stream: encapsulate buffer-list

PR-URL: https://github.com/nodejs/node/pull/28974
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/internal/streams/buffer_list.js b/lib/internal/streams/buffer_list.js
index 5bfa762e85..9dbf6f6769 100644
--- a/lib/internal/streams/buffer_list.js
+++ b/lib/internal/streams/buffer_list.js
@@ -90,6 +90,12 @@ module.exports = class BufferList {
     return this.head.data;
   }
 
+  *[Symbol.iterator]() {
+    for (let p = this.head; p; p = p.next) {
+      yield p.data;
+    }
+  }
+
   // Consumes a specified amount of characters from the buffered data.
   _getString(n) {
     var p = this.head;