X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=xs-src%2FMouse.xs;h=e94d4769d1f0b83654f11310495b4b18c38b4786;hp=451e9f4fd63308c5c9331369751857884ae0a17d;hb=d06d926635763fa5687c429b5ad39938c564fbed;hpb=6fe2272b04003d989c299dae495c4c6f9730dabc diff --git a/xs-src/Mouse.xs b/xs-src/Mouse.xs index 451e9f4..e94d476 100644 --- a/xs-src/Mouse.xs +++ b/xs-src/Mouse.xs @@ -1,9 +1,459 @@ +#define NEED_newSVpvn_flags_GLOBAL #include "mouse.h" +/* keywords for methods/keys */ SV* mouse_package; SV* mouse_namespace; SV* mouse_methods; SV* mouse_name; +SV* mouse_get_attribute; +SV* mouse_get_attribute_list; +SV* mouse_coerce; + +#define MOUSE_xc_flags(a) SvUVX(MOUSE_av_at((a), MOUSE_XC_FLAGS)) +#define MOUSE_xc_gen(a) MOUSE_av_at((a), MOUSE_XC_GEN) +#define MOUSE_xc_stash(a) ( (HV*)MOUSE_av_at((a), MOUSE_XC_STASH) ) +#define MOUSE_xc_attrall(a) ( (AV*)MOUSE_av_at((a), MOUSE_XC_ATTRALL) ) +#define MOUSE_xc_buildall(a) ( (AV*)MOUSE_av_at((a), MOUSE_XC_BUILDALL) ) +#define MOUSE_xc_demolishall(a) ( (AV*)MOUSE_av_at((a), MOUSE_XC_DEMOLISHALL) ) + +enum mouse_xc_flags_t { + MOUSEf_XC_IS_IMMUTABLE = 0x0001, + MOUSEf_XC_IS_ANON = 0x0002, + MOUSEf_XC_HAS_BUILDARGS = 0x0004, + MOUSEf_XC_CONSTRUCTOR_IS_STRICT + = 0x0008, + + MOUSEf_XC_mask = 0xFFFF /* not used */ +}; + +/* Mouse XS Metaclass object */ +enum mouse_xc_ix_t{ + MOUSE_XC_FLAGS, + + MOUSE_XC_GEN, /* class generation */ + MOUSE_XC_STASH, /* symbol table hash */ + + MOUSE_XC_ATTRALL, /* all the attributes */ + MOUSE_XC_BUILDALL, /* all the BUILD methods */ + MOUSE_XC_DEMOLISHALL, /* all the DEMOLISH methods */ + + MOUSE_XC_last +}; + +enum mouse_modifier_t { + MOUSE_M_BEFORE, + MOUSE_M_AROUND, + MOUSE_M_AFTER, +}; + +static MGVTBL mouse_xc_vtbl; /* for identity */ + +static void +mouse_class_push_attribute_list(pTHX_ SV* const metaclass, AV* const attrall, HV* const seen){ + dSP; + I32 n; + + /* $meta->get_attribute_list */ + PUSHMARK(SP); + XPUSHs(metaclass); + PUTBACK; + + n = call_sv(mouse_get_attribute_list, G_ARRAY | G_METHOD); + for(NOOP; n > 0; n--){ + SV* name; + + SPAGAIN; + name = POPs; + PUTBACK; + + if(hv_exists_ent(seen, name, 0U)){ + continue; + } + (void)hv_store_ent(seen, name, &PL_sv_undef, 0U); + + av_push(attrall, newSVsv( mcall1(metaclass, mouse_get_attribute, name) )); + } +} + +static int +mouse_class_has_custom_buildargs(pTHX_ HV* const stash) { + XS(XS_Mouse__Object_BUILDARGS); /* prototype */ + + GV* const buildargs = gv_fetchmeth_autoload(stash, "BUILDARGS", sizeof("BUILDARGS")-1, 0); + + return buildargs && CvXSUB(GvCV(buildargs)) != XS_Mouse__Object_BUILDARGS; +} + +static void +mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, HV* const stash, AV* const xc) { + AV* const linearized_isa = mro_get_linear_isa(stash); + I32 const len = AvFILLp(linearized_isa); + I32 i; + U32 flags = 0x00; + AV* const attrall = newAV(); + AV* const buildall = newAV(); + AV* const demolishall = newAV(); + HV* const seen = newHV(); /* for attributes */ + + ENTER; + SAVETMPS; + + sv_2mortal((SV*)seen); + + /* old data will be delete at the end of the perl scope */ + av_delete(xc, MOUSE_XC_DEMOLISHALL, 0x00); + av_delete(xc, MOUSE_XC_BUILDALL, 0x00); + av_delete(xc, MOUSE_XC_ATTRALL, 