1 /* -*- mode: C; buffer-read-only: t -*-
2 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3 This file is built by regen/feature.pl.
4 Any changes made here will be lost!
5 */
6
7
8 #ifndef PERL_FEATURE_H_
9 #define PERL_FEATURE_H_
10
11 #if defined(PERL_CORE) || defined (PERL_EXT)
12
13 #define HINT_FEATURE_SHIFT 26
14
15 #define FEATURE_BAREWORD_FILEHANDLES_BIT 0x0001
16 #define FEATURE_BITWISE_BIT 0x0002
17 #define FEATURE_CLASS_BIT 0x0004
18 #define FEATURE___SUB___BIT 0x0008
19 #define FEATURE_MYREF_BIT 0x0010
20 #define FEATURE_DEFER_BIT 0x0020
21 #define FEATURE_EVALBYTES_BIT 0x0040
22 #define FEATURE_MORE_DELIMS_BIT 0x0080
23 #define FEATURE_FC_BIT 0x0100
24 #define FEATURE_INDIRECT_BIT 0x0200
25 #define FEATURE_ISA_BIT 0x0400
26 #define FEATURE_MODULE_TRUE_BIT 0x0800
27 #define FEATURE_MULTIDIMENSIONAL_BIT 0x1000
28 #define FEATURE_POSTDEREF_QQ_BIT 0x2000
29 #define FEATURE_REFALIASING_BIT 0x4000
30 #define FEATURE_SAY_BIT 0x8000
31 #define FEATURE_SIGNATURES_BIT 0x10000
32 #define FEATURE_STATE_BIT 0x20000
33 #define FEATURE_SWITCH_BIT 0x40000
34 #define FEATURE_TRY_BIT 0x80000
35 #define FEATURE_UNIEVAL_BIT 0x100000
36 #define FEATURE_UNICODE_BIT 0x200000
37
38 #define FEATURE_BUNDLE_DEFAULT 0
39 #define FEATURE_BUNDLE_510 1
40 #define FEATURE_BUNDLE_511 2
41 #define FEATURE_BUNDLE_515 3
42 #define FEATURE_BUNDLE_523 4
43 #define FEATURE_BUNDLE_527 5
44 #define FEATURE_BUNDLE_535 6
45 #define FEATURE_BUNDLE_537 7
46 #define FEATURE_BUNDLE_CUSTOM (HINT_FEATURE_MASK >> HINT_FEATURE_SHIFT)
47
48 /* this is preserved for testing and asserts */
49 #define OLD_CURRENT_HINTS \
50 (PL_curcop == &PL_compiling ? PL_hints : PL_curcop->cop_hints)
51 /* this is the same thing, but simpler (no if) as PL_hints expands
52 to PL_compiling.cop_hints */
53 #define CURRENT_HINTS \
54 PL_curcop->cop_hints
55 #define CURRENT_FEATURE_BUNDLE \
56 ((CURRENT_HINTS & HINT_FEATURE_MASK) >> HINT_FEATURE_SHIFT)
57
58 #define FEATURE_IS_ENABLED_MASK(mask) \
59 ((CURRENT_HINTS & HINT_LOCALIZE_HH) \
60 ? (PL_curcop->cop_features & (mask)) : FALSE)
61
62 /* The longest string we pass in. */
63 #define MAX_FEATURE_LEN (sizeof("bareword_filehandles")-1)
64
65 #define FEATURE_FC_IS_ENABLED \
66 ( \
67 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
68 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
69 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
70 FEATURE_IS_ENABLED_MASK(FEATURE_FC_BIT)) \
71 )
72
73 #define FEATURE_ISA_IS_ENABLED \
74 ( \
75 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_535 && \
76 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
77 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
78 FEATURE_IS_ENABLED_MASK(FEATURE_ISA_BIT)) \
79 )
80
81 #define FEATURE_SAY_IS_ENABLED \
82 ( \
83 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
84 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
85 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
86 FEATURE_IS_ENABLED_MASK(FEATURE_SAY_BIT)) \
87 )
88
89 #define FEATURE_TRY_IS_ENABLED \
90 ( \
91 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
92 FEATURE_IS_ENABLED_MASK(FEATURE_TRY_BIT) \
93 )
94
95 #define FEATURE_CLASS_IS_ENABLED \
96 ( \
97 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
98 FEATURE_IS_ENABLED_MASK(FEATURE_CLASS_BIT) \
99 )
100
101 #define FEATURE_DEFER_IS_ENABLED \
102 ( \
103 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
104 FEATURE_IS_ENABLED_MASK(FEATURE_DEFER_BIT) \
105 )
106
107 #define FEATURE_STATE_IS_ENABLED \
108 ( \
109 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
110 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
