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