0x00); + + SvREFCNT_inc_simple_void_NN(linearized_isa); + sv_2mortal((SV*)linearized_isa); + + /* update */ + + if(predicate_calls(metaclass, "is_immutable")){ + flags |= MOUSEf_XC_IS_IMMUTABLE; + } + + if(predicate_calls(metaclass, "is_anon_class")){ + flags |= MOUSEf_XC_IS_ANON; + } + + if(mouse_class_has_custom_buildargs(aTHX_ stash)){ + flags |= MOUSEf_XC_HAS_BUILDARGS; + } + + if(predicate_calls(metaclass, "__strict_constructor")){ + flags |= MOUSEf_XC_CONSTRUCTOR_IS_STRICT; + } + + av_store(xc, MOUSE_XC_FLAGS, newSVuv(flags)); + av_store(xc, MOUSE_XC_ATTRALL, (SV*)attrall); + av_store(xc, MOUSE_XC_BUILDALL, (SV*)buildall); + av_store(xc, MOUSE_XC_DEMOLISHALL, (SV*)demolishall); + + for(i = 0; i < len; i++){ + SV* const klass = MOUSE_av_at(linearized_isa, i); + HV* const st = gv_stashsv(klass, TRUE); + SV* meta; + GV* gv; + + gv = stash_fetchs(st, "BUILD", FALSE); + if(gv && GvCVu(gv)){ + av_unshift(buildall, 1); + av_store(buildall, 0, newRV_inc((SV*)GvCV(gv))); + } + + gv = stash_fetchs(st, "DEMOLISH", FALSE); + if(gv && GvCVu(gv)){ + av_push(demolishall, newRV_inc((SV*)GvCV(gv))); + } + + /* ATTRIBUTES */ + meta = get_metaclass(klass); + if(!SvOK(meta)){ + continue; /* skip non-Mouse classes */ + } + + mouse_class_push_attribute_list(aTHX_ meta, attrall, seen); + } + + FREETMPS; + LEAVE; + + sv_setuv(MOUSE_xc_gen(xc), mro_get_pkg_gen(stash)); +} + +static AV* +mouse_get_xc(pTHX_ SV* const metaclass) { + AV* xc; + SV* gen; + HV* stash; + MAGIC* mg; + + if(!IsObject(metaclass)){ + croak("Not a Mouse metaclass"); + } + + mg = mouse_mg_find(aTHX_ SvRV(metaclass), &mouse_xc_vtbl, 0x00); + if(!mg){ + SV* const package = get_slot(metaclass, mouse_package); + STRLEN len; + const char* const pv = SvPV_const(package, len); + + stash = gv_stashpvn(pv, len, TRUE); + xc = newAV(); + + mg = sv_magicext(SvRV(metaclass), (SV*)xc, PERL_MAGIC_ext, &mouse_xc_vtbl, pv, len); + SvREFCNT_dec(xc); /* refcnt++ in sv_magicext */ + + av_extend(xc, MOUSE_XC_last - 1); + + av_store(xc, MOUSE_XC_GEN, newSVuv(0U)); + av_store(xc, MOUSE_XC_STASH, (SV*)stash); + + SvREFCNT_inc_simple_void_NN(stash); + } + else{ + xc = (AV*)MOUSE_mg_obj(mg); + + assert(xc); + assert(SvTYPE(xc) == SVt_PVAV); + } + + gen = MOUSE_xc_gen(xc); + + if(SvUVX(gen) != 0U && MOUSE_xc_flags(xc) & MOUSEf_XC_IS_IMMUTABLE){ + return xc; + } + + stash = MOUSE_xc_stash(xc); + + if(SvUVX(gen) != mro_get_pkg_gen(stash)){ + mouse_class_update_xc(aTHX_ metaclass, stash, xc); + } + + return xc; +} + +static HV* +mouse_buildargs(pTHX_ SV* metaclass, SV* const klass, I32 ax, I32 items) { + HV* args; + + /* shift @_ */ + ax++; + items--; + + if(items == 1){ + SV* const args_ref = ST(0); + if(!IsHashRef(args_ref)){ + if(!metaclass){ metaclass = get_metaclass(klass); } + mouse_throw_error(metaclass, NULL, "Single parameters to new() must be a HASH ref"); + } + args = newHVhv((HV*)SvRV(args_ref)); + sv_2mortal((SV*)args); + } + else{ + I32 i; + + args = newHV_mortal(); + + if( (items % 2) != 0 ){ + if(!metaclass){ metaclass = get_metaclass(klass); } + mouse_throw_error(metaclass, NULL, "Odd number of parameters to new()"); + } + + for(i = 0; i < items; i += 2){ + (void)hv_store_ent(args, ST(i), newSVsv(ST(i+1)), 