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comparison src/lua/lua.h @ 11:27763b933818

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raise lua sources up one level
author Robert McIntyre <rlm@mit.edu>
date Sat, 03 Mar 2012 11:07:39 -0600
parents src/lua/src/lua.h@f9f4f1b99eed
children
comparison
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10:48b74a4e4692 11:27763b933818
1 /*
2 ** $Id: lua.h,v 1.218.1.5 2008/08/06 13:30:12 roberto Exp $
3 ** Lua - An Extensible Extension Language
4 ** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
5 ** See Copyright Notice at the end of this file
6 */
7
8
9 #ifndef lua_h
10 #define lua_h
11
12 #include <stdarg.h>
13 #include <stddef.h>
14
15
16 #include "luaconf.h"
17
18
19 #define LUA_VERSION "Lua 5.1"
20 #define LUA_RELEASE "Lua 5.1.4"
21 #define LUA_VERSION_NUM 501
22 #define LUA_COPYRIGHT "Copyright (C) 1994-2008 Lua.org, PUC-Rio"
23 #define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
24
25
26 /* mark for precompiled code (`<esc>Lua') */
27 #define LUA_SIGNATURE "\033Lua"
28
29 /* option for multiple returns in `lua_pcall' and `lua_call' */
30 #define LUA_MULTRET (-1)
31
32
33 /*
34 ** pseudo-indices
35 */
36 #define LUA_REGISTRYINDEX (-10000)
37 #define LUA_ENVIRONINDEX (-10001)
38 #define LUA_GLOBALSINDEX (-10002)
39 #define lua_upvalueindex(i) (LUA_GLOBALSINDEX-(i))
40
41
42 /* thread status; 0 is OK */
43 #define LUA_YIELD 1
44 #define LUA_ERRRUN 2
45 #define LUA_ERRSYNTAX 3
46 #define LUA_ERRMEM 4
47 #define LUA_ERRERR 5
48
49
50 typedef struct lua_State lua_State;
51
52 typedef int (*lua_CFunction) (lua_State *L);
53
54
55 /*
56 ** functions that read/write blocks when loading/dumping Lua chunks
57 */
58 typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
59
60 typedef int (*lua_Writer) (lua_State *L, const void* p, size_t sz, void* ud);
61
62
63 /*
64 ** prototype for memory-allocation functions
65 */
66 typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
67
68
69 /*
70 ** basic types
71 */
72 #define LUA_TNONE (-1)
73
74 #define LUA_TNIL 0
75 #define LUA_TBOOLEAN 1
76 #define LUA_TLIGHTUSERDATA 2
77 #define LUA_TNUMBER 3
78 #define LUA_TSTRING 4
79 #define LUA_TTABLE 5
80 #define LUA_TFUNCTION 6
81 #define LUA_TUSERDATA 7
82 #define LUA_TTHREAD 8
83
84
85
86 /* minimum Lua stack available to a C function */
87 #define LUA_MINSTACK 20
88
89
90 /*
91 ** generic extra include file
92 */
93 #if defined(LUA_USER_H)
94 #include LUA_USER_H
95 #endif
96
97
98 /* type of numbers in Lua */
99 typedef LUA_NUMBER lua_Number;
100
101
102 /* type for integer functions */
103 typedef LUA_INTEGER lua_Integer;
104
105
106
107 /*
108 ** state manipulation
109 */
110 LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
111 LUA_API void (lua_close) (lua_State *L);
112 LUA_API lua_State *(lua_newthread) (lua_State *L);
113
114 LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
115
116
117 /*
118 ** basic stack manipulation
119 */
120 LUA_API int (lua_gettop) (lua_State *L);
121 LUA_API void (lua_settop) (lua_State *L, int idx);
122 LUA_API void (lua_pushvalue) (lua_State *L, int idx);
123 LUA_API void (lua_remove) (lua_State *L, int idx);
124 LUA_API void (lua_insert) (lua_State *L, int idx);
125 LUA_API void (lua_replace) (lua_State *L, int idx);
126 LUA_API int (lua_checkstack) (lua_State *L, int sz);
127
128 LUA_API void (lua_xmove) (lua_State *from, lua_State *to, int n);
129
130
131 /*
132 ** access functions (stack -> C)
133 */
134
135 LUA_API int (lua_isnumber) (lua_State *L, int idx);
136 LUA_API int (lua_isstring) (lua_State *L, int idx);
137 LUA_API int (lua_iscfunction) (lua_State *L, int idx);
138 LUA_API int (lua_isuserdata) (lua_State *L, int idx);
139 LUA_API int (lua_type) (lua_State *L, int idx);
140 LUA_API const char *(lua_typename) (lua_State *L, int tp);
141
142 LUA_API int (lua_equal) (lua_State *L, int idx1, int idx2);
143 LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
144 LUA_API int (lua_lessthan) (lua_State *L, int idx1, int idx2);
145
146 LUA_API lua_Number (lua_tonumber) (lua_State *L, int idx);
147 LUA_API lua_Integer (lua_tointeger) (lua_State *L, int idx);
148 LUA_API int (lua_toboolean) (lua_State *L, int idx);
