[people/ms/libloc.git] / src / lua / compat.h

/*
	libloc - A library to determine the location of someone on the Internet

	Copyright (C) 2024 IPFire Development Team <info@ipfire.org>

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License as published by the Free Software Foundation; either
	version 2.1 of the License, or (at your option) any later version.

	This library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	Lesser General Public License for more details.
*/

#ifndef LUA_LOCATION_COMPAT_H
#define LUA_LOCATION_COMPAT_H

#include <lua.h>
#include <lauxlib.h>

#if LUA_VERSION_RELEASE_NUM < 502

static inline void luaL_setmetatable(lua_State* L, const char* name) {
	luaL_checkstack(L, 1, "not enough stack slots");
	luaL_getmetatable(L, name);
	lua_setmetatable(L, -2);
}

static inline void luaL_setfuncs(lua_State* L, const luaL_Reg* l, int nup) {
	int i;

	luaL_checkstack(L, nup+1, "too many upvalues");

	for (; l->name != NULL; l++) {
		lua_pushstring(L, l->name);

		for (i = 0; i < nup; i++)
			lua_pushvalue(L, -(nup + 1));

		lua_pushcclosure(L, l->func, nup);
		lua_settable(L, -(nup + 3));
  }

  lua_pop(L, nup);
}

static inline void luaL_newlib(lua_State* L, const luaL_Reg* l) {
  lua_newtable(L);
  luaL_setfuncs(L, l, 0);
}

#endif /* Lua < 5.2 */

#endif /* LUA_LOCATION_COMPAT_H */
Commit	Line	Data
031bae06 MT	1	/*
	2	libloc - A library to determine the location of someone on the Internet
	3
	4	Copyright (C) 2024 IPFire Development Team <info@ipfire.org>
	5
	6	This library is free software; you can redistribute it and/or
	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
	10
	11	This library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	Lesser General Public License for more details.
	15	*/
	16
	17	#ifndef LUA_LOCATION_COMPAT_H
	18	#define LUA_LOCATION_COMPAT_H
	19
	20	#include <lua.h>
	21	#include <lauxlib.h>
	22
	23	#if LUA_VERSION_RELEASE_NUM < 502
	24
	25	static inline void luaL_setmetatable(lua_State* L, const char* name) {
	26	luaL_checkstack(L, 1, "not enough stack slots");
	27	luaL_getmetatable(L, name);
	28	lua_setmetatable(L, -2);
	29	}
	30
	31	static inline void luaL_setfuncs(lua_State* L, const luaL_Reg* l, int nup) {
	32	int i;
	33
	34	luaL_checkstack(L, nup+1, "too many upvalues");
	35
	36	for (; l->name != NULL; l++) {
	37	lua_pushstring(L, l->name);
	38
	39	for (i = 0; i < nup; i++)
	40	lua_pushvalue(L, -(nup + 1));
	41
	42	lua_pushcclosure(L, l->func, nup);
	43	lua_settable(L, -(nup + 3));
	44	}
	45
	46	lua_pop(L, nup);
	47	}
	48
	49	static inline void luaL_newlib(lua_State* L, const luaL_Reg* l) {
	50	lua_newtable(L);
	51	luaL_setfuncs(L, l, 0);
	52	}
	53
	54	#endif /* Lua < 5.2 */
	55
	56	#endif /* LUA_LOCATION_COMPAT_H */