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-rw-r--r--src/lua-5.3/lua.h486
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diff --git a/src/lua-5.3/lua.h b/src/lua-5.3/lua.h
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1/*
2** $Id: lua.h,v 1.332.1.2 2018/06/13 16:58:17 roberto Exp $
3** Lua - A Scripting 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_MAJOR "5"
20#define LUA_VERSION_MINOR "3"
21#define LUA_VERSION_NUM 503
22#define LUA_VERSION_RELEASE "5"
23
24#define LUA_VERSION "Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
25#define LUA_RELEASE LUA_VERSION "." LUA_VERSION_RELEASE
26#define LUA_COPYRIGHT LUA_RELEASE " Copyright (C) 1994-2018 Lua.org, PUC-Rio"
27#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo, W. Celes"
28
29
30/* mark for precompiled code ('<esc>Lua') */
31#define LUA_SIGNATURE "\x1bLua"
32
33/* option for multiple returns in 'lua_pcall' and 'lua_call' */
34#define LUA_MULTRET (-1)
35
36
37/*
38** Pseudo-indices
39** (-LUAI_MAXSTACK is the minimum valid index; we keep some free empty
40** space after that to help overflow detection)
41*/
42#define LUA_REGISTRYINDEX (-LUAI_MAXSTACK - 1000)
43#define lua_upvalueindex(i) (LUA_REGISTRYINDEX - (i))
44
45
46/* thread status */
47#define LUA_OK 0
48#define LUA_YIELD 1
49#define LUA_ERRRUN 2
50#define LUA_ERRSYNTAX 3
51#define LUA_ERRMEM 4
52#define LUA_ERRGCMM 5
53#define LUA_ERRERR 6
54
55
56typedef struct lua_State lua_State;
57
58
59/*
60** basic types
61*/
62#define LUA_TNONE (-1)
63
64#define LUA_TNIL 0
65#define LUA_TBOOLEAN 1
66#define LUA_TLIGHTUSERDATA 2
67#define LUA_TNUMBER 3
68#define LUA_TSTRING 4
69#define LUA_TTABLE 5
70#define LUA_TFUNCTION 6
71#define LUA_TUSERDATA 7
72#define LUA_TTHREAD 8
73
74#define LUA_NUMTAGS 9
75
76
77
78/* minimum Lua stack available to a C function */
79#define LUA_MINSTACK 20
80
81
82/* predefined values in the registry */
83#define LUA_RIDX_MAINTHREAD 1
84#define LUA_RIDX_GLOBALS 2
85#define LUA_RIDX_LAST LUA_RIDX_GLOBALS
86
87
88/* type of numbers in Lua */
89typedef LUA_NUMBER lua_Number;
90
91
92/* type for integer functions */
93typedef LUA_INTEGER lua_Integer;
94
95/* unsigned integer type */
96typedef LUA_UNSIGNED lua_Unsigned;
97
98/* type for continuation-function contexts */
99typedef LUA_KCONTEXT lua_KContext;
100
101
102/*
103** Type for C functions registered with Lua
104*/
105typedef int (*lua_CFunction) (lua_State *L);
106
107/*
108** Type for continuation functions
109*/
110typedef int (*lua_KFunction) (lua_State *L, int status, lua_KContext ctx);
111
112
113/*
114** Type for functions that read/write blocks when loading/dumping Lua chunks
115*/
116typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
117
118typedef int (*lua_Writer) (lua_State *L, const void *p, size_t sz, void *ud);
119
120
121/*
122** Type for memory-allocation functions
123*/
124typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
125
126
127
128/*
129** generic extra include file
130*/
131#if defined(LUA_USER_H)
132#include LUA_USER_H
133#endif
134
135
136/*
137** RCS ident string
138*/
139extern const char lua_ident[];
140
141
142/*
143** state manipulation
144*/
145LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
146LUA_API void (lua_close) (lua_State *L);
147LUA_API lua_State *(lua_newthread) (lua_State *L);
148
149LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
150
151
152LUA_API const lua_Number *(lua_version) (lua_State *L);
153
154
155/*
156** basic stack manipulation
157*/
158LUA_API int (lua_absindex) (lua_State *L, int idx);
159LUA_API int (lua_gettop) (lua_State *L);
160LUA_API void (lua_settop) (lua_State *L, int idx);
161LUA_API void (lua_pushvalue) (lua_State *L, int idx);
162LUA_API void (lua_rotate) (lua_State *L, int idx, int n);
163LUA_API void (lua_copy) (lua_State *L, int fromidx, int toidx);
164LUA_API int (lua_checkstack) (lua_State *L, int n);
