Commit | Line | Data |
7d96ae4d |
1 | /* |
6e647cac |
2 | * TypeConstraint stuff |
3 | * - Mouse::Util::TypeConstraints (including OptimizedConstraionts) |
4 | * - Mouse::Meta::TypeConstraint |
7d96ae4d |
5 | */ |
6 | |
7 | #include "mouse.h" |
8 | |
7d96ae4d |
9 | #ifndef SvRXOK |
10 | #define SvRXOK(sv) (SvROK(sv) && SvMAGICAL(SvRV(sv)) && mg_find(SvRV(sv), PERL_MAGIC_qr)) |
11 | #endif |
12 | |
89d7a4b2 |
13 | #define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION |
14 | typedef struct sui_cxt{ |
15 | GV* universal_isa; |
16 | GV* universal_can; |
17 | AV* tc_extra_args; |
18 | } my_cxt_t; |
19 | START_MY_CXT |
20 | |
d33d8840 |
21 | typedef int (*check_fptr_t)(pTHX_ SV* const data, SV* const sv); |
22 | |
91ee66cb |
23 | static |
24 | XSPROTO(XS_Mouse_constraint_check); |
25 | |
85a74fcf |
26 | /* |
27 | NOTE: mouse_tc_check() handles GETMAGIC |
28 | */ |
1d5ecd5f |
29 | int |
30 | mouse_tc_check(pTHX_ SV* const tc_code, SV* const sv) { |
28ba5a26 |
31 | CV* const cv = (CV*)SvRV(tc_code); |
7ca3334f |
32 | assert(SvTYPE(cv) == SVt_PVCV); |
d33d8840 |
33 | |
19462c57 |
34 | if(CvXSUB(cv) == XS_Mouse_constraint_check){ /* built-in type constraints */ |
7ca3334f |
35 | MAGIC* const mg = (MAGIC*)CvXSUBANY(cv).any_ptr; |
d33d8840 |
36 | |
7ca3334f |
37 | assert(CvXSUBANY(cv).any_ptr != NULL); |
19462c57 |
38 | assert(mg->mg_ptr != NULL); |
28ba5a26 |
39 | |
a901dc2e |
40 | SvGETMAGIC(sv); |
7ca3334f |
41 | /* call the check function directly, skipping call_sv() */ |
42 | return CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, sv); |
1d5ecd5f |
43 | } |
7ca3334f |
44 | else { /* custom */ |
1d5ecd5f |
45 | int ok; |
46 | dSP; |
89d7a4b2 |
47 | dMY_CXT; |
1d5ecd5f |
48 | |
49 | ENTER; |
50 | SAVETMPS; |
51 | |
52 | PUSHMARK(SP); |
53 | XPUSHs(sv); |
89d7a4b2 |
54 | if( MY_CXT.tc_extra_args ) { |
55 | AV* const av = MY_CXT.tc_extra_args; |
56 | I32 const len = AvFILLp(av) + 1; |
57 | int i; |
58 | for(i = 0; i < len; i++) { |
59 | XPUSHs( AvARRAY(av)[i] ); |
60 | } |
61 | } |
1d5ecd5f |
62 | PUTBACK; |
63 | |
64 | call_sv(tc_code, G_SCALAR); |
65 | |
66 | SPAGAIN; |
6ad77996 |
67 | ok = sv_true(POPs); |
1d5ecd5f |
68 | PUTBACK; |
69 | |
70 | FREETMPS; |
71 | LEAVE; |
72 | |
73 | return ok; |
74 | } |
75 | } |
7d96ae4d |
76 | |
7d96ae4d |
77 | /* |
3f1bd57f |
78 | The following type check functions return an integer, not a bool, to keep |
79 | the code simple, |
80 | so if you assign these return value to a bool variable, you must use |
81 | "expr ? TRUE : FALSE". |
7d96ae4d |
82 | */ |
83 | |
84 | int |
19462c57 |
85 | mouse_tc_Any(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv PERL_UNUSED_DECL) { |
7d96ae4d |
86 | assert(sv); |
87 | return TRUE; |
88 | } |
89 | |
90 | int |
19462c57 |
91 | mouse_tc_Bool(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
92 | assert(sv); |
f6e3b8a9 |
93 | |
6ad77996 |
94 | if(sv_true(sv)){ |
7f881031 |
95 | if(SvPOKp(sv)){ /* "1" */ |
96 | return SvCUR(sv) == 1 && SvPVX(sv)[0] == '1'; |
97 | } |
98 | else if(SvIOKp(sv)){ |
f6e3b8a9 |
99 | return SvIVX(sv) == 1; |
7d96ae4d |
100 | } |
101 | else if(SvNOKp(sv)){ |
f6e3b8a9 |
102 | return SvNVX(sv) == 1.0; |
7d96ae4d |
103 | } |
7d96ae4d |
104 | else{ |
105 | return FALSE; |
106 | } |
107 | } |
108 | else{ |
7f881031 |
109 | /* any false value is a boolean */ |
