Support constructing BlindedPaths for payments.

[rust-lightning] / lightning / src / blinded_path / utils.rs

diff --git a/lightning/src/blinded_path/utils.rs b/lightning/src/blinded_path/utils.rs
index 9b1ce50b10ebefa61943680694c5ce5852d20d43..e1feed97a27cb6277efc0201016f9bfa61267c68 100644 (file)
--- a/lightning/src/blinded_path/utils.rs
+++ b/lightning/src/blinded_path/utils.rs
@@ -111,11 +111,11 @@ pub(super) fn construct_blinded_hops<'a, T, I1, I2>(
 ) -> Result<Vec<BlindedHop>, secp256k1::Error>
 where
        T: secp256k1::Signing + secp256k1::Verification,
-       I1: ExactSizeIterator<Item=&'a PublicKey>,
+       I1: Iterator<Item=&'a PublicKey>,
        I2: Iterator,
        I2::Item: Writeable
 {
-       let mut blinded_hops = Vec::with_capacity(unblinded_pks.len());
+       let mut blinded_hops = Vec::with_capacity(unblinded_pks.size_hint().0);
        construct_keys_callback(
                secp_ctx, unblinded_pks, None, session_priv,
                |blinded_node_id, _, _, encrypted_payload_rho, _, _| {