2 * full definition of built-in type constraints (ware in Moose::Util::TypeConstraints::OptimizedConstraints)
7 #if PERL_BCDVERSION >= 0x5008005
8 #define LooksLikeNumber(sv) looks_like_number(sv)
10 #define LooksLikeNumber(sv) ( SvPOKp(sv) ? looks_like_number(sv) : SvNIOKp(sv) )
14 #define SvRXOK(sv) (SvROK(sv) && SvMAGICAL(SvRV(sv)) && mg_find(SvRV(sv), PERL_MAGIC_qr))
17 typedef int (*check_fptr_t)(pTHX_ SV* const data, SV* const sv);
20 mouse_tc_check(pTHX_ SV* const tc_code, SV* const sv) {
21 CV* const cv = (CV*)SvRV(tc_code);
22 assert(SvTYPE(cv) == Svt_PVCV);
24 if(CvISXSUB(cv)){ /* can be built-in tc */
25 if(CvXSUB(cv) == XS_Mouse__Util__TypeConstraints_Item){
26 assert(CvXSUBANY(cv).any_iv > 0);
28 return mouse_builtin_tc_check(aTHX_ CvXSUBANY(cv).any_iv, sv);
30 else if(CvXSUB(cv) == XS_Mouse_parameterized_check){
31 MAGIC* const mg = (MAGIC*)CvXSUBANY(cv).any_ptr;
33 assert(CvXSUBANY(cv).any_ptr != NULL);
35 /* call the check function directly, skipping call_sv() */
36 return CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, sv);
40 /* user-defined type constraints */
52 call_sv(tc_code, G_SCALAR);
66 mouse_builtin_tc_check(pTHX_ mouse_tc const tc, SV* const sv) {
68 case MOUSE_TC_ANY: return mouse_tc_Any(aTHX_ sv);
69 case MOUSE_TC_ITEM: return mouse_tc_Any(aTHX_ sv);
70 case MOUSE_TC_UNDEF: return mouse_tc_Undef(aTHX_ sv);
71 case MOUSE_TC_DEFINED: return mouse_tc_Defined(aTHX_ sv);
72 case MOUSE_TC_BOOL: return mouse_tc_Bool(aTHX_ sv);
73 case MOUSE_TC_VALUE: return mouse_tc_Value(aTHX_ sv);
74 case MOUSE_TC_REF: return mouse_tc_Ref(aTHX_ sv);
75 case MOUSE_TC_STR: return mouse_tc_Str(aTHX_ sv);
76 case MOUSE_TC_NUM: return mouse_tc_Num(aTHX_ sv);
77 case MOUSE_TC_INT: return mouse_tc_Int(aTHX_ sv);
78 case MOUSE_TC_SCALAR_REF: return mouse_tc_ScalarRef(aTHX_ sv);
79 case MOUSE_TC_ARRAY_REF: return mouse_tc_ArrayRef(aTHX_ sv);
80 case MOUSE_TC_HASH_REF: return mouse_tc_HashRef(aTHX_ sv);
81 case MOUSE_TC_CODE_REF: return mouse_tc_CodeRef(aTHX_ sv);
82 case MOUSE_TC_GLOB_REF: return mouse_tc_GlobRef(aTHX_ sv);
83 case MOUSE_TC_FILEHANDLE: return mouse_tc_FileHandle(aTHX_ sv);
84 case MOUSE_TC_REGEXP_REF: return mouse_tc_RegexpRef(aTHX_ sv);
85 case MOUSE_TC_OBJECT: return mouse_tc_Object(aTHX_ sv);
86 case MOUSE_TC_CLASS_NAME: return mouse_tc_ClassName(aTHX_ sv);
87 case MOUSE_TC_ROLE_NAME: return mouse_tc_RoleName(aTHX_ sv);
92 croak("Mouse-panic: unrecognized type constraint id: %d", (int)tc);
93 return FALSE; /* not reached */
98 The following type check functions return an integer, not a bool, to keep them simple,
99 so if you assign these return value to bool variable, you must use "expr ? TRUE : FALSE".
