Use Infallible for the unconstructable default custom message type

[rust-lightning] / lightning / src / util / ser.rs

diff --git a/lightning/src/util/ser.rs b/lightning/src/util/ser.rs
index c06293269ec0ffc28727a3d2624e92a9f95d1319..47bdf04f8750ac8d2562f032c7232d997f36c3b4 100644 (file)
--- a/lightning/src/util/ser.rs
+++ b/lightning/src/util/ser.rs
@@ -879,6 +879,11 @@ impl<A: Writeable, B: Writeable, C: Writeable> Writeable for (A, B, C) {
        }
 }
 
+impl Writeable for () {
+       fn write<W: Writer>(&self, _: &mut W) -> Result<(), io::Error> {
+               Ok(())
+       }
+}
 impl Readable for () {
        fn read<R: Read>(_r: &mut R) -> Result<Self, DecodeError> {
                Ok(())
@@ -892,7 +897,6 @@ impl Writeable for String {
                w.write_all(self.as_bytes())
        }
 }
-
 impl Readable for String {
        #[inline]
        fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {