X-Git-Url: http://nitlanguage.org diff --git a/src/modelize_property.nit b/src/modelize_property.nit index e039c67..eed8e9d 100644 --- a/src/modelize_property.nit +++ b/src/modelize_property.nit @@ -28,6 +28,7 @@ private class ModelizePropertyPhase redef fun process_nmodule(nmodule) do for nclassdef in nmodule.n_classdefs do + if nclassdef.all_defs == null then continue # skip non principal classdef toolcontext.modelbuilder.build_properties(nclassdef) end end @@ -48,17 +49,20 @@ redef class ModelBuilder var mclassdef = nclassdef.mclassdef.as(not null) if mclassdef.in_hierarchy == null then return # Skip error for superclassdef in mclassdef.in_hierarchy.direct_greaters do + if not mclassdef2nclassdef.has_key(superclassdef) then continue build_properties(mclassdef2nclassdef[superclassdef]) end - for npropdef in nclassdef.n_propdefs do - npropdef.build_property(self, nclassdef) - end - for npropdef in nclassdef.n_propdefs do - npropdef.build_signature(self, nclassdef) - end - for npropdef in nclassdef.n_propdefs do - npropdef.check_signature(self, nclassdef) + for nclassdef2 in nclassdef.all_defs do + for npropdef in nclassdef2.n_propdefs do + npropdef.build_property(self, mclassdef) + end + for npropdef in nclassdef2.n_propdefs do + npropdef.build_signature(self) + end + for npropdef in nclassdef2.n_propdefs do + npropdef.check_signature(self) + end end process_default_constructors(nclassdef) end @@ -83,14 +87,14 @@ redef class ModelBuilder if not nclassdef isa AStdClassdef then return - var mmodule = nclassdef.mclassdef.mmodule + var mmodule = mclassdef.mmodule # Do we inherit for a constructor? var combine = new Array[MMethod] var inhc: nullable MClass = null for st in mclassdef.supertypes do var c = st.mclass if not c.kind.need_init then continue - st = st.anchor_to(mmodule, nclassdef.mclassdef.bound_mtype) + st = st.anchor_to(mmodule, mclassdef.bound_mtype) var candidate = self.try_get_mproperty_by_name2(nclassdef, mmodule, st, "init").as(nullable MMethod) if candidate != null and candidate.intro.msignature.arity == 0 then combine.add(candidate) @@ -210,10 +214,6 @@ redef class MClass var inherit_init_from: nullable MClass = null end -redef class MClassDef - private var propdef_names = new HashSet[String] -end - redef class MPropDef # Does the MPropDef contains a call to super or a call of a super-constructor? # Subsequent phases of the frontend (esp. typing) set it if required @@ -228,7 +228,9 @@ redef class AClassdef # The free init (implicitely constructed by the class if required) var mfree_init: nullable MMethodDef = null +end +redef class MClassDef # What is the `APropdef` associated to a `MProperty`? # Used to check multiple definition of a property. var mprop2npropdef: Map[MProperty, APropdef] = new HashMap[MProperty, APropdef] @@ -263,10 +265,10 @@ redef class APropdef # The associated propdef once build by a `ModelBuilder` var mpropdef: nullable MPROPDEF writable - private fun build_property(modelbuilder: ModelBuilder, nclassdef: AClassdef) is abstract - private fun build_signature(modelbuilder: ModelBuilder, nclassdef: AClassdef) is abstract - private fun check_signature(modelbuilder: ModelBuilder, nclassdef: AClassdef) is abstract - private fun new_property_visibility(modelbuilder: ModelBuilder, nclassdef: AClassdef, nvisibility: nullable AVisibility): MVisibility + private fun build_property(modelbuilder: ModelBuilder, mclassdef: MClassDef) is abstract + private fun build_signature(modelbuilder: ModelBuilder) is abstract + private fun check_signature(modelbuilder: ModelBuilder) is abstract + private fun new_property_visibility(modelbuilder: ModelBuilder, mclassdef: MClassDef, nvisibility: nullable AVisibility): MVisibility do var mvisibility = public_visibility if nvisibility != null then @@ -276,7 +278,7 @@ redef class APropdef mvisibility = public_visibility end end - if