typedef int (*check_fptr_t)(pTHX_ SV* const data, SV* const sv);
+/*
+ NOTE: mouse_tc_check() handles GETMAGIC
+*/
int
mouse_tc_check(pTHX_ SV* const tc_code, SV* const sv) {
- CV* cv;
- assert(SvROK(tc_code) && SvTYPE(SvRV(tc_code)));
-
- cv = (CV*)SvRV(tc_code);
+ CV* const cv = (CV*)SvRV(tc_code);
+ assert(SvTYPE(cv) == SVt_PVCV);
- if(CvISXSUB(cv)){ /* can be built-in tc */
- if(CvXSUB(cv) == XS_Mouse__Util__TypeConstraints_Item){
- assert(CvXSUBANY(cv).any_iv > 0);
+ SvGETMAGIC(sv);
+ if(CvXSUB(cv) == XS_Mouse_constraint_check){ /* built-in type constraints */
+ MAGIC* const mg = (MAGIC*)CvXSUBANY(cv).any_ptr;
- return mouse_builtin_tc_check(aTHX_ CvXSUBANY(cv).any_iv, sv);
- }
- else if(CvXSUB(cv) == XS_Mouse_parameterized_check){
- MAGIC* const mg = (MAGIC*)CvXSUBANY(cv).any_ptr;
+ assert(CvXSUBANY(cv).any_ptr != NULL);
+ assert(mg->mg_ptr != NULL);
- assert(CvXSUBANY(cv).any_ptr != NULL);
- return CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj /* stash */, sv);
- }
+ /* call the check function directly, skipping call_sv() */
+ return CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, sv);
}
-
- /* user-defined type constraints */
- {
+ else { /* custom */
int ok;
dSP;
call_sv(tc_code, G_SCALAR);
SPAGAIN;
- ok = SvTRUEx(POPs);
+ ok = sv_true(POPs);
PUTBACK;
FREETMPS;
}
}
-int
-mouse_builtin_tc_check(pTHX_ mouse_tc const tc, SV* const sv) {
- switch(tc){
- case MOUSE_TC_ANY: return mouse_tc_Any(aTHX_ sv);
- case MOUSE_TC_ITEM: return mouse_tc_Any(aTHX_ sv);
- case MOUSE_TC_UNDEF: return mouse_tc_Undef(aTHX_ sv);
- case MOUSE_TC_DEFINED: return mouse_tc_Defined(aTHX_ sv);
- case MOUSE_TC_BOOL: return mouse_tc_Bool(aTHX_ sv);
- case MOUSE_TC_VALUE: return mouse_tc_Value(aTHX_ sv);
- case MOUSE_TC_REF: return mouse_tc_Ref(aTHX_ sv);
- case MOUSE_TC_STR: return mouse_tc_Str(aTHX_ sv);
- case MOUSE_TC_NUM: return mouse_tc_Num(aTHX_ sv);
- case MOUSE_TC_INT: return mouse_tc_Int(aTHX_ sv);
- case MOUSE_TC_SCALAR_REF: return mouse_tc_ScalarRef(aTHX_ sv);
- case MOUSE_TC_ARRAY_REF: return mouse_tc_ArrayRef(aTHX_ sv);
- case MOUSE_TC_HASH_REF: return mouse_tc_HashRef(aTHX_ sv);
- case MOUSE_TC_CODE_REF: return mouse_tc_CodeRef(aTHX_ sv);
- case MOUSE_TC_GLOB_REF: return mouse_tc_GlobRef(aTHX_ sv);
- case MOUSE_TC_FILEHANDLE: return mouse_tc_FileHandle(aTHX_ sv);
- case MOUSE_TC_REGEXP_REF: return mouse_tc_RegexpRef(aTHX_ sv);
- case MOUSE_TC_OBJECT: return mouse_tc_Object(aTHX_ sv);
- case MOUSE_TC_CLASS_NAME: return mouse_tc_ClassName(aTHX_ sv);
- case MOUSE_TC_ROLE_NAME: return mouse_tc_RoleName(aTHX_ sv);
- default:
- /* custom type constraints */
- NOOP;
- }
-
- croak("Custom type constraint is not yet implemented");
- return FALSE; /* not reached */
-}
-
-
/*
The following type check functions return an integer, not a bool, to keep them simple,
so if you assign these return value to bool variable, you must use "expr ? TRUE : FALSE".
