aboutsummaryrefslogtreecommitdiffstats
path: root/vendor/compat53/c-api/compat-5.3.h
blob: b730a4b8af46a110c7f7ef6e0f219dbcb5aa9178 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
#ifndef COMPAT53_H_
#define COMPAT53_H_

#include <stddef.h>
#include <limits.h>
#include <string.h>
#if defined(__cplusplus) && !defined(COMPAT53_LUA_CPP)
extern "C" {
#endif
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
#if defined(__cplusplus) && !defined(COMPAT53_LUA_CPP)
}
#endif


#undef COMPAT53_INCLUDE_SOURCE
#if defined(COMPAT53_PREFIX)
/* - change the symbol names of functions to avoid linker conflicts
 * - compat-5.3.c needs to be compiled (and linked) separately
 */
#  if !defined(COMPAT53_API)
#    define COMPAT53_API extern
#  endif
#else /* COMPAT53_PREFIX */
/* - make all functions static and include the source.
 * - compat-5.3.c doesn't need to be compiled (and linked) separately
 */
#  define COMPAT53_PREFIX compat53
#  undef COMPAT53_API
#  if defined(__GNUC__) || defined(__clang__)
#    define COMPAT53_API __attribute__((__unused__)) static
#  else
#    define COMPAT53_API static
#  endif
#  define COMPAT53_INCLUDE_SOURCE
#endif /* COMPAT53_PREFIX */

#define COMPAT53_CONCAT_HELPER(a, b) a##b
#define COMPAT53_CONCAT(a, b) COMPAT53_CONCAT_HELPER(a, b)



/* declarations for Lua 5.1 */
#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM == 501

/* XXX not implemented:
 * lua_arith (new operators)
 * lua_upvalueid
 * lua_upvaluejoin
 * lua_version
 * lua_yieldk
 */

#ifndef LUA_OK
#  define LUA_OK 0
#endif
#ifndef LUA_OPADD
#  define LUA_OPADD 0
#endif
#ifndef LUA_OPSUB
#  define LUA_OPSUB 1
#endif
#ifndef LUA_OPMUL
#  define LUA_OPMUL 2
#endif
#ifndef LUA_OPDIV
#  define LUA_OPDIV 3
#endif
#ifndef LUA_OPMOD
#  define LUA_OPMOD 4
#endif
#ifndef LUA_OPPOW
#  define LUA_OPPOW 5
#endif
#ifndef LUA_OPUNM
#  define LUA_OPUNM 6
#endif
#ifndef LUA_OPEQ
#  define LUA_OPEQ 0
#endif
#ifndef LUA_OPLT
#  define LUA_OPLT 1
#endif
#ifndef LUA_OPLE
#  define LUA_OPLE 2
#endif

/* LuaJIT/Lua 5.1 does not have the updated
 * error codes for thread status/function returns (but some patched versions do)
 * define it only if it's not found
 */
#if !defined(LUA_ERRGCMM)
/* Use + 2 because in some versions of Lua (Lua 5.1)
 * LUA_ERRFILE is defined as (LUA_ERRERR+1)
 * so we need to avoid it (LuaJIT might have something at this
 * integer value too)
 */
#  define LUA_ERRGCMM (LUA_ERRERR + 2)
#endif /* LUA_ERRGCMM define */

typedef size_t lua_Unsigned;

typedef struct luaL_Buffer_53 {
  luaL_Buffer b; /* make incorrect code crash! */
  char *ptr;
  size_t nelems;
  size_t capacity;
  lua_State *L2;
} luaL_Buffer_53;
#define luaL_Buffer luaL_Buffer_53

/* In PUC-Rio 5.1, userdata is a simple FILE*
 * In LuaJIT, it's a struct where the first member is a FILE*
 * We can't support the `closef` member
 */
typedef struct luaL_Stream {
  FILE *f;
} luaL_Stream;

#define lua_absindex COMPAT53_CONCAT(COMPAT53_PREFIX, _absindex)
COMPAT53_API int lua_absindex (lua_State *L, int i);

#define lua_arith COMPAT53_CONCAT(COMPAT53_PREFIX, _arith)
COMPAT53_API void lua_arith (lua_State *L, int op);

#define lua_compare COMPAT53_CONCAT(COMPAT53_PREFIX, _compare)
COMPAT53_API int lua_compare (lua_State *L, int idx1, int idx2, int op);

#define lua_copy COMPAT53_CONCAT(COMPAT53_PREFIX, _copy)
COMPAT53_API void lua_copy (lua_State *L, int from, int to);