nclassdef.mclassdef.mclass.visibility == private_visibility then + if mclassdef.mclass.visibility == private_visibility then if mvisibility == protected_visibility then assert nvisibility != null modelbuilder.error(nvisibility, "Error: The only legal visibility for properties in a private class is private.") @@ -293,10 +295,14 @@ redef class APropdef private fun set_doc(mpropdef: MPropDef) do var ndoc = self.n_doc - if ndoc != null then mpropdef.mdoc = ndoc.to_mdoc + if ndoc != null then + var mdoc = ndoc.to_mdoc + mpropdef.mdoc = mdoc + mdoc.original_mentity = mpropdef + end end - private fun check_redef_property_visibility(modelbuilder: ModelBuilder, nclassdef: AClassdef, nvisibility: nullable AVisibility, mprop: MProperty) + private fun check_redef_property_visibility(modelbuilder: ModelBuilder, nvisibility: nullable AVisibility, mprop: MProperty) do if nvisibility == null then return var mvisibility = nvisibility.mvisibility @@ -305,20 +311,29 @@ redef class APropdef end end - private fun check_redef_keyword(modelbuilder: ModelBuilder, nclassdef: AClassdef, kwredef: nullable Token, need_redef: Bool, mprop: MProperty): Bool + private fun check_redef_keyword(modelbuilder: ModelBuilder, mclassdef: MClassDef, kwredef: nullable Token, need_redef: Bool, mprop: MProperty): Bool do - if nclassdef.mprop2npropdef.has_key(mprop) then - modelbuilder.error(self, "Error: A property {mprop} is already defined in class {nclassdef.mclassdef.mclass}.") + if mclassdef.mprop2npropdef.has_key(mprop) then + modelbuilder.error(self, "Error: A property {mprop} is already defined in class {mclassdef.mclass} at line {mclassdef.mprop2npropdef[mprop].location.line_start}.") return false end + if mprop isa MMethod and mprop.is_toplevel != (parent isa ATopClassdef) then + if mprop.is_toplevel then + modelbuilder.error(self, "Error: {mprop} is a top level method.") + else + modelbuilder.error(self, "Error: {mprop} is not a top level method.") + end + return false + + end if kwredef == null then if need_redef then - modelbuilder.error(self, "Redef error: {nclassdef.mclassdef.mclass}::{mprop.name} is an inherited property. To redefine it, add the redef keyword.") + modelbuilder.error(self, "Redef error: {mclassdef.mclass}::{mprop.name} is an inherited property. To redefine it, add the redef keyword.") return false end else if not need_redef then - modelbuilder.error(self, "Error: No property {nclassdef.mclassdef.mclass}::{mprop.name} is inherited. Remove the redef keyword to define a new property.") + modelbuilder.error(self, "Error: No property {mclassdef.mclass}::{mprop.name} is inherited. Remove the redef keyword to define a new property.") return false end end @@ -378,7 +393,7 @@ redef class ASignature end # Build a visited signature - fun build_signature(modelbuilder: ModelBuilder, nclassdef: AClassdef): nullable MSignature + fun build_signature(modelbuilder: ModelBuilder): nullable MSignature do if param_names.length != param_types.length then # Some parameters are typed, other parameters are not typed. @@ -406,12 +421,11 @@ end redef class AMethPropdef redef type MPROPDEF: MMethodDef - redef fun build_property(modelbuilder, nclassdef) + redef fun build_property(modelbuilder, mclassdef) do var n_kwinit = n_kwinit var n_kwnew = n_kwnew var is_init = n_kwinit != null or n_kwnew != null - var mclassdef = nclassdef.mclassdef.as(not null) var name: String var amethodid = self.n_methid var name_node: ANode @@ -444,39 +458,20 @@ redef class AMethPropdef var mprop: nullable MMethod = null if not is_init or n_kwredef != null then mprop = modelbuilder.try_get_mproperty_by_name(name_node, mclassdef, name).as(nullable MMethod) if mprop == null then - var mvisibility = new_property_visibility(modelbuilder, nclassdef, self.n_visibility) + var mvisibility = new_property_visibility(modelbuilder, mclassdef, self.n_visibility) mprop = new