7d96ae4d |
110 | return TRUE; |
111 | } |
112 | } |
113 | |
114 | int |
19462c57 |
115 | mouse_tc_Undef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
116 | assert(sv); |
117 | return !SvOK(sv); |
118 | } |
119 | |
120 | int |
19462c57 |
121 | mouse_tc_Defined(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
122 | assert(sv); |
123 | return SvOK(sv); |
124 | } |
125 | |
126 | int |
19462c57 |
127 | mouse_tc_Value(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
128 | assert(sv); |
129 | return SvOK(sv) && !SvROK(sv); |
130 | } |
131 | |
132 | int |
19462c57 |
133 | mouse_tc_Num(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
134 | assert(sv); |
135 | return LooksLikeNumber(sv); |
136 | } |
137 | |
678d1902 |
138 | static int |
0cfe08a4 |
139 | S_nv_is_integer(pTHX_ NV const nv) { |
140 | if(nv == (NV)(IV)nv){ |
141 | return TRUE; |
142 | } |
143 | else { |
144 | char buf[64]; /* Must fit sprintf/Gconvert of longest NV */ |
3f1bd57f |
145 | const char* p; |
f3e4c7eb |
146 | (void)Gconvert(nv, NV_DIG, 0, buf); |
0cfe08a4 |
147 | p = &buf[0]; |
148 | |
149 | /* -?[0-9]+ */ |
150 | if(*p == '-') p++; |
151 | |
152 | while(*p){ |
153 | if(!isDIGIT(*p)){ |
154 | return FALSE; |
155 | } |
156 | p++; |
157 | } |
158 | return TRUE; |
159 | } |
160 | } |
161 | |
162 | int |
19462c57 |
163 | mouse_tc_Int(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
164 | assert(sv); |
7f881031 |
165 | if(SvPOKp(sv)){ |
166 | int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
167 | return num_type && !(num_type & IS_NUMBER_NOT_INT); |
168 | } |
169 | else if(SvIOKp(sv)){ |
7d96ae4d |
170 | return TRUE; |
171 | } |
9ab5eba8 |
172 | else if(SvNOKp(sv)) { |
0cfe08a4 |
173 | return S_nv_is_integer(aTHX_ SvNVX(sv)); |
7d96ae4d |
174 | } |
7d96ae4d |
175 | return FALSE; |
176 | } |
177 | |
178 | int |
19462c57 |
179 | mouse_tc_Str(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
180 | assert(sv); |
181 | return SvOK(sv) && !SvROK(sv) && !isGV(sv); |
182 | } |
183 | |
184 | int |
7f881031 |
185 | mouse_tc_ClassName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv){ |
7d96ae4d |
186 | assert(sv); |
187 | return is_class_loaded(sv); |
188 | } |
189 | |
190 | int |
19462c57 |
191 | mouse_tc_RoleName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
192 | assert(sv); |
193 | if(is_class_loaded(sv)){ |
194 | int ok; |
7d96ae4d |
195 | |
196 | ENTER; |
197 | SAVETMPS; |
198 | |
3f1bd57f |
199 | ok = is_an_instance_of("Mouse::Meta::Role", get_metaclass(sv)); |
7d96ae4d |
200 | |
201 | FREETMPS; |
202 | LEAVE; |
203 | |
204 | return ok; |
205 | } |
206 | return FALSE; |
207 | } |
208 | |
209 | int |
19462c57 |
210 | mouse_tc_Ref(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
211 | assert(sv); |
212 | return SvROK(sv); |
213 | } |
214 | |
215 | int |
bcf612a8 |
216 | mouse_tc_ScalarRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* sv) { |
7d96ae4d |
217 | assert(sv); |
bcf612a8 |
218 | if(SvROK(sv)){ |
219 | sv = SvRV(sv); |
220 | return !SvOBJECT(sv) && (SvTYPE(sv) <= SVt_PVLV && !isGV(sv)); |
221 | } |
222 | return FALSE; |
7d96ae4d |
223 | } |
224 | |
225 | int |
19462c57 |
226 | mouse_tc_ArrayRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
227 | assert(sv); |
80aa5731 |
228 | return IsArrayRef(sv); |
