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; |
152 | SV* meta; |
153 | dSP; |
154 | |
155 | ENTER; |
156 | SAVETMPS; |
157 | |
158 | PUSHMARK(SP); |
159 | XPUSHs(sv); |
160 | PUTBACK; |
161 | call_pv("Mouse::Util::get_metaclass_by_name", G_SCALAR); |
162 | SPAGAIN; |
163 | meta = POPs; |
164 | PUTBACK; |
165 | |
016e4681 |
166 | ok = is_an_instance_of("Mouse::Meta::Role", meta); |
7d96ae4d |
167 | |
168 | FREETMPS; |
169 | LEAVE; |
170 | |
171 | return ok; |
172 | } |
173 | return FALSE; |
174 | } |
175 | |
176 | int |
19462c57 |
177 | mouse_tc_Ref(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
178 | assert(sv); |
179 | return SvROK(sv); |
180 | } |
181 | |
182 | int |
19462c57 |
183 | mouse_tc_ScalarRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
184 | assert(sv); |
185 | return SvROK(sv) && !SvOBJECT(SvRV(sv)) && (SvTYPE(SvRV(sv)) <= SVt_PVLV && !isGV(SvRV(sv))); |
186 | } |
187 | |
188 | int |
19462c57 |
189 | mouse_tc_ArrayRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
190 | assert(sv); |
80aa5731 |
191 | return IsArrayRef(sv); |
7d96ae4d |
192 | } |
193 | |
194 | int |
19462c57 |
195 | mouse_tc_HashRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
196 | assert(sv); |
80aa5731 |
197 | return IsHashRef(sv); |
7d96ae4d |
198 | } |
199 | |
200 | int |
19462c57 |
201 | mouse_tc_CodeRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
202 | assert(sv); |
80aa5731 |
203 | return IsCodeRef(sv); |
7d96ae4d |
204 | } |
205 | |
206 | int |
19462c57 |
207 | mouse_tc_RegexpRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
208 | assert(sv); |
209 | return SvRXOK(sv); |
210 | } |
211 | |
212 | int |
19462c57 |
213 | mouse_tc_GlobRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
214 | assert(sv); |
215 | return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv)); |
216 | } |
217 | |
218 | int |
19462c57 |
219 | mouse_tc_FileHandle(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
220 | GV* gv; |
221 | assert(sv); |
222 | |
223 | /* see pp_fileno() in pp_sys.c and Scalar::Util::openhandle() */ |
224 | |
225 | gv = (GV*)(SvROK(sv) ? SvRV(sv) : sv); |
226 | if(isGV(gv) || SvTYPE(gv) == SVt_PVIO){ |
227 | IO* const io = isGV(gv) ? GvIO(gv) : (IO*)gv; |
228 | |
229 | if(io && ( IoIFP(io) || SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar) )){ |
230 | return TRUE; |
231 | } |
232 | } |
233 | |
016e4681 |
234 | return is_an_instance_of("IO::Handle", sv); |
7d96ae4d |
235 | } |
236 | |
237 | int |
19462c57 |
238 | mouse_tc_Object(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
239 | assert(sv); |
240 | return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv); |
241 | } |
242 | |
619338ac |
243 | /* Parameterized type constraints */ |
244 | |
f790c46b |
245 | static int |
619338ac |
246 | mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) { |
80aa5731 |
247 | if(IsArrayRef(sv)){ |
619338ac |
248 | AV* const av = (AV*)SvRV(sv); |
249 | I32 const len = av_len(av) + 1; |
250 | I32 i; |
251 | for(i = 0; i < len; i++){ |
252 | SV* const value = *av_fetch(av, i, TRUE); |
253 | SvGETMAGIC(value); |
254 | if(!mouse_tc_check(aTHX_ param, value)){ |