111 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
112 FEATURE_IS_ENABLED_MASK(FEATURE_STATE_BIT)) \
113 )
114
115 #define FEATURE_SWITCH_IS_ENABLED \
116 ( \
117 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
118 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527) \
119 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
120 FEATURE_IS_ENABLED_MASK(FEATURE_SWITCH_BIT)) \
121 )
122
123 #define FEATURE_BITWISE_IS_ENABLED \
124 ( \
125 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_527 && \
126 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
127 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
128 FEATURE_IS_ENABLED_MASK(FEATURE_BITWISE_BIT)) \
129 )
130
131 #define FEATURE_INDIRECT_IS_ENABLED \
132 ( \
133 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527 \
134 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
135 FEATURE_IS_ENABLED_MASK(FEATURE_INDIRECT_BIT)) \
136 )
137
138 #define FEATURE_EVALBYTES_IS_ENABLED \
139 ( \
140 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
141 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
142 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
143 FEATURE_IS_ENABLED_MASK(FEATURE_EVALBYTES_BIT)) \
144 )
145
146 #define FEATURE_SIGNATURES_IS_ENABLED \
147 ( \
148 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_535 && \
149 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
150 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
151 FEATURE_IS_ENABLED_MASK(FEATURE_SIGNATURES_BIT)) \
152 )
153
154 #define FEATURE___SUB___IS_ENABLED \
155 ( \
156 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
157 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
158 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
159 FEATURE_IS_ENABLED_MASK(FEATURE___SUB___BIT)) \
160 )
161
162 #define FEATURE_MODULE_TRUE_IS_ENABLED \
163 ( \
164 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_537 \
165 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
166 FEATURE_IS_ENABLED_MASK(FEATURE_MODULE_TRUE_BIT)) \
167 )
168
169 #define FEATURE_REFALIASING_IS_ENABLED \
170 ( \
171 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
172 FEATURE_IS_ENABLED_MASK(FEATURE_REFALIASING_BIT) \
173 )
174
175 #define FEATURE_POSTDEREF_QQ_IS_ENABLED \
176 ( \
177 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_523 && \
178 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
179 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
180 FEATURE_IS_ENABLED_MASK(FEATURE_POSTDEREF_QQ_BIT)) \
181 )
182
183 #define FEATURE_UNIEVAL_IS_ENABLED \
184 ( \
185 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_515 && \
186 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
187 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
188 FEATURE_IS_ENABLED_MASK(FEATURE_UNIEVAL_BIT)) \
189 )
190
191 #define FEATURE_MYREF_IS_ENABLED \
192 ( \
193 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
194 FEATURE_IS_ENABLED_MASK(FEATURE_MYREF_BIT) \
195 )
196
197 #define FEATURE_UNICODE_IS_ENABLED \
198 ( \
199 (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
200 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_537) \
201 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
202 FEATURE_IS_ENABLED_MASK(FEATURE_UNICODE_BIT)) \
203 )
204
205 #define FEATURE_MULTIDIMENSIONAL_IS_ENABLED \
206 ( \
207 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_527 \
208 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
209 FEATURE_IS_ENABLED_MASK(FEATURE_MULTIDIMENSIONAL_BIT)) \
210 )
211
212 #define FEATURE_BAREWORD_FILEHANDLES_IS_ENABLED \
