xref: /freebsd/sys/contrib/openzfs/module/lua/ltm.h (revision 7877fdebeeb35fad1cbbafce22598b1bdf97c786)
1 /* BEGIN CSTYLED */
2 /*
3 ** $Id: ltm.h,v 2.11.1.1 2013/04/12 18:48:47 roberto Exp $
4 ** Tag methods
5 ** See Copyright Notice in lua.h
6 */
7 
8 #ifndef ltm_h
9 #define ltm_h
10 
11 
12 #include "lobject.h"
13 
14 
15 /*
16 * WARNING: if you change the order of this enumeration,
17 * grep "ORDER TM"
18 */
19 typedef enum {
20   TM_INDEX,
21   TM_NEWINDEX,
22   TM_GC,
23   TM_MODE,
24   TM_LEN,
25   TM_EQ,  /* last tag method with `fast' access */
26   TM_ADD,
27   TM_SUB,
28   TM_MUL,
29   TM_DIV,
30   TM_MOD,
31   TM_POW,
32   TM_UNM,
33   TM_LT,
34   TM_LE,
35   TM_CONCAT,
36   TM_CALL,
37   TM_N		/* number of elements in the enum */
38 } TMS;
39 
40 
41 
42 #define gfasttm(g,et,e) ((et) == NULL ? NULL : \
43   ((et)->flags & (1u<<(e))) ? NULL : luaT_gettm(et, e, (g)->tmname[e]))
44 
45 #define fasttm(l,et,e)	gfasttm(G(l), et, e)
46 
47 #define ttypename(x)	luaT_typenames_[(x) + 1]
48 #define objtypename(x)	ttypename(ttypenv(x))
49 
50 LUAI_DDEC const char *const luaT_typenames_[LUA_TOTALTAGS];
51 
52 
53 LUAI_FUNC const TValue *luaT_gettm (Table *events, TMS event, TString *ename);
54 LUAI_FUNC const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o,
55                                                        TMS event);
56 LUAI_FUNC void luaT_init (lua_State *L);
57 
58 #endif
59 /* END CSTYLED */
60