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