+ class state_view;
+ class state;
+
+ template <typename T>
+ struct as_table_t;
+ template <typename T>
+ struct as_container_t;
+ template <typename T>
+ struct nested;
+ template <typename T>
+ struct light;
+ template <typename T>
+ struct user;
+ template <typename T>
+ struct as_args_t;
+ template <typename T>
+ struct protect_t;
+ template <typename F, typename... Policies>
+ struct policy_wrapper;
+
+ template <typename T>
+ struct usertype_traits;
+ template <typename T>
+ struct unique_usertype_traits;
+
+ template <typename... Args>
+ struct types {
+ typedef std::make_index_sequence<sizeof...(Args)> indices;
+ static constexpr std::size_t size() {
+ return sizeof...(Args);
+ }
+ };
+
+ template <typename T>
+ struct derive : std::false_type {
+ typedef types<> type;
+ };
+
+ template <typename T>
+ struct base : std::false_type {
+ typedef types<> type;
+ };
+
+ template <typename T>
+ struct weak_derive {
+ static bool value;
+ };
+
+ template <typename T>
+ bool weak_derive<T>::value = false;
+
+ namespace stack {
+ struct record;
+ }
+
+#if SOL_IS_OFF(SOL_USE_BOOST_I_)
+ template <class T>
+ class optional;
+
+ template <class T>
+ class optional<T&>;
+#endif
+
+ using check_handler_type = int(lua_State*, int, type, type, const char*);
+
+} // namespace sol
+
+#define SOL_BASE_CLASSES(T, ...) \
+ namespace sol { \
+ template <> \
+ struct base<T> : std::true_type { \
+ typedef ::sol::types<__VA_ARGS__> type; \
+ }; \
+ } \
+ void a_sol3_detail_function_decl_please_no_collide()
+#define SOL_DERIVED_CLASSES(T, ...) \
+ namespace sol { \
+ template <> \
+ struct derive<T> : std::true_type { \
+ typedef ::sol::types<__VA_ARGS__> type; \
+ }; \
+ } \
+ void a_sol3_detail_function_decl_please_no_collide()
+
+#endif // SOL_FORWARD_HPP
+// end of sol/forward.hpp
+
+#endif // SOL_SINGLE_INCLUDE_FORWARD_HPP