MMethod(mclassdef, name, mvisibility) mprop.is_init = is_init mprop.is_new = n_kwnew != null - if not self.check_redef_keyword(modelbuilder, nclassdef, n_kwredef, false, mprop) then return + if parent isa ATopClassdef then mprop.is_toplevel = true + if not self.check_redef_keyword(modelbuilder, mclassdef, n_kwredef, false, mprop) then return else - if n_kwredef == null then - if self isa AMainMethPropdef then - # no warning - else - if not self.check_redef_keyword(modelbuilder, nclassdef, n_kwredef, true, mprop) then return - end - end - check_redef_property_visibility(modelbuilder, nclassdef, self.n_visibility, mprop) + if not self.check_redef_keyword(modelbuilder, mclassdef, n_kwredef, not self isa AMainMethPropdef, mprop) then return + check_redef_property_visibility(modelbuilder, self.n_visibility, mprop) end - nclassdef.mprop2npropdef[mprop] = self + mclassdef.mprop2npropdef[mprop] = self var mpropdef = new MMethodDef(mclassdef, mprop, self.location) - if mclassdef.propdef_names.has(mprop.name) then - var loc: nullable Location = null - for i in mclassdef.mpropdefs do - if i.mproperty.name == mprop.name then - loc = i.location - break - end - end - if loc == null then abort - modelbuilder.error(self, "Error: a property {mprop} is already defined in class {mclassdef.mclass} at {loc}") - end - - mclassdef.propdef_names.add(mpropdef.mproperty.name) - set_doc(mpropdef) self.mpropdef = mpropdef @@ -488,7 +483,7 @@ redef class AMethPropdef end end - redef fun build_signature(modelbuilder, nclassdef) + redef fun build_signature(modelbuilder) do var mpropdef = self.mpropdef if mpropdef == null then return # Error thus skiped @@ -525,8 +520,8 @@ redef class AMethPropdef end else if mpropdef.mproperty.is_init then # FIXME UGLY: inherit signature from a super-constructor - for msupertype in nclassdef.mclassdef.supertypes do - msupertype = msupertype.anchor_to(mmodule, nclassdef.mclassdef.bound_mtype) + for msupertype in mclassdef.supertypes do + msupertype = msupertype.anchor_to(mmodule, mclassdef.bound_mtype) var candidate = modelbuilder.try_get_mproperty_by_name2(self, mmodule, msupertype, mpropdef.mproperty.name) if candidate != null then if msignature == null then @@ -570,11 +565,12 @@ redef class AMethPropdef mpropdef.is_extern = self isa AExternPropdef end - redef fun check_signature(modelbuilder, nclassdef) + redef fun check_signature(modelbuilder) do var mpropdef = self.mpropdef if mpropdef == null then return # Error thus skiped - var mmodule = mpropdef.mclassdef.mmodule + var mclassdef = mpropdef.mclassdef + var mmodule = mclassdef.mmodule var nsig = self.n_signature var mysignature = self.mpropdef.msignature if mysignature == null then return # Error thus skiped @@ -597,8 +593,8 @@ redef class AMethPropdef for i in [0..mysignature.arity[ do var myt = mysignature.mparameters[i].mtype var prt = msignature.mparameters[i].mtype - if not myt.is_subtype(mmodule, nclassdef.mclassdef.bound_mtype, prt) or - not prt.is_subtype(mmodule, nclassdef.mclassdef.bound_mtype, myt) then + if not myt.is_subtype(mmodule, mclassdef.bound_mtype, prt) or + not prt.is_subtype(mmodule, mclassdef.bound_mtype, myt) then modelbuilder.error(nsig.n_params[i], "Redef Error: Wrong type for parameter `{mysignature.mparameters[i].name}'. found {myt}, expected {prt} as in {mpropdef.mproperty.intro}.") end end @@ -607,7 +603,7 @@ redef class AMethPropdef if ret_type == null then # Inherit the return type ret_type = precursor_ret_type - else if not ret_type.is_subtype(mmodule, nclassdef.mclassdef.bound_mtype, precursor_ret_type) then + else if not ret_type.is_subtype(mmodule, mclassdef.bound_mtype, precursor_ret_type) then modelbuilder.error(nsig.n_type.as(not null), "Redef Error: Wrong return type. found {ret_type}, expected {precursor_ret_type} as in {mpropdef.mproperty.intro}.") end end @@ -632,9 +628,8 @@ redef class AAttrPropdef