Commit | Line | Data |
7d96ae4d |
1 | /* |
2 | * full definition of built-in type constraints (ware in Moose::Util::TypeConstraints::OptimizedConstraints) |
3 | */ |
4 | |
5 | #include "mouse.h" |
6 | |
7 | #if PERL_BCDVERSION >= 0x5008005 |
8 | #define LooksLikeNumber(sv) looks_like_number(sv) |
9 | #else |
10 | #define LooksLikeNumber(sv) ( SvPOKp(sv) ? looks_like_number(sv) : SvNIOKp(sv) ) |
11 | #endif |
12 | |
13 | #ifndef SvRXOK |
14 | #define SvRXOK(sv) (SvROK(sv) && SvMAGICAL(SvRV(sv)) && mg_find(SvRV(sv), PERL_MAGIC_qr)) |
15 | #endif |
16 | |
d33d8840 |
17 | typedef int (*check_fptr_t)(pTHX_ SV* const data, SV* const sv); |
18 | |
85a74fcf |
19 | /* |
20 | NOTE: mouse_tc_check() handles GETMAGIC |
21 | */ |
1d5ecd5f |
22 | int |
23 | mouse_tc_check(pTHX_ SV* const tc_code, SV* const sv) { |
28ba5a26 |
24 | CV* const cv = (CV*)SvRV(tc_code); |
7ca3334f |
25 | assert(SvTYPE(cv) == SVt_PVCV); |
d33d8840 |
26 | |
85a74fcf |
27 | SvGETMAGIC(sv); |
19462c57 |
28 | if(CvXSUB(cv) == XS_Mouse_constraint_check){ /* built-in type constraints */ |
7ca3334f |
29 | MAGIC* const mg = (MAGIC*)CvXSUBANY(cv).any_ptr; |
d33d8840 |
30 | |
7ca3334f |
31 | assert(CvXSUBANY(cv).any_ptr != NULL); |
19462c57 |
32 | assert(mg->mg_ptr != NULL); |
28ba5a26 |
33 | |
7ca3334f |
34 | /* call the check function directly, skipping call_sv() */ |
35 | return CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, sv); |
1d5ecd5f |
36 | } |
7ca3334f |
37 | else { /* custom */ |
1d5ecd5f |
38 | int ok; |
39 | dSP; |
40 | |
41 | ENTER; |
42 | SAVETMPS; |
43 | |
44 | PUSHMARK(SP); |
45 | XPUSHs(sv); |
46 | PUTBACK; |
47 | |
48 | call_sv(tc_code, G_SCALAR); |
49 | |
50 | SPAGAIN; |
6ad77996 |
51 | ok = sv_true(POPs); |
1d5ecd5f |
52 | PUTBACK; |
53 | |
54 | FREETMPS; |
55 | LEAVE; |
56 | |
57 | return ok; |
58 | } |
59 | } |
7d96ae4d |
60 | |
7d96ae4d |
61 | /* |
62 | The following type check functions return an integer, not a bool, to keep them simple, |
63 | so if you assign these return value to bool variable, you must use "expr ? TRUE : FALSE". |
64 | */ |
65 | |
66 | int |
19462c57 |
67 | mouse_tc_Any(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv PERL_UNUSED_DECL) { |
7d96ae4d |
68 | assert(sv); |
69 | return TRUE; |
70 | } |
71 | |
72 | int |
19462c57 |
73 | mouse_tc_Bool(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
74 | assert(sv); |
f6e3b8a9 |
75 | |
6ad77996 |
76 | if(sv_true(sv)){ |
7d96ae4d |
77 | if(SvIOKp(sv)){ |
f6e3b8a9 |
78 | return SvIVX(sv) == 1; |
7d96ae4d |
79 | } |
80 | else if(SvNOKp(sv)){ |
f6e3b8a9 |
81 | return SvNVX(sv) == 1.0; |
7d96ae4d |
82 | } |
f6e3b8a9 |
83 | else if(SvPOKp(sv)){ /* "1" */ |
84 | return SvCUR(sv) == 1 && SvPVX(sv)[0] == '1'; |
7d96ae4d |
85 | } |
86 | else{ |
87 | return FALSE; |
88 | } |
89 | } |
90 | else{ |
90232975 |
91 | /* any false value must be boolean */ |
7d96ae4d |
92 | return TRUE; |
93 | } |
94 | } |
95 | |
96 | int |
19462c57 |
97 | mouse_tc_Undef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
98 | assert(sv); |
99 | return !SvOK(sv); |
100 | } |
101 | |
102 | int |
19462c57 |
103 | mouse_tc_Defined(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
104 | assert(sv); |
105 | return SvOK(sv); |
106 | } |
107 | |
108 | int |
19462c57 |
109 | mouse_tc_Value(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
