2 ** $Id: lauxlib.h,v 1.120.1.1 2013/04/12 18:48:47 roberto Exp $
3 ** Auxiliary functions for building Lua libraries
4 ** See Copyright Notice in lua.h
12 #include <sys/zfs_context.h>
18 /* extra error code for `luaL_load' */
19 #define LUA_ERRFILE (LUA_ERRERR+1)
22 typedef struct luaL_Reg {
28 LUALIB_API void (luaL_checkversion_) (lua_State *L, lua_Number ver);
29 #define luaL_checkversion(L) luaL_checkversion_(L, LUA_VERSION_NUM)
31 LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
32 LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
33 LUALIB_API const char *(luaL_tolstring) (lua_State *L, int idx, size_t *len);
34 LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
35 LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg,
37 LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg,
38 const char *def, size_t *l);
39 LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg);
40 LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def);
42 LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
43 LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
45 LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg);
46 LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg,
49 LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
50 LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
51 LUALIB_API void (luaL_checkany) (lua_State *L, int narg);
53 LUALIB_API int (luaL_newmetatable) (lua_State *L, const char *tname);
54 LUALIB_API void (luaL_setmetatable) (lua_State *L, const char *tname);
55 LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname);
56 LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
58 LUALIB_API void (luaL_where) (lua_State *L, int lvl);
59 LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
61 LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def,
62 const char *const lst[]);
64 /* pre-defined references */
65 #define LUA_NOREF (-2)
66 #define LUA_REFNIL (-1)
68 LUALIB_API int (luaL_ref) (lua_State *L, int t);
69 LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
71 LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz,
72 const char *name, const char *mode);
73 LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
75 LUALIB_API int (luaL_len) (lua_State *L, int idx);
77 LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
80 LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
82 LUALIB_API int (luaL_getsubtable) (lua_State *L, int idx, const char *fname);
84 LUALIB_API void (luaL_traceback) (lua_State *L, lua_State *L1,
85 const char *msg, int level);
87 LUALIB_API void (luaL_requiref) (lua_State *L, const char *modname,
88 lua_CFunction openf, int glb);
91 ** ===============================================================
93 ** ===============================================================
97 #define luaL_newlibtable(L,l) \
98 lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1)
100 #define luaL_newlib(L,l) (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0))
102 #define luaL_argcheck(L, cond,numarg,extramsg) \
103 ((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))
104 #define luaL_checkstring(L,n) (luaL_checklstring(L, (n), NULL))
105 #define luaL_optstring(L,n,d) (luaL_optlstring(L, (n), (d), NULL))
106 #define luaL_checkint(L,n) ((int)luaL_checkinteger(L, (n)))
107 #define luaL_optint(L,n,d) ((int)luaL_optinteger(L, (n), (d)))
108 #define luaL_checklong(L,n) ((long)luaL_checkinteger(L, (n)))
109 #define luaL_optlong(L,n,d) ((long)luaL_optinteger(L, (n), (d)))
111 #define luaL_typename(L,i) lua_typename(L, lua_type(L,(i)))
113 #define luaL_dofile(L, fn) \
114 (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))
116 #define luaL_dostring(L, s) \
117 (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))
119 #define luaL_getmetatable(L,n) (lua_getfield(L, LUA_REGISTRYINDEX, (n)))
121 #define luaL_opt(L,f,n,d) (lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))
123 #define luaL_loadbuffer(L,s,sz,n) luaL_loadbufferx(L,s,sz,n,NULL)
127 ** {======================================================
128 ** Generic Buffer manipulation
129 ** =======================================================
132 typedef struct luaL_Buffer {
133 char *b; /* buffer address */
134 size_t size; /* buffer size */
135 size_t n; /* number of characters in buffer */
137 char initb[LUAL_BUFFERSIZE]; /* initial buffer */
141 #define luaL_addchar(B,c) \
142 ((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \
143 ((B)->b[(B)->n++] = (c)))
145 #define luaL_addsize(B,s) ((B)->n += (s))
147 LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
148 LUALIB_API char *(luaL_prepbuffsize) (luaL_Buffer *B, size_t sz);
149 LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
150 LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
151 LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
152 LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
153 LUALIB_API void (luaL_pushresultsize) (luaL_Buffer *B, size_t sz);
154 LUALIB_API char *(luaL_buffinitsize) (lua_State *L, luaL_Buffer *B, size_t sz);
156 #define luaL_prepbuffer(B) luaL_prepbuffsize(B, LUAL_BUFFERSIZE)
158 /* }====================================================== */
161 /* compatibility with old module system */
162 #if defined(LUA_COMPAT_MODULE)
164 LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname,
166 LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname,
167 const luaL_Reg *l, int nup);
169 #define luaL_register(L,n,l) (luaL_openlib(L,(n),(l),0))