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 | |
19462c57 |
27 | if(CvXSUB(cv) == XS_Mouse_constraint_check){ /* built-in type constraints */ |
7ca3334f |
28 | MAGIC* const mg = (MAGIC*)CvXSUBANY(cv).any_ptr; |
d33d8840 |
29 | |
7ca3334f |
30 | assert(CvXSUBANY(cv).any_ptr != NULL); |
19462c57 |
31 | assert(mg->mg_ptr != NULL); |
28ba5a26 |
32 | |
a901dc2e |
33 | SvGETMAGIC(sv); |
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 | |
678d1902 |
120 | static int |
0cfe08a4 |
121 | S_nv_is_integer(pTHX_ NV const nv) { |
122 | if(nv == (NV)(IV)nv){ |
123 | return TRUE; |
124 | } |
125 | else { |
126 | char buf[64]; /* Must fit sprintf/Gconvert of longest NV */ |
127 | char* p; |
128 | Gconvert(nv, NV_DIG, 0, buf); |
129 | p = &buf[0]; |
130 | |
131 | /* -?[0-9]+ */ |
132 | if(*p == '-') p++; |
133 | |
134 | while(*p){ |
135 | if(!isDIGIT(*p)){ |
136 | return FALSE; |
137 | } |
138 | p++; |
139 | } |
140 | return TRUE; |
141 | } |
142 | } |
143 | |
144 | int |
19462c57 |
145 | mouse_tc_Int(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
146 | assert(sv); |
147 | if(SvIOKp(sv)){ |
148 | return TRUE; |
149 | } |
9ab5eba8 |
150 | else if(SvNOKp(sv)) { |
0cfe08a4 |
151 | return S_nv_is_integer(aTHX_ SvNVX(sv)); |
7d96ae4d |
152 | } |
153 | else if(SvPOKp(sv)){ |
154 | int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
155 | if(num_type){ |
156 | return !(num_type & IS_NUMBER_NOT_INT); |
157 | } |
158 | } |
159 | return FALSE; |
160 | } |
161 | |
162 | int |
19462c57 |
163 | mouse_tc_Str(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
164 | assert(sv); |
165 | return SvOK(sv) && !SvROK(sv) && !isGV(sv); |
166 | } |
167 | |
168 | int |
19462c57 |
169 | mouse_tc_ClassName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv){ |
7d96ae4d |
170 | assert(sv); |
171 | return is_class_loaded(sv); |
172 | } |
173 | |
174 | int |
19462c57 |
175 | mouse_tc_RoleName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
176 | assert(sv); |
177 | if(is_class_loaded(sv)){ |
178 | int ok; |
7d96ae4d |
179 | |
180 | ENTER; |
181 | SAVETMPS; |
182 | |
aa2d2e2c |
183 | ok = is_an_instance_of("Mouse::Meta::Role", get_metaclass(sv)); |
7d96ae4d |
184 | |
185 | FREETMPS; |
186 | LEAVE; |
187 | |
188 | return ok; |
189 | } |
190 | return FALSE; |
191 | } |
192 | |
193 | int |
19462c57 |
194 | mouse_tc_Ref(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
195 | assert(sv); |
196 | return SvROK(sv); |
197 | } |
198 | |
199 | int |
bcf612a8 |
200 | mouse_tc_ScalarRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* sv) { |
7d96ae4d |
201 | assert(sv); |
bcf612a8 |
202 | if(SvROK(sv)){ |
203 | sv = SvRV(sv); |
204 | return !SvOBJECT(sv) && (SvTYPE(sv) <= SVt_PVLV && !isGV(sv)); |
205 | } |
206 | return FALSE; |
7d96ae4d |
207 | } |
208 | |
209 | int |
19462c57 |
210 | mouse_tc_ArrayRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
211 | assert(sv); |
80aa5731 |
212 | return IsArrayRef(sv); |
7d96ae4d |
213 | } |
214 | |
