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
22typedef struct luaL_Reg {
23  const char *name;
24  lua_CFunction func;
25} luaL_Reg;
26
27
28LUALIB_API void (luaL_checkversion_) (lua_State *L, lua_Number ver);
29#define luaL_checkversion(L)	luaL_checkversion_(L, LUA_VERSION_NUM)
30
31LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
32LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
33LUALIB_API const char *(luaL_tolstring) (lua_State *L, int idx, size_t *len);
34LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
35LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg,
36                                                          size_t *l);
37LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg,
38                                          const char *def, size_t *l);
39LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg);
40LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def);
41
42LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
43LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
44                                          lua_Integer def);
45LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg);
46LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg,
47                                            lua_Unsigned def);
48
49LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
50LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
51LUALIB_API void (luaL_checkany) (lua_State *L, int narg);
52
53LUALIB_API int   (luaL_newmetatable) (lua_State *L, const char *tname);
54LUALIB_API void  (luaL_setmetatable) (lua_State *L, const char *tname);
55LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname);
56LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
57
58LUALIB_API void (luaL_where) (lua_State *L, int lvl);
59LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
60
61LUALIB_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
68LUALIB_API int (luaL_ref) (lua_State *L, int t);
69LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
70
71LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz,
72                                   const char *name, const char *mode);
73LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
74
75LUALIB_API int (luaL_len) (lua_State *L, int idx);
76
77LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
78                                                  const char *r);
79
80LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
81
82LUALIB_API int (luaL_getsubtable) (lua_State *L, int idx, const char *fname);
83
84LUALIB_API void (luaL_traceback) (lua_State *L, lua_State *L1,
85                                  const char *msg, int level);
86
87LUALIB_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
132typedef 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
147LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
148LUALIB_API char *(luaL_prepbuffsize) (luaL_Buffer *B, size_t sz);
149LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
150LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
151LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
152LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
153LUALIB_API void (luaL_pushresultsize) (luaL_Buffer *B, size_t sz);
154LUALIB_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
164LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname,
165                                   int sizehint);
166LUALIB_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