255 | return FALSE; |
256 | } |
257 | } |
258 | return TRUE; |
259 | } |
260 | return FALSE; |
261 | } |
262 | |
f790c46b |
263 | static int |
619338ac |
264 | mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) { |
19462c57 |
265 | if(mouse_tc_HashRef(aTHX_ NULL, sv)){ |
619338ac |
266 | HV* const hv = (HV*)SvRV(sv); |
267 | HE* he; |
268 | |
269 | hv_iterinit(hv); |
270 | while((he = hv_iternext(hv))){ |
271 | SV* const value = hv_iterval(hv, he); |
272 | SvGETMAGIC(value); |
273 | if(!mouse_tc_check(aTHX_ param, value)){ |
274 | return FALSE; |
275 | } |
276 | } |
277 | return TRUE; |
278 | } |
279 | return FALSE; |
280 | } |
281 | |
f790c46b |
282 | static int |
619338ac |
283 | mouse_parameterized_Maybe(pTHX_ SV* const param, SV* const sv) { |
284 | if(SvOK(sv)){ |
285 | return mouse_tc_check(aTHX_ param, sv); |
286 | } |
287 | return TRUE; |
288 | } |
289 | |
f790c46b |
290 | static int |
291 | mouse_types_union_check(pTHX_ AV* const types, SV* const sv) { |
292 | I32 const len = AvFILLp(types) + 1; |
293 | I32 i; |
294 | |
295 | for(i = 0; i < len; i++){ |
296 | if(mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
297 | return TRUE; |
298 | } |
299 | } |
300 | |
301 | return FALSE; |
302 | } |
303 | |
304 | static int |
305 | mouse_types_check(pTHX_ AV* const types, SV* const sv) { |
306 | I32 const len = AvFILLp(types) + 1; |
307 | I32 i; |
308 | |
309 | ENTER; |
310 | SAVE_DEFSV; |
311 | DEFSV_set(sv); |
312 | |
313 | for(i = 0; i < len; i++){ |
314 | if(!mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
315 | LEAVE; |
316 | return FALSE; |
317 | } |
318 | } |
319 | |
320 | LEAVE; |
321 | |
322 | return TRUE; |
323 | } |
324 | |
1d5ecd5f |
325 | /* |
326 | * This class_type generator is taken from Scalar::Util::Instance |
327 | */ |
328 | |
329 | #define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION |
330 | typedef struct sui_cxt{ |
331 | GV* universal_isa; |
332 | } my_cxt_t; |
333 | START_MY_CXT |
334 | |
335 | #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj) |
336 | #define MG_klass_pv(mg) ((mg)->mg_ptr) |
337 | #define MG_klass_len(mg) ((mg)->mg_len) |
338 | |
441964ce |
339 | static const char* |
f48920c1 |
340 | mouse_canonicalize_package_name(const char* name){ |
1d5ecd5f |
341 | |
342 | /* "::Foo" -> "Foo" */ |
343 | if(name[0] == ':' && name[1] == ':'){ |
344 | name += 2; |
345 | } |
346 | |
347 | /* "main::main::main::Foo" -> "Foo" */ |
348 | while(strnEQ(name, "main::", sizeof("main::")-1)){ |
349 | name += sizeof("main::")-1; |
350 | } |
351 | |
352 | return name; |
353 | } |
354 | |
355 | static int |
441964ce |
356 | mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){ |
1d5ecd5f |
357 | AV* const linearized_isa = mro_get_linear_isa(instance_stash); |
358 | SV** svp = AvARRAY(linearized_isa); |
359 | SV** const end = svp + AvFILLp(linearized_isa) + 1; |
360 | |
361 | while(svp != end){ |
362 | assert(SvPVX(*svp)); |
f48920c1 |
363 | if(strEQ(klass_pv, mouse_canonicalize_package_name(SvPVX(*svp)))){ |
1d5ecd5f |
364 | return TRUE; |
365 | } |
366 | svp++; |
367 | } |
368 | return FALSE; |
369 | } |
370 | |
441964ce |
371 | int |
