Features(Lualib/Lua(Jit)): Lua Version and Static Linking Support (#209)

src/LuaEngine/ElunaCompat.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2010 - 2024 Eluna Lua Engine <https://elunaluaengine.github.io/>
+ * This program is free software licensed under GPL version 3
+ * Please see the included DOCS/LICENSE.md for more information
+ */
+
+#ifndef ELUNACOMPAT_H
+#define ELUNACOMPAT_H
+
+extern "C"
+{
+#include "lua.h"
+#include "lauxlib.h"
+};
+
+/* Compatibility layer for compiling with Lua 5.1 or LuaJIT */
+#if LUA_VERSION_NUM == 501
+    int luaL_getsubtable(lua_State* L, int i, const char* name);
+    const char* luaL_tolstring(lua_State* L, int idx, size_t* len);
+    int lua_absindex(lua_State* L, int i);
+    #define lua_pushglobaltable(L) \
+        lua_pushvalue((L), LUA_GLOBALSINDEX)
+    #define lua_rawlen(L, idx) \
+        lua_objlen(L, idx)
+    #define lua_pushunsigned(L, u) \
+        lua_pushinteger(L, u)
+    #define lua_load(L, buf_read, dec_buf, str, NULL) \
+        lua_load(L, buf_read, dec_buf, str)
+
+#if !defined LUAJIT_VERSION
+    void* luaL_testudata(lua_State* L, int index, const char* tname);
+    void luaL_setmetatable(lua_State* L, const char* tname);
+    #define luaL_setfuncs(L, l, n) luaL_register(L, NULL, l)
+#endif
+#endif
+
+#if LUA_VERSION_NUM > 502
+    #define lua_dump(L, writer, data) \
+        lua_dump(L, writer, data, 0)
+    #define lua_pushunsigned(L, u) \
+        lua_pushinteger(L, u)
+#endif
+#endif