modelize: Gracefully handle virtual types without definition in `check_virtual_types_...

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/modelize/modelize_property.nit b/src/modelize/modelize_property.nit
index e4ae1c5..23feb87 100644 (file)
--- a/src/modelize/modelize_property.nit
+++ b/src/modelize/modelize_property.nit
@@ -447,8 +447,7 @@ redef class ModelBuilder
                                var vt = t.mproperty
                                # Because `vt` is possibly unchecked, we have to do the bound-lookup manually
                                var defs = vt.lookup_definitions(mmodule, recv)
-                               # TODO something to manage correctly bound conflicts
-                               assert not defs.is_empty
+                               if defs.is_empty then return false
                                nexts = new Array[MType]
                                for d in defs do
                                        var next = defs.first.bound