*/
int
-mouse_tc_Any(pTHX_ SV* const sv PERL_UNUSED_DECL) {
+mouse_tc_Any(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv PERL_UNUSED_DECL) {
assert(sv);
return TRUE;
}
int
-mouse_tc_Bool(pTHX_ SV* const sv) {
+mouse_tc_Bool(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
- if(SvOK(sv)){
+
+ if(sv_true(sv)){
if(SvIOKp(sv)){
- return SvIVX(sv) == 1 || SvIVX(sv) == 0;
+ return SvIVX(sv) == 1;
}
else if(SvNOKp(sv)){
- return SvNVX(sv) == 1.0 || SvNVX(sv) == 0.0;
+ return SvNVX(sv) == 1.0;
}
- else if(SvPOKp(sv)){ /* "" or "1" or "0" */
- return SvCUR(sv) == 0
- || ( SvCUR(sv) == 1 && ( SvPVX(sv)[0] == '1' || SvPVX(sv)[0] == '0' ) );
+ else if(SvPOKp(sv)){ /* "1" */
+ return SvCUR(sv) == 1 && SvPVX(sv)[0] == '1';
}
else{
return FALSE;
}
}
else{
+ /* any false value must be boolean */
return TRUE;
}
}
int
-mouse_tc_Undef(pTHX_ SV* const sv) {
+mouse_tc_Undef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return !SvOK(sv);
}
int
-mouse_tc_Defined(pTHX_ SV* const sv) {
+mouse_tc_Defined(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return SvOK(sv);
}
int
-mouse_tc_Value(pTHX_ SV* const sv) {
+mouse_tc_Value(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return SvOK(sv) && !SvROK(sv);
}
int
-mouse_tc_Num(pTHX_ SV* const sv) {
+mouse_tc_Num(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return LooksLikeNumber(sv);
}
int
-mouse_tc_Int(pTHX_ SV* const sv) {
+mouse_tc_Int(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
- if(SvIOKp(sv)){
+ if(SvIOKp(sv) || SvNOKp(sv)){
return TRUE;
}
- else if(SvNOKp(sv)){
- NV const nv = SvNVX(sv);
- return nv > 0 ? (nv == (NV)(UV)nv) : (nv == (NV)(IV)nv);
- }
else if(SvPOKp(sv)){
int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL);
if(num_type){
}
int
-mouse_tc_Str(pTHX_ SV* const sv) {
+mouse_tc_Str(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return SvOK(sv) && !SvROK(sv) && !isGV(sv);
}
int
-mouse_tc_ClassName(pTHX_ SV* const sv){
+mouse_tc_ClassName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv){
assert(sv);
return is_class_loaded(sv);
}
int
-mouse_tc_RoleName(pTHX_ SV* const sv) {
+mouse_tc_RoleName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
if(is_class_loaded(sv)){
int ok;
- SV* meta;
- dSP;
ENTER;
SAVETMPS;
- PUSHMARK(SP);
- XPUSHs(sv);
- PUTBACK;
- call_pv("Mouse::Util::get_metaclass_by_name", G_SCALAR);
- SPAGAIN;
- meta = POPs;
- PUTBACK;
-
- ok = is_an_instance_of("Mouse::Meta::Role", meta);
+ ok = is_an_instance_of("Mouse::Meta::Role", get_metaclass(sv));
FREETMPS;
LEAVE;
}
int
-mouse_tc_Ref(pTHX_ SV* const sv) {
+mouse_tc_Ref(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return SvROK(sv);
}
int
-mouse_tc_ScalarRef(pTHX_ SV* const sv) {
+mouse_tc_ScalarRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* sv) {
assert(sv);
- return SvROK(sv) && !SvOBJECT(SvRV(sv)) && (SvTYPE(SvRV(sv)) <= SVt_PVLV && !isGV(SvRV(sv)));
+ if(SvROK(sv)){
+ sv = SvRV(sv);
+ return !SvOBJECT(sv) && (SvTYPE(sv) <= SVt_PVLV && !isGV(sv));
+ }
+ return FALSE;
}
int
-mouse_tc_ArrayRef(pTHX_ SV* const sv) {
+mouse_tc_ArrayRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
