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#ifndef LUA_OBJS_H

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#define LUA_OBJS_H

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/**

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 * @file

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 *

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 * Defines lua functions to access the various objects in a nexus

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 */

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#include "nexus_lua.h"

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#include <lua5.1/lua.h>

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#include <lua5.1/lauxlib.h>

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/**

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 * Register a new metatable for a named type, this leaves the metatable on the stack.

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 */

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void lua_obj_create_type (lua_State *L, const char *name, const struct luaL_Reg methods[]);

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/**

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 * Create a new userdata with the given type metatable name, return the pointer, and keep it on the stack.

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 */

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void* lua_obj_create_obj (lua_State *L, const char *name, size_t size);

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/**

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 * Create a new metatable for a type, a userdata for that type, and register it as a global

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 */

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void* lua_obj_create_global_type (lua_State *L, const char *type_name, const struct luaL_Reg methods[], const char *global_name, size_t size);

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/**

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 * Get a userdata with the given type metatable name as the first argument for a function.

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 */

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void* lua_obj_get_obj (lua_State *L, const char *func, const char *name);

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/**

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 * Used as the "invalid" default value

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 */

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#define LUA_ARG_REQUIRED (-1)

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#define LUA_ARG_STRING_REQUIRED ((const char *) (-1))

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/**

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 * Parse and return a string argument

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 */

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/**

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 * Parse and return a boolean argument

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 */

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/**

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 * Registers our lua runtime objects into the given lua state.

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 *

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 * Call in protected mode.

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 */

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void lua_objs_init (struct nexus_lua *lua);

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#endif /* LUA_OBJS_H */