110 | assert(sv); |
111 | return SvOK(sv) && !SvROK(sv); |
112 | } |
113 | |
114 | int |
19462c57 |
115 | mouse_tc_Num(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
116 | assert(sv); |
117 | return LooksLikeNumber(sv); |
118 | } |
119 | |
120 | int |
19462c57 |
121 | mouse_tc_Int(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
122 | assert(sv); |
1f1ccccd |
123 | if(SvIOKp(sv) || SvNOKp(sv)){ |
7d96ae4d |
124 | return TRUE; |
125 | } |
7d96ae4d |
126 | else if(SvPOKp(sv)){ |
127 | int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
128 | if(num_type){ |
129 | return !(num_type & IS_NUMBER_NOT_INT); |
130 | } |
131 | } |
132 | return FALSE; |
133 | } |
134 | |
135 | int |
19462c57 |
136 | mouse_tc_Str(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
137 | assert(sv); |
138 | return SvOK(sv) && !SvROK(sv) && !isGV(sv); |
139 | } |
140 | |
141 | int |
19462c57 |
142 | mouse_tc_ClassName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv){ |
7d96ae4d |
143 | assert(sv); |
144 | return is_class_loaded(sv); |
145 | } |
146 | |
147 | int |
19462c57 |
148 | mouse_tc_RoleName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
149 | assert(sv); |
150 | if(is_class_loaded(sv)){ |
151 | int ok; |
7d96ae4d |
152 | |
153 | ENTER; |
154 | SAVETMPS; |
155 | |
aa2d2e2c |
156 | ok = is_an_instance_of("Mouse::Meta::Role", get_metaclass(sv)); |
7d96ae4d |
157 | |
158 | FREETMPS; |
159 | LEAVE; |
160 | |
161 | return ok; |
162 | } |
163 | return FALSE; |
164 | } |
165 | |
166 | int |
19462c57 |
167 | mouse_tc_Ref(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
168 | assert(sv); |
169 | return SvROK(sv); |
170 | } |
171 | |
172 | int |
bcf612a8 |
173 | mouse_tc_ScalarRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* sv) { |
7d96ae4d |
174 | assert(sv); |
bcf612a8 |
175 | if(SvROK(sv)){ |
176 | sv = SvRV(sv); |
177 | return !SvOBJECT(sv) && (SvTYPE(sv) <= SVt_PVLV && !isGV(sv)); |
178 | } |
179 | return FALSE; |
7d96ae4d |
180 | } |
181 | |
182 | int |
19462c57 |
183 | mouse_tc_ArrayRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
184 | assert(sv); |
80aa5731 |
185 | return IsArrayRef(sv); |
7d96ae4d |
186 | } |
187 | |
188 | int |
19462c57 |
189 | mouse_tc_HashRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
190 | assert(sv); |
80aa5731 |
191 | return IsHashRef(sv); |
7d96ae4d |
192 | } |
193 | |
194 | int |
19462c57 |
195 | mouse_tc_CodeRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
196 | assert(sv); |
80aa5731 |
197 | return IsCodeRef(sv); |
7d96ae4d |
198 | } |
199 | |
200 | int |
19462c57 |
201 | mouse_tc_RegexpRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
202 | assert(sv); |
203 | return SvRXOK(sv); |
204 | } |
205 | |
206 | int |
19462c57 |
207 | mouse_tc_GlobRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
208 | assert(sv); |
209 | return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv)); |
210 | } |
211 | |
212 | int |
19462c57 |
213 | mouse_tc_FileHandle(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
214 | GV* gv; |
215 | assert(sv); |
216 | |
217 | /* see pp_fileno() in pp_sys.c and Scalar::Util::openhandle() */ |
218 | |
219 | gv = (GV*)(SvROK(sv) ? SvRV(sv) : sv); |
220 | if(isGV(gv) || SvTYPE(gv) == SVt_PVIO){ |
221 | IO* const io = isGV(gv) ? GvIO(gv) : (IO*)gv; |
222 | |
