stdlib/strings: Repaired hash for Buffers.

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

diff --git a/lib/standard/string.nit b/lib/standard/string.nit
index b34e043..dd5ed1b 100644 (file)
--- a/lib/standard/string.nit
+++ b/lib/standard/string.nit
@@ -1012,6 +1012,12 @@ abstract class Buffer
        # Adds the content of text `s` at the end of self
        fun append(s: Text) is abstract
 
+       redef fun hash
+       do
+               if is_dirty then hash_cache = null
+               return super
+       end
+
 end
 
 # Mutable strings of characters.