#define lua_getuservalue(L, i) \
  (lua_getfenv((L), (i)), lua_type((L), -1))
#define lua_setuservalue(L, i) \
  (luaL_checktype((L), -1, LUA_TTABLE), lua_setfenv((L), (i)))

#define lua_len COMPAT53_CONCAT(COMPAT53_PREFIX, _len)
COMPAT53_API void lua_len (lua_State *L, int i);

#define lua_pushstring(L, s) \
  (lua_pushstring((L), (s)), lua_tostring((L), -1))

#define lua_pushlstring(L, s, len) \
  ((((len) == 0) ? lua_pushlstring((L), "", 0) : lua_pushlstring((L), (s), (len))), lua_tostring((L), -1))

#ifndef luaL_newlibtable
#  define luaL_newlibtable(L, l) \
  (lua_createtable((L), 0, sizeof((l))/sizeof(*(l))-1))
#endif
#ifndef luaL_newlib
#  define luaL_newlib(L, l) \
  (luaL_newlibtable((L), (l)), luaL_register((L), NULL, (l)))
#endif

#define lua_pushglobaltable(L) \
  lua_pushvalue((L), LUA_GLOBALSINDEX)

#define lua_rawgetp COMPAT53_CONCAT(COMPAT53_PREFIX, _rawgetp)
COMPAT53_API int lua_rawgetp (lua_State *L, int i, const void *p);

#define lua_rawsetp COMPAT53_CONCAT(COMPAT53_PREFIX, _rawsetp)
COMPAT53_API void lua_rawsetp(lua_State *L, int i, const void *p);

#define lua_rawlen(L, i) lua_objlen((L), (i))

#define lua_tointeger(L, i) lua_tointegerx((L), (i), NULL)

#define lua_tonumberx COMPAT53_CONCAT(COMPAT53_PREFIX, _tonumberx)
COMPAT53_API lua_Number lua_tonumberx (lua_State *L, int i, int *isnum);

#define luaL_checkversion COMPAT53_CONCAT(COMPAT53_PREFIX, L_checkversion)
COMPAT53_API void luaL_checkversion (lua_State *L);

#define lua_load COMPAT53_CONCAT(COMPAT53_PREFIX, _load_53)
COMPAT53_API int lua_load (lua_State *L, lua_Reader reader, void *data, const char* source, const char* mode);

#define luaL_loadfilex COMPAT53_CONCAT(COMPAT53_PREFIX, L_loadfilex)
COMPAT53_API int luaL_loadfilex (lua_State *L, const char *filename, const char *mode);

#define luaL_loadbufferx COMPAT53_CONCAT(COMPAT53_PREFIX, L_loadbufferx)
COMPAT53_API int luaL_loadbufferx (lua_State *L, const char *buff, size_t sz, const char *name, const char *mode);

#define luaL_checkstack COMPAT53_CONCAT(COMPAT53_PREFIX, L_checkstack_53)
COMPAT53_API void luaL_checkstack (lua_State *L, int sp, const char *msg);

#define luaL_getsubtable COMPAT53_CONCAT(COMPAT53_PREFIX, L_getsubtable)
COMPAT53_API int luaL_getsubtable (lua_State* L, int i, const char *name);

#define luaL_len COMPAT53_CONCAT(COMPAT53_PREFIX, L_len)
COMPAT53_API lua_Integer luaL_len (lua_State *L, int i);

#define luaL_setfuncs COMPAT53_CONCAT(COMPAT53_PREFIX, L_setfuncs)
COMPAT53_API void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup);

#define luaL_setmetatable COMPAT53_CONCAT(COMPAT53_PREFIX, L_setmetatable)
COMPAT53_API void luaL_setmetatable (lua_State *L, const char *tname);

#define luaL_testudata COMPAT53_CONCAT(COMPAT53_PREFIX, L_testudata)
COMPAT53_API void *luaL_testudata (lua_State *L, int i, const char *tname);

#define luaL_traceback COMPAT53_CONCAT(COMPAT53_PREFIX, L_traceback)
COMPAT53_API void luaL_traceback (lua_State *L, lua_State *L1, const char *msg, int level);

#define luaL_fileresult COMPAT53_CONCAT(COMPAT53_PREFIX, L_fileresult)
COMPAT53_API int luaL_fileresult (lua_State *L, int stat, const char *fname);

#define luaL_execresult COMPAT53_CONCAT(COMPAT53_PREFIX, L_execresult)
COMPAT53_API int luaL_execresult (lua_State *L, int stat);