215 | int |
19462c57 |
216 | mouse_tc_HashRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
217 | assert(sv); |
80aa5731 |
218 | return IsHashRef(sv); |
7d96ae4d |
219 | } |
220 | |
221 | int |
19462c57 |
222 | mouse_tc_CodeRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
223 | assert(sv); |
80aa5731 |
224 | return IsCodeRef(sv); |
7d96ae4d |
225 | } |
226 | |
227 | int |
19462c57 |
228 | mouse_tc_RegexpRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
229 | assert(sv); |
230 | return SvRXOK(sv); |
231 | } |
232 | |
233 | int |
19462c57 |
234 | mouse_tc_GlobRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
235 | assert(sv); |
236 | return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv)); |
237 | } |
238 | |
239 | int |
19462c57 |
240 | mouse_tc_FileHandle(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
241 | GV* gv; |
242 | assert(sv); |
243 | |
244 | /* see pp_fileno() in pp_sys.c and Scalar::Util::openhandle() */ |
245 | |
246 | gv = (GV*)(SvROK(sv) ? SvRV(sv) : sv); |
247 | if(isGV(gv) || SvTYPE(gv) == SVt_PVIO){ |
248 | IO* const io = isGV(gv) ? GvIO(gv) : (IO*)gv; |
249 | |
250 | if(io && ( IoIFP(io) || SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar) )){ |
251 | return TRUE; |
252 | } |
253 | } |
254 | |
016e4681 |
255 | return is_an_instance_of("IO::Handle", sv); |
7d96ae4d |
256 | } |
257 | |
258 | int |
19462c57 |
259 | mouse_tc_Object(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
260 | assert(sv); |
261 | return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv); |
262 | } |
263 | |
619338ac |
264 | /* Parameterized type constraints */ |
265 | |
f790c46b |
266 | static int |
619338ac |
267 | mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) { |
80aa5731 |
268 | if(IsArrayRef(sv)){ |
619338ac |
269 | AV* const av = (AV*)SvRV(sv); |
270 | I32 const len = av_len(av) + 1; |
271 | I32 i; |
272 | for(i = 0; i < len; i++){ |
273 | SV* const value = *av_fetch(av, i, TRUE); |
619338ac |
274 | if(!mouse_tc_check(aTHX_ param, value)){ |
275 | return FALSE; |
276 | } |
277 | } |
278 | return TRUE; |
279 | } |
280 | return FALSE; |
281 | } |
282 | |
f790c46b |
283 | static int |
619338ac |
284 | mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) { |
19462c57 |
285 | if(mouse_tc_HashRef(aTHX_ NULL, sv)){ |
619338ac |
286 | HV* const hv = (HV*)SvRV(sv); |
287 | HE* he; |
288 | |
289 | hv_iterinit(hv); |
290 | while((he = hv_iternext(hv))){ |
291 | SV* const value = hv_iterval(hv, he); |
619338ac |
292 | if(!mouse_tc_check(aTHX_ param, value)){ |
a1cf0531 |
293 | hv_iterinit(hv); /* reset */ |
619338ac |
294 | return FALSE; |
295 | } |
296 | } |
297 | return TRUE; |
298 | } |
299 | return FALSE; |
300 | } |
301 | |
f790c46b |
302 | static int |
619338ac |
303 | mouse_parameterized_Maybe(pTHX_ SV* const param, SV* const sv) { |
304 | if(SvOK(sv)){ |
305 | return mouse_tc_check(aTHX_ param, sv); |
306 | } |
307 | return TRUE; |
308 | } |
309 | |
f790c46b |
310 | static int |
