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1 /*
2 ** $Id: ltm.h,v 2.22.1.1 2017/04/19 17:20:42 roberto Exp $
3 ** Tag methods
4 ** See Copyright Notice in lua.h
5 */
6 
7 #ifndef ltm_h
8 #define ltm_h
9 
10 
11 #include "lobject.h"
12 
13 
14 /*
15 * WARNING: if you change the order of this enumeration,
16 * grep "ORDER TM" and "ORDER OP"
17 */
18 typedef enum {
19   TM_INDEX,
20   TM_NEWINDEX,
21   TM_GC,
22   TM_MODE,
23   TM_LEN,
24   TM_EQ,  /* last tag method with fast access */
25   TM_ADD,
26   TM_SUB,
27   TM_MUL,
28   TM_MOD,
29   TM_POW,
30   TM_DIV,
31   TM_IDIV,
32   TM_BAND,
33   TM_BOR,
34   TM_BXOR,
35   TM_SHL,
36   TM_SHR,
37   TM_UNM,
38   TM_BNOT,
39   TM_LT,
40   TM_LE,
41   TM_CONCAT,
42   TM_CALL,
43   TM_N		/* number of elements in the enum */
44 } TMS;
45 
46 
47 
48 #define gfasttm(g,et,e) ((et) == NULL ? NULL : \
49   ((et)->flags & (1u<<(e))) ? NULL : luaT_gettm(et, e, (g)->tmname[e]))
50 
51 #define fasttm(l,et,e)	gfasttm(G(l), et, e)
52 
53 #define ttypename(x)	luaT_typenames_[(x) + 1]
54 
55 LUAI_DDEC const char *const luaT_typenames_[LUA_TOTALTAGS];
56 
57 
58 LUAI_FUNC const char *luaT_objtypename (lua_State *L, const TValue *o);
59 
60 LUAI_FUNC const TValue *luaT_gettm (Table *events, TMS event, TString *ename);
61 LUAI_FUNC const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o,
62                                                        TMS event);
63 LUAI_FUNC void luaT_init (lua_State *L);
64 
65 LUAI_FUNC void luaT_callTM (lua_State *L, const TValue *f, const TValue *p1,
66                             const TValue *p2, TValue *p3, int hasres);
67 LUAI_FUNC int luaT_callbinTM (lua_State *L, const TValue *p1, const TValue *p2,
68                               StkId res, TMS event);
69 LUAI_FUNC void luaT_trybinTM (lua_State *L, const TValue *p1, const TValue *p2,
70                               StkId res, TMS event);
71 LUAI_FUNC int luaT_callorderTM (lua_State *L, const TValue *p1,
72                                 const TValue *p2, TMS event);
73 
74 
75 
76 #endif
77