0U); + } + + } + return args; +} + +static void +mouse_report_unknown_args(pTHX_ SV* const meta, AV* const attrs, HV* const args) { + HV* const attr_map = newHV_mortal(); + SV* const unknown = newSVpvs_flags("", SVs_TEMP); + I32 const len = AvFILLp(attrs) + 1; + I32 i; + HE* he; + + for(i = 0; i < len; i++){ + SV* const attr = MOUSE_av_at(attrs, i); + AV* const xa = mouse_get_xa(aTHX_ attr); + SV* const init_arg = MOUSE_xa_init_arg(xa); + if(SvOK(init_arg)){ + (void)hv_store_ent(attr_map, init_arg, &PL_sv_undef, 0U); + } + } + + hv_iterinit(args); + while((he = hv_iternext(args))){ + SV* const key = hv_iterkeysv(he); + if(!hv_exists_ent(attr_map, key, 0U)){ + sv_catpvf(unknown, "%"SVf", ", key); + } + } + + if(SvCUR(unknown) > 0){ + SvCUR(unknown) -= 2; /* chop "," */ + } + else{ + sv_setpvs(unknown, "(unknown)"); + } + + mouse_throw_error(meta, NULL, + "Unknown attribute passed to the constructor of %"SVf": %"SVf, + mcall0(meta, mouse_name), unknown); +} + + + +static void +mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const args, bool const ignore_triggers) { + AV* const xc = mouse_get_xc(aTHX_ meta); + AV* const attrs = MOUSE_xc_attrall(xc); + I32 len = AvFILLp(attrs) + 1; + I32 i; + AV* triggers_queue = NULL; + I32 used = 0; + + assert(meta || object); + assert(args); + assert(SvTYPE(args) == SVt_PVHV); + + if(mg_find((SV*)args, PERL_MAGIC_tied)){ + croak("You cannot use tied HASH reference as initializing arguments"); + } + + if(!ignore_triggers){ + triggers_queue = newAV_mortal(); + } + + /* for each attribute */ + for(i = 0; i < len; i++){ + SV* const attr = MOUSE_av_at(attrs, i); + AV* const xa = mouse_get_xa(aTHX_ attr); + + SV* const slot = MOUSE_xa_slot(xa); + U16 const flags = (U16)MOUSE_xa_flags(xa); + SV* const init_arg = MOUSE_xa_init_arg(xa); + HE* he; + + if(SvOK(init_arg) && ( he = hv_fetch_ent(args, init_arg, FALSE, 0U) ) ){ + SV* value = HeVAL(he); + if(flags & MOUSEf_ATTR_HAS_TC){ + value = mouse_xa_apply_type_constraint(aTHX_ xa, value, flags); + } + value = set_slot(object, slot, value); + if(SvROK(value) && flags & MOUSEf_ATTR_IS_WEAK_REF){ + weaken_slot(object, slot); + } + if(flags & MOUSEf_ATTR_HAS_TRIGGER && triggers_queue){ + AV* const pair = newAV(); + av_push(pair, newSVsv( mcall0s(attr, "trigger") )); + av_push(pair, newSVsv(value)); + + av_push(triggers_queue, (SV*)pair); + } + used++; + } + else { /* no init arg */ + if(flags & (MOUSEf_ATTR_HAS_DEFAULT | MOUSEf_ATTR_HAS_BUILDER)){ + if(!(flags & MOUSEf_ATTR_IS_LAZY)){ + mouse_xa_set_default(aTHX_ xa, object); + } + } + else if(flags & MOUSEf_ATTR_IS_REQUIRED) { + mouse_throw_error(attr, NULL, "Attribute (%"SVf") is required", slot); + } + } + } /* for each attribute */ + + if(MOUSE_xc_flags(xc) & MOUSEf_XC_CONSTRUCTOR_IS_STRICT && used < HvUSEDKEYS(args)){ + mouse_report_unknown_args(aTHX_ meta, attrs, args); + } + + if(triggers_queue){ + len = AvFILLp(triggers_queue) + 1; + for(i = 0; i < len; i++){ + AV* const pair = (AV*)AvARRAY(triggers_queue)[i]; + SV* const trigger = AvARRAY(pair)[0]; + SV* const value = AvARRAY(pair)[1]; + + mcall1(object, trigger, value); + } + } + + if(MOUSE_xc_flags(xc) & MOUSEf_XC_IS_ANON){ + (void)set_slot(object, newSVpvs_flags("__METACLASS__", SVs_TEMP), meta); + } + +} + +static SV* +mouse_initialize_metaclass(pTHX_ SV* const klass) { + SV* meta = get_metaclass(klass); + + if(!SvOK(meta)){ + dSP; + PUSHMARK(SP); + + EXTEND(SP, 2); + mPUSHp("Mouse::Meta::Class", sizeof("Mouse::Meta::Class")-1); + PUSHs(klass); + PUTBACK; + + call_method("initialize", G_SCALAR); + SPAGAIN; + meta = POPs; + PUTBACK; + } + + return meta; +} + +static void +mouse_buildall(pTHX_ AV* const xc, SV* const object, SV* const args) { + AV* const buildall = MOUSE_xc_buildall(xc); + I32 const len = AvFILLp(buildall) + 1; + I32 i; + for(i = 0; i < len; i++){ + dSP; + + PUSHMARK(SP); + EXTEND(SP, 2); + PUSHs(object); + PUSHs(args); + PUTBACK; + + call_sv(AvARRAY(buildall)[i], G_VOID); + + /* discard a scalar which G_VOID returns */ + SPAGAIN; + (void)POPs; + PUTBACK; + } +} + +static AV* +mouse_get_modifier_storage(pTHX_ + SV* const meta, + enum mouse_modifier_t const m, SV* const name) { + static const char* const keys[] = { + "before", + "around", + "after", + }; + SV* const key = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_method_modifiers", keys[m])); + SV* table; + SV* storage_ref; + + must_defined(name, "a method name"); + + table = get_slot(meta, key); + + if(!table){ + /* $meta->{$key} = {} */ + table = sv_2mortal(newRV_noinc((SV*)newHV())); + set_slot(meta, key, table); + } + + storage_ref = get_slot(table, name); + + if(!storage_ref){ + storage_ref = sv_2mortal(newRV_noinc((SV*)newAV())); + set_slot(table, name, storage_ref); + } + else{ + if(!IsArrayRef(storage_ref)){ + croak("Modifier strorage for '%s' is not an ARRAY reference", keys[m]); + } + } + + return (AV*)SvRV(storage_ref); +} MODULE = Mouse PACKAGE = Mouse @@ -14,10 +464,15 @@ BOOT: mouse_namespace = newSVpvs_share("namespace"); mouse_methods = newSVpvs_share("methods"); mouse_name = newSVpvs_share("name"); + mouse_coerce = newSVpvs_share("coerce"); + + mouse_get_attribute = newSVpvs_share("get_attribute"); + mouse_get_attribute_list = newSVpvs_share("get_attribute_list"); MOUSE_CALL_BOOT(Mouse__Util); MOUSE_CALL_BOOT(Mouse__Util__TypeConstraints); MOUSE_CALL_BOOT(Mouse__Meta__Method__Accessor__XS); + MOUSE_CALL_BOOT(Mouse__Meta__Attribute); MODULE = Mouse PACKAGE = Mouse::Meta::Module @@ -31,7 +486,7 @@ HV* namespace(SV* self) CODE: { - SV* const package = get_slot(aTHX_ self, mouse_package); + SV* const package = get_slot(self, mouse_package); if(!(package && SvOK(package))){ croak("No package name defined"); } @@ -45,8 +500,8 @@ void add_method(SV* self, SV* name, SV* code, ...) CODE: { - SV* const package = get_slot(aTHX_ self, mouse_package); /* $self->{package} */ - SV* const methods = get_slot(aTHX_ self, mouse_methods); /* $self->{methods} */ + SV* const package = get_slot(self, mouse_package); /* $self->{package} */ + SV* const methods = get_slot(self, mouse_methods); /* $self->{methods} */ GV* gv; SV* code_ref; @@ -54,45 +509,22 @@ CODE: croak("No package name defined"); } - SvGETMAGIC(name); - SvGETMAGIC(code); - - if(!SvOK(name)){ - mouse_throw_error(self, NULL, "You must define a method name"); - } - if(!SvROK(code)){ - mouse_throw_error(self, NULL, "You must define a CODE