X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Ffeatures.rs;h=d1f6b89db4f87e968e3624289331c00c476875fe;hb=4be201641d262deca678ded5772fdc51cfa86b3e;hp=e78fa3d50d2d05c5bfcafe1fd58eb1b654c167f7;hpb=69ee4860848d5992b238eca3343141004d9d1572;p=rust-lightning

diff --git a/lightning/src/ln/features.rs b/lightning/src/ln/features.rs
index e78fa3d5..d1f6b89d 100644
--- a/lightning/src/ln/features.rs
+++ b/lightning/src/ln/features.rs
@@ -25,6 +25,7 @@
 use io;
 use prelude::*;
 use core::{cmp, fmt};
+use core::hash::{Hash, Hasher};
 use core::marker::PhantomData;
 
 use bitcoin::bech32;
@@ -362,6 +363,11 @@ impl<T: sealed::Context> Clone for Features<T> {
 		}
 	}
 }
+impl<T: sealed::Context> Hash for Features<T> {
+	fn hash<H: Hasher>(&self, hasher: &mut H) {
+		self.flags.hash(hasher);
+	}
+}
 impl<T: sealed::Context> PartialEq for Features<T> {
 	fn eq(&self, o: &Self) -> bool {
 		self.flags.eq(&o.flags)
@@ -548,7 +554,9 @@ impl<T: sealed::Context> Features<T> {
 		&self.flags
 	}
 
-	pub(crate) fn requires_unknown_bits(&self) -> bool {
+	/// Returns true if this `Features` object contains unknown feature flags which are set as
+	/// "required".
+	pub fn requires_unknown_bits(&self) -> bool {
 		// Bitwise AND-ing with all even bits set except for known features will select required
 		// unknown features.
 		let byte_count = T::KNOWN_FEATURE_MASK.len();