372 | mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){ |
373 | assert(stash); |
374 | assert(SvTYPE(stash) == SVt_PVHV); |
375 | |
016e4681 |
376 | if(IsObject(instance)){ |
441964ce |
377 | dMY_CXT; |
378 | HV* const instance_stash = SvSTASH(SvRV(instance)); |
379 | GV* const instance_isa = gv_fetchmeth_autoload(instance_stash, "isa", sizeof("isa")-1, 0); |
380 | |
381 | /* the instance has no own isa method */ |
382 | if(instance_isa == NULL || GvCV(instance_isa) == GvCV(MY_CXT.universal_isa)){ |
383 | return stash == instance_stash |
384 | || mouse_lookup_isa(aTHX_ instance_stash, HvNAME_get(stash)); |
385 | } |
386 | /* the instance has its own isa method */ |
387 | else { |
388 | int retval; |
389 | dSP; |
1d5ecd5f |
390 | |
441964ce |
391 | ENTER; |
392 | SAVETMPS; |
1d5ecd5f |
393 | |
441964ce |
394 | PUSHMARK(SP); |
395 | EXTEND(SP, 2); |
396 | PUSHs(instance); |
397 | mPUSHp(HvNAME_get(stash), HvNAMELEN_get(stash)); |
398 | PUTBACK; |
1d5ecd5f |
399 | |
441964ce |
400 | call_sv((SV*)instance_isa, G_SCALAR); |
1d5ecd5f |
401 | |
441964ce |
402 | SPAGAIN; |
1d5ecd5f |
403 | |
441964ce |
404 | retval = SvTRUEx(POPs); |
1d5ecd5f |
405 | |
441964ce |
406 | PUTBACK; |
1d5ecd5f |
407 | |
441964ce |
408 | FREETMPS; |
409 | LEAVE; |
1d5ecd5f |
410 | |
441964ce |
411 | return retval; |
412 | } |
1d5ecd5f |
413 | } |
441964ce |
414 | return FALSE; |
415 | } |
416 | |
417 | static int |
418 | mouse_is_an_instance_of_universal(pTHX_ SV* const data, SV* const sv){ |
419 | PERL_UNUSED_ARG(data); |
420 | return SvROK(sv) && SvOBJECT(SvRV(sv)); |
1d5ecd5f |
421 | } |
422 | |
441964ce |
423 | static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */ |
f48920c1 |
424 | |
619338ac |
425 | static CV* |
19462c57 |
426 | mouse_tc_generate(pTHX_ const char* const name, check_fptr_t const fptr, SV* const param) { |
619338ac |
427 | CV* xsub; |
916eb82f |
428 | |
19462c57 |
429 | xsub = newXS(name, XS_Mouse_constraint_check, __FILE__); |
916eb82f |
430 | CvXSUBANY(xsub).any_ptr = sv_magicext( |
431 | (SV*)xsub, |
432 | param, /* mg_obj: refcnt will be increased */ |
433 | PERL_MAGIC_ext, |
434 | &mouse_util_type_constraints_vtbl, |
435 | (void*)fptr, /* mg_ptr */ |
436 | 0 /* mg_len: 0 for static data */ |
437 | ); |
438 | |
439 | if(!name){ |
440 | sv_2mortal((SV*)xsub); |
441 | } |
442 | |
443 | return xsub; |
444 | } |
445 | |
446 | CV* |
672bde7c |
447 | mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){ |
441964ce |
448 | STRLEN klass_len; |
449 | const char* klass_pv = SvPV_const(klass, klass_len); |
916eb82f |
450 | SV* param; |
451 | void* fptr; |
1d5ecd5f |
452 | |
441964ce |
453 | klass_pv = mouse_canonicalize_package_name(klass_pv); |
1d5ecd5f |
454 | |
441964ce |
455 | if(strNE(klass_pv, "UNIVERSAL")){ |
916eb82f |
456 | param = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD); |
457 | fptr = (void*)mouse_is_an_instance_of; |
441964ce |
458 | |
459 | } |
460 | else{ |
916eb82f |
461 | param = NULL; |
462 | fptr = (void*)mouse_is_an_instance_of_universal; |
441964ce |
463 | } |
464 | |
19462c57 |
465 | return mouse_tc_generate(aTHX_ predicate_name, fptr, param); |
441964ce |
466 | } |
f48920c1 |
467 | |