223 | if(io && ( IoIFP(io) || SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar) )){ |
224 | return TRUE; |
225 | } |
226 | } |
227 | |
016e4681 |
228 | return is_an_instance_of("IO::Handle", sv); |
7d96ae4d |
229 | } |
230 | |
231 | int |
19462c57 |
232 | mouse_tc_Object(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
233 | assert(sv); |
234 | return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv); |
235 | } |
236 | |
619338ac |
237 | /* Parameterized type constraints */ |
238 | |
f790c46b |
239 | static int |
619338ac |
240 | mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) { |
80aa5731 |
241 | if(IsArrayRef(sv)){ |
619338ac |
242 | AV* const av = (AV*)SvRV(sv); |
243 | I32 const len = av_len(av) + 1; |
244 | I32 i; |
245 | for(i = 0; i < len; i++){ |
246 | SV* const value = *av_fetch(av, i, TRUE); |
619338ac |
247 | if(!mouse_tc_check(aTHX_ param, value)){ |
248 | return FALSE; |
249 | } |
250 | } |
251 | return TRUE; |
252 | } |
253 | return FALSE; |
254 | } |
255 | |
f790c46b |
256 | static int |
619338ac |
257 | mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) { |
19462c57 |
258 | if(mouse_tc_HashRef(aTHX_ NULL, sv)){ |
619338ac |
259 | HV* const hv = (HV*)SvRV(sv); |
260 | HE* he; |
261 | |
262 | hv_iterinit(hv); |
263 | while((he = hv_iternext(hv))){ |
264 | SV* const value = hv_iterval(hv, he); |
619338ac |
265 | if(!mouse_tc_check(aTHX_ param, value)){ |
a1cf0531 |
266 | hv_iterinit(hv); /* reset */ |
619338ac |
267 | return FALSE; |
268 | } |
269 | } |
270 | return TRUE; |
271 | } |
272 | return FALSE; |
273 | } |
274 | |
f790c46b |
275 | static int |
619338ac |
276 | mouse_parameterized_Maybe(pTHX_ SV* const param, SV* const sv) { |
277 | if(SvOK(sv)){ |
278 | return mouse_tc_check(aTHX_ param, sv); |
279 | } |
280 | return TRUE; |
281 | } |
282 | |
f790c46b |
283 | static int |
284 | mouse_types_union_check(pTHX_ AV* const types, SV* const sv) { |
285 | I32 const len = AvFILLp(types) + 1; |
286 | I32 i; |
287 | |
288 | for(i = 0; i < len; i++){ |
289 | if(mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
290 | return TRUE; |
291 | } |
292 | } |
293 | |
294 | return FALSE; |
295 | } |
296 | |
297 | static int |
298 | mouse_types_check(pTHX_ AV* const types, SV* const sv) { |
299 | I32 const len = AvFILLp(types) + 1; |
300 | I32 i; |
301 | |
302 | ENTER; |
303 | SAVE_DEFSV; |
304 | DEFSV_set(sv); |
305 | |
306 | for(i = 0; i < len; i++){ |
307 | if(!mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
308 | LEAVE; |
309 | return FALSE; |
310 | } |
311 | } |
312 | |
313 | LEAVE; |
314 | |
315 | return TRUE; |
316 | } |
317 | |
1d5ecd5f |
318 | /* |
319 | * This class_type generator is taken from Scalar::Util::Instance |
320 | */ |
321 | |
322 | #define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION |
323 | typedef struct sui_cxt{ |
324 | GV* universal_isa; |
ebe91068 |
325 | GV* universal_can; |
1d5ecd5f |
326 | } my_cxt_t; |
327 | START_MY_CXT |
328 | |
329 | #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj) |
330 | #define MG_klass_pv(mg) ((mg)->mg_ptr) |
331 | #define MG_klass_len(mg) ((mg)->mg_len) |
332 | |
441964ce |
333 | static const char* |
f48920c1 |
334 | mouse_canonicalize_package_name(const char* name){ |
1d5ecd5f |
335 | |
336 | /* "::Foo" -> "Foo" */ |
337 | if(name[0] == ':' && name[1] == ':'){ |