103 mouse_tc_Any(pTHX_ SV* const sv PERL_UNUSED_DECL) {
109 mouse_tc_Bool(pTHX_ SV* const sv) {
114 return SvIVX(sv) == 1;
117 return SvNVX(sv) == 1.0;
119 else if(SvPOKp(sv)){ /* "1" */
120 return SvCUR(sv) == 1 && SvPVX(sv)[0] == '1';
127 /* false must be boolean */
133 mouse_tc_Undef(pTHX_ SV* const sv) {
139 mouse_tc_Defined(pTHX_ SV* const sv) {
145 mouse_tc_Value(pTHX_ SV* const sv) {
147 return SvOK(sv) && !SvROK(sv);
151 mouse_tc_Num(pTHX_ SV* const sv) {
153 return LooksLikeNumber(sv);
157 mouse_tc_Int(pTHX_ SV* const sv) {
163 NV const nv = SvNVX(sv);
164 return nv > 0 ? (nv == (NV)(UV)nv) : (nv == (NV)(IV)nv);
167 int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL);
169 return !(num_type & IS_NUMBER_NOT_INT);
176 mouse_tc_Str(pTHX_ SV* const sv) {
178 return SvOK(sv) && !SvROK(sv) && !isGV(sv);
182 mouse_tc_ClassName(pTHX_ SV* const sv){
184 return is_class_loaded(sv);
188 mouse_tc_RoleName(pTHX_ SV* const sv) {
190 if(is_class_loaded(sv)){
201 call_pv("Mouse::Util::get_metaclass_by_name", G_SCALAR);
206 ok = is_an_instance_of("Mouse::Meta::Role", meta);
217 mouse_tc_Ref(pTHX_ SV* const sv) {
223 mouse_tc_ScalarRef(pTHX_ SV* const sv) {
225 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && (SvTYPE(SvRV(sv)) <= SVt_PVLV && !isGV(SvRV(sv)));
229 mouse_tc_ArrayRef(pTHX_ SV* const sv) {
231 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVAV;
235 mouse_tc_HashRef(pTHX_ SV* const sv) {
237 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVHV;
241 mouse_tc_CodeRef(pTHX_ SV* const sv) {
243 return SvROK(sv) && !SvOBJECT(SvRV(sv))&& SvTYPE(SvRV(sv)) == SVt_PVCV;
247 mouse_tc_RegexpRef(pTHX_ SV* const sv) {
253 mouse_tc_GlobRef(pTHX_ SV* const sv) {
255 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv));
259 mouse_tc_FileHandle(pTHX_ SV* const sv) {
263 /* see pp_fileno() in pp_sys.c and Scalar::Util::openhandle() */
265 gv = (GV*)(SvROK(sv) ? SvRV(sv) : sv);
266 if(isGV(gv) || SvTYPE(gv) == SVt_PVIO){
267 IO* const io = isGV(gv) ? GvIO(gv) : (IO*)gv;
269 if(io && ( IoIFP(io) || SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar) )){
274 return is_an_instance_of("IO::Handle", sv);
278 mouse_tc_Object(pTHX_ SV* const sv) {
280 return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv);
283 /* Parameterized type constraints */
286 mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) {
287 if(mouse_tc_ArrayRef(aTHX_ sv)){
288 AV* const av = (AV*)SvRV(sv);
289 I32 const len = av_len(av) + 1;
291 for(i = 0; i < len; i++){
292 SV* const value = *av_fetch(av, i, TRUE);
294 if(!mouse_tc_check(aTHX_ param, value)){
304 mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) {
305 if(mouse_tc_HashRef(aTHX_ sv)){
306 HV* const hv = (HV*)SvRV(sv);
310 while((he = hv_iternext(hv))){
311 SV* const value = hv_iterval(hv, he);
313 if(!mouse_tc_check(aTHX_ param, value)){
323 mouse_parameterized_Maybe(pTHX_ SV* const param, SV* const sv) {
325 return mouse_tc_check(aTHX_ param, sv);
331 * This class_type generator is taken from Scalar::Util::Instance
334 #define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION
335 typedef struct sui_cxt{
340 #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj)
341 #define MG_klass_pv(mg) ((mg)->mg_ptr)
342 #define MG_klass_len(mg) ((mg)->mg_len)
345 mouse_canonicalize_package_name(const char* name){
347 /* "::Foo" -> "Foo" */
348 if(name[0] == ':' && name[1] == ':'){
352 /* "main::main::main::Foo" -> "Foo" */
353 while(strnEQ(name, "main::", sizeof("main::")-1)){
354 name += sizeof("main::")-1;
361 mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){
362 AV* const linearized_isa = mro_get_linear_isa(instance_stash);
363 SV** svp = AvARRAY(linearized_isa);
364 SV** const end = svp + AvFILLp(linearized_isa) + 1;
368 if(strEQ(klass_pv, mouse_canonicalize_package_name(SvPVX(*svp)))){
377 mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){
379 assert(SvTYPE(stash) == SVt_PVHV);
381 if(IsObject(instance)){
383 HV* const instance_stash = SvSTASH(SvRV(instance));
384 GV* const instance_isa = gv_fetchmeth_autoload(instance_stash, "isa", sizeof("isa")-1, 0);
386 /* the instance has no own isa method */
387 if(instance_isa == NULL || GvCV(instance_isa) == GvCV(MY_CXT.universal_isa)){
388 return stash == instance_stash
389 || mouse_lookup_isa(aTHX_ instance_stash, HvNAME_get(stash));
391 /* the instance has its own isa method */
402 mPUSHp(HvNAME_get(stash), HvNAMELEN_get(stash));
405 call_sv((SV*)instance_isa, G_SCALAR);
409 retval = SvTRUEx(POPs);
423 mouse_is_an_instance_of_universal(pTHX_ SV* const data, SV* const sv){
424 PERL_UNUSED_ARG(data);
425 return SvROK(sv) && SvOBJECT(SvRV(sv));
428 static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */
431 mouse_tc_parameterize(pTHX_ const char* const name, check_fptr_t const fptr, SV* const param) {
434 xsub = newXS(name, XS_Mouse_parameterized_check, __FILE__);
435 CvXSUBANY(xsub).any_ptr = sv_magicext(
437 param, /* mg_obj: refcnt will be increased */
439 &mouse_util_type_constraints_vtbl,
440 (void*)fptr, /* mg_ptr */
441 0 /* mg_len: 0 for static data */
445 sv_2mortal((SV*)xsub);
452 mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){
454 const char* klass_pv = SvPV_const(klass, klass_len);
458 klass_pv = mouse_canonicalize_package_name(klass_pv);
460 if(strNE(klass_pv, "UNIVERSAL")){
461 param = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD);
462 fptr = (void*)mouse_is_an_instance_of;
467 fptr = (void*)mouse_is_an_instance_of_universal;
470 return mouse_tc_parameterize(aTHX_ predicate_name, fptr, param);
473 XS(XS_Mouse_parameterized_check) {
476 MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
479 croak("Too few arguments for parameterized check functions");
483 ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, ST(0)) );
488 setup_my_cxt(pTHX_ pMY_CXT){
489 MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV);
490 SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa);
493 MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints
496 VERSIONCHECK: DISABLE
501 setup_my_cxt(aTHX_ aMY_CXT);
511 setup_my_cxt(aTHX_ aMY_CXT);
512 PERL_UNUSED_VAR(items);
515 #endif /* !USE_ITHREADS */
518 Item(SV* sv = &PL_sv_undef)
522 Undef = MOUSE_TC_UNDEF
523 Defined = MOUSE_TC_DEFINED
525 Value = MOUSE_TC_VALUE
530 ScalarRef = MOUSE_TC_SCALAR_REF
531 ArrayRef = MOUSE_TC_ARRAY_REF
532 HashRef = MOUSE_TC_HASH_REF
533 CodeRef = MOUSE_TC_CODE_REF
534 GlobRef = MOUSE_TC_GLOB_REF
535 FileHandle = MOUSE_TC_FILEHANDLE
536 RegexpRef = MOUSE_TC_REGEXP_REF
537 Object = MOUSE_TC_OBJECT
538 ClassName = MOUSE_TC_CLASS_NAME
539 RoleName = MOUSE_TC_ROLE_NAME
542 ST(0) = boolSV( mouse_builtin_tc_check(aTHX_ ix, sv) );
547 _parameterize_ArrayRef_for(SV* param)
549 _parameterize_ArrayRef_for = MOUSE_TC_ARRAY_REF
550 _parameterize_HashRef_for = MOUSE_TC_HASH_REF
551 _parameterize_Maybe_for = MOUSE_TC_MAYBE
555 SV* const tc_code = mcall0s(param, "_compiled_type_constraint");
556 if(!(SvROK(tc_code) && SvTYPE(SvRV(tc_code)) == SVt_PVCV)){
557 croak("_compiled_type_constraint didn't return a CODE reference");
561 case MOUSE_TC_ARRAY_REF:
562 fptr = mouse_parameterized_ArrayRef;
564 case MOUSE_TC_HASH_REF:
565 fptr = mouse_parameterized_HashRef;
567 default: /* Maybe type */
568 fptr = mouse_parameterized_Maybe;
570 RETVAL = mouse_tc_parameterize(aTHX_ NULL, fptr, tc_code);