reference"); - } + must_defined(name, "a method name"); + must_ref (code, "a CODE reference", SVt_NULL); /* any reftype is OK */ code_ref = code; if(SvTYPE(SvRV(code_ref)) != SVt_PVCV){ SV* sv = code_ref; /* used in tryAMAGICunDEREF */ SV** sp = &sv; /* used in tryAMAGICunDEREF */ tryAMAGICunDEREF(to_cv); /* try \&{$code} */ - if(SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV){ - mouse_throw_error(self, NULL, "Not a CODE reference"); - } + must_ref(code, "a CODE reference", SVt_PVCV); code_ref = sv; } /* *{$package . '::' . $name} -> *gv */ gv = gv_fetchpv(form("%"SVf"::%"SVf, package, name), GV_ADDMULTI, SVt_PVCV); - if(GvCVu(gv)){ /* delete *slot{gv} to work around "redefine" warning */ - SvREFCNT_dec(GvCV(gv)); - GvCV(gv) = NULL; - } - sv_setsv_mg((SV*)gv, code_ref); /* *gv = $code_ref */ - - set_slot(methods, name, code); /* $self->{methods}{$name} = $code */ - - /* TODO: name the CODE ref if it's anonymous */ - //code_entity = (CV*)SvRV(code_ref); - //if(CvANON(code_entity) - // && CvGV(code_entity) /* a cv under construction has no gv */ ){ - - // CvGV(code_entity) = gv; - // CvANON_off(code_entity); - //} + mouse_install_sub(aTHX_ gv, code_ref); + (void)set_slot(methods, name, code); /* $self->{methods}{$name} = $code */ } MODULE = Mouse PACKAGE = Mouse::Meta::Class @@ -100,6 +532,19 @@ MODULE = Mouse PACKAGE = Mouse::Meta::Class BOOT: INSTALL_SIMPLE_READER(Class, roles); INSTALL_SIMPLE_PREDICATE_WITH_KEY(Class, is_anon_class, anon_serial_id); + INSTALL_SIMPLE_READER(Class, is_immutable); + INSTALL_SIMPLE_READER_WITH_KEY(Class, __strict_constructor, strict_constructor); + + INSTALL_CLASS_HOLDER(Class, method_metaclass, "Mouse::Meta::Method"); + INSTALL_CLASS_HOLDER(Class, attribute_metaclass, "Mouse::Meta::Attribute"); + INSTALL_CLASS_HOLDER(Class, constructor_class, "Mouse::Meta::Method::Constructor::XS"); + INSTALL_CLASS_HOLDER(Class, destructor_class, "Mouse::Meta::Method::Destructor::XS"); + + newCONSTSUB(gv_stashpvs("Mouse::Meta::Method::Constructor::XS", TRUE), "_generate_constructor", + newRV_inc((SV*)get_cvs("Mouse::Object::new", TRUE))); + newCONSTSUB(gv_stashpvs("Mouse::Meta::Method::Destructor::XS", TRUE), "_generate_destructor", + newRV_inc((SV*)get_cvs("Mouse::Object::DESTROY", TRUE))); + void linearized_isa(SV* self) @@ -120,6 +565,40 @@ PPCODE: } } +void +get_all_attributes(SV* self) +PPCODE: +{ + AV* const xc = mouse_get_xc(aTHX_ self); + AV* const all_attrs = MOUSE_xc_attrall(xc); + I32 const len = AvFILLp(all_attrs) + 1; + I32 i; + + EXTEND(SP, len); + for(i = 0; i < len; i++){ + PUSHs( MOUSE_av_at(all_attrs, i) ); + } +} + +SV* +new_object(SV* meta, ...) +CODE: +{ + AV* const xc = mouse_get_xc(aTHX_ meta); + HV* const args = mouse_buildargs(aTHX_ meta, NULL, ax, items); + + RETVAL = mouse_instance_create(aTHX_ MOUSE_xc_stash(xc)); + mouse_class_initialize_object(aTHX_ meta, RETVAL, args, FALSE); +} +OUTPUT: + RETVAL + +void +_initialize_object(SV* meta, SV* object, HV* args, bool ignore_triggers = FALSE) +CODE: +{ + mouse_class_initialize_object(aTHX_ meta, object, args, ignore_triggers); +} MODULE = Mouse PACKAGE = Mouse::Meta::Role @@ -127,60 +606,181 @@ BOOT: INSTALL_SIMPLE_READER_WITH_KEY(Role, get_roles, roles); INSTALL_SIMPLE_PREDICATE_WITH_KEY(Role, is_anon_role, anon_serial_id); -MODULE = Mouse PACKAGE = Mouse::Meta::Attribute + INSTALL_CLASS_HOLDER(Role, method_metaclass, "Mouse::Meta::Role::Method"); -BOOT: - /* readers */ - INSTALL_SIMPLE_READER(Attribute, name); - INSTALL_SIMPLE_READER(Attribute, associated_class); - INSTALL_SIMPLE_READER(Attribute, accessor); - INSTALL_SIMPLE_READER(Attribute, reader); - INSTALL_SIMPLE_READER(Attribute, writer); - INSTALL_SIMPLE_READER(Attribute, predicate); - INSTALL_SIMPLE_READER(Attribute, clearer); - INSTALL_SIMPLE_READER(Attribute, handles); - - INSTALL_SIMPLE_READER_WITH_KEY(Attribute, _is_metadata, is); - INSTALL_SIMPLE_READER_WITH_KEY(Attribute, is_required, required); - INSTALL_SIMPLE_READER(Attribute, default); - INSTALL_SIMPLE_READER_WITH_KEY(Attribute, is_lazy, lazy); - INSTALL_SIMPLE_READER_WITH_KEY(Attribute, is_lazy_build, lazy_build); - INSTALL_SIMPLE_READER_WITH_KEY(Attribute, is_weak_ref, weak_ref); - INSTALL_SIMPLE_READER(Attribute, init_arg); - INSTALL_SIMPLE_READER(Attribute, type_constraint); - INSTALL_SIMPLE_READER(Attribute, trigger); - INSTALL_SIMPLE_READER(Attribute, builder); - INSTALL_SIMPLE_READER_WITH_KEY(Attribute, should_auto_deref, auto_deref); - INSTALL_SIMPLE_READER_WITH_KEY(Attribute, should_coerce, coerce); - INSTALL_SIMPLE_READER(Attribute, documentation); - - /* predicates */ - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_accessor, accessor); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_reader, reader); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_writer, writer); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_predicate, predicate); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_clearer, clearer); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_handles, handles); - - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_default, default); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_type_constraint, type_constraint); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_trigger, trigger); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_builder, builder); - INSTALL_SIMPLE_PREDICATE_WITH_KEY(Attribute, has_documentation, documentation); - - newCONSTSUB(gv_stashpvs("Mouse::Meta::Attribute", TRUE), "accessor_metaclass", - newSVpvs("Mouse::Meta::Method::Accessor::XS")); - -MODULE = Mouse PACKAGE = Mouse::Meta::TypeConstraint +void +add_before_modifier(SV* self, SV* name, SV* modifier) +CODE: +{ + av_push(mouse_get_modifier_storage(aTHX_ self, ix, name), newSVsv(modifier)); +} +ALIAS: + add_before_method_modifier = MOUSE_M_BEFORE + add_around_method_modifier = MOUSE_M_AROUND + add_after_method_modifier = MOUSE_M_AFTER -BOOT: - INSTALL_SIMPLE_READER(TypeConstraint, name); - INSTALL_SIMPLE_READER(TypeConstraint, parent); - INSTALL_SIMPLE_READER(TypeConstraint, message); +void +get_before_modifiers(SV* self, SV* name) +ALIAS: + get_before_method_modifiers = MOUSE_M_BEFORE + get_around_method_modifiers = MOUSE_M_AROUND + get_after_method_modifiers = MOUSE_M_AFTER +PPCODE: +{ + AV* const storage = mouse_get_modifier_storage(aTHX_ self, ix, name); + I32 const len = av_len(storage) + 1; + if(GIMME_V == G_ARRAY) { + I32 