X-Git-Url: http://nitlanguage.org

diff --git a/src/rapid_type_analysis.nit b/src/rapid_type_analysis.nit
index bcae37f..73cc176 100644
--- a/src/rapid_type_analysis.nit
+++ b/src/rapid_type_analysis.nit
@@ -93,7 +93,7 @@ class RapidTypeAnalysis
 		var mtype = callsite.recv
 		var anchor = callsite.anchor
 		if anchor != null then mtype = mtype.anchor_to(callsite.mmodule, anchor)
-		mtype = mtype.as_notnullable
+		mtype = mtype.undecorate
 		if mtype isa MClassType then mtype = mtype.mclass.intro.bound_mtype
 		var mproperty = callsite.mproperty
 		var res = live_targets_cache[mtype, mproperty]
@@ -465,7 +465,7 @@ class RapidTypeVisitor
 	do
 		mtype = mtype.anchor_to(self.analysis.mainmodule, self.receiver)
 		if mtype isa MNullType then return null
-		mtype = mtype.as_notnullable
+		mtype = mtype.undecorate
 		assert mtype isa MClassType
 		assert not mtype.need_anchor
 		return mtype
@@ -560,11 +560,13 @@ redef class ASuperstringExpr
 		var object_type = mmodule.object_type
 		var arraytype = mmodule.array_type(object_type)
 		v.add_type(arraytype)
-		v.add_type(mmodule.native_array_type(object_type))
+		var nattype = mmodule.native_array_type(object_type)
+		v.add_type(nattype)
 		var prop = v.get_method(arraytype, "join")
 		v.add_monomorphic_send(arraytype, prop)
 		var prop2 = v.get_method(arraytype, "with_native")
 		v.add_monomorphic_send(arraytype, prop2)
+		v.add_monomorphic_send(nattype, v.get_method(nattype, "native_to_s"))
 	end
 end