149 LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len);
150 LUA_API size_t (lua_objlen) (lua_State *L, int idx);
151 LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx);
152 LUA_API void *(lua_touserdata) (lua_State *L, int idx);
153 LUA_API lua_State *(lua_tothread) (lua_State *L, int idx);
154 LUA_API const void *(lua_topointer) (lua_State *L, int idx);
155
156
157 /*
158 ** push functions (C -> stack)
159 */
160 LUA_API void (lua_pushnil) (lua_State *L);
161 LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n);
162 LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n);
163 LUA_API void (lua_pushlstring) (lua_State *L, const char *s, size_t l);
164 LUA_API void (lua_pushstring) (lua_State *L, const char *s);
165 LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
166 va_list argp);
167 LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
168 LUA_API void (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
169 LUA_API void (lua_pushboolean) (lua_State *L, int b);
170 LUA_API void (lua_pushlightuserdata) (lua_State *L, void *p);
171 LUA_API int (lua_pushthread) (lua_State *L);
172
173
174 /*
175 ** get functions (Lua -> stack)
176 */
177 LUA_API void (lua_gettable) (lua_State *L, int idx);
178 LUA_API void (lua_getfield) (lua_State *L, int idx, const char *k);
179 LUA_API void (lua_rawget) (lua_State *L, int idx);
180 LUA_API void (lua_rawgeti) (lua_State *L, int idx, int n);
181 LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec);
182 LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
183 LUA_API int (lua_getmetatable) (lua_State *L, int objindex);
184 LUA_API void (lua_getfenv) (lua_State *L, int idx);
185
186
187 /*
188 ** set functions (stack -> Lua)
189 */
190 LUA_API void (lua_settable) (lua_State *L, int idx);
191 LUA_API void (lua_setfield) (lua_State *L, int idx, const char *k);
192 LUA_API void (lua_rawset) (lua_State *L, int idx);
193 LUA_API void (lua_rawseti) (lua_State *L, int idx, int n);
194 LUA_API int (lua_setmetatable) (lua_State *L, int objindex);
195 LUA_API int (lua_setfenv) (lua_State *L, int idx);
196
197
198 /*
199 ** `load' and `call' functions (load and run Lua code)
200 */
201 LUA_API void (lua_call) (lua_State *L, int nargs, int nresults);
202 LUA_API int (lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
203 LUA_API int (lua_cpcall) (lua_State *L, lua_CFunction func, void *ud);
204 LUA_API int (lua_load) (lua_State *L, lua_Reader reader, void *dt,
205 const char *chunkname);
206
207 LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data);
208
209
210 /*
211 ** coroutine functions
212 */
213 LUA_API int (lua_yield) (lua_State *L, int nresults);
214 LUA_API int (lua_resume) (lua_State *L, int narg);
215 LUA_API int (lua_status) (lua_State *L);
216
217 /*
218 ** garbage-collection function and options
219 */
220
221 #define LUA_GCSTOP 0
222 #define LUA_GCRESTART 1
223 #define LUA_GCCOLLECT 2
224 #define LUA_GCCOUNT 3
225 #define LUA_GCCOUNTB 4
226 #define LUA_GCSTEP 5
227 #define LUA_GCSETPAUSE 6
228 #define LUA_GCSETSTEPMUL 7
229
230 LUA_API int (lua_gc) (lua_State *L, int what, int data);
231
232
233 /*
234 ** miscellaneous functions
235 */
236
237 LUA_API int (lua_error) (lua_State *L);
238
239 LUA_API int (lua_next) (lua_State *L, int idx);
240
241 LUA_API void (lua_concat) (lua_State *L, int n);
242
243 LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
244 LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
245
246
247
248 /*
249 ** ===============================================================
250 ** some useful macros
251 ** ===============================================================
252 */
253
254 #define lua_pop(L,n) lua_settop(L, -(n)-1)
255
256 #define lua_newtable(L) lua_createtable(L, 0, 0)
257
258 #define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
259
260 #define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0)
261
262 #define lua_strlen(L,i) lua_objlen(L, (i))
263
264 #define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION)
265 #define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE)
266 #define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
267 #define lua_isnil(L,n) (lua_type(L, (n)) == LUA_TNIL)
268 #define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN)