#define lua_callk(L, na, nr, ctx, cont) \
  ((void)(ctx), (void)(cont), lua_call((L), (na), (nr)))
#define lua_pcallk(L, na, nr, err, ctx, cont) \
  ((void)(ctx), (void)(cont), lua_pcall((L), (na), (nr), (err)))

#define lua_resume(L, from, nargs) \
  ((void)(from), lua_resume((L), (nargs)))

#define luaL_buffinit COMPAT53_CONCAT(COMPAT53_PREFIX, _buffinit_53)
COMPAT53_API void luaL_buffinit (lua_State *L, luaL_Buffer_53 *B);

#define luaL_prepbuffsize COMPAT53_CONCAT(COMPAT53_PREFIX, _prepbufsize_53)
COMPAT53_API char *luaL_prepbuffsize (luaL_Buffer_53 *B, size_t s);

#define luaL_addlstring COMPAT53_CONCAT(COMPAT53_PREFIX, _addlstring_53)
COMPAT53_API void luaL_addlstring (luaL_Buffer_53 *B, const char *s, size_t l);

#define luaL_addvalue COMPAT53_CONCAT(COMPAT53_PREFIX, _addvalue_53)
COMPAT53_API void luaL_addvalue (luaL_Buffer_53 *B);

#define luaL_pushresult COMPAT53_CONCAT(COMPAT53_PREFIX, _pushresult_53)
COMPAT53_API void luaL_pushresult (luaL_Buffer_53 *B);

#undef luaL_buffinitsize
#define luaL_buffinitsize(L, B, s) \
  (luaL_buffinit((L), (B)), luaL_prepbuffsize((B), (s)))

#undef luaL_prepbuffer
#define luaL_prepbuffer(B) \
  luaL_prepbuffsize((B), LUAL_BUFFERSIZE)

#undef luaL_addchar
#define luaL_addchar(B, c) \
  ((void)((B)->nelems < (B)->capacity || luaL_prepbuffsize((B), 1)), \
   ((B)->ptr[(B)->nelems++] = (c)))

#undef luaL_addsize
#define luaL_addsize(B, s) \
  ((B)->nelems += (s))

#undef luaL_addstring
#define luaL_addstring(B, s) \
  luaL_addlstring((B), (s), strlen((s)))

#undef luaL_pushresultsize
#define luaL_pushresultsize(B, s) \
  (luaL_addsize((B), (s)), luaL_pushresult((B)))

#if defined(LUA_COMPAT_APIINTCASTS)
#define lua_pushunsigned(L, n) \
  lua_pushinteger((L), (lua_Integer)(n))
#define lua_tounsignedx(L, i, is) \
  ((lua_Unsigned)lua_tointegerx((L), (i), (is)))
#define lua_tounsigned(L, i) \
  lua_tounsignedx((L), (i), NULL)
#define luaL_checkunsigned(L, a) \
  ((lua_Unsigned)luaL_checkinteger((L), (a)))
#define luaL_optunsigned(L, a, d) \
  ((lua_Unsigned)luaL_optinteger((L), (a), (lua_Integer)(d)))
#endif

#endif /* Lua 5.1 only */



/* declarations for Lua 5.1 and 5.2 */
#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM <= 502

typedef int lua_KContext;

typedef int (*lua_KFunction)(lua_State *L, int status, lua_KContext ctx);

#define lua_dump(L, w, d, s) \
  ((void)(s), lua_dump((L), (w), (d)))

#define lua_getfield(L, i, k) \
  (lua_getfield((L), (i), (k)), lua_type((L), -1))

#define lua_gettable(L, i) \
  (lua_gettable((L), (i)), lua_type((L), -1))

#define lua_geti COMPAT53_CONCAT(COMPAT53_PREFIX, _geti)
COMPAT53_API int lua_geti (lua_State *L, int index, lua_Integer i);

#define lua_getextraspace COMPAT53_CONCAT(COMPAT53_PREFIX, _getextraspace)
COMPAT53_API void *lua_getextraspace (lua_State *L);

#define lua_isinteger COMPAT53_CONCAT(COMPAT53_PREFIX, _isinteger)
COMPAT53_API int lua_isinteger (lua_State *L, int index);

#define lua_tointegerx COMPAT53_CONCAT(COMPAT53_PREFIX, _tointegerx_53)
COMPAT53_API lua_Integer lua_tointegerx (lua_State *L, int i, int *isnum);

#define lua_numbertointeger(n, p) \
  ((*(p) = (lua_Integer)(n)), 1)

