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(CvXSUB(cv) == XS_Mouse__Util__TypeConstraints_Item){ /* built-in */
25 assert(CvXSUBANY(cv).any_iv > 0);
27 return mouse_builtin_tc_check(aTHX_ CvXSUBANY(cv).any_iv, sv);
29 else if(CvXSUB(cv) == XS_Mouse_parameterized_check){ /* built-in, parameterizad */
30 MAGIC* const mg = (MAGIC*)CvXSUBANY(cv).any_ptr;
32 assert(CvXSUBANY(cv).any_ptr != NULL);
34 /* call the check function directly, skipping call_sv() */
35 return CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, sv);
48 call_sv(tc_code, G_SCALAR);
62 mouse_builtin_tc_check(pTHX_ mouse_tc const tc, SV* const sv) {
64 case MOUSE_TC_ANY: return mouse_tc_Any(aTHX_ sv);
65 case MOUSE_TC_ITEM: return mouse_tc_Any(aTHX_ sv);
66 case MOUSE_TC_UNDEF: return mouse_tc_Undef(aTHX_ sv);
67 case MOUSE_TC_DEFINED: return mouse_tc_Defined(aTHX_ sv);
68 case MOUSE_TC_BOOL: return mouse_tc_Bool(aTHX_ sv);
69 case MOUSE_TC_VALUE: return mouse_tc_Value(aTHX_ sv);
70 case MOUSE_TC_REF: return mouse_tc_Ref(aTHX_ sv);
71 case MOUSE_TC_STR: return mouse_tc_Str(aTHX_ sv);
72 case MOUSE_TC_NUM: return mouse_tc_Num(aTHX_ sv);
73 case MOUSE_TC_INT: return mouse_tc_Int(aTHX_ sv);
74 case MOUSE_TC_SCALAR_REF: return mouse_tc_ScalarRef(aTHX_ sv);
75 case MOUSE_TC_ARRAY_REF: return mouse_tc_ArrayRef(aTHX_ sv);
76 case MOUSE_TC_HASH_REF: return mouse_tc_HashRef(aTHX_ sv);
77 case MOUSE_TC_CODE_REF: return mouse_tc_CodeRef(aTHX_ sv);
78 case MOUSE_TC_GLOB_REF: return mouse_tc_GlobRef(aTHX_ sv);
79 case MOUSE_TC_FILEHANDLE: return mouse_tc_FileHandle(aTHX_ sv);
80 case MOUSE_TC_REGEXP_REF: return mouse_tc_RegexpRef(aTHX_ sv);
81 case MOUSE_TC_OBJECT: return mouse_tc_Object(aTHX_ sv);
82 case MOUSE_TC_CLASS_NAME: return mouse_tc_ClassName(aTHX_ sv);
83 case MOUSE_TC_ROLE_NAME: return mouse_tc_RoleName(aTHX_ sv);
88 croak("Mouse-panic: unrecognized type constraint id: %d", (int)tc);
89 return FALSE; /* not reached */
94 The following type check functions return an integer, not a bool, to keep them simple,
95 so if you assign these return value to bool variable, you must use "expr ? TRUE : FALSE".