338 | name += 2; |
339 | } |
340 | |
341 | /* "main::main::main::Foo" -> "Foo" */ |
342 | while(strnEQ(name, "main::", sizeof("main::")-1)){ |
343 | name += sizeof("main::")-1; |
344 | } |
345 | |
346 | return name; |
347 | } |
348 | |
349 | static int |
441964ce |
350 | mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){ |
1d5ecd5f |
351 | AV* const linearized_isa = mro_get_linear_isa(instance_stash); |
352 | SV** svp = AvARRAY(linearized_isa); |
353 | SV** const end = svp + AvFILLp(linearized_isa) + 1; |
354 | |
355 | while(svp != end){ |
356 | assert(SvPVX(*svp)); |
f48920c1 |
357 | if(strEQ(klass_pv, mouse_canonicalize_package_name(SvPVX(*svp)))){ |
1d5ecd5f |
358 | return TRUE; |
359 | } |
360 | svp++; |
361 | } |
362 | return FALSE; |
363 | } |
364 | |
ce89cb68 |
365 | #define find_method_pvn(a, b, c) mouse_stash_find_method(aTHX_ a, b, c) |
366 | #define find_method_pvs(a, b) mouse_stash_find_method(aTHX_ a, STR_WITH_LEN(b)) |
367 | |
368 | static inline GV* |
369 | mouse_stash_find_method(pTHX_ HV* const stash, const char* const name, I32 const namelen){ |
370 | GV** const gvp = (GV**)hv_fetch(stash, name, namelen, FALSE); |
371 | if(gvp && isGV(*gvp) && GvCV(*gvp)){ /* shortcut */ |
372 | return *gvp; |
373 | } |
374 | |
375 | return gv_fetchmeth_autoload(stash, name, namelen, 0); |
376 | } |
377 | |
441964ce |
378 | int |
379 | mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){ |
380 | assert(stash); |
381 | assert(SvTYPE(stash) == SVt_PVHV); |
382 | |
016e4681 |
383 | if(IsObject(instance)){ |
441964ce |
384 | dMY_CXT; |
385 | HV* const instance_stash = SvSTASH(SvRV(instance)); |
ce89cb68 |
386 | GV* const instance_isa = find_method_pvs(instance_stash, "isa"); |
441964ce |
387 | |
388 | /* the instance has no own isa method */ |
389 | if(instance_isa == NULL || GvCV(instance_isa) == GvCV(MY_CXT.universal_isa)){ |
390 | return stash == instance_stash |
391 | || mouse_lookup_isa(aTHX_ instance_stash, HvNAME_get(stash)); |
392 | } |
393 | /* the instance has its own isa method */ |
394 | else { |
395 | int retval; |
396 | dSP; |
1d5ecd5f |
397 | |
441964ce |
398 | ENTER; |
399 | SAVETMPS; |
1d5ecd5f |
400 | |
441964ce |
401 | PUSHMARK(SP); |
402 | EXTEND(SP, 2); |
403 | PUSHs(instance); |
404 | mPUSHp(HvNAME_get(stash), HvNAMELEN_get(stash)); |
405 | PUTBACK; |
1d5ecd5f |
406 | |
441964ce |
407 | call_sv((SV*)instance_isa, G_SCALAR); |
1d5ecd5f |
408 | |
441964ce |
409 | SPAGAIN; |
6ad77996 |
410 | retval = sv_true(POPs); |
441964ce |
411 | PUTBACK; |
1d5ecd5f |
412 | |
441964ce |
413 | FREETMPS; |
414 | LEAVE; |
1d5ecd5f |
415 | |
441964ce |
416 | return retval; |
417 | } |
1d5ecd5f |
418 | } |
441964ce |
419 | return FALSE; |
420 | } |
421 | |
422 | static int |
423 | mouse_is_an_instance_of_universal(pTHX_ SV* const data, SV* const sv){ |
424 | PERL_UNUSED_ARG(data); |
425 | return SvROK(sv) && SvOBJECT(SvRV(sv)); |
1d5ecd5f |
426 | } |
427 | |
ebe91068 |
428 | static int |
429 | mouse_can_methods(pTHX_ AV* const methods, SV* const instance){ |
430 | if(IsObject(instance)){ |
431 | dMY_CXT; |
432 | HV* const mystash = SvSTASH(SvRV(instance)); |
ce89cb68 |
433 | GV* const mycan = find_method_pvs(mystash, "can"); |
434 | bool const use_builtin = (mycan == NULL || GvCV(mycan) == GvCV(MY_CXT.universal_can)) ? TRUE : FALSE; |
ebe91068 |
