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)
279 mouse_canonicalize_package_name(const char* name){
281 /* "::Foo" -> "Foo" */
282 if(name[0] == ':' && name[1] == ':'){
286 /* "main::main::main::Foo" -> "Foo" */
287 while(strnEQ(name, "main::", sizeof("main::")-1)){
288 name += sizeof("main::")-1;
295 mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){
296 AV* const linearized_isa = mro_get_linear_isa(instance_stash);
297 SV** svp = AvARRAY(linearized_isa);
298 SV** const end = svp + AvFILLp(linearized_isa) + 1;
302 if(strEQ(klass_pv, mouse_canonicalize_package_name(SvPVX(*svp)))){
311 mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){
313 assert(SvTYPE(stash) == SVt_PVHV);
315 if(SvROK(instance) && SvOBJECT(SvRV(instance))){
317 HV* const instance_stash = SvSTASH(SvRV(instance));
318 GV* const instance_isa = gv_fetchmeth_autoload(instance_stash, "isa", sizeof("isa")-1, 0);
320 /* the instance has no own isa method */
321 if(instance_isa == NULL || GvCV(instance_isa) == GvCV(MY_CXT.universal_isa)){
322 return stash == instance_stash
323 || mouse_lookup_isa(aTHX_ instance_stash, HvNAME_get(stash));
325 /* the instance has its own isa method */
336 mPUSHp(HvNAME_get(stash), HvNAMELEN_get(stash));
339 call_sv((SV*)instance_isa, G_SCALAR);
343 retval = SvTRUEx(POPs);
357 mouse_is_an_instance_of_universal(pTHX_ SV* const data, SV* const sv){
358 PERL_UNUSED_ARG(data);
359 return SvROK(sv) && SvOBJECT(SvRV(sv));
362 static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */
365 mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){
367 const char* klass_pv = SvPV_const(klass, klass_len);
372 klass_pv = mouse_canonicalize_package_name(klass_pv);
374 if(strNE(klass_pv, "UNIVERSAL")){
375 mg_obj = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD);
376 mg_ptr = (void*)mouse_is_an_instance_of;
381 mg_ptr = (void*)mouse_is_an_instance_of_universal;
384 xsub = newXS(predicate_name, XS_Mouse_parameterized_check, __FILE__);
386 CvXSUBANY(xsub).any_ptr = sv_magicext(
390 &mouse_util_type_constraints_vtbl,
392 0 /* indicates static data */
396 sv_2mortal((SV*)xsub);
402 XS(XS_Mouse_parameterized_check) {
405 MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
406 typedef int (*check_fptr_t)(pTHX_ SV* const data, SV* const sv);
409 croak("Too few arguments for parameterized check functions");
413 ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, ST(0)) );
418 setup_my_cxt(pTHX_ pMY_CXT){
419 MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV);
420 SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa);
423 MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints
426 VERSIONCHECK: DISABLE
431 setup_my_cxt(aTHX_ aMY_CXT);
441 setup_my_cxt(aTHX_ aMY_CXT);
442 PERL_UNUSED_VAR(items);
445 #endif /* !USE_ITHREADS */
448 Item(SV* sv = &PL_sv_undef)
452 Undef = MOUSE_TC_UNDEF
453 Defined = MOUSE_TC_DEFINED
455 Value = MOUSE_TC_VALUE
460 ScalarRef = MOUSE_TC_SCALAR_REF
461 ArrayRef = MOUSE_TC_ARRAY_REF
462 HashRef = MOUSE_TC_HASH_REF
463 CodeRef = MOUSE_TC_CODE_REF
464 GlobRef = MOUSE_TC_GLOB_REF
465 FileHandle = MOUSE_TC_FILEHANDLE
466 RegexpRef = MOUSE_TC_REGEXP_REF
467 Object = MOUSE_TC_OBJECT
468 ClassName = MOUSE_TC_CLASS_NAME
469 RoleName = MOUSE_TC_ROLE_NAME
472 ST(0) = boolSV( mouse_builtin_tc_check(aTHX_ ix, sv) );