- return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVAV;
+ return IsArrayRef(sv);
}
int
-mouse_tc_HashRef(pTHX_ SV* const sv) {
+mouse_tc_HashRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
- return SvROK(sv) && !SvOBJECT(SvRV(sv)) && SvTYPE(SvRV(sv)) == SVt_PVHV;
+ return IsHashRef(sv);
}
int
-mouse_tc_CodeRef(pTHX_ SV* const sv) {
+mouse_tc_CodeRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
- return SvROK(sv) && !SvOBJECT(SvRV(sv))&& SvTYPE(SvRV(sv)) == SVt_PVCV;
+ return IsCodeRef(sv);
}
int
-mouse_tc_RegexpRef(pTHX_ SV* const sv) {
+mouse_tc_RegexpRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return SvRXOK(sv);
}
int
-mouse_tc_GlobRef(pTHX_ SV* const sv) {
+mouse_tc_GlobRef(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return SvROK(sv) && !SvOBJECT(SvRV(sv)) && isGV(SvRV(sv));
}
int
-mouse_tc_FileHandle(pTHX_ SV* const sv) {
+mouse_tc_FileHandle(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
GV* gv;
assert(sv);
}
int
-mouse_tc_Object(pTHX_ SV* const sv) {
+mouse_tc_Object(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
assert(sv);
return SvROK(sv) && SvOBJECT(SvRV(sv)) && !SvRXOK(sv);
}
+/* Parameterized type constraints */
+
+static int
+mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) {
+ if(IsArrayRef(sv)){
+ AV* const av = (AV*)SvRV(sv);
+ I32 const len = av_len(av) + 1;
+ I32 i;
+ for(i = 0; i < len; i++){
+ SV* const value = *av_fetch(av, i, TRUE);
+ if(!mouse_tc_check(aTHX_ param, value)){
+ return FALSE;
+ }
+ }
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static int
+mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) {
+ if(mouse_tc_HashRef(aTHX_ NULL, sv)){
+ HV* const hv = (HV*)SvRV(sv);
+ HE* he;
+
+ hv_iterinit(hv);
+ while((he = hv_iternext(hv))){
+ SV* const value = hv_iterval(hv, he);
+ if(!mouse_tc_check(aTHX_ param, value)){
+ hv_iterinit(hv); /* reset */
+ return FALSE;
+ }
+ }
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static int
+mouse_parameterized_Maybe(pTHX_ SV* const param, SV* const sv) {
+ if(SvOK(sv)){
+ return mouse_tc_check(aTHX_ param, sv);
+ }
+ return TRUE;
+}
+
+static int
+mouse_types_union_check(pTHX_ AV* const types, SV* const sv) {
+ I32 const len = AvFILLp(types) + 1;
+ I32 i;
+
+ for(i = 0; i < len; i++){
+ if(mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+static int
+mouse_types_check(pTHX_ AV* const types, SV* const sv) {
+ I32 const len = AvFILLp(types) + 1;
+ I32 i;
+
+ ENTER;
+ SAVE_DEFSV;
+ DEFSV_set(sv);
+
+ for(i = 0; i < len; i++){
+ if(!mouse_tc_check(aTHX_ AvARRAY(types)[i], sv)){
+ LEAVE;
+ return FALSE;
+ }
+ }
+
+ LEAVE;
+
+ return TRUE;
+}
+
/*
* This class_type generator is taken from Scalar::Util::Instance
*/
#define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION
typedef struct sui_cxt{
GV* universal_isa;
+ GV* universal_can;
} my_cxt_t;
START_MY_CXT
return FALSE;
}
+#define find_method_pvn(a, b, c) mouse_stash_find_method(aTHX_ a, b, c)
+#define find_method_pvs(a, b) mouse_stash_find_method(aTHX_ a, STR_WITH_LEN(b))
+
+static inline GV*
+mouse_stash_find_method(pTHX_ HV* const stash, const char* const name, I32 const namelen){