165
166LUA_API void (lua_xmove) (lua_State *from, lua_State *to, int n);
167
168
169/*
170** access functions (stack -> C)
171*/
172
173LUA_API int (lua_isnumber) (lua_State *L, int idx);
174LUA_API int (lua_isstring) (lua_State *L, int idx);
175LUA_API int (lua_iscfunction) (lua_State *L, int idx);
176LUA_API int (lua_isinteger) (lua_State *L, int idx);
177LUA_API int (lua_isuserdata) (lua_State *L, int idx);
178LUA_API int (lua_type) (lua_State *L, int idx);
179LUA_API const char *(lua_typename) (lua_State *L, int tp);
180
181LUA_API lua_Number (lua_tonumberx) (lua_State *L, int idx, int *isnum);
182LUA_API lua_Integer (lua_tointegerx) (lua_State *L, int idx, int *isnum);
183LUA_API int (lua_toboolean) (lua_State *L, int idx);
184LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len);
185LUA_API size_t (lua_rawlen) (lua_State *L, int idx);
186LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx);
187LUA_API void *(lua_touserdata) (lua_State *L, int idx);
188LUA_API lua_State *(lua_tothread) (lua_State *L, int idx);
189LUA_API const void *(lua_topointer) (lua_State *L, int idx);
190
191
192/*
193** Comparison and arithmetic functions
194*/
195
196#define LUA_OPADD 0 /* ORDER TM, ORDER OP */
197#define LUA_OPSUB 1
198#define LUA_OPMUL 2
199#define LUA_OPMOD 3
200#define LUA_OPPOW 4
201#define LUA_OPDIV 5
202#define LUA_OPIDIV 6
203#define LUA_OPBAND 7
204#define LUA_OPBOR 8
205#define LUA_OPBXOR 9
206#define LUA_OPSHL 10
207#define LUA_OPSHR 11
208#define LUA_OPUNM 12
209#define LUA_OPBNOT 13
210
211LUA_API void (lua_arith) (lua_State *L, int op);
212
213#define LUA_OPEQ 0
214#define LUA_OPLT 1
215#define LUA_OPLE 2
216
217LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
218LUA_API int (lua_compare) (lua_State *L, int idx1, int idx2, int op);
219
220
221/*
222** push functions (C -> stack)
223*/
224LUA_API void (lua_pushnil) (lua_State *L);
225LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n);
226LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n);
227LUA_API const char *(lua_pushlstring) (lua_State *L, const char *s, size_t len);
228LUA_API const char *(lua_pushstring) (lua_State *L, const char *s);
229LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
230 va_list argp);
231LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
232LUA_API void (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
233LUA_API void (lua_pushboolean) (lua_State *L, int b);
234LUA_API void (lua_pushlightuserdata) (lua_State *L, void *p);
235LUA_API int (lua_pushthread) (lua_State *L);
236
237
238/*
239** get functions (Lua -> stack)
240*/
241LUA_API int (lua_getglobal) (lua_State *L, const char *name);
242LUA_API int (lua_gettable) (lua_State *L, int idx);
243LUA_API int (lua_getfield) (lua_State *L, int idx, const char *k);
244LUA_API int (lua_geti) (lua_State *L, int idx, lua_Integer n);
245LUA_API int (lua_rawget) (lua_State *L, int idx);
246LUA_API int (lua_rawgeti) (lua_State *L, int idx, lua_Integer n);
247LUA_API int (lua_rawgetp) (lua_State *L, int idx, const void *p);
248
249LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec);
250LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
251LUA_API int (lua_getmetatable) (lua_State *L, int objindex);
252LUA_API int (lua_getuservalue) (lua_State *L, int idx);
253
254
255/*
256** set functions (stack -> Lua)
257*/
258LUA_API void (lua_setglobal) (lua_State *L, const char *name);
259LUA_API void (lua_settable) (lua_State *L, int idx);
260LUA_API void (lua_setfield) (lua_State *L, int idx, const char *k);
261LUA_API void (lua_seti) (lua_State *L, int idx, lua_Integer n);
262LUA_API void (lua_rawset) (lua_State *L, int idx);
263LUA_API void (lua_rawseti) (lua_State *L, int idx, lua_Integer n);
264LUA_API void (lua_rawsetp) (lua_State *L, int idx, const void *p);
265LUA_API int (lua_setmetatable) (lua_State *L, int objindex);
