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/*
** $Id: ltm.h,v 1.12 2000/03/30 16:41:51 roberto Exp roberto $
** Tag methods
** See Copyright Notice in lua.h
*/
#ifndef ltm_h
#define ltm_h
#include "lobject.h"
#include "lstate.h"
/*
* WARNING: if you change the order of this enumeration,
* grep "ORDER IM"
*/
typedef enum {
IM_GETTABLE = 0,
IM_SETTABLE,
IM_INDEX,
IM_GETGLOBAL,
IM_SETGLOBAL,
IM_ADD,
IM_SUB,
IM_MUL,
IM_DIV,
IM_POW,
IM_UNM,
IM_LT,
IM_CONCAT,
IM_GC,
IM_FUNCTION,
IM_N /* number of elements in the enum */
} IMS;
struct IM {
TObject int_method[IM_N];
TString *collected; /* list of G. collected udata with this tag */
};
#define luaT_getim(L,tag,event) (&L->IMtable[tag].int_method[event])
#define luaT_getimbyObj(L,o,e) (luaT_getim(L, luaT_effectivetag(L, o),(e)))
extern const char *const luaT_eventname[];
void luaT_init (lua_State *L);
void luaT_realtag (lua_State *L, int tag);
int luaT_effectivetag (lua_State *L, const TObject *o);
void luaT_settagmethod (lua_State *L, int t, const char *event, TObject *func);
const TObject *luaT_gettagmethod (lua_State *L, int t, const char *event);
const char *luaT_travtagmethods (lua_State *L, int (*fn)(lua_State *, TObject *));
int luaT_validevent (int t, int e); /* used by compatibility module */
#endif
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