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