7d96ae4d |
229 | } |
230 | |
231 | int |
19462c57 |
232 | mouse_tc_HashRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
233 | assert(sv); |
80aa5731 |
234 | return IsHashRef(sv); |
7d96ae4d |
235 | } |
236 | |
237 | int |
19462c57 |
238 | mouse_tc_CodeRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
239 | assert(sv); |
80aa5731 |
240 | return IsCodeRef(sv); |
7d96ae4d |
241 | } |
242 | |
243 | int |
19462c57 |
244 | mouse_tc_RegexpRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
245 | assert(sv); |
246 | return SvRXOK(sv); |
247 | } |
248 | |
249 | int |
19462c57 |
250 | mouse_tc_GlobRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
251 | assert(sv); |
252 | return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv)); |
253 | } |
254 | |
255 | int |
19462c57 |
256 | mouse_tc_FileHandle(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
257 | GV* gv; |
258 | assert(sv); |
259 | |
260 | /* see pp_fileno() in pp_sys.c and Scalar::Util::openhandle() */ |
261 | |
262 | gv = (GV*)(SvROK(sv) ? SvRV(sv) : sv); |
263 | if(isGV(gv) || SvTYPE(gv) == SVt_PVIO){ |
264 | IO* const io = isGV(gv) ? GvIO(gv) : (IO*)gv; |
265 | |
266 | if(io && ( IoIFP(io) || SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar) )){ |
267 | return TRUE; |
268 | } |
269 | } |
270 | |
016e4681 |
271 | return is_an_instance_of("IO::Handle", sv); |
7d96ae4d |
272 | } |
273 | |
274 | int |
19462c57 |
275 | mouse_tc_Object(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) { |
7d96ae4d |
276 | assert(sv); |
277 | return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv); |
278 | } |
279 | |
619338ac |
280 | /* Parameterized type constraints */ |
281 | |
f790c46b |
282 | static int |
619338ac |
283 | mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) { |
80aa5731 |
284 | if(IsArrayRef(sv)){ |
619338ac |
285 | AV* const av = (AV*)SvRV(sv); |
286 | I32 const len = av_len(av) + 1; |
287 | I32 i; |
288 | for(i = 0; i < len; i++){ |
289 | SV* const value = *av_fetch(av, i, TRUE); |
619338ac |
290 | if(!mouse_tc_check(aTHX_ param, value)){ |
291 | return FALSE; |
292 | } |
293 | } |
294 | return TRUE; |
295 | } |
296 | return FALSE; |
297 | } |
298 | |
f790c46b |
299 | static int |
619338ac |
300 | mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) { |
3f1bd57f |
301 | if(IsHashRef(sv)){ |
619338ac |
302 | HV* const hv = (HV*)SvRV(sv); |
303 | HE* he; |
304 | |
305 | hv_iterinit(hv); |
306 | while((he = hv_iternext(hv))){ |
307 | SV* const value = hv_iterval(hv, he); |
619338ac |
308 | if(!mouse_tc_check(aTHX_ param, value)){ |
a1cf0531 |
309 | hv_iterinit(hv); /* reset */ |
619338ac |
310 | return FALSE; |
311 | } |
312 | } |
313 | return TRUE; |
314 | } |
315 | return FALSE; |
316 | } |
317 | |
f790c46b |
318 | static int |
619338ac |
319 | mouse_parameterized_Maybe(pTHX_ SV* const param, SV* const sv) { |
320 | if(SvOK(sv)){ |
321 | return mouse_tc_check(aTHX_ param, sv); |
322 | } |
323 | return TRUE; |
324 | } |
325 | |
f790c46b |
326 | static int |
327 | mouse_types_union_check(pTHX_ AV* const types, SV* const sv) { |
328 | I32 const len = AvFILLp(types) + 1; |
329 | I32 i; |
330 | |
331 | for(i = 0; i < len; i++){ |
332 | if(mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
333 | return TRUE; |
334 | } |
335 | } |
336 | |