435 | I32 const len = AvFILLp(methods) + 1; |
436 | I32 i; |
437 | for(i = 0; i < len; i++){ |
438 | SV* const name = MOUSE_av_at(methods, i); |
439 | |
440 | if(use_builtin){ |
ce89cb68 |
441 | if(!find_method_pvn(mystash, SvPVX(name), SvCUR(name))){ |
ebe91068 |
442 | return FALSE; |
443 | } |
444 | } |
445 | else{ |
446 | bool ok; |
447 | dSP; |
448 | |
449 | ENTER; |
450 | SAVETMPS; |
451 | |
452 | PUSHMARK(SP); |
453 | EXTEND(SP, 2); |
454 | PUSHs(instance); |
455 | PUSHs(sv_mortalcopy(name)); |
456 | PUTBACK; |
457 | |
458 | call_method("can", G_SCALAR); |
459 | |
460 | SPAGAIN; |
6ad77996 |
461 | ok = sv_true(POPs); |
ebe91068 |
462 | PUTBACK; |
463 | |
464 | FREETMPS; |
465 | LEAVE; |
466 | |
467 | if(!ok){ |
468 | return FALSE; |
469 | } |
470 | } |
471 | } |
472 | return TRUE; |
473 | } |
474 | return FALSE; |
475 | } |
476 | |
441964ce |
477 | static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */ |
f48920c1 |
478 | |
619338ac |
479 | static CV* |
19462c57 |
480 | mouse_tc_generate(pTHX_ const char* const name, check_fptr_t const fptr, SV* const param) { |
619338ac |
481 | CV* xsub; |
916eb82f |
482 | |
19462c57 |
483 | xsub = newXS(name, XS_Mouse_constraint_check, __FILE__); |
916eb82f |
484 | CvXSUBANY(xsub).any_ptr = sv_magicext( |
485 | (SV*)xsub, |
486 | param, /* mg_obj: refcnt will be increased */ |
487 | PERL_MAGIC_ext, |
488 | &mouse_util_type_constraints_vtbl, |
1b364415 |
489 | (char*)fptr, /* mg_ptr */ |
916eb82f |
490 | 0 /* mg_len: 0 for static data */ |
491 | ); |
492 | |
493 | if(!name){ |
494 | sv_2mortal((SV*)xsub); |
495 | } |
496 | |
497 | return xsub; |
498 | } |
499 | |
500 | CV* |
672bde7c |
501 | mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){ |
441964ce |
502 | STRLEN klass_len; |
503 | const char* klass_pv = SvPV_const(klass, klass_len); |
916eb82f |
504 | SV* param; |
1b364415 |
505 | check_fptr_t fptr; |
1d5ecd5f |
506 | |
441964ce |
507 | klass_pv = mouse_canonicalize_package_name(klass_pv); |
1d5ecd5f |
508 | |
441964ce |
509 | if(strNE(klass_pv, "UNIVERSAL")){ |
916eb82f |
510 | param = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD); |
1b364415 |
511 | fptr = (check_fptr_t)mouse_is_an_instance_of; |
441964ce |
512 | |
513 | } |
514 | else{ |
916eb82f |
515 | param = NULL; |
1b364415 |
516 | fptr = (check_fptr_t)mouse_is_an_instance_of_universal; |
441964ce |
517 | } |
518 | |
19462c57 |
519 | return mouse_tc_generate(aTHX_ predicate_name, fptr, param); |
441964ce |
520 | } |
f48920c1 |
521 | |
ebe91068 |
522 | CV* |
523 | mouse_generate_can_predicate_for(pTHX_ SV* const methods, const char* const predicate_name){ |
524 | AV* av; |
525 | AV* const param = newAV_mortal(); |
526 | I32 len; |
527 | I32 i; |
528 | |
d06d9266 |
529 | must_ref(methods, "an ARRAY ref for method names", SVt_PVAV); |
ebe91068 |
530 | av = (AV*)SvRV(methods); |
531 | |
532 | len = av_len(av) + 1; |
533 | for(i = 0; i < len; i++){ |
534 | SV* const name = *av_fetch(av, i, TRUE); |
535 | STRLEN pvlen; |
536 | const char* const pv = SvPV_const(name, pvlen); |
537 | |
538 | av_push(param, newSVpvn_share(pv, pvlen, 0U)); |
539 | } |
540 | |
541 | return mouse_tc_generate(aTHX_ predicate_name, (check_fptr_t)mouse_can_methods, (SV*)param); |
542 | } |
543 | |
544 | |
19462c57 |
545 | XS(XS_Mouse_constraint_check) { |
1d5ecd5f |
546 | dVAR; |
547 | dXSARGS; |