269 #define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD)
270 #define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE)
271 #define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)
272
273 #define lua_pushliteral(L, s) \
274 lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
275
276 #define lua_setglobal(L,s) lua_setfield(L, LUA_GLOBALSINDEX, (s))
277 #define lua_getglobal(L,s) lua_getfield(L, LUA_GLOBALSINDEX, (s))
278
279 #define lua_tostring(L,i) lua_tolstring(L, (i), NULL)
280
281
282
283 /*
284 ** compatibility macros and functions
285 */
286
287 #define lua_open() luaL_newstate()
288
289 #define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX)
290
291 #define lua_getgccount(L) lua_gc(L, LUA_GCCOUNT, 0)
292
293 #define lua_Chunkreader lua_Reader
294 #define lua_Chunkwriter lua_Writer
295
296
297 /* hack */
298 LUA_API void lua_setlevel (lua_State *from, lua_State *to);
299
300
301 /*
302 ** {======================================================================
303 ** Debug API
304 ** =======================================================================
305 */
306
307
308 /*
309 ** Event codes
310 */
311 #define LUA_HOOKCALL 0
312 #define LUA_HOOKRET 1
313 #define LUA_HOOKLINE 2
314 #define LUA_HOOKCOUNT 3
315 #define LUA_HOOKTAILRET 4
316
317
318 /*
319 ** Event masks
320 */
321 #define LUA_MASKCALL (1 << LUA_HOOKCALL)
322 #define LUA_MASKRET (1 << LUA_HOOKRET)
323 #define LUA_MASKLINE (1 << LUA_HOOKLINE)
324 #define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT)
325
326 typedef struct lua_Debug lua_Debug; /* activation record */
327
328
329 /* Functions to be called by the debuger in specific events */
330 typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
331
332
333 LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar);
334 LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
335 LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
336 LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
337 LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n);
338 LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n);
339
340 LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count);
341 LUA_API lua_Hook lua_gethook (lua_State *L);
342 LUA_API int lua_gethookmask (lua_State *L);
343 LUA_API int lua_gethookcount (lua_State *L);
344
345
346 struct lua_Debug {
347 int event;
348 const char *name; /* (n) */
349 const char *namewhat; /* (n) `global', `local', `field', `method' */
350 const char *what; /* (S) `Lua', `C', `main', `tail' */
351 const char *source; /* (S) */
352 int currentline; /* (l) */
353 int nups; /* (u) number of upvalues */
354 int linedefined; /* (S) */
355 int lastlinedefined; /* (S) */
356 char short_src[LUA_IDSIZE]; /* (S) */
357 /* private part */
358 int i_ci; /* active function */
359 };
360
361 /* }====================================================================== */
362
363
364 /******************************************************************************
365 * Copyright (C) 1994-2008 Lua.org, PUC-Rio. All rights reserved.
366 *
367 * Permission is hereby granted, free of charge, to any person obtaining
368 * a copy of this software and associated documentation files (the
369 * "Software"), to deal in the Software without restriction, including
370 * without limitation the rights to use, copy, modify, merge, publish,
371 * distribute, sublicense, and/or sell copies of the Software, and to
372 * permit persons to whom the Software is furnished to do so, subject to
373 * the following conditions:
374 *
375 * The above copyright notice and this permission notice shall be
376 * included in all copies or substantial portions of the Software.
377 *
378 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
379 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
380 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
381 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
382 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
383 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
384 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
385 ******************************************************************************/
386
387
388 #endif