X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fwire.rs;h=d3cc257f5a6b18cb1776475b4fec69949521e1d6;hb=7c4dfad4fe97c9d8bc37c38e15b9dab95f27e37a;hp=4caf3543b0f9f02e5ec3b650c8c9a82fa9cc861c;hpb=eb46f477f4b2459731e78c23423415cde278be09;p=rust-lightning

diff --git a/lightning/src/ln/wire.rs b/lightning/src/ln/wire.rs
index 4caf3543..d3cc257f 100644
--- a/lightning/src/ln/wire.rs
+++ b/lightning/src/ln/wire.rs
@@ -20,7 +20,7 @@ use util::ser::{Readable, Writeable, Writer};
 /// decoders.
 pub trait CustomMessageReader {
 	/// The type of the message decoded by the implementation.
-	type CustomMessage: core::fmt::Debug + Type + Writeable;
+	type CustomMessage: Type;
 	/// Decodes a custom message to `CustomMessageType`. If the given message type is known to the
 	/// implementation and the message could be decoded, must return `Ok(Some(message))`. If the
 	/// message type is unknown to the implementation, must return `Ok(None)`. If a decoding error
@@ -245,12 +245,12 @@ pub(crate) use self::encode::Encode;
 /// Defines a type identifier for sending messages over the wire.
 ///
 /// Messages implementing this trait specify a type and must be [`Writeable`].
-pub trait Type {
+pub trait Type: core::fmt::Debug + Writeable {
 	/// Returns the type identifying the message payload.
 	fn type_id(&self) -> u16;
 }
 
-impl<T> Type for T where T: Encode {
+impl<T: core::fmt::Debug + Writeable> Type for T where T: Encode {
 	fn type_id(&self) -> u16 {
 		T::TYPE
 	}
@@ -457,6 +457,10 @@ mod tests {
 		}
 	}
 
+	impl Type for () {
+		fn type_id(&self) -> u16 { unreachable!(); }
+	}
+
 	#[test]
 	fn is_even_message_type() {
 		let message = Message::<()>::Unknown(42);