99 mouse_tc_Any(pTHX_ SV* const sv PERL_UNUSED_DECL) {
105 mouse_tc_Bool(pTHX_ SV* const sv) {
110 return SvIVX(sv) == 1;
113 return SvNVX(sv) == 1.0;
115 else if(SvPOKp(sv)){ /* "1" */
116 return SvCUR(sv) == 1 && SvPVX(sv)[0] == '1';
123 /* false must be boolean */
129 mouse_tc_Undef(pTHX_ SV* const sv) {
135 mouse_tc_Defined(pTHX_ SV* const sv) {
141 mouse_tc_Value(pTHX_ SV* const sv) {
143 return SvOK(sv) && !SvROK(sv);
147 mouse_tc_Num(pTHX_ SV* const sv) {
149 return LooksLikeNumber(sv);
153 mouse_tc_Int(pTHX_ SV* const sv) {
159 NV const nv = SvNVX(sv);
160 return nv > 0 ? (nv == (NV)(UV)nv) : (nv == (NV)(IV)nv);
163 int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL);
165 return !(num_type & IS_NUMBER_NOT_INT);
172 mouse_tc_Str(pTHX_ SV* const sv) {
174 return SvOK(sv) && !SvROK(sv) && !isGV(sv);
178 mouse_tc_ClassName(pTHX_ SV* const sv){
180 return is_class_loaded(sv);
184 mouse_tc_RoleName(pTHX_ SV* const sv) {
186 if(is_class_loaded(sv)){
197 call_pv("Mouse::Util::get_metaclass_by_name", G_SCALAR);
202 ok = is_an_instance_of("Mouse::Meta::Role", meta);
213 mouse_tc_Ref(pTHX_ SV* const sv) {
219 mouse_tc_ScalarRef(pTHX_ SV* const sv) {
221 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && (SvTYPE(SvRV(sv)) <= SVt_PVLV && !isGV(SvRV(sv)));
225 mouse_tc_ArrayRef(pTHX_ SV* const sv) {
227 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVAV;
231 mouse_tc_HashRef(pTHX_ SV* const sv) {
233 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVHV;
237 mouse_tc_CodeRef(pTHX_ SV* const sv) {
239 return SvROK(sv) && !SvOBJECT(SvRV(sv))&& SvTYPE(SvRV(sv)) == SVt_PVCV;
243 mouse_tc_RegexpRef(pTHX_ SV* const sv) {
249 mouse_tc_GlobRef(pTHX_ SV* const sv) {
251 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv));
255 mouse_tc_FileHandle(pTHX_ SV* const sv) {
259 /* see pp_fileno() in pp_sys.c and Scalar::Util::openhandle() */
261 gv = (GV*)(SvROK(sv) ? SvRV(sv) : sv);
262 if(isGV(gv) || SvTYPE(gv) == SVt_PVIO){
263 IO* const io = isGV(gv) ? GvIO(gv) : (IO*)gv;
265 if(io && ( IoIFP(io) || SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar) )){
270 return is_an_instance_of("IO::Handle", sv);
274 mouse_tc_Object(pTHX_ SV* const sv) {
276 return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv);
279 /* Parameterized type constraints */
282 mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) {
283 if(mouse_tc_ArrayRef(aTHX_ sv)){
284 AV* const av = (AV*)SvRV(sv);
285 I32 const len = av_len(av) + 1;
287 for(i = 0; i < len; i++){
288 SV* const value = *av_fetch(av, i, TRUE);
290 if(!mouse_tc_check(aTHX_ param, value)){
300 mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) {
301 if(mouse_tc_HashRef(aTHX_ sv)){
302 HV* const hv = (HV*)SvRV(sv);
306 while((he = hv_iternext(hv))){
307 SV* const value = hv_iterval(hv, he);
309 if(!mouse_tc_check(aTHX_ param, value)){
319 mouse_parameterized_Maybe(pTHX_ SV* const param, SV* const sv) {
321 return mouse_tc_check(aTHX_ param, sv);
327 * This class_type generator is taken from Scalar::Util::Instance
330 #define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION
331 typedef struct sui_cxt{
336 #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj)
337 #define MG_klass_pv(mg) ((mg)->mg_ptr)
338 #define MG_klass_len(mg) ((mg)->mg_len)
341 mouse_canonicalize_package_name(const char* name){
343 /* "::Foo" -> "Foo" */
344 if(name[0] == ':' && name[1] == ':'){
348 /* "main::main::main::Foo" -> "Foo" */
349 while(strnEQ(name, "main::", sizeof("main::")-1)){
350 name += sizeof("main::")-1;
357 mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){
