1 files changed, 22 insertions, 0 deletions
diff --git a/third_party/rust/bytes/src/buf/vec_deque.rs b/third_party/rust/bytes/src/buf/vec_deque.rs
new file mode 100644
index 0000000000..263167e83c
--- /dev/null
+++ b/third_party/rust/bytes/src/buf/vec_deque.rs
@@ -0,0 +1,22 @@
+use alloc::collections::VecDeque;
+
+use super::Buf;
+
+impl Buf for VecDeque<u8> {
+    fn remaining(&self) -> usize {
+        self.len()
+    }
+
+    fn chunk(&self) -> &[u8] {
+        let (s1, s2) = self.as_slices();
+        if s1.is_empty() {
+            s2
+        } else {
+            s1
+        }
+    }
+
+    fn advance(&mut self, cnt: usize) {
+        self.drain(..cnt);
+    }
+}