+ GV** const gvp = (GV**)hv_fetch(stash, name, namelen, FALSE);
+ if(gvp && isGV(*gvp) && GvCV(*gvp)){ /* shortcut */
+ return *gvp;
+ }
+
+ return gv_fetchmeth_autoload(stash, name, namelen, 0);
+}
+
int
mouse_is_an_instance_of(pTHX_ HV* const stash, SV* const instance){
assert(stash);
if(IsObject(instance)){
dMY_CXT;
HV* const instance_stash = SvSTASH(SvRV(instance));
- GV* const instance_isa = gv_fetchmeth_autoload(instance_stash, "isa", sizeof("isa")-1, 0);
+ GV* const instance_isa = find_method_pvs(instance_stash, "isa");
/* the instance has no own isa method */
if(instance_isa == NULL || GvCV(instance_isa) == GvCV(MY_CXT.universal_isa)){
call_sv((SV*)instance_isa, G_SCALAR);
SPAGAIN;
-
- retval = SvTRUEx(POPs);
-
+ retval = sv_true(POPs);
PUTBACK;
FREETMPS;
return SvROK(sv) && SvOBJECT(SvRV(sv));
}
+static int
+mouse_can_methods(pTHX_ AV* const methods, SV* const instance){
+ if(IsObject(instance)){
+ dMY_CXT;
+ HV* const mystash = SvSTASH(SvRV(instance));
+ GV* const mycan = find_method_pvs(mystash, "can");
+ bool const use_builtin = (mycan == NULL || GvCV(mycan) == GvCV(MY_CXT.universal_can)) ? TRUE : FALSE;
+ I32 const len = AvFILLp(methods) + 1;
+ I32 i;
+ for(i = 0; i < len; i++){
+ SV* const name = MOUSE_av_at(methods, i);
+
+ if(use_builtin){
+ if(!find_method_pvn(mystash, SvPVX(name), SvCUR(name))){
+ return FALSE;
+ }
+ }
+ else{
+ bool ok;
+ dSP;
+
+ ENTER;
+ SAVETMPS;
+
+ PUSHMARK(SP);
+ EXTEND(SP, 2);
+ PUSHs(instance);
+ PUSHs(sv_mortalcopy(name));
+ PUTBACK;
+
+ call_method("can", G_SCALAR);
+
+ SPAGAIN;
+ ok = sv_true(POPs);
+ PUTBACK;
+
+ FREETMPS;
+ LEAVE;
+
+ if(!ok){
+ return FALSE;
+ }
+ }
+ }
+ return TRUE;
+ }
+ return FALSE;
+}
+
static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */
+static CV*
+mouse_tc_generate(pTHX_ const char* const name, check_fptr_t const fptr, SV* const param) {
+ CV* xsub;
+
+ xsub = newXS(name, XS_Mouse_constraint_check, __FILE__);
+ CvXSUBANY(xsub).any_ptr = sv_magicext(
+ (SV*)xsub,
+ param, /* mg_obj: refcnt will be increased */
+ PERL_MAGIC_ext,
+ &mouse_util_type_constraints_vtbl,
+ (char*)fptr, /* mg_ptr */
+ 0 /* mg_len: 0 for static data */
+ );
+
+ if(!name){
+ sv_2mortal((SV*)xsub);
+ }
+
+ return xsub;
+}
+
CV*
mouse_generate_isa_predicate_for(pTHX_ SV* const klass, const char* const predicate_name){
STRLEN klass_len;
const char* klass_pv = SvPV_const(klass, klass_len);
- CV* xsub;
- SV* mg_obj;
- void* mg_ptr;
+ SV* param;
+ check_fptr_t fptr;
klass_pv = mouse_canonicalize_package_name(klass_pv);
if(strNE(klass_pv, "UNIVERSAL")){
- mg_obj = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD);
- mg_ptr = (void*)mouse_is_an_instance_of;
+ param = (SV*)gv_stashpvn(klass_pv, klass_len, GV_ADD);
+ fptr = (check_fptr_t)mouse_is_an_instance_of;
}
else{
- mg_obj = NULL;
- mg_ptr = (void*)mouse_is_an_instance_of_universal;
+ param = NULL;
+ fptr = (check_fptr_t)mouse_is_an_instance_of_universal;
}
- xsub = newXS(predicate_name, XS_Mouse_parameterized_check, __FILE__);
-
- CvXSUBANY(xsub).any_ptr = sv_magicext(
- (SV*)xsub,
- mg_obj,
- PERL_MAGIC_ext,
- &mouse_util_type_constraints_vtbl,
- mg_ptr,