266LUA_API void (lua_setuservalue) (lua_State *L, int idx);
267
268
269/*
270** 'load' and 'call' functions (load and run Lua code)
271*/
272LUA_API void (lua_callk) (lua_State *L, int nargs, int nresults,
273 lua_KContext ctx, lua_KFunction k);
274#define lua_call(L,n,r) lua_callk(L, (n), (r), 0, NULL)
275
276LUA_API int (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
277 lua_KContext ctx, lua_KFunction k);
278#define lua_pcall(L,n,r,f) lua_pcallk(L, (n), (r), (f), 0, NULL)
279
280LUA_API int (lua_load) (lua_State *L, lua_Reader reader, void *dt,
281 const char *chunkname, const char *mode);
282
283LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data, int strip);
284
285
286/*
287** coroutine functions
288*/
289LUA_API int (lua_yieldk) (lua_State *L, int nresults, lua_KContext ctx,
290 lua_KFunction k);
291LUA_API int (lua_resume) (lua_State *L, lua_State *from, int narg);
292LUA_API int (lua_status) (lua_State *L);
293LUA_API int (lua_isyieldable) (lua_State *L);
294
295#define lua_yield(L,n) lua_yieldk(L, (n), 0, NULL)
296
297
298/*
299** garbage-collection function and options
300*/
301
302#define LUA_GCSTOP 0
303#define LUA_GCRESTART 1
304#define LUA_GCCOLLECT 2
305#define LUA_GCCOUNT 3
306#define LUA_GCCOUNTB 4
307#define LUA_GCSTEP 5
308#define LUA_GCSETPAUSE 6
309#define LUA_GCSETSTEPMUL 7
310#define LUA_GCISRUNNING 9
311
312LUA_API int (lua_gc) (lua_State *L, int what, int data);
313
314
315/*
316** miscellaneous functions
317*/
318
319LUA_API int (lua_error) (lua_State *L);
320
321LUA_API int (lua_next) (lua_State *L, int idx);
322
323LUA_API void (lua_concat) (lua_State *L, int n);
324LUA_API void (lua_len) (lua_State *L, int idx);
325
326LUA_API size_t (lua_stringtonumber) (lua_State *L, const char *s);
327
328LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
329LUA_API void (lua_setallocf) (lua_State *L, lua_Alloc f, void *ud);
330
331
332
333/*
334** {==============================================================
335** some useful macros
336** ===============================================================
337*/
338
339#define lua_getextraspace(L) ((void *)((char *)(L) - LUA_EXTRASPACE))
340
341#define lua_tonumber(L,i) lua_tonumberx(L,(i),NULL)
342#define lua_tointeger(L,i) lua_tointegerx(L,(i),NULL)
343
344#define lua_pop(L,n) lua_settop(L, -(n)-1)
345
346#define lua_newtable(L) lua_createtable(L, 0, 0)
347
348#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
349
350#define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0)
351
352#define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION)
353#define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE)
354#define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
355#define lua_isnil(L,n) (lua_type(L, (n)) == LUA_TNIL)
356#define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN)
357#define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD)
358#define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE)
359#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)
360
361#define lua_pushliteral(L, s) lua_pushstring(L, "" s)
362
363#define lua_pushglobaltable(L) \
364 ((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))
365
366#define lua_tostring(L,i) lua_tolstring(L, (i), NULL)
367
368
369#define lua_insert(L,idx) lua_rotate(L, (idx), 1)
370
371#define lua_remove(L,idx) (lua_rotate(L, (idx), -1), lua_pop(L, 1))
372
373#define lua_replace(L,idx) (lua_copy(L, -1, (idx)), lua_pop(L, 1))
374
375/* }============================================================== */
376
377
378/*
379** {==============================================================
380** compatibility macros for unsigned conversions
381** ===============================================================
382*/
383#if defined(LUA_COMPAT_APIINTCASTS)
384
385#define lua_pushunsigned(L,n) lua_pushinteger(L, (lua_Integer)(n))
