+ check_repeated_types(modelbuilder)
+ end
+
+ # For parameters, type is always useless in a redef.
+ # For return type, type is useless if not covariant with introduction.
+ redef fun check_repeated_types(modelbuilder) do
+ if mpropdef.is_intro or n_signature == null then return
+ # check params
+ for param in n_signature.n_params do
+ if param.n_type != null then
+ modelbuilder.advice(param.n_type, "useless-signature", "Warning: useless type repetition on parameter `{param.n_id.text}` for redefined method `{mpropdef.name}`")
+ end
+ end
+ # get intro
+ var intro = mpropdef.mproperty.intro
+ var n_intro = modelbuilder.mpropdef2npropdef.get_or_null(intro)
+ if n_intro == null or not n_intro isa AMethPropdef then return
+ # check return type
+ var ret_type = n_signature.ret_type
+ if ret_type != null and ret_type == n_intro.n_signature.ret_type then
+ modelbuilder.advice(n_signature.n_type, "useless-signature", "Warning: useless return type repetition for redefined method `{mpropdef.name}`")
+ end