213 ( \
214 CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_535 \
215 || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
216 FEATURE_IS_ENABLED_MASK(FEATURE_BAREWORD_FILEHANDLES_BIT)) \
217 )
218
219 #define FEATURE_MORE_DELIMS_IS_ENABLED \
220 ( \
221 CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
222 FEATURE_IS_ENABLED_MASK(FEATURE_MORE_DELIMS_BIT) \
223 )
224
225
226 #define SAVEFEATUREBITS() SAVEI32(PL_compiling.cop_features)
227
228 #define CLEARFEATUREBITS() (PL_compiling.cop_features = 0)
229
230 #define STOREFEATUREBITSHH(hh) \
231 (hv_stores((hh), "feature/bits", newSVuv(PL_compiling.cop_features)))
232
233 #define FETCHFEATUREBITSHH(hh) \
234 STMT_START { \
235 SV **fbsv = hv_fetchs((hh), "feature/bits", FALSE); \
236 PL_compiling.cop_features = fbsv ? SvUV(*fbsv) : 0; \
237 } STMT_END
238
239 #endif /* PERL_CORE or PERL_EXT */
240
241 #ifdef PERL_IN_OP_C
242 PERL_STATIC_INLINE void
S_enable_feature_bundle(pTHX_ SV * ver)243 S_enable_feature_bundle(pTHX_ SV *ver)
244 {
245 SV *comp_ver = sv_newmortal();
246 PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
247 | (
248 (sv_setnv(comp_ver, 5.037),
249 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
250 ? FEATURE_BUNDLE_537 :
251 (sv_setnv(comp_ver, 5.035),
252 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
253 ? FEATURE_BUNDLE_535 :
254 (sv_setnv(comp_ver, 5.027),
255 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
256 ? FEATURE_BUNDLE_527 :
257 (sv_setnv(comp_ver, 5.023),
258 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
259 ? FEATURE_BUNDLE_523 :
260 (sv_setnv(comp_ver, 5.015),
261 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
262 ? FEATURE_BUNDLE_515 :
263 (sv_setnv(comp_ver, 5.011),
264 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
265 ? FEATURE_BUNDLE_511 :
266 (sv_setnv(comp_ver, 5.009005),
267 vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
268 ? FEATURE_BUNDLE_510 :
269 FEATURE_BUNDLE_DEFAULT
270 ) << HINT_FEATURE_SHIFT;
271 /* special case */
272 assert(PL_curcop == &PL_compiling);
273 if (FEATURE_UNICODE_IS_ENABLED) PL_hints |= HINT_UNI_8_BIT;
274 else PL_hints &= ~HINT_UNI_8_BIT;
275 }
276 #endif /* PERL_IN_OP_C */
277
278 #ifdef PERL_IN_MG_C
279
280 #define magic_sethint_feature(keysv, keypv, keylen, valsv, valbool) \
281 S_magic_sethint_feature(aTHX_ (keysv), (keypv), (keylen), (valsv), (valbool))
282 PERL_STATIC_INLINE void
S_magic_sethint_feature(pTHX_ SV * keysv,const char * keypv,STRLEN keylen,SV * valsv,bool valbool)283 S_magic_sethint_feature(pTHX_ SV *keysv, const char *keypv, STRLEN keylen,
284 SV *valsv, bool valbool) {
285 if (keysv)
286 keypv = SvPV_const(keysv, keylen);
287
288 if (memBEGINs(keypv, keylen, "feature_")) {
289 const char *subf = keypv + (sizeof("feature_")-1);
290 U32 mask = 0;
291 switch (*subf) {
292 case '_':
293 if (keylen == sizeof("feature___SUB__")-1
294 && memcmp(subf+1, "_SUB__", keylen - sizeof("feature_")) == 0) {
295 mask = FEATURE___SUB___BIT;
296 break;
297 }
298 return;
299
300 case 'b':
301 if (keylen == sizeof("feature_bareword_filehandles")-1
302 && memcmp(subf+1, "areword_filehandles", keylen - sizeof("feature_")) == 0) {
303 mask = FEATURE_BAREWORD_FILEHANDLES_BIT;
304 break;
305 }
306 else if (keylen == sizeof("feature_bitwise")-1
307 && memcmp(subf+1, "itwise", keylen - sizeof("feature_")) == 0) {
308 mask = FEATURE_BITWISE_BIT;
309 break;
310 }
311 return;
312
313 case 'c':
314 if (keylen == sizeof("feature_class")-1
315 && memcmp(subf+1, "lass", keylen - sizeof("feature_")) == 0) {
316 mask = FEATURE_CLASS_BIT;
317 break;
318 }
