Optimized SequenceRead instantiation with fixed length in Text.xor

Signed-off-by: Philippe Pepos Petitclerc <ppeposp@gmail.com>

diff --git a/lib/crypto.nit b/lib/crypto.nit
index a21a853..357eb99 100644 (file)
--- a/lib/crypto.nit
+++ b/lib/crypto.nit
@@ -162,7 +162,8 @@ redef class Text
        #
        #     assert "goodmorning".xor(" ".to_bytes) == "GOODMORNING"
        fun xor(key: SequenceRead[Byte]): Text do
-               var xored = new Bytes.empty
+               var xored = new Bytes.with_capacity(bytelen.max(key.length))
+
                var shortest: SequenceRead[Byte]
                var longest: SequenceRead[Byte]