mirror of
https://github.com/lua/lua
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62 lines
1.1 KiB
C
62 lines
1.1 KiB
C
/*
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** $Id: ltm.h,v 1.5 1999/01/15 13:11:57 roberto Exp roberto $
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** Tag methods
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** See Copyright Notice in lua.h
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*/
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#ifndef ltm_h
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#define ltm_h
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#include "lobject.h"
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#include "lstate.h"
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/*
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* WARNING: if you change the order of this enumeration,
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* grep "ORDER IM"
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*/
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typedef enum {
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IM_GETTABLE = 0,
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IM_SETTABLE,
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IM_INDEX,
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IM_GETGLOBAL,
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IM_SETGLOBAL,
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IM_ADD,
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IM_SUB,
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IM_MUL,
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IM_DIV,
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IM_POW,
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IM_UNM,
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IM_LT,
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IM_LE,
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IM_GT,
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IM_GE,
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IM_CONCAT,
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IM_GC,
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IM_FUNCTION
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} IMS;
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#define IM_N 18
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struct IM {
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TObject int_method[IM_N];
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};
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#define luaT_getim(tag,event) (&L->IMtable[-(tag)].int_method[event])
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#define luaT_getimbyObj(o,e) (luaT_getim(luaT_effectivetag(o),(e)))
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extern const char *const luaT_eventname[];
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void luaT_init (void);
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void luaT_realtag (int tag);
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int luaT_effectivetag (const TObject *o);
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void luaT_settagmethod (int t, const char *event, TObject *func);
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const TObject *luaT_gettagmethod (int t, const char *event);
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const char *luaT_travtagmethods (int (*fn)(TObject *));
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void luaT_setfallback (void); /* only if LUA_COMPAT2_5 */
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#endif
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