19462c57 |
468 | XS(XS_Mouse_constraint_check) { |
1d5ecd5f |
469 | dVAR; |
470 | dXSARGS; |
441964ce |
471 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
1d5ecd5f |
472 | |
441964ce |
473 | if(items < 1){ |
19462c57 |
474 | croak("Too few arguments for type constraint check functions"); |
1d5ecd5f |
475 | } |
476 | |
441964ce |
477 | SvGETMAGIC( ST(0) ); |
478 | ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, ST(0)) ); |
1d5ecd5f |
479 | XSRETURN(1); |
480 | } |
481 | |
482 | static void |
483 | setup_my_cxt(pTHX_ pMY_CXT){ |
484 | MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV); |
485 | SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa); |
486 | } |
487 | |
19462c57 |
488 | #define DEFINE_TC(name) mouse_tc_generate(aTHX_ "Mouse::Util::TypeConstraints::" STRINGIFY(name), CAT2(mouse_tc_, name), NULL) |
489 | |
1d5ecd5f |
490 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints |
491 | |
646c0371 |
492 | PROTOTYPES: DISABLE |
493 | VERSIONCHECK: DISABLE |
1d5ecd5f |
494 | |
495 | BOOT: |
496 | { |
497 | MY_CXT_INIT; |
498 | setup_my_cxt(aTHX_ aMY_CXT); |
19462c57 |
499 | |
500 | /* setup built-in type constraints */ |
501 | DEFINE_TC(Any); |
502 | DEFINE_TC(Undef); |
503 | DEFINE_TC(Defined); |
504 | DEFINE_TC(Bool); |
505 | DEFINE_TC(Value); |
506 | DEFINE_TC(Ref); |
507 | DEFINE_TC(Str); |
508 | DEFINE_TC(Num); |
509 | DEFINE_TC(Int); |
510 | DEFINE_TC(ScalarRef); |
511 | DEFINE_TC(ArrayRef); |
512 | DEFINE_TC(HashRef); |
513 | DEFINE_TC(CodeRef); |
514 | DEFINE_TC(GlobRef); |
515 | DEFINE_TC(FileHandle); |
516 | DEFINE_TC(RegexpRef); |
517 | DEFINE_TC(Object); |
518 | DEFINE_TC(ClassName); |
519 | DEFINE_TC(RoleName); |
1d5ecd5f |
520 | } |
521 | |
522 | #ifdef USE_ITHREADS |
523 | |
524 | void |
525 | CLONE(...) |
526 | CODE: |
527 | { |
528 | MY_CXT_CLONE; |
529 | setup_my_cxt(aTHX_ aMY_CXT); |
530 | PERL_UNUSED_VAR(items); |
531 | } |
532 | |
533 | #endif /* !USE_ITHREADS */ |
534 | |
19462c57 |
535 | #define MOUSE_TC_MAYBE 0 |
536 | #define MOUSE_TC_ARRAY_REF 1 |
537 | #define MOUSE_TC_HASH_REF 2 |
1d5ecd5f |
538 | |
619338ac |
539 | CV* |
540 | _parameterize_ArrayRef_for(SV* param) |
541 | ALIAS: |
542 | _parameterize_ArrayRef_for = MOUSE_TC_ARRAY_REF |
543 | _parameterize_HashRef_for = MOUSE_TC_HASH_REF |
544 | _parameterize_Maybe_for = MOUSE_TC_MAYBE |
545 | CODE: |
546 | { |
547 | check_fptr_t fptr; |
548 | SV* const tc_code = mcall0s(param, "_compiled_type_constraint"); |
80aa5731 |
549 | if(!IsCodeRef(tc_code)){ |
619338ac |
550 | croak("_compiled_type_constraint didn't return a CODE reference"); |
551 | } |
552 | |
553 | switch(ix){ |
554 | case MOUSE_TC_ARRAY_REF: |
555 | fptr = mouse_parameterized_ArrayRef; |
556 | break; |
557 | case MOUSE_TC_HASH_REF: |
558 | fptr = mouse_parameterized_HashRef; |
559 | break; |
560 | default: /* Maybe type */ |
561 | fptr = mouse_parameterized_Maybe; |
562 | } |
19462c57 |
563 | RETVAL = mouse_tc_generate(aTHX_ NULL, fptr, tc_code); |
619338ac |
564 | } |
565 | OUTPUT: |
566 | RETVAL |
567 | |
f790c46b |
568 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Meta::TypeConstraint |
569 | |
a4b901ac |
570 | BOOT: |