337 | return FALSE; |
338 | } |
339 | |
340 | static int |
341 | mouse_types_check(pTHX_ AV* const types, SV* const sv) { |
342 | I32 const len = AvFILLp(types) + 1; |
343 | I32 i; |
344 | |
345 | ENTER; |
346 | SAVE_DEFSV; |
347 | DEFSV_set(sv); |
348 | |
349 | for(i = 0; i < len; i++){ |
350 | if(!mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){ |
351 | LEAVE; |
352 | return FALSE; |
353 | } |
354 | } |
355 | |
356 | LEAVE; |
357 | |
358 | return TRUE; |
359 | } |
360 | |
1d5ecd5f |
361 | /* |
362 | * This class_type generator is taken from Scalar::Util::Instance |
363 | */ |
364 | |
1d5ecd5f |
365 | |
366 | #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj) |
367 | #define MG_klass_pv(mg) ((mg)->mg_ptr) |
368 | #define MG_klass_len(mg) ((mg)->mg_len) |
369 | |
441964ce |
370 | static const char* |
f48920c1 |
371 | mouse_canonicalize_package_name(const char* name){ |
1d5ecd5f |
372 | |
373 | /* "::Foo" -> "Foo" */ |
374 | if(name[0] == ':' && name[1] == ':'){ |
375 | name += 2; |
376 | } |
377 | |
378 | /* "main::main::main::Foo" -> "Foo" */ |
379 | while(strnEQ(name, "main::", sizeof("main::")-1)){ |
380 | name += sizeof("main::")-1; |
381 | } |
382 | |
383 | return name; |
384 | } |
385 | |
386 | static int |
441964ce |
387 | mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){ |
1d5ecd5f |
388 | AV* const linearized_isa = mro_get_linear_isa(instance_stash); |
389 | SV** svp = AvARRAY(linearized_isa); |
390 | SV** const end = svp + AvFILLp(linearized_isa) + 1; |
391 | |
392 | while(svp != end){ |
393 | assert(SvPVX(*svp)); |
f48920c1 |
394 | if(strEQ(klass_pv, mouse_canonicalize_package_name(SvPVX(*svp)))){ |
1d5ecd5f |
395 | return TRUE; |
396 | } |
397 | svp++; |
398 | } |
399 | return FALSE; |
400 | } |
401 | |
ce89cb68 |
402 | #define find_method_pvn(a, b, c) mouse_stash_find_method(aTHX_ a, b, c) |
403 | #define find_method_pvs(a, b) mouse_stash_find_method(aTHX_ a, STR_WITH_LEN(b)) |
404 | |
fc650569 |
405 | STATIC_INLINE GV* |
ce89cb68 |
406 | mouse_stash_find_method(pTHX_ HV* const stash, const char* const name, I32 const namelen){ |
407 | GV** const gvp = (GV**)hv_fetch(stash, name, namelen, FALSE); |
408 | if(gvp && isGV(*gvp) && GvCV(*gvp)){ /* shortcut */ |
409 | return *gvp; |
410 | } |
411 | |
412 | return gv_fetchmeth_autoload(stash, name, namelen, 0); |
413 | } |
414 | |
441964ce |
415 | int |
416 | mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){ |
417 | assert(stash); |
418 | assert(SvTYPE(stash) == SVt_PVHV); |
419 | |
016e4681 |
420 | if(IsObject(instance)){ |
441964ce |
421 | dMY_CXT; |
422 | HV* const instance_stash = SvSTASH(SvRV(instance)); |
28e3abdf |
423 | GV* const myisa = find_method_pvs(instance_stash, "isa"); |
441964ce |
424 | |
425 | /* the instance has no own isa method */ |
28e3abdf |
426 | if(myisa == NULL || GvCV(myisa) == GvCV(MY_CXT.universal_isa)){ |
441964ce |
427 | return stash == instance_stash |
428 | || mouse_lookup_isa(aTHX_ instance_stash, HvNAME_get(stash)); |
429 | } |
430 | /* the instance has its own isa method */ |
431 | else { |
28e3abdf |
432 | SV* package; |
433 | int ok; |
1d5ecd5f |
434 | |
441964ce |
435 | ENTER; |
436 | SAVETMPS; |
1d5ecd5f |
437 | |
28e3abdf |
438 | package = newSVpvn_share(HvNAME_get(stash), HvNAMELEN_get(stash), 0U); |