- 0 /* indicates static data */
- );
+ return mouse_tc_generate(aTHX_ predicate_name, fptr, param);
+}
- if(!predicate_name){
- sv_2mortal((SV*)xsub);
+CV*
+mouse_generate_can_predicate_for(pTHX_ SV* const methods, const char* const predicate_name){
+ AV* av;
+ AV* const param = newAV_mortal();
+ I32 len;
+ I32 i;
+
+ must_ref(methods, "an ARRAY ref for method names", SVt_PVAV);
+ av = (AV*)SvRV(methods);
+
+ len = av_len(av) + 1;
+ for(i = 0; i < len; i++){
+ SV* const name = *av_fetch(av, i, TRUE);
+ STRLEN pvlen;
+ const char* const pv = SvPV_const(name, pvlen);
+
+ av_push(param, newSVpvn_share(pv, pvlen, 0U));
}
- return xsub;
+ return mouse_tc_generate(aTHX_ predicate_name, (check_fptr_t)mouse_can_methods, (SV*)param);
}
-XS(XS_Mouse_parameterized_check) {
+
+XS(XS_Mouse_constraint_check) {
dVAR;
dXSARGS;
MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
if(items < 1){
- croak("Too few arguments for parameterized check functions");
+ croak("Too few arguments for type constraint check functions");
}
SvGETMAGIC( ST(0) );
setup_my_cxt(pTHX_ pMY_CXT){
MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV);
SvREFCNT_inc_simple_void_NN(MY_CXT.universal_isa);
+
+ MY_CXT.universal_can = gv_fetchpvs("UNIVERSAL::can", GV_ADD, SVt_PVCV);
+ SvREFCNT_inc_simple_void_NN(MY_CXT.universal_can);
}
+#define DEFINE_TC(name) mouse_tc_generate(aTHX_ "Mouse::Util::TypeConstraints::" STRINGIFY(name), CAT2(mouse_tc_, name), NULL)
+
MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Util::TypeConstraints
PROTOTYPES: DISABLE
{
MY_CXT_INIT;
setup_my_cxt(aTHX_ aMY_CXT);
+
+ /* setup built-in type constraints */
+ DEFINE_TC(Any);
+ DEFINE_TC(Undef);
+ DEFINE_TC(Defined);
+ DEFINE_TC(Bool);
+ DEFINE_TC(Value);
+ DEFINE_TC(Ref);
+ DEFINE_TC(Str);
+ DEFINE_TC(Num);
+ DEFINE_TC(Int);
+ DEFINE_TC(ScalarRef);
+ DEFINE_TC(ArrayRef);
+ DEFINE_TC(HashRef);
+ DEFINE_TC(CodeRef);
+ DEFINE_TC(GlobRef);
+ DEFINE_TC(FileHandle);
+ DEFINE_TC(RegexpRef);
+ DEFINE_TC(Object);
+ DEFINE_TC(ClassName);
+ DEFINE_TC(RoleName);
}
#ifdef USE_ITHREADS
#endif /* !USE_ITHREADS */
-void
-Item(SV* sv = &PL_sv_undef)
+#define MOUSE_TC_MAYBE 0
+#define MOUSE_TC_ARRAY_REF 1
+#define MOUSE_TC_HASH_REF 2
+
+CV*
+_parameterize_ArrayRef_for(SV* param)
ALIAS:
- Any = MOUSE_TC_ANY
- Item = MOUSE_TC_ITEM
- Undef = MOUSE_TC_UNDEF
- Defined = MOUSE_TC_DEFINED
- Bool = MOUSE_TC_BOOL
- Value = MOUSE_TC_VALUE
- Ref = MOUSE_TC_REF
- Str = MOUSE_TC_STR
- Num = MOUSE_TC_NUM
- Int = MOUSE_TC_INT
- ScalarRef = MOUSE_TC_SCALAR_REF
- ArrayRef = MOUSE_TC_ARRAY_REF
- HashRef = MOUSE_TC_HASH_REF
- CodeRef = MOUSE_TC_CODE_REF
- GlobRef = MOUSE_TC_GLOB_REF
- FileHandle = MOUSE_TC_FILEHANDLE
- RegexpRef = MOUSE_TC_REGEXP_REF
- Object = MOUSE_TC_OBJECT
- ClassName = MOUSE_TC_CLASS_NAME
- RoleName = MOUSE_TC_ROLE_NAME
+ _parameterize_ArrayRef_for = MOUSE_TC_ARRAY_REF
+ _parameterize_HashRef_for = MOUSE_TC_HASH_REF
+ _parameterize_Maybe_for = MOUSE_TC_MAYBE
CODE:
- SvGETMAGIC(sv);
- ST(0) = boolSV( mouse_builtin_tc_check(aTHX_ ix, sv) );
- XSRETURN(1);
+{
+ check_fptr_t fptr;
+ SV* const tc_code = mcall0s(param, "_compiled_type_constraint");