441964ce |
548 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
1d5ecd5f |
549 | |
441964ce |
550 | if(items < 1){ |
19462c57 |
551 | croak("Too few arguments for type constraint check functions"); |
1d5ecd5f |
552 | } |
553 | |
441964ce |
554 | SvGETMAGIC( ST(0) ); |
555 | ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, ST(0)) ); |
1d5ecd5f |
556 | XSRETURN(1); |
557 | } |
558 | |
559 | static void |
560 | setup_my_cxt(pTHX_ pMY_CXT){ |
561 | MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV); |
562 | SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa); |
ebe91068 |
563 | |
564 | MY_CXT.universal_can = gv_fetchpvs("UNIVERSAL::can", GV_ADD, SVt_PVCV); |
565 | SvREFCNT_inc_simple_void_NN(MY_CXT.universal_can); |
1d5ecd5f |
566 | } |
567 | |
19462c57 |
568 | #define DEFINE_TC(name) mouse_tc_generate(aTHX_ "Mouse::Util::TypeConstraints::" STRINGIFY(name), CAT2(mouse_tc_, name), NULL) |
569 | |
1d5ecd5f |
570 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints |
571 | |
646c0371 |
572 | PROTOTYPES: DISABLE |
573 | VERSIONCHECK: DISABLE |
1d5ecd5f |
574 | |
575 | BOOT: |
576 | { |
577 | MY_CXT_INIT; |
578 | setup_my_cxt(aTHX_ aMY_CXT); |
19462c57 |
579 | |
580 | /* setup built-in type constraints */ |
581 | DEFINE_TC(Any); |
582 | DEFINE_TC(Undef); |
583 | DEFINE_TC(Defined); |
584 | DEFINE_TC(Bool); |
585 | DEFINE_TC(Value); |
586 | DEFINE_TC(Ref); |
587 | DEFINE_TC(Str); |
588 | DEFINE_TC(Num); |
589 | DEFINE_TC(Int); |
590 | DEFINE_TC(ScalarRef); |
591 | DEFINE_TC(ArrayRef); |
592 | DEFINE_TC(HashRef); |
593 | DEFINE_TC(CodeRef); |
594 | DEFINE_TC(GlobRef); |
595 | DEFINE_TC(FileHandle); |
596 | DEFINE_TC(RegexpRef); |
597 | DEFINE_TC(Object); |
598 | DEFINE_TC(ClassName); |
599 | DEFINE_TC(RoleName); |
1d5ecd5f |
600 | } |
601 | |
602 | #ifdef USE_ITHREADS |
603 | |
604 | void |
605 | CLONE(...) |
606 | CODE: |
607 | { |
608 | MY_CXT_CLONE; |
609 | setup_my_cxt(aTHX_ aMY_CXT); |
610 | PERL_UNUSED_VAR(items); |
611 | } |
612 | |
613 | #endif /* !USE_ITHREADS */ |
614 | |
19462c57 |
615 | #define MOUSE_TC_MAYBE 0 |
616 | #define MOUSE_TC_ARRAY_REF 1 |
617 | #define MOUSE_TC_HASH_REF 2 |
1d5ecd5f |
618 | |
619338ac |
619 | CV* |
620 | _parameterize_ArrayRef_for(SV* param) |
621 | ALIAS: |
622 | _parameterize_ArrayRef_for = MOUSE_TC_ARRAY_REF |
623 | _parameterize_HashRef_for = MOUSE_TC_HASH_REF |
624 | _parameterize_Maybe_for = MOUSE_TC_MAYBE |
625 | CODE: |
626 | { |
627 | check_fptr_t fptr; |
628 | SV* const tc_code = mcall0s(param, "_compiled_type_constraint"); |
80aa5731 |
629 | if(!IsCodeRef(tc_code)){ |
619338ac |
630 | croak("_compiled_type_constraint didn't return a CODE reference"); |
631 | } |
632 | |
633 | switch(ix){ |
634 | case MOUSE_TC_ARRAY_REF: |
635 | fptr = mouse_parameterized_ArrayRef; |
636 | break; |
637 | case MOUSE_TC_HASH_REF: |
638 | fptr = mouse_parameterized_HashRef; |
639 | break; |
640 | default: /* Maybe type */ |
641 | fptr = mouse_parameterized_Maybe; |
642 | } |
19462c57 |
643 | RETVAL = mouse_tc_generate(aTHX_ NULL, fptr, tc_code); |
619338ac |
644 | } |
645 | OUTPUT: |
646 | RETVAL |
647 | |
f790c46b |
648 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Meta::TypeConstraint |
649 | |
a4b901ac |
650 | BOOT: |
651 | INSTALL_SIMPLE_READER(TypeConstraint, name); |
652 | INSTALL_SIMPLE_READER(TypeConstraint, parent); |
