model: new class MErrorType as using MBottomType was abuse
[nit.git] / src / modelize / modelize_property.nit
index 6588268..5ba3196 100644 (file)
@@ -111,7 +111,7 @@ redef class ModelBuilder
                                if not check_virtual_types_circularity(npropdef, mpropdef.mproperty, mclassdef.bound_mtype, mclassdef.mmodule) then
                                        # Invalidate the bound
                                        mpropdef.is_broken = true
-                                       mpropdef.bound = new MBottomType(mclassdef.mmodule.model)
+                                       mpropdef.bound = new MErrorType(mclassdef.mmodule.model)
                                end
                        end
                        for npropdef in nclassdef2.n_propdefs do
@@ -145,7 +145,7 @@ redef class ModelBuilder
                # Look for the init in Object, or create it
                if mclassdef.mclass.name == "Object" and the_root_init_mmethod == null then
                        # Create the implicit root-init method
-                       var mprop = new MMethod(mclassdef, "init", mclassdef.mclass.visibility)
+                       var mprop = new MMethod(mclassdef, "init", nclassdef.location, mclassdef.mclass.visibility)
                        mprop.is_root_init = true
                        var mpropdef = new MMethodDef(mclassdef, mprop, nclassdef.location)
                        var mparameters = new Array[MParameter]
@@ -384,6 +384,8 @@ redef class ModelBuilder
                        # nothing to do.
                else if mtype isa MBottomType then
                        # nothing to do.
+               else if mtype isa MErrorType then
+                       # nothing to do.
                else
                        node.debug "Unexpected type {mtype}"
                        abort
@@ -589,7 +591,7 @@ redef class APropdef
                        var mdoc = ndoc.to_mdoc
                        mpropdef.mdoc = mdoc
                        mdoc.original_mentity = mpropdef
-               else if mpropdef.is_intro and mpropdef.mproperty.visibility >= protected_visibility then
+               else if mpropdef.is_intro and mpropdef.mproperty.visibility >= protected_visibility and mpropdef.name != "new" then
                        modelbuilder.advice(self, "missing-doc", "Documentation warning: Undocumented property `{mpropdef.mproperty}`")
                end
 
@@ -822,7 +824,7 @@ redef class AMethPropdef
                end
                if mprop == null then
                        var mvisibility = new_property_visibility(modelbuilder, mclassdef, self.n_visibility)
-                       mprop = new MMethod(mclassdef, name, mvisibility)
+                       mprop = new MMethod(mclassdef, name, self.location, mvisibility)
                        if look_like_a_root_init and modelbuilder.the_root_init_mmethod == null then
                                modelbuilder.the_root_init_mmethod = mprop
                                mprop.is_root_init = true
@@ -836,9 +838,7 @@ redef class AMethPropdef
                                return
                        end
                else
-                       if mprop.is_broken then
-                               return
-                       end
+                       if mprop.is_broken then return
                        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
@@ -1186,7 +1186,7 @@ redef class AAttrPropdef
                                modelbuilder.error(self, "Error: attempt to define attribute `{name}` in the {mclass.kind} `{mclass}`.")
                        end
 