+ if(!IsCodeRef(tc_code)){
+ croak("_compiled_type_constraint didn't return a CODE reference");
+ }
+
+ switch(ix){
+ case MOUSE_TC_ARRAY_REF:
+ fptr = mouse_parameterized_ArrayRef;
+ break;
+ case MOUSE_TC_HASH_REF:
+ fptr = mouse_parameterized_HashRef;
+ break;
+ default: /* Maybe type */
+ fptr = mouse_parameterized_Maybe;
+ }
+ RETVAL = mouse_tc_generate(aTHX_ NULL, fptr, tc_code);
+}
+OUTPUT:
+ RETVAL
+
+MODULE = Mouse::Util::TypeConstraints PACKAGE = Mouse::Meta::TypeConstraint
+
+BOOT:
+ INSTALL_SIMPLE_READER(TypeConstraint, name);
+ INSTALL_SIMPLE_READER(TypeConstraint, parent);
+ INSTALL_SIMPLE_READER(TypeConstraint, message);
+
+ INSTALL_SIMPLE_READER(TypeConstraint, type_parameter);
+
+ INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint);
+ INSTALL_SIMPLE_READER(TypeConstraint, _compiled_type_coercion); /* Mouse specific */
+
+ INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion);
+ INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, __is_parameterized, type_parameter); /* Mouse specific */
+
+void
+compile_type_constraint(SV* self)
+CODE:
+{
+ AV* const checks = newAV_mortal();
+ SV* check; /* check function */
+ SV* parent;
+ SV* types_ref;
+
+ for(parent = get_slots(self, "parent"); parent; parent = get_slots(parent, "parent")){
+ check = get_slots(parent, "hand_optimized_type_constraint");
+ if(check && SvOK(check)){
+ if(!mouse_tc_CodeRef(aTHX_ NULL, check)){
+ croak("Not a CODE reference");
+ }
+ av_unshift(checks, 1);
+ av_store(checks, 0, newSVsv(check));
+ break; /* a hand optimized constraint must include all the parent */
+ }
+
+ check = get_slots(parent, "constraint");
+ if(check && SvOK(check)){
+ if(!mouse_tc_CodeRef(aTHX_ NULL, check)){
+ croak("Not a CODE reference");
+ }
+ av_unshift(checks, 1);
+ av_store(checks, 0, newSVsv(check));
+ }
+ }
+
+ check = get_slots(self, "constraint");
+ if(check && SvOK(check)){
+ if(!mouse_tc_CodeRef(aTHX_ NULL, check)){
+ croak("Not a CODE reference");
+ }
+ av_push(checks, newSVsv(check));
+ }
+
+ types_ref = get_slots(self, "type_constraints");
+ if(types_ref && SvOK(types_ref)){ /* union type */
+ AV* types;
+ AV* union_checks;
+ CV* union_check;
+ I32 len;
+ I32 i;
+ if(!IsArrayRef(types_ref)){
+ croak("Not an ARRAY reference");
+ }
+ types = (AV*)SvRV(types_ref);
+ len = av_len(types) + 1;
+
+ union_checks = newAV_mortal();
+
+ for(i = 0; i < len; i++){
+ SV* const tc = *av_fetch(types, i, TRUE);
+ SV* const c = get_slots(tc, "compiled_type_constraint");
+ if(!(c && mouse_tc_CodeRef(aTHX_ NULL, c))){
+ sv_dump(self);
+ croak("'%"SVf"' has no compiled type constraint", self);
+ }
+ av_push(union_checks, newSVsv(c));
+ }
+
+ union_check = mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_union_check, (SV*)union_checks);
+ av_push(checks, newRV_inc((SV*)union_check));
+ }
+
+ if(AvFILLp(checks) < 0){
+ check = newRV_inc((SV*)get_cv("Mouse::Util::TypeConstraints::Any", TRUE));
+ }
+ else{
+ check = newRV_inc((SV*)mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_check, (SV*)checks));
+ }
+ (void)set_slots(self, "compiled_type_constraint", check);
+}
projects / gitmo/Mouse.git / blobdiff