From 4b91e9cde630573cb35bb20101eb74cf5cf79a27 Mon Sep 17 00:00:00 2001 From: Roberto Ierusalimschy Date: Tue, 16 Sep 1997 16:25:59 -0300 Subject: Tag methods --- ltm.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 ltm.h (limited to 'ltm.h') diff --git a/ltm.h b/ltm.h new file mode 100644 index 00000000..7227c243 --- /dev/null +++ b/ltm.h @@ -0,0 +1,61 @@ +/* +** $Id: $ +** Tag methods +** See Copyright Notice in lua.h +*/ + +#ifndef ltm_h +#define ltm_h + + +#include "lobject.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_LE, + IM_GT, + IM_GE, + IM_CONCAT, + IM_GC, + IM_FUNCTION +} IMS; + +#define IM_N 18 + + +extern struct IM { + TObject int_method[IM_N]; +} *luaT_IMtable; + + +#define luaT_getim(tag,event) (&luaT_IMtable[-(tag)].int_method[event]) +#define luaT_getimbyObj(o,e) (luaT_getim(luaT_efectivetag(o),(e))) + +extern char *luaT_eventname[]; + + +void luaT_settag (int tag, TObject *o); +void luaT_realtag (int tag); +int luaT_efectivetag (TObject *o); +void luaT_settagmethod (int t, char *event, TObject *func); +TObject *luaT_gettagmethod (int t, char *event); +char *luaT_travtagmethods (int (*fn)(TObject *)); + +void luaT_setfallback (void); /* only if LUA_COMPAT2_5 */ + +#endif -- cgit v1.2.3-55-g6feb