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))
18 mouse_tc_check(pTHX_ SV* const tc_code, SV* const sv) {
19 if(SvIOK(tc_code)){ /* built-in type constraints */
20 return mouse_builtin_tc_check(aTHX_ SvIVX(tc_code), sv);
33 call_sv(tc_code, G_SCALAR);
47 mouse_builtin_tc_check(pTHX_ mouse_tc const tc, SV* const sv) {
49 case MOUSE_TC_ANY: return mouse_tc_Any(aTHX_ sv);
50 case MOUSE_TC_ITEM: return mouse_tc_Any(aTHX_ sv);
51 case MOUSE_TC_UNDEF: return mouse_tc_Undef(aTHX_ sv);
52 case MOUSE_TC_DEFINED: return mouse_tc_Defined(aTHX_ sv);
53 case MOUSE_TC_BOOL: return mouse_tc_Bool(aTHX_ sv);
54 case MOUSE_TC_VALUE: return mouse_tc_Value(aTHX_ sv);
55 case MOUSE_TC_REF: return mouse_tc_Ref(aTHX_ sv);
56 case MOUSE_TC_STR: return mouse_tc_Str(aTHX_ sv);
57 case MOUSE_TC_NUM: return mouse_tc_Num(aTHX_ sv);
58 case MOUSE_TC_INT: return mouse_tc_Int(aTHX_ sv);
59 case MOUSE_TC_SCALAR_REF: return mouse_tc_ScalarRef(aTHX_ sv);
60 case MOUSE_TC_ARRAY_REF: return mouse_tc_ArrayRef(aTHX_ sv);
61 case MOUSE_TC_HASH_REF: return mouse_tc_HashRef(aTHX_ sv);
62 case MOUSE_TC_CODE_REF: return mouse_tc_CodeRef(aTHX_ sv);
63 case MOUSE_TC_GLOB_REF: return mouse_tc_GlobRef(aTHX_ sv);
64 case MOUSE_TC_FILEHANDLE: return mouse_tc_FileHandle(aTHX_ sv);
65 case MOUSE_TC_REGEXP_REF: return mouse_tc_RegexpRef(aTHX_ sv);
66 case MOUSE_TC_OBJECT: return mouse_tc_Object(aTHX_ sv);
67 case MOUSE_TC_CLASS_NAME: return mouse_tc_ClassName(aTHX_ sv);
68 case MOUSE_TC_ROLE_NAME: return mouse_tc_RoleName(aTHX_ sv);
70 /* custom type constraints */
74 croak("Custom type constraint is not yet implemented");
75 return FALSE; /* not reached */
80 The following type check functions return an integer, not a bool, to keep them simple,
81 so if you assign these return value to bool variable, you must use "expr ? TRUE : FALSE".
85 mouse_tc_Any(pTHX_ SV* const sv PERL_UNUSED_DECL) {
91 mouse_tc_Bool(pTHX_ SV* const sv) {
95 return SvIVX(sv) == 1 || SvIVX(sv) == 0;
98 return SvNVX(sv) == 1.0 || SvNVX(sv) == 0.0;
100 else if(SvPOKp(sv)){ /* "" or "1" or "0" */
101 return SvCUR(sv) == 0
102 || ( SvCUR(sv) == 1 && ( SvPVX(sv)[0] == '1' || SvPVX(sv)[0] == '0' ) );
114 mouse_tc_Undef(pTHX_ SV* const sv) {
120 mouse_tc_Defined(pTHX_ SV* const sv) {
126 mouse_tc_Value(pTHX_ SV* const sv) {
128 return SvOK(sv) && !SvROK(sv);
132 mouse_tc_Num(pTHX_ SV* const sv) {
134 return LooksLikeNumber(sv);
138 mouse_tc_Int(pTHX_ SV* const sv) {
144 NV const nv = SvNVX(sv);
145 return nv > 0 ? (nv == (NV)(UV)nv) : (nv == (NV)(IV)nv);
148 int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL);
150 return !(num_type & IS_NUMBER_NOT_INT);
157 mouse_tc_Str(pTHX_ SV* const sv) {
159 return SvOK(sv) && !SvROK(sv) && !isGV(sv);
163 mouse_tc_ClassName(pTHX_ SV* const sv){
165 return is_class_loaded(sv);
169 mouse_tc_RoleName(pTHX_ SV* const sv) {
171 if(is_class_loaded(sv)){
182 call_pv("Mouse::Util::get_metaclass_by_name", G_SCALAR);
187 ok = is_instance_of(meta, newSVpvs_flags("Mouse::Meta::Role", SVs_TEMP));
198 mouse_tc_Ref(pTHX_ SV* const sv) {
204 mouse_tc_ScalarRef(pTHX_ SV* const sv) {
206 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && (SvTYPE(SvRV(sv)) <= SVt_PVLV && !isGV(SvRV(sv)));
210 mouse_tc_ArrayRef(pTHX_ SV* const sv) {
212 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVAV;
216 mouse_tc_HashRef(pTHX_ SV* const sv) {
218 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVHV;
222 mouse_tc_CodeRef(pTHX_ SV* const sv) {
224 return SvROK(sv) && !SvOBJECT(SvRV(sv))&& SvTYPE(SvRV(sv)) == SVt_PVCV;
228 mouse_tc_RegexpRef(pTHX_ SV* const sv) {
234 mouse_tc_GlobRef(pTHX_ SV* const sv) {
236 return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv));
240 mouse_tc_FileHandle(pTHX_ SV* const sv) {
244 /* see pp_fileno() in pp_sys.c and Scalar::Util::openhandle() */
246 gv = (GV*)(SvROK(sv) ? SvRV(sv) : sv);
247 if(isGV(gv) || SvTYPE(gv) == SVt_PVIO){
248 IO* const io = isGV(gv) ? GvIO(gv) : (IO*)gv;