319 return;
320
321 case 'd':
322 if (keylen == sizeof("feature_defer")-1
323 && memcmp(subf+1, "efer", keylen - sizeof("feature_")) == 0) {
324 mask = FEATURE_DEFER_BIT;
325 break;
326 }
327 return;
328
329 case 'e':
330 if (keylen == sizeof("feature_evalbytes")-1
331 && memcmp(subf+1, "valbytes", keylen - sizeof("feature_")) == 0) {
332 mask = FEATURE_EVALBYTES_BIT;
333 break;
334 }
335 return;
336
337 case 'f':
338 if (keylen == sizeof("feature_fc")-1
339 && memcmp(subf+1, "c", keylen - sizeof("feature_")) == 0) {
340 mask = FEATURE_FC_BIT;
341 break;
342 }
343 return;
344
345 case 'i':
346 if (keylen == sizeof("feature_indirect")-1
347 && memcmp(subf+1, "ndirect", keylen - sizeof("feature_")) == 0) {
348 mask = FEATURE_INDIRECT_BIT;
349 break;
350 }
351 else if (keylen == sizeof("feature_isa")-1
352 && memcmp(subf+1, "sa", keylen - sizeof("feature_")) == 0) {
353 mask = FEATURE_ISA_BIT;
354 break;
355 }
356 return;
357
358 case 'm':
359 if (keylen == sizeof("feature_module_true")-1
360 && memcmp(subf+1, "odule_true", keylen - sizeof("feature_")) == 0) {
361 mask = FEATURE_MODULE_TRUE_BIT;
362 break;
363 }
364 else if (keylen == sizeof("feature_more_delims")-1
365 && memcmp(subf+1, "ore_delims", keylen - sizeof("feature_")) == 0) {
366 mask = FEATURE_MORE_DELIMS_BIT;
367 break;
368 }
369 else if (keylen == sizeof("feature_multidimensional")-1
370 && memcmp(subf+1, "ultidimensional", keylen - sizeof("feature_")) == 0) {
371 mask = FEATURE_MULTIDIMENSIONAL_BIT;
372 break;
373 }
374 else if (keylen == sizeof("feature_myref")-1
375 && memcmp(subf+1, "yref", keylen - sizeof("feature_")) == 0) {
376 mask = FEATURE_MYREF_BIT;
377 break;
378 }
379 return;
380
381 case 'p':
382 if (keylen == sizeof("feature_postderef_qq")-1
383 && memcmp(subf+1, "ostderef_qq", keylen - sizeof("feature_")) == 0) {
384 mask = FEATURE_POSTDEREF_QQ_BIT;
385 break;
386 }
387 return;
388
389 case 'r':
390 if (keylen == sizeof("feature_refaliasing")-1
391 && memcmp(subf+1, "efaliasing", keylen - sizeof("feature_")) == 0) {
392 mask = FEATURE_REFALIASING_BIT;
393 break;
394 }
395 return;
396
397 case 's':
398 if (keylen == sizeof("feature_say")-1
399 && memcmp(subf+1, "ay", keylen - sizeof("feature_")) == 0) {
400 mask = FEATURE_SAY_BIT;
401 break;
402 }
403 else if (keylen == sizeof("feature_signatures")-1
404 && memcmp(subf+1, "ignatures", keylen - sizeof("feature_")) == 0) {
405 mask = FEATURE_SIGNATURES_BIT;
406 break;
407 }
408 else if (keylen == sizeof("feature_state")-1
409 && memcmp(subf+1, "tate", keylen - sizeof("feature_")) == 0) {
410 mask = FEATURE_STATE_BIT;
411 break;
412 }
413 else if (keylen == sizeof("feature_switch")-1
414 && memcmp(subf+1, "witch", keylen - sizeof("feature_")) == 0) {
415 mask = FEATURE_SWITCH_BIT;
416 break;
417 }
418 return;
419
420 case 't':
421 if (keylen == sizeof("feature_try")-1
422 && memcmp(subf+1, "ry", keylen - sizeof("feature_")) == 0) {
423 mask = FEATURE_TRY_BIT;
424 break;
425 }
426 return;
427
428 case 'u':
429 if (keylen == sizeof("feature_unicode")-1
430 && memcmp(subf+1, "nicode", keylen - sizeof("feature_")) == 0) {
431 mask = FEATURE_UNICODE_BIT;
432 break;
433 }
434 else if (keylen == sizeof("feature_unieval")-1
435 && memcmp(subf+1, "nieval", keylen - sizeof("feature_")) == 0) {
436 mask = FEATURE_UNIEVAL_BIT;
437 break;
438 }
439 return;
440
441 default:
442 return;
443 }
444 if (valsv ? SvTRUE(valsv) : valbool)
445 PL_compiling.cop_features |= mask;
446 else
447 PL_compiling.cop_features &= ~mask;
448 }
449 }
450 #endif /* PERL_IN_MG_C */
451
452 #endif /* PERL_FEATURE_H_ */
453
454 /* ex: set ro ft=c: */
455