439 | ok = sv_true(mcall1s(instance, "isa", sv_2mortal(package))); |
1d5ecd5f |
440 | |
441964ce |
441 | FREETMPS; |
442 | LEAVE; |
1d5ecd5f |
443 | |
28e3abdf |
444 | return ok; |
441964ce |
445 | } |
1d5ecd5f |
446 | } |
441964ce |
447 | return FALSE; |
448 | } |
449 | |
450 | static int |
451 | mouse_is_an_instance_of_universal(pTHX_ SV* const data, SV* const sv){ |
452 | PERL_UNUSED_ARG(data); |
453 | return SvROK(sv) && SvOBJECT(SvRV(sv)); |
1d5ecd5f |
454 | } |
455 | |
ebe91068 |
456 | static int |
457 | mouse_can_methods(pTHX_ AV* const methods, SV* const instance){ |
458 | if(IsObject(instance)){ |
459 | dMY_CXT; |
460 | HV* const mystash = SvSTASH(SvRV(instance)); |
ce89cb68 |
461 | GV* const mycan = find_method_pvs(mystash, "can"); |
462 | bool const use_builtin = (mycan == NULL || GvCV(mycan) == GvCV(MY_CXT.universal_can)) ? TRUE : FALSE; |
ebe91068 |
463 | I32 const len = AvFILLp(methods) + 1; |
464 | I32 i; |
465 | for(i = 0; i < len; i++){ |
466 | SV* const name = MOUSE_av_at(methods, i); |
467 | |
468 | if(use_builtin){ |
ce89cb68 |
469 | if(!find_method_pvn(mystash, SvPVX(name), SvCUR(name))){ |
ebe91068 |
470 | return FALSE; |
471 | } |
472 | } |
473 | else{ |
474 | bool ok; |
ebe91068 |
475 | |
476 | ENTER; |
477 | SAVETMPS; |
478 | |
28e3abdf |
479 | ok = sv_true(mcall1s(instance, "can", sv_mortalcopy(name))); |
ebe91068 |
480 | |
481 | FREETMPS; |
482 | LEAVE; |
483 | |
484 | if(!ok){ |
485 | return FALSE; |
486 | } |
487 | } |
488 | } |
489 | return TRUE; |
490 | } |
491 | return FALSE; |
492 | } |
493 | |
441964ce |
494 | static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */ |
f48920c1 |
495 | |
619338ac |
496 | static CV* |
19462c57 |
497 | mouse_tc_generate(pTHX_ const char* const name, check_fptr_t const fptr, SV* const param) { |
619338ac |
498 | CV* xsub; |
916eb82f |
499 | |
19462c57 |
500 | xsub = newXS(name, XS_Mouse_constraint_check, __FILE__); |
916eb82f |
501 | CvXSUBANY(xsub).any_ptr = sv_magicext( |
502 | (SV*)xsub, |
503 | param, /* mg_obj: refcnt will be increased */ |
504 | PERL_MAGIC_ext, |
505 | &mouse_util_type_constraints_vtbl, |
1b364415 |
506 | (char*)fptr, /* mg_ptr */ |
916eb82f |
507 | 0 /* mg_len: 0 for static data */ |
508 | ); |
509 | |
510 | if(!name){ |
511 | sv_2mortal((SV*)xsub); |
512 | } |
513 | |
514 | return xsub; |
515 | } |
516 | |
517 | CV* |
672bde7c |
518 | mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){ |
441964ce |
519 | STRLEN klass_len; |
520 | const char* klass_pv = SvPV_const(klass, klass_len); |
916eb82f |
521 | SV* param; |
1b364415 |
522 | check_fptr_t fptr; |
1d5ecd5f |
523 | |
441964ce |
524 | klass_pv = mouse_canonicalize_package_name(klass_pv); |
1d5ecd5f |
525 | |
441964ce |
526 | if(strNE(klass_pv, "UNIVERSAL")){ |
916eb82f |
527 | param = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD); |
1b364415 |
528 | fptr = (check_fptr_t)mouse_is_an_instance_of; |
441964ce |
529 | |
530 | } |
531 | else{ |
916eb82f |
532 | param = NULL; |
1b364415 |
533 | fptr = (check_fptr_t)mouse_is_an_instance_of_universal; |
441964ce |
534 | } |
535 | |
19462c57 |
536 | return mouse_tc_generate(aTHX_ predicate_name, fptr, param); |
441964ce |
537 | } |
f48920c1 |
538 | |
ebe91068 |
539 | CV* |
540 | mouse_generate_can_predicate_for(pTHX_ SV* const methods, const char* const predicate_name){ |