311 | mouse_types_union_check(pTHX_ AV* const types, SV* const sv) { |
312 | I32 const len = AvFILLp(types) + 1; |
313 | I32 i; |
314 | |
315 | for(i = 0; i < len; i++){ |
316 | if(mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
317 | return TRUE; |
318 | } |
319 | } |
320 | |
321 | return FALSE; |
322 | } |
323 | |
324 | static int |
325 | mouse_types_check(pTHX_ AV* const types, SV* const sv) { |
326 | I32 const len = AvFILLp(types) + 1; |
327 | I32 i; |
328 | |
329 | ENTER; |
330 | SAVE_DEFSV; |
331 | DEFSV_set(sv); |
332 | |
333 | for(i = 0; i < len; i++){ |
334 | if(!mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
335 | LEAVE; |
336 | return FALSE; |
337 | } |
338 | } |
339 | |
340 | LEAVE; |
341 | |
342 | return TRUE; |
343 | } |
344 | |
1d5ecd5f |
345 | /* |
346 | * This class_type generator is taken from Scalar::Util::Instance |
347 | */ |
348 | |
349 | #define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION |
350 | typedef struct sui_cxt{ |
351 | GV* universal_isa; |
ebe91068 |
352 | GV* universal_can; |
1d5ecd5f |
353 | } my_cxt_t; |
354 | START_MY_CXT |
355 | |
356 | #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj) |
357 | #define MG_klass_pv(mg) ((mg)->mg_ptr) |
358 | #define MG_klass_len(mg) ((mg)->mg_len) |
359 | |
441964ce |
360 | static const char* |
f48920c1 |
361 | mouse_canonicalize_package_name(const char* name){ |
1d5ecd5f |
362 | |
363 | /* "::Foo" -> "Foo" */ |
364 | if(name[0] == ':' && name[1] == ':'){ |
365 | name += 2; |
366 | } |
367 | |
368 | /* "main::main::main::Foo" -> "Foo" */ |
369 | while(strnEQ(name, "main::", sizeof("main::")-1)){ |
370 | name += sizeof("main::")-1; |
371 | } |
372 | |
373 | return name; |
374 | } |
375 | |
376 | static int |
441964ce |
377 | mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){ |
1d5ecd5f |
378 | AV* const linearized_isa = mro_get_linear_isa(instance_stash); |
379 | SV** svp = AvARRAY(linearized_isa); |
380 | SV** const end = svp + AvFILLp(linearized_isa) + 1; |
381 | |
382 | while(svp != end){ |
383 | assert(SvPVX(*svp)); |
f48920c1 |
384 | if(strEQ(klass_pv, mouse_canonicalize_package_name(SvPVX(*svp)))){ |
1d5ecd5f |
385 | return TRUE; |
386 | } |
387 | svp++; |
388 | } |
389 | return FALSE; |
390 | } |
391 | |
ce89cb68 |
392 | #define find_method_pvn(a, b, c) mouse_stash_find_method(aTHX_ a, b, c) |
393 | #define find_method_pvs(a, b) mouse_stash_find_method(aTHX_ a, STR_WITH_LEN(b)) |
394 | |
395 | static inline GV* |
396 | mouse_stash_find_method(pTHX_ HV* const stash, const char* const name, I32 const namelen){ |
397 | GV** const gvp = (GV**)hv_fetch(stash, name, namelen, FALSE); |
398 | if(gvp && isGV(*gvp) && GvCV(*gvp)){ /* shortcut */ |
399 | return *gvp; |
400 | } |
401 | |
402 | return gv_fetchmeth_autoload(stash, name, namelen, 0); |
403 | } |
404 | |
441964ce |
405 | int |
406 | mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){ |
407 | assert(stash); |
408 | assert(SvTYPE(stash) == SVt_PVHV); |
