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

diff --git a/lib/filter_stream.nit b/lib/filter_stream.nit
index 4146345..a32c288 100644
--- a/lib/filter_stream.nit
+++ b/lib/filter_stream.nit
@@ -12,9 +12,9 @@
 # another product.
 
 class FilterIStream
-special IStream
+	super IStream
 	# Filter readed elements
-	readable var _stream: nullable IStream
+	readable var _stream: nullable IStream = null
 
 	redef fun eof: Bool
 	do
@@ -29,9 +29,9 @@ special IStream
 end
 
 class FilterOStream
-special OStream
+	super OStream
 	# Filter outputed elements
-	readable var _stream: nullable OStream
+	readable var _stream: nullable OStream = null
 
 	# Can the stream be used to write
 	redef fun is_writable: Bool
@@ -47,7 +47,7 @@ special OStream
 end
 
 class StreamCat
-special FilterIStream
+	super FilterIStream
 	var _streams: Iterator[IStream]
 
 	redef fun eof: Bool
@@ -98,7 +98,7 @@ special FilterIStream
 end
 
 class StreamDemux
-special FilterOStream
+	super FilterOStream
 	var _streams: Array[OStream]
 
 	redef fun is_writable: Bool
@@ -116,7 +116,7 @@ special FilterOStream
 		end
 	end
 
-	redef fun write(s: String)
+	redef fun write(s: Text)
 	do
 		for i in _streams
 		do