541 | AV* av; |
542 | AV* const param = newAV_mortal(); |
543 | I32 len; |
544 | I32 i; |
545 | |
d06d9266 |
546 | must_ref(methods, "an ARRAY ref for method names", SVt_PVAV); |
ebe91068 |
547 | av = (AV*)SvRV(methods); |
548 | |
549 | len = av_len(av) + 1; |
550 | for(i = 0; i < len; i++){ |
551 | SV* const name = *av_fetch(av, i, TRUE); |
552 | STRLEN pvlen; |
553 | const char* const pv = SvPV_const(name, pvlen); |
554 | |
555 | av_push(param, newSVpvn_share(pv, pvlen, 0U)); |
556 | } |
557 | |
558 | return mouse_tc_generate(aTHX_ predicate_name, (check_fptr_t)mouse_can_methods, (SV*)param); |
559 | } |
560 | |
91ee66cb |
561 | static |
562 | XSPROTO(XS_Mouse_constraint_check) { |
1d5ecd5f |
563 | dVAR; |
564 | dXSARGS; |
441964ce |
565 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
6e1e4889 |
566 | SV* sv; |
1d5ecd5f |
567 | |
441964ce |
568 | if(items < 1){ |
19462c57 |
569 | croak("Too few arguments for type constraint check functions"); |
1d5ecd5f |
570 | } |
571 | |
6e1e4889 |
572 | sv = ST(0); |
573 | SvGETMAGIC(sv); |
574 | ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, sv) ); |
1d5ecd5f |
575 | XSRETURN(1); |
576 | } |
577 | |
91ee66cb |
578 | static |
579 | XSPROTO(XS_Mouse_TypeConstraint_fallback) { |
6e647cac |
580 | dXSARGS; |
581 | PERL_UNUSED_VAR(cv); |
582 | PERL_UNUSED_VAR(items); |
583 | XSRETURN_EMPTY; |
584 | } |
585 | |
1d5ecd5f |
586 | static void |
587 | setup_my_cxt(pTHX_ pMY_CXT){ |
588 | MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV); |
589 | SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa); |
ebe91068 |
590 | |
591 | MY_CXT.universal_can = gv_fetchpvs("UNIVERSAL::can", GV_ADD, SVt_PVCV); |
592 | SvREFCNT_inc_simple_void_NN(MY_CXT.universal_can); |
89d7a4b2 |
593 | |
594 | MY_CXT.tc_extra_args = NULL; |
1d5ecd5f |
595 | } |
596 | |
19462c57 |
597 | #define DEFINE_TC(name) mouse_tc_generate(aTHX_ "Mouse::Util::TypeConstraints::" STRINGIFY(name), CAT2(mouse_tc_, name), NULL) |
598 | |
6e647cac |
599 | #define MTC_CLASS "Mouse::Meta::TypeConstraint" |
600 | |
1d5ecd5f |
601 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints |
602 | |
646c0371 |
603 | PROTOTYPES: DISABLE |
604 | VERSIONCHECK: DISABLE |
1d5ecd5f |
605 | |
606 | BOOT: |
607 | { |
608 | MY_CXT_INIT; |
609 | setup_my_cxt(aTHX_ aMY_CXT); |
19462c57 |
610 | |
611 | /* setup built-in type constraints */ |
612 | DEFINE_TC(Any); |
613 | DEFINE_TC(Undef); |
614 | DEFINE_TC(Defined); |
615 | DEFINE_TC(Bool); |
616 | DEFINE_TC(Value); |
617 | DEFINE_TC(Ref); |
618 | DEFINE_TC(Str); |
619 | DEFINE_TC(Num); |
620 | DEFINE_TC(Int); |
621 | DEFINE_TC(ScalarRef); |
622 | DEFINE_TC(ArrayRef); |
623 | DEFINE_TC(HashRef); |
624 | DEFINE_TC(CodeRef); |
625 | DEFINE_TC(GlobRef); |
626 | DEFINE_TC(FileHandle); |
627 | DEFINE_TC(RegexpRef); |
628 | DEFINE_TC(Object); |
629 | DEFINE_TC(ClassName); |
630 | DEFINE_TC(RoleName); |
1d5ecd5f |
631 | } |
632 | |
633 | #ifdef USE_ITHREADS |
634 | |
635 | void |
636 | CLONE(...) |
637 | CODE: |
638 | { |
639 | MY_CXT_CLONE; |
640 | setup_my_cxt(aTHX_ aMY_CXT); |
641 | PERL_UNUSED_VAR(items); |
642 | } |
643 | |
644 | #endif /* !USE_ITHREADS */ |
645 | |
19462c57 |
646 | #define MOUSE_TC_MAYBE 0 |
647 | #define MOUSE_TC_ARRAY_REF 1 |
648 | #define MOUSE_TC_HASH_REF 2 |
1d5ecd5f |
649 | |
619338ac |