409 | |
016e4681 |
410 | if(IsObject(instance)){ |
441964ce |
411 | dMY_CXT; |
412 | HV* const instance_stash = SvSTASH(SvRV(instance)); |
28e3abdf |
413 | GV* const myisa = find_method_pvs(instance_stash, "isa"); |
441964ce |
414 | |
415 | /* the instance has no own isa method */ |
28e3abdf |
416 | if(myisa == NULL || GvCV(myisa) == GvCV(MY_CXT.universal_isa)){ |
441964ce |
417 | return stash == instance_stash |
418 | || mouse_lookup_isa(aTHX_ instance_stash, HvNAME_get(stash)); |
419 | } |
420 | /* the instance has its own isa method */ |
421 | else { |
28e3abdf |
422 | SV* package; |
423 | int ok; |
1d5ecd5f |
424 | |
441964ce |
425 | ENTER; |
426 | SAVETMPS; |
1d5ecd5f |
427 | |
28e3abdf |
428 | package = newSVpvn_share(HvNAME_get(stash), HvNAMELEN_get(stash), 0U); |
429 | ok = sv_true(mcall1s(instance, "isa", sv_2mortal(package))); |
1d5ecd5f |
430 | |
441964ce |
431 | FREETMPS; |
432 | LEAVE; |
1d5ecd5f |
433 | |
28e3abdf |
434 | return ok; |
441964ce |
435 | } |
1d5ecd5f |
436 | } |
441964ce |
437 | return FALSE; |
438 | } |
439 | |
440 | static int |
441 | mouse_is_an_instance_of_universal(pTHX_ SV* const data, SV* const sv){ |
442 | PERL_UNUSED_ARG(data); |
443 | return SvROK(sv) && SvOBJECT(SvRV(sv)); |
1d5ecd5f |
444 | } |
445 | |
ebe91068 |
446 | static int |
447 | mouse_can_methods(pTHX_ AV* const methods, SV* const instance){ |
448 | if(IsObject(instance)){ |
449 | dMY_CXT; |
450 | HV* const mystash = SvSTASH(SvRV(instance)); |
ce89cb68 |
451 | GV* const mycan = find_method_pvs(mystash, "can"); |
452 | bool const use_builtin = (mycan == NULL || GvCV(mycan) == GvCV(MY_CXT.universal_can)) ? TRUE : FALSE; |
ebe91068 |
453 | I32 const len = AvFILLp(methods) + 1; |
454 | I32 i; |
455 | for(i = 0; i < len; i++){ |
456 | SV* const name = MOUSE_av_at(methods, i); |
457 | |
458 | if(use_builtin){ |
ce89cb68 |
459 | if(!find_method_pvn(mystash, SvPVX(name), SvCUR(name))){ |
ebe91068 |
460 | return FALSE; |
461 | } |
462 | } |
463 | else{ |
464 | bool ok; |
ebe91068 |
465 | |
466 | ENTER; |
467 | SAVETMPS; |
468 | |
28e3abdf |
469 | ok = sv_true(mcall1s(instance, "can", sv_mortalcopy(name))); |
ebe91068 |
470 | |
471 | FREETMPS; |
472 | LEAVE; |
473 | |
474 | if(!ok){ |
475 | return FALSE; |
476 | } |
477 | } |
478 | } |
479 | return TRUE; |
480 | } |
481 | return FALSE; |
482 | } |
483 | |
441964ce |
484 | static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */ |
f48920c1 |
485 | |
619338ac |
486 | static CV* |
19462c57 |
487 | mouse_tc_generate(pTHX_ const char* const name, check_fptr_t const fptr, SV* const param) { |
619338ac |
488 | CV* xsub; |
916eb82f |
489 | |
19462c57 |
490 | xsub = newXS(name, XS_Mouse_constraint_check, __FILE__); |
916eb82f |
491 | CvXSUBANY(xsub).any_ptr = sv_magicext( |
492 | (SV*)xsub, |
493 | param, /* mg_obj: refcnt will be increased */ |
494 | PERL_MAGIC_ext, |
495 | &mouse_util_type_constraints_vtbl, |
1b364415 |
496 | (char*)fptr, /* mg_ptr */ |
916eb82f |
497 | 0 /* mg_len: 0 for static data */ |