386#define lua_tounsignedx(L,i,is) ((lua_Unsigned)lua_tointegerx(L,i,is))
387#define lua_tounsigned(L,i) lua_tounsignedx(L,(i),NULL)
388
389#endif
390/* }============================================================== */
391
392/*
393** {======================================================================
394** Debug API
395** =======================================================================
396*/
397
398
399/*
400** Event codes
401*/
402#define LUA_HOOKCALL 0
403#define LUA_HOOKRET 1
404#define LUA_HOOKLINE 2
405#define LUA_HOOKCOUNT 3
406#define LUA_HOOKTAILCALL 4
407
408
409/*
410** Event masks
411*/
412#define LUA_MASKCALL (1 << LUA_HOOKCALL)
413#define LUA_MASKRET (1 << LUA_HOOKRET)
414#define LUA_MASKLINE (1 << LUA_HOOKLINE)
415#define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT)
416
417typedef struct lua_Debug lua_Debug; /* activation record */
418
419
420/* Functions to be called by the debugger in specific events */
421typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
422
423
424LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar);
425LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar);
426LUA_API const char *(lua_getlocal) (lua_State *L, const lua_Debug *ar, int n);
427LUA_API const char *(lua_setlocal) (lua_State *L, const lua_Debug *ar, int n);
428LUA_API const char *(lua_getupvalue) (lua_State *L, int funcindex, int n);
429LUA_API const char *(lua_setupvalue) (lua_State *L, int funcindex, int n);
430
431LUA_API void *(lua_upvalueid) (lua_State *L, int fidx, int n);
432LUA_API void (lua_upvaluejoin) (lua_State *L, int fidx1, int n1,
433 int fidx2, int n2);
434
435LUA_API void (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count);
436LUA_API lua_Hook (lua_gethook) (lua_State *L);
437LUA_API int (lua_gethookmask) (lua_State *L);
438LUA_API int (lua_gethookcount) (lua_State *L);
439
440
441struct lua_Debug {
442 int event;
443 const char *name; /* (n) */
444 const char *namewhat; /* (n) 'global', 'local', 'field', 'method' */
445 const char *what; /* (S) 'Lua', 'C', 'main', 'tail' */
446 const char *source; /* (S) */
447 int currentline; /* (l) */
448 int linedefined; /* (S) */
449 int lastlinedefined; /* (S) */
450 unsigned char nups; /* (u) number of upvalues */
451 unsigned char nparams;/* (u) number of parameters */
452 char isvararg; /* (u) */
453 char istailcall; /* (t) */
454 char short_src[LUA_IDSIZE]; /* (S) */
455 /* private part */
456 struct CallInfo *i_ci; /* active function */
457};
458
459/* }====================================================================== */
460
461
462/******************************************************************************
463* Copyright (C) 1994-2018 Lua.org, PUC-Rio.
464*
465* Permission is hereby granted, free of charge, to any person obtaining
466* a copy of this software and associated documentation files (the
467* "Software"), to deal in the Software without restriction, including
468* without limitation the rights to use, copy, modify, merge, publish,
469* distribute, sublicense, and/or sell copies of the Software, and to
470* permit persons to whom the Software is furnished to do so, subject to
471* the following conditions:
472*
473* The above copyright notice and this permission notice shall be
474* included in all copies or substantial portions of the Software.
475*
476* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
477* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
478* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
479* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
480* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
481* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
482* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
483******************************************************************************/
484
485
486#endif
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