metamodel: MMLocalClass::[] aborts if no global class

[nit.git] / src / metamodel / inheritance.nit

diff --git a/src/metamodel/inheritance.nit b/src/metamodel/inheritance.nit
index 50924cd..9988426 100644 (file)
--- a/src/metamodel/inheritance.nit
+++ b/src/metamodel/inheritance.nit
@@ -59,7 +59,7 @@ redef class MMLocalClass
 
        # Is the class computing super.
        # Used to detect specialization loops.
-       attr _computing_super: Bool 
+       attr _computing_super: Bool = false 
 
        # Compute super classes of a class
        meth compute_super_classes
@@ -193,11 +193,13 @@ redef class MMLocalClass
 
        redef meth [](glob)
        do
-               var prop = super(glob)
-               if prop == null and _global_properties.has(glob) then
-                       prop = inherit_local_property(glob)
+               if _local_property_by_global.has_key(glob) then
+                       return _local_property_by_global[glob]
+               else if has_global_property(glob) then
+                       return inherit_local_property(glob)
+               else
+                       abort
                end
-               return prop
        end
 
        # Add default super class in direct parent and in super classes if this is not the Object class
@@ -338,8 +340,7 @@ redef class MMLocalClass
                        # First compute the set of bottom properties
                        var impls = new ArraySet[MMLocalProperty]
                        for sc in supers do
-                               var p = sc[glob]
-                               if p != null then impls.add(p)
+                               if sc.has_global_property(glob) then impls.add(sc[glob])
                        end
                        # Second, extract most specific
                        var impls2 = ghier.select_smallests(impls)
@@ -377,9 +378,8 @@ redef class MMLocalProperty
                set_global(g)
                var impls = new Array[MMLocalProperty]
                for sc in local_class.che.direct_greaters do
-                       var p = sc[g]
-                       if p == null then continue
-                       impls.add(p)
+                       if not sc.has_global_property(g) then continue
+                       impls.add(sc[g])
                end
                g.add_local_property(self, impls)
        end