650 | CV* |
651 | _parameterize_ArrayRef_for(SV* param) |
652 | ALIAS: |
653 | _parameterize_ArrayRef_for = MOUSE_TC_ARRAY_REF |
654 | _parameterize_HashRef_for = MOUSE_TC_HASH_REF |
655 | _parameterize_Maybe_for = MOUSE_TC_MAYBE |
656 | CODE: |
657 | { |
658 | check_fptr_t fptr; |
659 | SV* const tc_code = mcall0s(param, "_compiled_type_constraint"); |
80aa5731 |
660 | if(!IsCodeRef(tc_code)){ |
619338ac |
661 | croak("_compiled_type_constraint didn't return a CODE reference"); |
662 | } |
663 | |
664 | switch(ix){ |
665 | case MOUSE_TC_ARRAY_REF: |
666 | fptr = mouse_parameterized_ArrayRef; |
667 | break; |
668 | case MOUSE_TC_HASH_REF: |
669 | fptr = mouse_parameterized_HashRef; |
670 | break; |
671 | default: /* Maybe type */ |
672 | fptr = mouse_parameterized_Maybe; |
673 | } |
19462c57 |
674 | RETVAL = mouse_tc_generate(aTHX_ NULL, fptr, tc_code); |
619338ac |
675 | } |
676 | OUTPUT: |
677 | RETVAL |
678 | |
f790c46b |
679 | MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Meta::TypeConstraint |
680 | |
a4b901ac |
681 | BOOT: |
682 | INSTALL_SIMPLE_READER(TypeConstraint, name); |
683 | INSTALL_SIMPLE_READER(TypeConstraint, parent); |
684 | INSTALL_SIMPLE_READER(TypeConstraint, message); |
685 | |
fc83f4cf |
686 | INSTALL_SIMPLE_READER(TypeConstraint, type_parameter); |
687 | |
a4b901ac |
688 | INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint); |
a4b901ac |
689 | |
690 | INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion); |
fc83f4cf |
691 | INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, __is_parameterized, type_parameter); /* Mouse specific */ |
a4b901ac |
692 | |
6e647cac |
693 | /* overload stuff */ |
694 | PL_amagic_generation++; |
695 | (void)newXS( MTC_CLASS "::()", |
696 | XS_Mouse_TypeConstraint_fallback, file); |
697 | |
698 | /* fallback => 1 */ |
699 | sv_setsv( |
700 | get_sv( MTC_CLASS "::()", GV_ADD ), |
701 | &PL_sv_yes |
702 | ); |
703 | |
704 | /* '""' => '_as_string' */ |
705 | { |
706 | SV* const code_ref = sv_2mortal(newRV_inc( |
707 | (SV*)get_cv( MTC_CLASS "::_as_string", GV_ADD ))); |
708 | sv_setsv_mg( |
709 | (SV*)gv_fetchpvs( MTC_CLASS "::(\"\"", GV_ADDMULTI, SVt_PVCV ), |
710 | code_ref ); |
711 | } |
7f881031 |
712 | |
6e647cac |
713 | /* '0+' => '_identity' */ |
714 | { |
715 | SV* const code_ref = sv_2mortal(newRV_inc( |
716 | (SV*)get_cv( MTC_CLASS "::_identity", GV_ADD ))); |
717 | sv_setsv_mg( |
718 | (SV*)gv_fetchpvs( MTC_CLASS "::(0+", GV_ADDMULTI, SVt_PVCV ), |
719 | code_ref ); |
720 | } |
721 | |
722 | /* '|' => '_unite' */ |
723 | { |
724 | SV* const code_ref = sv_2mortal(newRV_inc( |
725 | (SV*)get_cv( MTC_CLASS "::_unite", GV_ADD ))); |
726 | sv_setsv_mg( |
727 | (SV*)gv_fetchpvs( MTC_CLASS "::(|", GV_ADDMULTI, SVt_PVCV ), |
728 | code_ref ); |
729 | } |
730 | |
f6c81f00 |
731 | UV |
732 | _identity(SV* self, ...) |
733 | CODE: |
734 | { |
735 | if(!SvROK(self)) { |
736 | croak("Invalid object instance: '%"SVf"'", self); |
737 | } |
738 | RETVAL = PTR2UV(SvRV(self)); |
739 | } |
740 | OUTPUT: |
741 | RETVAL |
6e647cac |
742 | |
f790c46b |
743 | void |
744 | compile_type_constraint(SV* self) |
745 | CODE: |
746 | { |
6fab29c6 |
747 | AV* const checks = newAV_mortal(); |
f790c46b |
748 | SV* check; /* check function */ |
749 | SV* parent; |
750 | SV* types_ref; |
751 | |