#define lua_rawget(L, i) \
  (lua_rawget((L), (i)), lua_type((L), -1))

#define lua_rawgeti(L, i, n) \
  (lua_rawgeti((L), (i), (n)), lua_type((L), -1))

#define lua_rotate COMPAT53_CONCAT(COMPAT53_PREFIX, _rotate)
COMPAT53_API void lua_rotate (lua_State *L, int idx, int n);

#define lua_seti COMPAT53_CONCAT(COMPAT53_PREFIX, _seti)
COMPAT53_API void lua_seti (lua_State *L, int index, lua_Integer i);

#define lua_stringtonumber COMPAT53_CONCAT(COMPAT53_PREFIX, _stringtonumber)
COMPAT53_API size_t lua_stringtonumber (lua_State *L, const char *s);

#define luaL_tolstring COMPAT53_CONCAT(COMPAT53_PREFIX, L_tolstring)
COMPAT53_API const char *luaL_tolstring (lua_State *L, int idx, size_t *len);

#define luaL_getmetafield(L, o, e) \
  (luaL_getmetafield((L), (o), (e)) ? lua_type((L), -1) : LUA_TNIL)

#define luaL_newmetatable(L, tn) \
  (luaL_newmetatable((L), (tn)) ? (lua_pushstring((L), (tn)), lua_setfield((L), -2, "__name"), 1) : 0)

#define luaL_requiref COMPAT53_CONCAT(COMPAT53_PREFIX, L_requiref_53)
COMPAT53_API void luaL_requiref (lua_State *L, const char *modname,
                                 lua_CFunction openf, int glb );

#endif /* Lua 5.1 and Lua 5.2 */



/* declarations for Lua 5.2 */
#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM == 502

/* XXX not implemented:
 * lua_isyieldable
 * lua_arith (new operators)
 * lua_pushfstring (new formats)
 */

#define lua_getglobal(L, n) \
  (lua_getglobal((L), (n)), lua_type((L), -1))

#define lua_getuservalue(L, i) \
  (lua_getuservalue((L), (i)), lua_type((L), -1))

#define lua_pushlstring(L, s, len) \
  (((len) == 0) ? lua_pushlstring((L), "", 0) : lua_pushlstring((L), (s), (len)))

#define lua_rawgetp(L, i, p) \
  (lua_rawgetp((L), (i), (p)), lua_type((L), -1))

#define LUA_KFUNCTION(_name) \
  static int (_name)(lua_State *L, int status, lua_KContext ctx); \
  static int (_name ## _52)(lua_State *L) { \
    lua_KContext ctx; \
    int status = lua_getctx(L, &ctx); \
    return (_name)(L, status, ctx); \
  } \
  static int (_name)(lua_State *L, int status, lua_KContext ctx)

#define lua_pcallk(L, na, nr, err, ctx, cont) \
  lua_pcallk((L), (na), (nr), (err), (ctx), cont ## _52)

#define lua_callk(L, na, nr, ctx, cont) \
  lua_callk((L), (na), (nr), (ctx), cont ## _52)

#define lua_yieldk(L, nr, ctx, cont) \
  lua_yieldk((L), (nr), (ctx), cont ## _52)

#ifdef lua_call
#  undef lua_call
#  define lua_call(L, na, nr) \
  (lua_callk)((L), (na), (nr), 0, NULL)
#endif

#ifdef lua_pcall
#  undef lua_pcall
#  define lua_pcall(L, na, nr, err) \
  (lua_pcallk)((L), (na), (nr), (err), 0, NULL)
#endif

#ifdef lua_yield
#  undef lua_yield
#  define lua_yield(L, nr) \
  (lua_yieldk)((L), (nr), 0, NULL)
#endif

#endif /* Lua 5.2 only */



/* other Lua versions */
#if !defined(LUA_VERSION_NUM) || LUA_VERSION_NUM < 501 || LUA_VERSION_NUM > 504

#  error "unsupported Lua version (i.e. not Lua 5.1, 5.2, 5.3, or 5.4)"

#endif /* other Lua versions except 5.1, 5.2, 5.3, and 5.4 */



/* helper macro for defining continuation functions (for every version
 * *except* Lua 5.2) */
#ifndef LUA_KFUNCTION
#define LUA_KFUNCTION(_name) \
  static int (_name)(lua_State *L, int status, lua_KContext ctx)
#endif


#if defined(COMPAT53_INCLUDE_SOURCE)
#  include "compat-5.3.c"
#endif


#endif /* COMPAT53_H_ */