250 if(io && ( IoIFP(io) || SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar) )){
255 return is_instance_of(sv, newSVpvs_flags("IO::Handle", SVs_TEMP));
259 mouse_tc_Object(pTHX_ SV* const sv) {
261 return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv);
265 * This class_type generator is taken from Scalar::Util::Instance
268 #define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION
269 typedef struct sui_cxt{
274 #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj)
275 #define MG_klass_pv(mg) ((mg)->mg_ptr)
276 #define MG_klass_len(mg) ((mg)->mg_len)
278 static MGVTBL mouse_util_type_constraints_vtbl;
281 canonicalize_package_name(const char* name){
283 /* "::Foo" -> "Foo" */
284 if(name[0] == ':' && name[1] == ':'){
288 /* "main::main::main::Foo" -> "Foo" */
289 while(strnEQ(name, "main::", sizeof("main::")-1)){
290 name += sizeof("main::")-1;
297 lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){
298 AV* const linearized_isa = mro_get_linear_isa(instance_stash);
299 SV** svp = AvARRAY(linearized_isa);
300 SV** const end = svp + AvFILLp(linearized_isa) + 1;
304 if(strEQ(klass_pv, canonicalize_package_name(SvPVX(*svp)))){
313 instance_isa(pTHX_ SV* const instance, const MAGIC* const mg){
315 HV* const instance_stash = SvSTASH(SvRV(instance));
316 GV* const instance_isa = gv_fetchmeth_autoload(instance_stash, "isa", sizeof("isa")-1, 0);
318 /* the instance has no own isa method */
319 if(instance_isa == NULL || GvCV(instance_isa) == GvCV(MY_CXT.universal_isa)){
320 return MG_klass_stash(mg) == instance_stash
321 || lookup_isa(aTHX_ instance_stash, MG_klass_pv(mg));
323 /* the instance has its own isa method */
334 mPUSHp(MG_klass_pv(mg), MG_klass_len(mg));
337 call_sv((SV*)instance_isa, G_SCALAR);
341 retval = SvTRUEx(POPs);
352 XS(XS_isa_check); /* -W */
358 assert(XSANY.any_ptr != NULL);
362 croak("Not enough arguments for is-a predicate");
365 croak("Too many arguments for is-a predicate");
372 ST(0) = boolSV( SvROK(sv) && SvOBJECT(SvRV(sv)) && instance_isa(aTHX_ sv, (MAGIC*)XSANY.any_ptr) );
376 XS(XS_isa_check_for_universal); /* -W */
377 XS(XS_isa_check_for_universal){
385 croak("Not enough arguments for is-a predicate");
388 croak("Too many arguments for is-a predicate");
395 ST(0) = boolSV( SvROK(sv) && SvOBJECT(SvRV(sv)) );
400 setup_my_cxt(pTHX_ pMY_CXT){
401 MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV);
402 SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa);
405 MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints
412 setup_my_cxt(aTHX_ aMY_CXT);
422 setup_my_cxt(aTHX_ aMY_CXT);
423 PERL_UNUSED_VAR(items);
426 #endif /* !USE_ITHREADS */
429 _generate_class_type_for(SV* klass, const char* predicate_name = NULL)
433 const char* klass_pv;
438 croak("You must define a class name for generate_for");
440 klass_pv = SvPV_const(klass, klass_len);
441 klass_pv = canonicalize_package_name(klass_pv);
443 if(strNE(klass_pv, "UNIVERSAL")){
444 xsub = newXS(predicate_name, XS_isa_check, __FILE__);
446 stash = gv_stashpvn(klass_pv, klass_len, GV_ADD);
448 CvXSUBANY(xsub).any_ptr = sv_magicext(
450 (SV*)stash, /* mg_obj */
452 &mouse_util_type_constraints_vtbl,
453 klass_pv, /* mg_ptr */
454 klass_len /* mg_len */
458 xsub = newXS(predicate_name, XS_isa_check_for_universal, __FILE__);
461 if(predicate_name == NULL){ /* anonymous predicate */
462 XPUSHs( newRV_noinc((SV*)xsub) );
467 Item(SV* sv = &PL_sv_undef)
471 Undef = MOUSE_TC_UNDEF
472 Defined = MOUSE_TC_DEFINED
474 Value = MOUSE_TC_VALUE
479 ScalarRef = MOUSE_TC_SCALAR_REF
480 ArrayRef = MOUSE_TC_ARRAY_REF
481 HashRef = MOUSE_TC_HASH_REF
482 CodeRef = MOUSE_TC_CODE_REF
483 GlobRef = MOUSE_TC_GLOB_REF
484 FileHandle = MOUSE_TC_FILEHANDLE
485 RegexpRef = MOUSE_TC_REGEXP_REF
486 Object = MOUSE_TC_OBJECT
487 ClassName = MOUSE_TC_CLASS_NAME
488 RoleName = MOUSE_TC_ROLE_NAME
491 ST(0) = boolSV( mouse_builtin_tc_check(aTHX_ ix, sv) );