Reference-rhs bitwise operations for features.

diff --git a/lightning/src/ln/features.rs b/lightning/src/ln/features.rs
index 400888ff9784ff0f8217de151f5b4f24d23509a7..3e3484e7372fc4a9ee59adaa01eb35badec11416 100644 (file)
--- a/lightning/src/ln/features.rs
+++ b/lightning/src/ln/features.rs
@@ -77,6 +77,7 @@
 use crate::{io, io_extras};
 use crate::prelude::*;
 use core::{cmp, fmt};
+use core::borrow::Borrow;
 use core::hash::{Hash, Hasher};
 use core::marker::PhantomData;
 
@@ -431,15 +432,21 @@ pub struct Features<T: sealed::Context> {
        mark: PhantomData<T>,
 }
 
+impl<T: sealed::Context, Rhs: Borrow<Self>> core::ops::BitOrAssign<Rhs> for Features<T> {
+       fn bitor_assign(&mut self, rhs: Rhs) {
+               let total_feature_len = cmp::max(self.flags.len(), rhs.borrow().flags.len());
+               self.flags.resize(total_feature_len, 0u8);
+               for (byte, rhs_byte) in self.flags.iter_mut().zip(rhs.borrow().flags.iter()) {
+                       *byte |= *rhs_byte;
+               }
+       }
+}
+
 impl<T: sealed::Context> core::ops::BitOr for Features<T> {
        type Output = Self;
 
        fn bitor(mut self, o: Self) -> Self {
-               let total_feature_len = cmp::max(self.flags.len(), o.flags.len());
-               self.flags.resize(total_feature_len, 0u8);
-               for (byte, o_byte) in self.flags.iter_mut().zip(o.flags.iter()) {
-                       *byte |= *o_byte;
-               }
+               self |= o;
                self
        }
 }