Use heapless::Vec::resize_default.

Author: Alex Helfet

Cargo.lock

@@ -21,3 +21,10 @@ ref_slice = "^1.1.0"
 
 [dev-dependencies]
 tempdir = "0.3.5"
+
+# Patch `heapless` with my fork until my [PR] is merged.
+# Adds methods Vec::resize() and Vec::resize_default()
+# [PR] https://github.com/japaric/heapless/pull/13
+[patch.crates-io.heapless]
+git = "https://github.com/fluffysquirrels/heapless"
+rev = "0917beb92a92d06f6267ee595a65cb0858f3ed59"

Cargo.toml

@@ -205,11 +205,8 @@ fn read_packet(input: &mut Read) -> Result<Packet> {
                     _ => return Err(Error::from(
                                     ErrorKind::UnknownHeader(header))),
                 };
-            // TODO: payload.resize_default(), would be nice.
-            for _ in 0..payload_size {
-                packet.payload.push(0)
-                      .expect("payload_size <= packet.payload.capacity");
-            }
+            packet.payload.resize_default(payload_size)
+                          .expect("payload_size <= packet.payload.capacity");
             input.read_exact(&mut *packet.payload)?;
             Ok(packet)
         },