i; + EXTEND(SP, len); + for(i = 0; i < len; i++){ + PUSHs(*av_fetch(storage, i, TRUE)); + } + } + else{ + mPUSHi(len); + } +} + +MODULE = Mouse PACKAGE = Mouse::Object + +SV* +new(SV* klass, ...) +CODE: +{ + SV* const meta = mouse_initialize_metaclass(aTHX_ klass); + AV* const xc = mouse_get_xc(aTHX_ meta); + UV const flags = MOUSE_xc_flags(xc); + SV* args; + + /* BUILDARGS */ + if(flags & MOUSEf_XC_HAS_BUILDARGS){ + I32 i; + SPAGAIN; + + PUSHMARK(SP); + EXTEND(SP, items); + for(i = 0; i < items; i++){ + PUSHs(ST(i)); + } + //SP += items; + PUTBACK; + call_method("BUILDARGS", G_SCALAR); + SPAGAIN; + args = POPs; + PUTBACK; + + if(!IsHashRef(args)){ + croak("BUILDARGS did not return a HASH reference"); + } + } + else{ + args = newRV_inc((SV*)mouse_buildargs(aTHX_ meta, klass, ax, items)); + sv_2mortal(args); + } + + /* new_object */ + RETVAL = mouse_instance_create(aTHX_ MOUSE_xc_stash(xc)); + mouse_class_initialize_object(aTHX_ meta, RETVAL, (HV*)SvRV(args), FALSE); + + mouse_buildall(aTHX_ xc, RETVAL, args); +} +OUTPUT: + RETVAL - INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint); - INSTALL_SIMPLE_READER(TypeConstraint, _compiled_type_coercion); /* Mouse specific */ +void +DESTROY(SV* object) +ALIAS: + DESTROY = 0 + DEMOLISHALL = 1 +CODE: +{ + SV* const meta = get_metaclass(object); + AV* demolishall; + I32 len, i; - INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion); + if(!IsObject(object)){ + croak("You must not call %s as a class method", + ix == 0 ? "DESTROY" : "DEMOLISHALL"); + } + if(SvOK(meta)){ + AV* const xc = mouse_get_xc(aTHX_ meta); + demolishall = MOUSE_xc_demolishall(xc); + } + else { /* The metaclass is already destroyed */ + AV* const linearized_isa = mro_get_linear_isa(SvSTASH(SvRV(object))); + + len = AvFILLp(linearized_isa) + 1; + + demolishall = newAV_mortal(); + for(i = 0; i < len; i++){ + SV* const klass = MOUSE_av_at(linearized_isa, i); + HV* const st = gv_stashsv(klass, TRUE); + GV* const gv = stash_fetchs(st, "DEMOLISH", FALSE); + if(gv && GvCVu(gv)){ + av_push(demolishall, newRV_inc((SV*)GvCV(gv))); + } + } + } + + len = AvFILLp(demolishall) + 1; + if(len > 0){ + GV* const statusvalue = gv_fetchpvs("?", 0, SVt_PV); + + if(statusvalue){ /* it can be NULL */ + SAVESPTR(GvSV(statusvalue)); /* local $? */ + GvSV(statusvalue) = sv_newmortal(); + } + SAVESPTR(ERRSV); /* local $@ */ + ERRSV = newSVpvs_flags("", SVs_TEMP); + + for(i = 0; i < len; i++){ + SPAGAIN; + + PUSHMARK(SP); + XPUSHs(object); + XPUSHs(boolSV(PL_dirty)); + PUTBACK; + + call_sv(AvARRAY(demolishall)[i], G_VOID | G_EVAL); + + /* discard a scalar which G_VOID returns */ + SPAGAIN; + (void)POPs; + PUTBACK; + + if(sv_true(ERRSV)){ + SV* const e = newSVsv(ERRSV); + + FREETMPS; + LEAVE; + + sv_setsv(ERRSV, e); + SvREFCNT_dec(e); + croak(NULL); /* rethrow */ + } + } + } +} + +HV* +BUILDARGS(SV* klass, ...) +CODE: +{ + RETVAL = mouse_buildargs(aTHX_ NULL, klass, ax, items); +} +OUTPUT: + RETVAL + + +void +BUILDALL(SV* self, SV* args) +CODE: +{ + SV* const meta = get_metaclass(self); + AV* const xc = mouse_get_xc(aTHX_ meta); + + must_ref(args, "a HASH reference to BUILDALL", SVt_PVHV); + mouse_buildall(aTHX_ xc, self, args); +}