var mreadpropdef: nullable MMethodDef writable # The associated setter (write accessor) if any var mwritepropdef: nullable MMethodDef writable - redef fun build_property(modelbuilder, nclassdef) + redef fun build_property(modelbuilder, mclassdef) do - var mclassdef = nclassdef.mclassdef.as(not null) var mclass = mclassdef.mclass var name: String @@ -657,15 +652,15 @@ redef class AAttrPropdef # Old attribute style var mprop = modelbuilder.try_get_mproperty_by_name(nid, mclassdef, name) if mprop == null then - var mvisibility = new_property_visibility(modelbuilder, nclassdef, self.n_visibility) + var mvisibility = new_property_visibility(modelbuilder, mclassdef, self.n_visibility) mprop = new MAttribute(mclassdef, name, mvisibility) - if not self.check_redef_keyword(modelbuilder, nclassdef, self.n_kwredef, false, mprop) then return + if not self.check_redef_keyword(modelbuilder, mclassdef, self.n_kwredef, false, mprop) then return else assert mprop isa MAttribute - check_redef_property_visibility(modelbuilder, nclassdef, self.n_visibility, mprop) - if not self.check_redef_keyword(modelbuilder, nclassdef, self.n_kwredef, true, mprop) then return + check_redef_property_visibility(modelbuilder, self.n_visibility, mprop) + if not self.check_redef_keyword(modelbuilder, mclassdef, self.n_kwredef, true, mprop) then return end - nclassdef.mprop2npropdef[mprop] = self + mclassdef.mprop2npropdef[mprop] = self var mpropdef = new MAttributeDef(mclassdef, mprop, self.location) self.mpropdef = mpropdef @@ -673,44 +668,9 @@ redef class AAttrPropdef set_doc(mpropdef) var nreadable = self.n_readable - if nreadable != null then - var readname = name.substring_from(1) - var mreadprop = modelbuilder.try_get_mproperty_by_name(nid, mclassdef, readname).as(nullable MMethod) - if mreadprop == null then - var mvisibility = new_property_visibility(modelbuilder, nclassdef, nreadable.n_visibility) - mreadprop = new MMethod(mclassdef, readname, mvisibility) - if not self.check_redef_keyword(modelbuilder, nclassdef, nreadable.n_kwredef, false, mreadprop) then return - else - if not self.check_redef_keyword(modelbuilder, nclassdef, nreadable.n_kwredef, true, mreadprop) then return - check_redef_property_visibility(modelbuilder, nclassdef, nreadable.n_visibility, mreadprop) - end - nclassdef.mprop2npropdef[mreadprop] = self - - var mreadpropdef = new MMethodDef(mclassdef, mreadprop, self.location) - self.mreadpropdef = mreadpropdef - modelbuilder.mpropdef2npropdef[mreadpropdef] = self - mreadpropdef.mdoc = mpropdef.mdoc - end - + if nreadable != null then modelbuilder.error(nreadable, "Error: old-style getter no more supported") var nwritable = self.n_writable - if nwritable != null then - var writename = name.substring_from(1) + "=" - var mwriteprop = modelbuilder.try_get_mproperty_by_name(nid, mclassdef, writename).as(nullable MMethod) - if mwriteprop == null then - var mvisibility = new_property_visibility(modelbuilder, nclassdef, nwritable.n_visibility) - mwriteprop = new MMethod(mclassdef, writename, mvisibility) - if not self.check_redef_keyword(modelbuilder, nclassdef, nwritable.n_kwredef, false, mwriteprop) then return - else - if not self.check_redef_keyword(modelbuilder, nclassdef, nwritable.n_kwredef, true, mwriteprop) then return - check_redef_property_visibility(modelbuilder, nclassdef, nwritable.n_visibility, mwriteprop) - end - nclassdef.mprop2npropdef[mwriteprop] = self - - var mwritepropdef = new MMethodDef(mclassdef, mwriteprop, self.location) - self.mwritepropdef = mwritepropdef - modelbuilder.mpropdef2npropdef[mwritepropdef] = self - mwritepropdef.mdoc = mpropdef.mdoc - end + if nwritable != null then modelbuilder.error(nwritable, "Error: old-style setter no more supported") else # New attribute style var nid2 = self.n_id2.as(not null) @@ -723,14 +683,14 @@ redef class AAttrPropdef var readname = name var