498 | ); |
499 | |
500 | if(!name){ |
501 | sv_2mortal((SV*)xsub); |
502 | } |
503 | |
504 | return xsub; |
505 | } |
506 | |
507 | CV* |
672bde7c |
508 | mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){ |
441964ce |
509 | STRLEN klass_len; |
510 | const char* klass_pv = SvPV_const(klass, klass_len); |
916eb82f |
511 | SV* param; |
1b364415 |
512 | check_fptr_t fptr; |
1d5ecd5f |
513 | |
441964ce |
514 | klass_pv = mouse_canonicalize_package_name(klass_pv); |
1d5ecd5f |
515 | |
441964ce |
516 | if(strNE(klass_pv, "UNIVERSAL")){ |
916eb82f |
517 | param = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD); |
1b364415 |
518 | fptr = (check_fptr_t)mouse_is_an_instance_of; |
441964ce |
519 | |
520 | } |
521 | else{ |
916eb82f |
522 | param = NULL; |
1b364415 |
523 | fptr = (check_fptr_t)mouse_is_an_instance_of_universal; |
441964ce |
524 | } |
525 | |
19462c57 |
526 | return mouse_tc_generate(aTHX_ predicate_name, fptr, param); |
441964ce |
527 | } |
f48920c1 |
528 | |
ebe91068 |
529 | CV* |
530 | mouse_generate_can_predicate_for(pTHX_ SV* const methods, const char* const predicate_name){ |
531 | AV* av; |
532 | AV* const param = newAV_mortal(); |
533 | I32 len; |
534 | I32 i; |
535 | |
d06d9266 |
536 | must_ref(methods, "an ARRAY ref for method names", SVt_PVAV); |
ebe91068 |
537 | av = (AV*)SvRV(methods); |
538 | |
539 | len = av_len(av) + 1; |
540 | for(i = 0; i < len; i++){ |
541 | SV* const name = *av_fetch(av, i, TRUE); |
542 | STRLEN pvlen; |
543 | const char* const pv = SvPV_const(name, pvlen); |
544 | |
545 | av_push(param, newSVpvn_share(pv, pvlen, 0U)); |
546 | } |
547 | |
548 | return mouse_tc_generate(aTHX_ predicate_name, (check_fptr_t)mouse_can_methods, (SV*)param); |
549 | } |
550 | |
551 | |
19462c57 |
552 | XS(XS_Mouse_constraint_check) { |
1d5ecd5f |
553 | dVAR; |
554 | dXSARGS; |
441964ce |
555 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
1d5ecd5f |
556 | |
441964ce |
557 | if(items < 1){ |
19462c57 |
558 | croak("Too few arguments for type constraint check functions"); |
1d5ecd5f |
559 | } |
560 | |
441964ce |
561 | SvGETMAGIC( ST(0) ); |
562 | ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, ST(0)) ); |
1d5ecd5f |
563 | XSRETURN(1); |
564 | } |
565 | |
566 | static void |
567 | setup_my_cxt(pTHX_ pMY_CXT){ |
568 | MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV); |
569 | SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa); |
ebe91068 |
570 | |
571 | MY_CXT.universal_can = gv_fetchpvs("UNIVERSAL::can", GV_ADD, SVt_PVCV); |
572 | SvREFCNT_inc_simple_void_NN(MY_CXT.universal_can); |
1d5ecd5f |
573 | } |
574 | |
19462c57 |
575 | #define DEFINE_TC(name) mouse_tc_generate(aTHX_ "Mouse::Util::TypeConstraints::" STRINGIFY(name), CAT2(mouse_tc_, name), NULL) |
576 | |
1d5ecd5f |
577 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints |
578 | |
646c0371 |
579 | PROTOTYPES: DISABLE |
580 | VERSIONCHECK: DISABLE |
1d5ecd5f |
581 | |
582 | BOOT: |
583 | { |
