Function compat_luaL_setfuncs

engine/script/src/luacjson/lua_cjson.c:1688–1700

Compatibility for Lua 5.1 and older LuaJIT. * * compat_luaL_setfuncs() is used to create a module table where the functions * have json_config_t as their first upvalue. Code borrowed from Lua 5.2 * source's luaL_setfuncs(). */

 * source's luaL_setfuncs().
 */
static void compat_luaL_setfuncs(lua_State *l, const luaL_Reg *reg, int nup)
{
    int i;

    luaL_checkstack(l, nup, "too many upvalues");
    for (; reg->name != NULL; reg++) {  /* fill the table with given functions */
        for (i = 0; i < nup; i++)  /* copy upvalues to the top */
            lua_pushvalue(l, -nup);
        lua_pushcclosure(l, reg->func, nup);  /* closure with those upvalues */
        lua_setfield(l, -(nup + 2), reg->name);
    }
    lua_pop(l, nup);  /* remove upvalues */
}
#else
#define compat_luaL_setfuncs(L, reg, nup) luaL_setfuncs(L, reg, nup)
#endif