653 | INSTALL_SIMPLE_READER(TypeConstraint, message); |
654 | |
fc83f4cf |
655 | INSTALL_SIMPLE_READER(TypeConstraint, type_parameter); |
656 | |
a4b901ac |
657 | INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint); |
658 | INSTALL_SIMPLE_READER(TypeConstraint, _compiled_type_coercion); /* Mouse specific */ |
659 | |
660 | INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion); |
fc83f4cf |
661 | INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, __is_parameterized, type_parameter); /* Mouse specific */ |
a4b901ac |
662 | |
f790c46b |
663 | void |
664 | compile_type_constraint(SV* self) |
665 | CODE: |
666 | { |
6fab29c6 |
667 | AV* const checks = newAV_mortal(); |
f790c46b |
668 | SV* check; /* check function */ |
669 | SV* parent; |
670 | SV* types_ref; |
671 | |
f790c46b |
672 | for(parent = get_slots(self, "parent"); parent; parent = get_slots(parent, "parent")){ |
673 | check = get_slots(parent, "hand_optimized_type_constraint"); |
674 | if(check && SvOK(check)){ |
19462c57 |
675 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
676 | croak("Not a CODE reference"); |
677 | } |
678 | av_unshift(checks, 1); |
679 | av_store(checks, 0, newSVsv(check)); |
680 | break; /* a hand optimized constraint must include all the parent */ |
681 | } |
682 | |
683 | check = get_slots(parent, "constraint"); |
684 | if(check && SvOK(check)){ |
19462c57 |
685 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
686 | croak("Not a CODE reference"); |
687 | } |
688 | av_unshift(checks, 1); |
689 | av_store(checks, 0, newSVsv(check)); |
690 | } |
691 | } |
692 | |
693 | check = get_slots(self, "constraint"); |
694 | if(check && SvOK(check)){ |
19462c57 |
695 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
696 | croak("Not a CODE reference"); |
697 | } |
698 | av_push(checks, newSVsv(check)); |
699 | } |
700 | |
701 | types_ref = get_slots(self, "type_constraints"); |
702 | if(types_ref && SvOK(types_ref)){ /* union type */ |
703 | AV* types; |
704 | AV* union_checks; |
705 | CV* union_check; |
706 | I32 len; |
707 | I32 i; |
708 | |
80aa5731 |
709 | if(!IsArrayRef(types_ref)){ |
f790c46b |
710 | croak("Not an ARRAY reference"); |
711 | } |
712 | types = (AV*)SvRV(types_ref); |
713 | len = av_len(types) + 1; |
714 | |
6fab29c6 |
715 | union_checks = newAV_mortal(); |
f790c46b |
716 | |
717 | for(i = 0; i < len; i++){ |
718 | SV* const tc = *av_fetch(types, i, TRUE); |
719 | SV* const c = get_slots(tc, "compiled_type_constraint"); |
19462c57 |
720 | if(!(c && mouse_tc_CodeRef(aTHX_ NULL, c))){ |
f790c46b |
721 | sv_dump(self); |
722 | croak("'%"SVf"' has no compiled type constraint", self); |
723 | } |
724 | av_push(union_checks, newSVsv(c)); |
725 | } |
726 | |
19462c57 |
727 | union_check = mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_union_check, (SV*)union_checks); |
f790c46b |
728 | av_push(checks, newRV_inc((SV*)union_check)); |
729 | } |
730 | |
731 | if(AvFILLp(checks) < 0){ |
732 | check = newRV_inc((SV*)get_cv("Mouse::Util::TypeConstraints::Any", TRUE)); |
733 | } |
734 | else{ |
19462c57 |
735 | check = newRV_inc((SV*)mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_check, (SV*)checks)); |
f790c46b |
736 | } |
ca8e67d6 |
737 | (void)set_slots(self, "compiled_type_constraint", check); |
f790c46b |
738 | } |
739 | |