4 static MGVTBL mop_accessor_vtbl = { /* the MAGIC identity */
19 mop_accessor_get_mg(pTHX_ CV* const xsub){
20 return mop_mg_find(aTHX_ (SV*)xsub, &mop_accessor_vtbl, MOPf_DIE_ON_FAIL);
24 mop_install_accessor(pTHX_ const char* const fq_name, const char* const key, I32 const keylen, XSPROTO(accessor_impl), const mop_instance_vtbl* vtbl){
25 CV* const xsub = newXS((char*)fq_name, accessor_impl, __FILE__);
26 SV* const keysv = newSVpvn_share(key, keylen, 0U);
27 AV* const meta = newAV();
31 vtbl = mop_get_default_instance_vtbl(aTHX);
35 /* generated_xsub need sv_2mortal */
36 sv_2mortal((SV*)xsub);
39 mg = sv_magicext((SV*)xsub, (SV*)meta, PERL_MAGIC_ext, &mop_accessor_vtbl, (char*)vtbl, 0);
40 SvREFCNT_dec(meta); /* sv_magicext() increases refcnt in mg_obj */
42 av_store(meta, MOP_MI_SLOT, keysv);
45 * although we use MAGIC for gc, we also store mg to any slot for efficiency (gfx)
47 CvXSUBANY(xsub).any_ptr = (void*)mg;
54 mop_instantiate_xs_accessor(pTHX_ SV* const accessor, XSPROTO(accessor_impl), mop_instance_vtbl* const vtbl){
55 /* $key = $accessor->associated_attribute->name */
56 SV* const attr = mop_call0(aTHX_ accessor, mop_associated_attribute);
57 SV* const key = mop_call0(aTHX_ attr, mop_name);
59 const char* const kpv = SvPV_const(key, klen);
61 return mop_install_accessor(aTHX_ NULL /* anonymous */, kpv, klen, accessor_impl, vtbl);
65 mop_accessor_get_self(pTHX_ I32 const ax, I32 const items, CV* const cv) {
69 croak("too few arguments for %s", GvNAME(CvGV(cv)));
72 /* NOTE: If self has GETMAGIC, $self->accessor will invoke GETMAGIC
73 * before calling methods, so SvGETMAGIC(self) is not necessarily needed here.
77 if(!(SvROK(self) && SvOBJECT(SvRV(self)))){
78 croak("cant call %s as a class method", GvNAME(CvGV(cv)));
85 mop_debug_mi_access(pTHX_ AV* const mi, I32 const attr_ix){
87 assert(SvTYPE(mi) == SVt_PVAV);
88 assert(AvMAX(mi) >= attr_ix);
89 return &AvARRAY(mi)[attr_ix];
93 XS(mop_xs_simple_accessor)
96 dMOP_METHOD_COMMON; /* self, mg */
99 if(items == 1){ /* reader */
100 value = MOP_mg_get_slot(mg, self);
102 else if (items == 2){ /* writer */
103 value = MOP_mg_set_slot(mg, self, ST(1));
106 croak("expected exactly one or two argument");
109 ST(0) = value ? value : &PL_sv_undef;
114 XS(mop_xs_simple_reader)
117 dMOP_METHOD_COMMON; /* self, mg */
121 croak("expected exactly one argument");
124 value = MOP_mg_get_slot(mg, self);
125 ST(0) = value ? value : &PL_sv_undef;
129 XS(mop_xs_simple_writer)
132 dMOP_METHOD_COMMON; /* self, mg */
135 croak("expected exactly two argument");
138 ST(0) = MOP_mg_set_slot(mg, self, ST(1));
142 XS(mop_xs_simple_clearer)
145 dMOP_METHOD_COMMON; /* self, mg */
149 croak("expected exactly one argument");
152 value = MOP_mg_delete_slot(mg, self);
153 ST(0) = value ? value : &PL_sv_undef;
158 XS(mop_xs_simple_predicate)
161 dMOP_METHOD_COMMON; /* self, mg */
164 croak("expected exactly one argument");
167 ST(0) = boolSV( MOP_mg_has_slot(mg, self) );
172 XS(mop_xs_simple_predicate_for_metaclass)
175 dMOP_METHOD_COMMON; /* self, mg */
179 croak("expected exactly one argument");
182 value = MOP_mg_get_slot(mg, self);
183 ST(0) = boolSV( value && SvOK(value ));
187 MODULE = Class::MOP::Method::Accessor PACKAGE = Class::MOP::Method::Accessor
192 INSTALL_SIMPLE_READER_WITH_KEY(Method::Accessor, associated_attribute, attribute);
193 INSTALL_SIMPLE_READER(Method::Accessor, accessor_type);
197 _generate_accessor_method_xs(SV* self, void* instance_vtbl)
199 RETVAL = mop_instantiate_xs_accessor(aTHX_ self, mop_xs_simple_accessor, instance_vtbl);
204 _generate_reader_method_xs(SV* self, void* instance_vtbl)
206 RETVAL = mop_instantiate_xs_accessor(aTHX_ self, mop_xs_simple_reader, instance_vtbl);
211 _generate_writer_method_xs(SV* self, void* instance_vtbl)
213 RETVAL = mop_instantiate_xs_accessor(aTHX_ self, mop_xs_simple_writer, instance_vtbl);
218 _generate_predicate_method_xs(SV* self, void* instance_vtbl)
220 RETVAL = mop_instantiate_xs_accessor(aTHX_ self, mop_xs_simple_predicate, instance_vtbl);
225 _generate_clearer_method_xs(SV* self, void* instance_vtbl)
227 RETVAL = mop_instantiate_xs_accessor(aTHX_ self, mop_xs_simple_clearer, instance_vtbl);