l_metadata.h

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/*
Minetest
Copyright (C) 2013-8 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2017-8 rubenwardy <rw@rubenwardy.com>
 
This program 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 program 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.
 
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
 
#pragma once
 
#include "irrlichttypes_bloated.h"
#include "lua_api/l_base.h"
 
class IMetadata;
 
/*
    NodeMetaRef
*/
 
class MetaDataRef : public ModApiBase
{
public:
    virtual ~MetaDataRef() = default;
 
    static MetaDataRef *checkAnyMetadata(lua_State *L, int narg);
 
protected:
    virtual void reportMetadataChange(const std::string *name = nullptr) {}
    virtual IMetadata *getmeta(bool auto_create) = 0;
    virtual void clearMeta() = 0;
 
    virtual void handleToTable(lua_State *L, IMetadata *meta);
    virtual bool handleFromTable(lua_State *L, int table, IMetadata *meta);
 
    static void registerMetadataClass(lua_State *L, const char *name, const luaL_Reg *methods);
 
    // Exported functions
 
    static int gc_object(lua_State *L);
 
    // contains(self, name)
    static int l_contains(lua_State *L);
 
    // get(self, name)
    static int l_get(lua_State *L);
 
    // get_string(self, name)
    static int l_get_string(lua_State *L);
 
    // set_string(self, name, var)
    static int l_set_string(lua_State *L);
 
    // get_int(self, name)
    static int l_get_int(lua_State *L);
 
    // set_int(self, name, var)
    static int l_set_int(lua_State *L);
 
    // get_float(self, name)
    static int l_get_float(lua_State *L);
 
    // set_float(self, name, var)
    static int l_set_float(lua_State *L);
 
    // get_keys(self)
    static int l_get_keys(lua_State *L);
 
    // to_table(self)
    static int l_to_table(lua_State *L);
 
    // from_table(self, table)
    static int l_from_table(lua_State *L);
 
    // equals(self, other)
    static int l_equals(lua_State *L);
};