stream: avoid unnecessary concat of a single buffer.

Avoids doing a buffer.concat on the internal buffer when that array has only a single thing in it. Reviewed-By: Chris Dickinson <chris@neversaw.us> Reviewed-By: James M Snell <jasnell@gmail.com> PR-URL: #3300
nodejs · Oct 29, 2015 · 4bac5d9 · 4bac5d9
1 parent e04cb1e
commit 4bac5d9
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
@@ -836,6 +836,8 @@ function fromList(n, state) {
     // read it all, truncate the array.
     if (stringMode)
       ret = list.join('');
+    else if (list.length === 1)
+      ret = list[0];
     else
       ret = Buffer.concat(list, length);
     list.length = 0;