571 | INSTALL_SIMPLE_READER(TypeConstraint, name); |
572 | INSTALL_SIMPLE_READER(TypeConstraint, parent); |
573 | INSTALL_SIMPLE_READER(TypeConstraint, message); |
574 | |
575 | INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint); |
576 | INSTALL_SIMPLE_READER(TypeConstraint, _compiled_type_coercion); /* Mouse specific */ |
577 | |
578 | INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion); |
579 | |
f790c46b |
580 | void |
581 | compile_type_constraint(SV* self) |
582 | CODE: |
583 | { |
584 | AV* const checks = newAV(); |
585 | SV* check; /* check function */ |
586 | SV* parent; |
587 | SV* types_ref; |
588 | |
589 | sv_2mortal((SV*)checks); |
590 | |
591 | for(parent = get_slots(self, "parent"); parent; parent = get_slots(parent, "parent")){ |
592 | check = get_slots(parent, "hand_optimized_type_constraint"); |
593 | if(check && SvOK(check)){ |
19462c57 |
594 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
595 | croak("Not a CODE reference"); |
596 | } |
597 | av_unshift(checks, 1); |
598 | av_store(checks, 0, newSVsv(check)); |
599 | break; /* a hand optimized constraint must include all the parent */ |
600 | } |
601 | |
602 | check = get_slots(parent, "constraint"); |
603 | if(check && SvOK(check)){ |
19462c57 |
604 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
605 | croak("Not a CODE reference"); |
606 | } |
607 | av_unshift(checks, 1); |
608 | av_store(checks, 0, newSVsv(check)); |
609 | } |
610 | } |
611 | |
612 | check = get_slots(self, "constraint"); |
613 | if(check && SvOK(check)){ |
19462c57 |
614 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
615 | croak("Not a CODE reference"); |
616 | } |
617 | av_push(checks, newSVsv(check)); |
618 | } |
619 | |
620 | types_ref = get_slots(self, "type_constraints"); |
621 | if(types_ref && SvOK(types_ref)){ /* union type */ |
622 | AV* types; |
623 | AV* union_checks; |
624 | CV* union_check; |
625 | I32 len; |
626 | I32 i; |
627 | |
80aa5731 |
628 | if(!IsArrayRef(types_ref)){ |
f790c46b |
629 | croak("Not an ARRAY reference"); |
630 | } |
631 | types = (AV*)SvRV(types_ref); |
632 | len = av_len(types) + 1; |
633 | |
634 | union_checks = newAV(); |
635 | sv_2mortal((SV*)union_checks); |
636 | |
637 | for(i = 0; i < len; i++){ |
638 | SV* const tc = *av_fetch(types, i, TRUE); |
639 | SV* const c = get_slots(tc, "compiled_type_constraint"); |
19462c57 |
640 | if(!(c && mouse_tc_CodeRef(aTHX_ NULL, c))){ |
f790c46b |
641 | sv_dump(self); |
642 | croak("'%"SVf"' has no compiled type constraint", self); |
643 | } |
644 | av_push(union_checks, newSVsv(c)); |
645 | } |
646 | |
19462c57 |
647 | union_check = mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_union_check, (SV*)union_checks); |
f790c46b |
648 | av_push(checks, newRV_inc((SV*)union_check)); |
649 | } |
650 | |
651 | if(AvFILLp(checks) < 0){ |
652 | check = newRV_inc((SV*)get_cv("Mouse::Util::TypeConstraints::Any", TRUE)); |
653 | } |
654 | else{ |
19462c57 |
655 | check = newRV_inc((SV*)mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_check, (SV*)checks)); |
f790c46b |
656 | } |
657 | set_slots(self, "compiled_type_constraint", check); |
658 | } |
659 | |