584 | MY_CXT_INIT; |
585 | setup_my_cxt(aTHX_ aMY_CXT); |
19462c57 |
586 | |
587 | /* setup built-in type constraints */ |
588 | DEFINE_TC(Any); |
589 | DEFINE_TC(Undef); |
590 | DEFINE_TC(Defined); |
591 | DEFINE_TC(Bool); |
592 | DEFINE_TC(Value); |
593 | DEFINE_TC(Ref); |
594 | DEFINE_TC(Str); |
595 | DEFINE_TC(Num); |
596 | DEFINE_TC(Int); |
597 | DEFINE_TC(ScalarRef); |
598 | DEFINE_TC(ArrayRef); |
599 | DEFINE_TC(HashRef); |
600 | DEFINE_TC(CodeRef); |
601 | DEFINE_TC(GlobRef); |
602 | DEFINE_TC(FileHandle); |
603 | DEFINE_TC(RegexpRef); |
604 | DEFINE_TC(Object); |
605 | DEFINE_TC(ClassName); |
606 | DEFINE_TC(RoleName); |
1d5ecd5f |
607 | } |
608 | |
609 | #ifdef USE_ITHREADS |
610 | |
611 | void |
612 | CLONE(...) |
613 | CODE: |
614 | { |
615 | MY_CXT_CLONE; |
616 | setup_my_cxt(aTHX_ aMY_CXT); |
617 | PERL_UNUSED_VAR(items); |
618 | } |
619 | |
620 | #endif /* !USE_ITHREADS */ |
621 | |
19462c57 |
622 | #define MOUSE_TC_MAYBE 0 |
623 | #define MOUSE_TC_ARRAY_REF 1 |
624 | #define MOUSE_TC_HASH_REF 2 |
1d5ecd5f |
625 | |
619338ac |
626 | CV* |
627 | _parameterize_ArrayRef_for(SV* param) |
628 | ALIAS: |
629 | _parameterize_ArrayRef_for = MOUSE_TC_ARRAY_REF |
630 | _parameterize_HashRef_for = MOUSE_TC_HASH_REF |
631 | _parameterize_Maybe_for = MOUSE_TC_MAYBE |
632 | CODE: |
633 | { |
634 | check_fptr_t fptr; |
635 | SV* const tc_code = mcall0s(param, "_compiled_type_constraint"); |
80aa5731 |
636 | if(!IsCodeRef(tc_code)){ |
619338ac |
637 | croak("_compiled_type_constraint didn't return a CODE reference"); |
638 | } |
639 | |
640 | switch(ix){ |
641 | case MOUSE_TC_ARRAY_REF: |
642 | fptr = mouse_parameterized_ArrayRef; |
643 | break; |
644 | case MOUSE_TC_HASH_REF: |
645 | fptr = mouse_parameterized_HashRef; |
646 | break; |
647 | default: /* Maybe type */ |
648 | fptr = mouse_parameterized_Maybe; |
649 | } |
19462c57 |
650 | RETVAL = mouse_tc_generate(aTHX_ NULL, fptr, tc_code); |
619338ac |
651 | } |
652 | OUTPUT: |
653 | RETVAL |
654 | |
f790c46b |
655 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Meta::TypeConstraint |
656 | |
a4b901ac |
657 | BOOT: |
658 | INSTALL_SIMPLE_READER(TypeConstraint, name); |
659 | INSTALL_SIMPLE_READER(TypeConstraint, parent); |
660 | INSTALL_SIMPLE_READER(TypeConstraint, message); |
661 | |
fc83f4cf |
662 | INSTALL_SIMPLE_READER(TypeConstraint, type_parameter); |
663 | |
a4b901ac |
664 | INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint); |
665 | INSTALL_SIMPLE_READER(TypeConstraint, _compiled_type_coercion); /* Mouse specific */ |
666 | |
667 | INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion); |
fc83f4cf |
668 | INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, __is_parameterized, type_parameter); /* Mouse specific */ |
a4b901ac |
669 | |
f790c46b |
670 | void |
671 | compile_type_constraint(SV* self) |
672 | CODE: |
673 | { |
6fab29c6 |
674 | AV* const checks = newAV_mortal(); |
f790c46b |
675 | SV* check; /* check function */ |
676 | SV* parent; |
