1 /* 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 5 */ 6 7 8 #ifndef lauxlib_h 9 #define lauxlib_h 10 11 12 #include <sys/zfs_context.h> 13 14 #include "lua.h" 15 16 17 18 /* extra error code for `luaL_load' */ 19 #define LUA_ERRFILE (LUA_ERRERR+1) 20 21 22 typedef struct luaL_Reg { 23 const char *name; 24 lua_CFunction func; 25 } luaL_Reg; 26 27 28 LUALIB_API void (luaL_checkversion_) (lua_State *L, lua_Number ver); 29 #define luaL_checkversion(L) luaL_checkversion_(L, LUA_VERSION_NUM) 30 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, 36 size_t *l); 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); 41 42 LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg); 43 LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg, 44 lua_Integer def); 45 LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg); 46 LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg, 47 lua_Unsigned def); 48 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); 52 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); 57 58 LUALIB_API void (luaL_where) (lua_State *L, int lvl); 59 LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...); 60 61 LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def, 62 const char *const lst[]); 63 64 /* pre-defined references */ 65 #define LUA_NOREF (-2) 66 #define LUA_REFNIL (-1) 67 68 LUALIB_API int (luaL_ref) (lua_State *L, int t); 69 LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref); 70 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); 74 75 LUALIB_API int (luaL_len) (lua_State *L, int idx); 76 77 LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p, 78 const char *r); 79 80 LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup); 81 82 LUALIB_API int (luaL_getsubtable) (lua_State *L, int idx, const char *fname); 83 84 LUALIB_API void (luaL_traceback) (lua_State *L, lua_State *L1, 85 const char *msg, int level); 86 87 LUALIB_API void (luaL_requiref) (lua_State *L, const char *modname, 88 lua_CFunction openf, int glb); 89 90 /* 91 ** =============================================================== 92 ** some useful macros 93 ** =============================================================== 94 */ 95 96 97 #define luaL_newlibtable(L,l) \ 98 lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1) 99 100 #define luaL_newlib(L,l) (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0)) 101 102 #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))) 110 111 #define luaL_typename(L,i) lua_typename(L, lua_type(L,(i))) 112 113 #define luaL_dofile(L, fn) \ 114 (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0)) 115 116 #define luaL_dostring(L, s) \ 117 (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0)) 118 119 #define luaL_getmetatable(L,n) (lua_getfield(L, LUA_REGISTRYINDEX, (n))) 120 121 #define luaL_opt(L,f,n,d) (lua_isnoneornil(L,(n)) ? (d) : f(L,(n))) 122 123 #define luaL_loadbuffer(L,s,sz,n) luaL_loadbufferx(L,s,sz,n,NULL) 124 125 126 /* 127 ** {====================================================== 128 ** Generic Buffer manipulation 129 ** ======================================================= 130 */ 131 132 typedef struct luaL_Buffer { 133 char *b; /* buffer address */ 134 size_t size; /* buffer size */ 135 size_t n; /* number of characters in buffer */ 136 lua_State *L; 137 char initb[LUAL_BUFFERSIZE]; /* initial buffer */ 138 } luaL_Buffer; 139 140 141 #define luaL_addchar(B,c) \ 142 ((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \ 143 ((B)->b[(B)->n++] = (c))) 144 145 #define luaL_addsize(B,s) ((B)->n += (s)) 146 147 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); 155 156 #define luaL_prepbuffer(B) luaL_prepbuffsize(B, LUAL_BUFFERSIZE) 157 158 /* }====================================================== */ 159 160 161 /* compatibility with old module system */ 162 #if defined(LUA_COMPAT_MODULE) 163 164 LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname, 165 int sizehint); 166 LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname, 167 const luaL_Reg *l, int nup); 168 169 #define luaL_register(L,n,l) (luaL_openlib(L,(n),(l),0)) 170 171 #endif 172 173 174 #endif 175 176 177