358 AV* const linearized_isa = mro_get_linear_isa(instance_stash);
359 SV** svp = AvARRAY(linearized_isa);
360 SV** const end = svp + AvFILLp(linearized_isa) + 1;
364 if(strEQ(klass_pv, mouse_canonicalize_package_name(SvPVX(*svp)))){
373 mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){
375 assert(SvTYPE(stash) == SVt_PVHV);
377 if(IsObject(instance)){
379 HV* const instance_stash = SvSTASH(SvRV(instance));
380 GV* const instance_isa = gv_fetchmeth_autoload(instance_stash, "isa", sizeof("isa")-1, 0);
382 /* the instance has no own isa method */
383 if(instance_isa == NULL || GvCV(instance_isa) == GvCV(MY_CXT.universal_isa)){
384 return stash == instance_stash
385 || mouse_lookup_isa(aTHX_ instance_stash, HvNAME_get(stash));
387 /* the instance has its own isa method */
398 mPUSHp(HvNAME_get(stash), HvNAMELEN_get(stash));
401 call_sv((SV*)instance_isa, G_SCALAR);
405 retval = SvTRUEx(POPs);
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));
424 static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */
427 mouse_tc_parameterize(pTHX_ const char* const name, check_fptr_t const fptr, SV* const param) {
430 xsub = newXS(name, XS_Mouse_parameterized_check, __FILE__);
431 CvXSUBANY(xsub).any_ptr = sv_magicext(
433 param, /* mg_obj: refcnt will be increased */
435 &mouse_util_type_constraints_vtbl,
436 (void*)fptr, /* mg_ptr */
437 0 /* mg_len: 0 for static data */
441 sv_2mortal((SV*)xsub);
448 mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){
450 const char* klass_pv = SvPV_const(klass, klass_len);
454 klass_pv = mouse_canonicalize_package_name(klass_pv);
456 if(strNE(klass_pv, "UNIVERSAL")){
457 param = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD);
458 fptr = (void*)mouse_is_an_instance_of;
463 fptr = (void*)mouse_is_an_instance_of_universal;
466 return mouse_tc_parameterize(aTHX_ predicate_name, fptr, param);
469 XS(XS_Mouse_parameterized_check) {
472 MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
475 croak("Too few arguments for parameterized check functions");
479 ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, ST(0)) );
484 setup_my_cxt(pTHX_ pMY_CXT){
485 MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV);
486 SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa);
489 MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints
492 VERSIONCHECK: DISABLE
497 setup_my_cxt(aTHX_ aMY_CXT);
507 setup_my_cxt(aTHX_ aMY_CXT);
508 PERL_UNUSED_VAR(items);
511 #endif /* !USE_ITHREADS */
514 Item(SV* sv = &PL_sv_undef)
518 Undef = MOUSE_TC_UNDEF
519 Defined = MOUSE_TC_DEFINED
521 Value = MOUSE_TC_VALUE
526 ScalarRef = MOUSE_TC_SCALAR_REF
527 ArrayRef = MOUSE_TC_ARRAY_REF
528 HashRef = MOUSE_TC_HASH_REF
529 CodeRef = MOUSE_TC_CODE_REF
530 GlobRef = MOUSE_TC_GLOB_REF
531 FileHandle = MOUSE_TC_FILEHANDLE
532 RegexpRef = MOUSE_TC_REGEXP_REF
533 Object = MOUSE_TC_OBJECT
534 ClassName = MOUSE_TC_CLASS_NAME
535 RoleName = MOUSE_TC_ROLE_NAME
538 ST(0) = boolSV( mouse_builtin_tc_check(aTHX_ ix, sv) );
543 _parameterize_ArrayRef_for(SV* param)
545 _parameterize_ArrayRef_for = MOUSE_TC_ARRAY_REF
546 _parameterize_HashRef_for = MOUSE_TC_HASH_REF
547 _parameterize_Maybe_for = MOUSE_TC_MAYBE
551 SV* const tc_code = mcall0s(param, "_compiled_type_constraint");
552 if(!(SvROK(tc_code) && SvTYPE(SvRV(tc_code)) == SVt_PVCV)){
553 croak("_compiled_type_constraint didn't return a CODE reference");
557 case MOUSE_TC_ARRAY_REF:
558 fptr = mouse_parameterized_ArrayRef;
560 case MOUSE_TC_HASH_REF:
561 fptr = mouse_parameterized_HashRef;
563 default: /* Maybe type */
564 fptr = mouse_parameterized_Maybe;
566 RETVAL = mouse_tc_parameterize(aTHX_ NULL, fptr, tc_code);