-                       var mprop = new MAttribute(mclassdef, "_" + name, private_visibility)
+                       var mprop = new MAttribute(mclassdef, "_" + name, self.location, private_visibility)
                        var mpropdef = new MAttributeDef(mclassdef, mprop, self.location)
                        self.mpropdef = mpropdef
                        modelbuilder.mpropdef2npropdef[mpropdef] = self
@@ -1196,9 +1196,13 @@ redef class AAttrPropdef
                var mreadprop = modelbuilder.try_get_mproperty_by_name(nid2, mclassdef, readname).as(nullable MMethod)
                if mreadprop == null then
                        var mvisibility = new_property_visibility(modelbuilder, mclassdef, self.n_visibility)
-                       mreadprop = new MMethod(mclassdef, readname, mvisibility)
-                       if not self.check_redef_keyword(modelbuilder, mclassdef, n_kwredef, false, mreadprop) then return
+                       mreadprop = new MMethod(mclassdef, readname, self.location, mvisibility)
+                       if not self.check_redef_keyword(modelbuilder, mclassdef, n_kwredef, false, mreadprop) then
+                               mreadprop.is_broken = true
+                               return
+                       end
                else
+                       if mreadprop.is_broken then return
                        if not self.check_redef_keyword(modelbuilder, mclassdef, n_kwredef, true, mreadprop) then return
                        check_redef_property_visibility(modelbuilder, self.n_visibility, mreadprop)
                end
@@ -1248,7 +1252,7 @@ redef class AAttrPropdef
                                return
                        end
                        is_lazy = true
-                       var mlazyprop = new MAttribute(mclassdef, "lazy _" + name, none_visibility)
+                       var mlazyprop = new MAttribute(mclassdef, "lazy _" + name, self.location, none_visibility)
                        mlazyprop.is_fictive = true
                        var mlazypropdef = new MAttributeDef(mclassdef, mlazyprop, self.location)
                        mlazypropdef.is_fictive = true
@@ -1295,10 +1299,14 @@ redef class AAttrPropdef
                                # By default, use protected visibility at most
                                if mvisibility > protected_visibility then mvisibility = protected_visibility
                        end
-                       mwriteprop = new MMethod(mclassdef, writename, mvisibility)
-                       if not self.check_redef_keyword(modelbuilder, mclassdef, nwkwredef, false, mwriteprop) then return
+                       mwriteprop = new MMethod(mclassdef, writename, self.location, mvisibility)
+                       if not self.check_redef_keyword(modelbuilder, mclassdef, nwkwredef, false, mwriteprop) then
+                               mwriteprop.is_broken = true
+                               return
+                       end
                        mwriteprop.deprecation = mreadprop.deprecation
                else
+                       if mwriteprop.is_broken then return
                        if not self.check_redef_keyword(modelbuilder, mclassdef, nwkwredef or else n_kwredef, true, mwriteprop) then return
                        if atwritable != null then
                                check_redef_property_visibility(modelbuilder, atwritable.n_visibility, mwriteprop)
@@ -1390,7 +1398,14 @@ redef class AAttrPropdef
                                        var cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Float")
                                        if cla != null then mtype = cla.mclass_type
                                else if nexpr isa ACharExpr then
-                                       var cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Char")
+                                       var cla: nullable MClass
+                                       if nexpr.is_ascii then
+                                               cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Byte")
+                                       else if nexpr.is_code_point then
+                                               cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Int")
+                                       else
+                                               cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Char")
+                                       end
                                        if cla != null then mtype = cla.mclass_type
                                else if nexpr isa ABoolExpr then
                                        var cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Bool")
@@ -1399,7 +1414,16 @@ redef class AAttrPropdef
                                        var cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "String")
                                        if cla != null then mtype = cla.mclass_type
                                else if nexpr isa AStringFormExpr then
-                                       var cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "String")
+                                       var cla: nullable MClass
+                                       if nexpr.is_bytestring then
+                                               cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Bytes")
+                                       else if nexpr.is_re then
+                                               cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "Regex")
+                                       else if nexpr.is_string then
+                                               cla = modelbuilder.try_get_mclass_by_name(nexpr, mmodule, "String")
+                                       else
+                                               abort
+                                       end
                                        if cla != null then mtype = cla.mclass_type
                                else
                                        modelbuilder.error(self, "Error: untyped attribute `{mreadpropdef}`. Implicit typing allowed only for literals and new.")
@@ -1447,7 +1471,7 @@ redef class AAttrPropdef
 
                var mlazypropdef = self.mlazypropdef
                if mlazypropdef != null then
-                       mlazypropdef.static_mtype = modelbuilder.model.get_mclasses_by_name("Bool").first.mclass_type
+                       mlazypropdef.static_mtype = mmodule.bool_type
                end
                check_repeated_types(modelbuilder)
        end
@@ -1586,12 +1610,13 @@ redef class ATypePropdef
                var mprop = modelbuilder.try_get_mproperty_by_name(self.n_qid, mclassdef, name)
                if mprop == null then
                        var mvisibility = new_property_visibility(modelbuilder, mclassdef, self.n_visibility)
-                       mprop = new MVirtualTypeProp(mclassdef, name, mvisibility)
+                       mprop = new MVirtualTypeProp(mclassdef, name, self.location, mvisibility)
                        for c in name.chars do if c >= 'a' and c<= 'z' then
                                modelbuilder.warning(n_qid, "bad-type-name", "Warning: lowercase in the virtual type `{name}`.")
                                break
                        end
                else
+                       if mprop.is_broken then return
                        assert mprop isa MVirtualTypeProp
                        check_redef_property_visibility(modelbuilder, self.n_visibility, mprop)
                end