mreadprop = modelbuilder.try_get_mproperty_by_name(nid2, mclassdef, readname).as(nullable MMethod) if mreadprop == null then - var mvisibility = new_property_visibility(modelbuilder, nclassdef, self.n_visibility) + var mvisibility = new_property_visibility(modelbuilder, mclassdef, self.n_visibility) mreadprop = new MMethod(mclassdef, readname, mvisibility) - if not self.check_redef_keyword(modelbuilder, nclassdef, n_kwredef, false, mreadprop) then return + if not self.check_redef_keyword(modelbuilder, mclassdef, n_kwredef, false, mreadprop) then return else - if not self.check_redef_keyword(modelbuilder, nclassdef, n_kwredef, true, mreadprop) then return - check_redef_property_visibility(modelbuilder, nclassdef, self.n_visibility, mreadprop) + if not self.check_redef_keyword(modelbuilder, mclassdef, n_kwredef, true, mreadprop) then return + check_redef_property_visibility(modelbuilder, self.n_visibility, mreadprop) end - nclassdef.mprop2npropdef[mreadprop] = self + mclassdef.mprop2npropdef[mreadprop] = self var mreadpropdef = new MMethodDef(mclassdef, mreadprop, self.location) self.mreadpropdef = mreadpropdef @@ -745,19 +705,19 @@ redef class AAttrPropdef if mwriteprop == null then var mvisibility if nwritable != null then - mvisibility = new_property_visibility(modelbuilder, nclassdef, nwritable.n_visibility) + mvisibility = new_property_visibility(modelbuilder, mclassdef, nwritable.n_visibility) else mvisibility = private_visibility end mwriteprop = new MMethod(mclassdef, writename, mvisibility) - if not self.check_redef_keyword(modelbuilder, nclassdef, nwkwredef, false, mwriteprop) then return + if not self.check_redef_keyword(modelbuilder, mclassdef, nwkwredef, false, mwriteprop) then return else - if not self.check_redef_keyword(modelbuilder, nclassdef, nwkwredef, true, mwriteprop) then return + if not self.check_redef_keyword(modelbuilder, mclassdef, nwkwredef, true, mwriteprop) then return if nwritable != null then - check_redef_property_visibility(modelbuilder, nclassdef, nwritable.n_visibility, mwriteprop) + check_redef_property_visibility(modelbuilder, nwritable.n_visibility, mwriteprop) end end - nclassdef.mprop2npropdef[mwriteprop] = self + mclassdef.mprop2npropdef[mwriteprop] = self var mwritepropdef = new MMethodDef(mclassdef, mwriteprop, self.location) self.mwritepropdef = mwritepropdef @@ -766,7 +726,7 @@ redef class AAttrPropdef end end - redef fun build_signature(modelbuilder, nclassdef) + redef fun build_signature(modelbuilder) do var mpropdef = self.mpropdef if mpropdef == null then return # Error thus skiped @@ -844,11 +804,12 @@ redef class AAttrPropdef end end - redef fun check_signature(modelbuilder, nclassdef) + redef fun check_signature(modelbuilder) do var mpropdef = self.mpropdef if mpropdef == null then return # Error thus skiped - var mmodule = mpropdef.mclassdef.mmodule + var mclassdef = mpropdef.mclassdef + var mmodule = mclassdef.mmodule var ntype = self.n_type var mtype = self.mpropdef.static_mtype if mtype == null then return # Error thus skiped @@ -868,23 +829,24 @@ redef class AAttrPropdef # Check getter and setter var meth = self.mreadpropdef if meth != null then - self.check_method_signature(modelbuilder, nclassdef, meth) + self.check_method_signature(modelbuilder, meth) var node: nullable ANode = ntype if node == null then node = self modelbuilder.check_visibility(node, mtype, meth) end meth = self.mwritepropdef if meth != null then - self.check_method_signature(modelbuilder, nclassdef, meth) + self.check_method_signature(modelbuilder, meth) var node: nullable ANode = ntype if node == null then node = self modelbuilder.check_visibility(node, mtype, meth) end end - private fun check_method_signature(modelbuilder: ModelBuilder, nclassdef: AClassdef, mpropdef: MMethodDef) + private fun check_method_signature(modelbuilder: ModelBuilder, mpropdef: MMethodDef) do - var mmodule = mpropdef.mclassdef.mmodule + var mclassdef = mpropdef.mclassdef + var mmodule = mclassdef.mmodule var nsig = self.n_type var mysignature = mpropdef.msignature if mysignature == null then return # Error thus skiped @@ -915,8 +877,8 @@ redef class AAttrPropdef for i in [0..mysignature.arity[ do var myt = mysignature.mparameters[i].mtype var prt = msignature.mparameters[i].mtype - if not myt.is_subtype(mmodule, nclassdef.mclassdef.bound_mtype, prt) and - not prt.is_subtype(mmodule, nclassdef.mclassdef.bound_mtype, myt) then + if not myt.is_subtype(mmodule, mclassdef.bound_mtype, prt) and + not prt.is_subtype(mmodule, mclassdef.bound_mtype, myt) then var node: ANode if nsig != null then node = nsig else node = self modelbuilder.error(node, "Redef Error: Wrong type for parameter `{mysignature.mparameters[i].name}'. found {myt}, expected {prt}.") @@ -927,7 +889,7 @@ redef class AAttrPropdef if ret_type == null then # Inherit the return type ret_type = precursor_ret_type - else if not ret_type.is_subtype(mmodule, nclassdef.mclassdef.bound_mtype, precursor_ret_type) then + else if not ret_type.is_subtype(mmodule, mclassdef.bound_mtype, precursor_ret_type) then var node: ANode if nsig != null then node = nsig else node = self modelbuilder.error(node, "Redef Error: Wrong return type. found {ret_type}, expected {precursor_ret_type}.") @@ -940,25 +902,24 @@ end redef class ATypePropdef redef type MPROPDEF: MVirtualTypeDef - redef fun build_property(modelbuilder, nclassdef) + redef fun build_property(modelbuilder, mclassdef) do - var mclassdef = nclassdef.mclassdef.as(not null) var name = self.n_id.text var mprop = modelbuilder.try_get_mproperty_by_name(self.n_id, mclassdef, name) if mprop == null then - var mvisibility = new_property_visibility(modelbuilder, nclassdef, self.n_visibility) + var mvisibility = new_property_visibility(modelbuilder, mclassdef, self.n_visibility) mprop = new MVirtualTypeProp(mclassdef, name, mvisibility) for c in name.chars do if c >= 'a' and c<= 'z' then modelbuilder.warning(n_id, "Warning: lowercase in the virtual type {name}") break end - if not self.check_redef_keyword(modelbuilder, nclassdef, self.n_kwredef, false, mprop) then return + if not self.check_redef_keyword(modelbuilder, mclassdef, self.n_kwredef, false, mprop) then return else - if not self.check_redef_keyword(modelbuilder, nclassdef, self.n_kwredef, true, mprop) then return + if not self.check_redef_keyword(modelbuilder, mclassdef, self.n_kwredef, true, mprop) then return assert mprop isa MVirtualTypeProp - check_redef_property_visibility(modelbuilder, nclassdef, self.n_visibility, mprop) + check_redef_property_visibility(modelbuilder, self.n_visibility, mprop) end - nclassdef.mprop2npropdef[mprop] = self + mclassdef.mprop2npropdef[mprop] = self var mpropdef = new MVirtualTypeDef(mclassdef, mprop, self.location) self.mpropdef = mpropdef @@ -966,7 +927,7 @@ redef class ATypePropdef set_doc(mpropdef) end - redef fun build_signature(modelbuilder, nclassdef) + redef fun build_signature(modelbuilder) do var mpropdef = self.mpropdef if mpropdef == null then return # Error thus skiped @@ -982,7 +943,7 @@ redef class ATypePropdef # print "{mpropdef}: {mtype}" end - redef fun check_signature(modelbuilder, nclassdef) + redef fun check_signature(modelbuilder) do var mpropdef = self.mpropdef if mpropdef == null then return # Error thus skiped @@ -995,8 +956,9 @@ redef class ATypePropdef # Fast case: the bound is not a formal type if not bound isa MVirtualType then return - var mmodule = nclassdef.mclassdef.mmodule - var anchor = nclassdef.mclassdef.bound_mtype + var mclassdef = mpropdef.mclassdef + var mmodule = mclassdef.mmodule + var anchor = mclassdef.bound_mtype # Slow case: progress on each resolution until: (i) we loop, or (ii) we found a non formal type var seen = [self.mpropdef.mproperty.mvirtualtype]