677 | SV* types_ref; |
678 | |
f790c46b |
679 | for(parent = get_slots(self, "parent"); parent; parent = get_slots(parent, "parent")){ |
680 | check = get_slots(parent, "hand_optimized_type_constraint"); |
681 | if(check && SvOK(check)){ |
19462c57 |
682 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
683 | croak("Not a CODE reference"); |
684 | } |
685 | av_unshift(checks, 1); |
686 | av_store(checks, 0, newSVsv(check)); |
687 | break; /* a hand optimized constraint must include all the parent */ |
688 | } |
689 | |
690 | check = get_slots(parent, "constraint"); |
691 | if(check && SvOK(check)){ |
19462c57 |
692 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
693 | croak("Not a CODE reference"); |
694 | } |
695 | av_unshift(checks, 1); |
696 | av_store(checks, 0, newSVsv(check)); |
697 | } |
698 | } |
699 | |
700 | check = get_slots(self, "constraint"); |
701 | if(check && SvOK(check)){ |
19462c57 |
702 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
703 | croak("Not a CODE reference"); |
704 | } |
705 | av_push(checks, newSVsv(check)); |
706 | } |
707 | |
708 | types_ref = get_slots(self, "type_constraints"); |
709 | if(types_ref && SvOK(types_ref)){ /* union type */ |
710 | AV* types; |
711 | AV* union_checks; |
712 | CV* union_check; |
713 | I32 len; |
714 | I32 i; |
715 | |
80aa5731 |
716 | if(!IsArrayRef(types_ref)){ |
f790c46b |
717 | croak("Not an ARRAY reference"); |
718 | } |
719 | types = (AV*)SvRV(types_ref); |
720 | len = av_len(types) + 1; |
721 | |
6fab29c6 |
722 | union_checks = newAV_mortal(); |
f790c46b |
723 | |
724 | for(i = 0; i < len; i++){ |
725 | SV* const tc = *av_fetch(types, i, TRUE); |
726 | SV* const c = get_slots(tc, "compiled_type_constraint"); |
19462c57 |
727 | if(!(c && mouse_tc_CodeRef(aTHX_ NULL, c))){ |
c7576321 |
728 | mouse_throw_error(self, c, "'%"SVf"' has no compiled type constraint", self); |
f790c46b |
729 | } |
730 | av_push(union_checks, newSVsv(c)); |
731 | } |
732 | |
19462c57 |
733 | union_check = mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_union_check, (SV*)union_checks); |
f790c46b |
734 | av_push(checks, newRV_inc((SV*)union_check)); |
735 | } |
736 | |
737 | if(AvFILLp(checks) < 0){ |
738 | check = newRV_inc((SV*)get_cv("Mouse::Util::TypeConstraints::Any", TRUE)); |
739 | } |
740 | else{ |
19462c57 |
741 | check = newRV_inc((SV*)mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_check, (SV*)checks)); |
f790c46b |
742 | } |
ca8e67d6 |
743 | (void)set_slots(self, "compiled_type_constraint", check); |
f790c46b |
744 | } |
745 | |
c7576321 |
746 | bool |
747 | check(SV* self, SV* sv) |
748 | CODE: |
749 | { |
750 | SV* const check = get_slots(self, "compiled_type_constraint"); |
751 | if(!(check && mouse_tc_CodeRef(aTHX_ NULL, check))){ |
752 | mouse_throw_error(self, check, "'%"SVf"' has no compiled type constraint", self); |
753 | } |
754 | RETVAL = mouse_tc_check(aTHX_ check, sv) ? TRUE : FALSE; |
755 | } |
756 | OUTPUT: |
757 | RETVAL |
758 | |