f790c46b |
752 | for(parent = get_slots(self, "parent"); parent; parent = get_slots(parent, "parent")){ |
753 | check = get_slots(parent, "hand_optimized_type_constraint"); |
754 | if(check && SvOK(check)){ |
3f1bd57f |
755 | if(!IsCodeRef(check)){ |
f790c46b |
756 | croak("Not a CODE reference"); |
757 | } |
758 | av_unshift(checks, 1); |
759 | av_store(checks, 0, newSVsv(check)); |
760 | break; /* a hand optimized constraint must include all the parent */ |
761 | } |
762 | |
763 | check = get_slots(parent, "constraint"); |
764 | if(check && SvOK(check)){ |
19462c57 |
765 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
766 | croak("Not a CODE reference"); |
767 | } |
768 | av_unshift(checks, 1); |
769 | av_store(checks, 0, newSVsv(check)); |
770 | } |
771 | } |
772 | |
773 | check = get_slots(self, "constraint"); |
774 | if(check && SvOK(check)){ |
19462c57 |
775 | if(!mouse_tc_CodeRef(aTHX_ NULL, check)){ |
f790c46b |
776 | croak("Not a CODE reference"); |
777 | } |
778 | av_push(checks, newSVsv(check)); |
779 | } |
780 | |
781 | types_ref = get_slots(self, "type_constraints"); |
782 | if(types_ref && SvOK(types_ref)){ /* union type */ |
783 | AV* types; |
784 | AV* union_checks; |
785 | CV* union_check; |
786 | I32 len; |
787 | I32 i; |
788 | |
80aa5731 |
789 | if(!IsArrayRef(types_ref)){ |
f790c46b |
790 | croak("Not an ARRAY reference"); |
791 | } |
792 | types = (AV*)SvRV(types_ref); |
793 | len = av_len(types) + 1; |
794 | |
6fab29c6 |
795 | union_checks = newAV_mortal(); |
f790c46b |
796 | |
797 | for(i = 0; i < len; i++){ |
798 | SV* const tc = *av_fetch(types, i, TRUE); |
799 | SV* const c = get_slots(tc, "compiled_type_constraint"); |
19462c57 |
800 | if(!(c && mouse_tc_CodeRef(aTHX_ NULL, c))){ |
c7576321 |
801 | mouse_throw_error(self, c, "'%"SVf"' has no compiled type constraint", self); |
f790c46b |
802 | } |
803 | av_push(union_checks, newSVsv(c)); |
804 | } |
805 | |
19462c57 |
806 | union_check = mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_union_check, (SV*)union_checks); |
f790c46b |
807 | av_push(checks, newRV_inc((SV*)union_check)); |
808 | } |
809 | |
810 | if(AvFILLp(checks) < 0){ |
811 | check = newRV_inc((SV*)get_cv("Mouse::Util::TypeConstraints::Any", TRUE)); |
812 | } |
813 | else{ |
19462c57 |
814 | check = newRV_inc((SV*)mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_check, (SV*)checks)); |
f790c46b |
815 | } |
ca8e67d6 |
816 | (void)set_slots(self, "compiled_type_constraint", check); |
f790c46b |
817 | } |
818 | |
c7576321 |
819 | bool |
31a596ed |
820 | check(SV* self, SV* sv, ...) |
c7576321 |
821 | CODE: |
822 | { |
823 | SV* const check = get_slots(self, "compiled_type_constraint"); |
3f1bd57f |
824 | if(!(check && IsCodeRef(check))){ |
825 | mouse_throw_error(self, check, |
826 | "'%"SVf"' has no compiled type constraint", self); |
c7576321 |
827 | } |
89d7a4b2 |
828 | if( items > 2 ) { |
829 | int i; |
830 | AV* av; |
831 | dMY_CXT; |
832 | SAVESPTR(MY_CXT.tc_extra_args); |
833 | av = MY_CXT.tc_extra_args = newAV_mortal(); |
834 | av_extend(av, items - 3); |
835 | for(i = 2; i < items; i++) { |
836 | av_push(av, SvREFCNT_inc_NN( ST(i) ) ); |
837 | } |
838 | } |
c7576321 |
839 | RETVAL = mouse_tc_check(aTHX_ check, sv) ? TRUE : FALSE; |
840 | } |
841 | OUTPUT: |
842 | RETVAL |
843 | |