nullable: convert lib, tools and tests

[nit.git] / lib / standard / stream.nit

diff --git a/lib/standard/stream.nit b/lib/standard/stream.nit
index 3204e84..45c9f32 100644 (file)
--- a/lib/standard/stream.nit
+++ b/lib/standard/stream.nit
@@ -184,7 +184,7 @@ special IStream
        redef meth eof do return _buffer_pos >= _buffer.length and end_reached
 
        # The buffer
-       attr _buffer: Buffer = null
+       attr _buffer: nullable Buffer = null
 
        # The current position in the buffer
        attr _buffer_pos: Int = 0