Use `crate::prelude::*` rather than specific imports

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

diff --git a/lightning-invoice/src/utils.rs b/lightning-invoice/src/utils.rs
index 5e8b72467e5da655cd9f77876ac692b948498833..1d6b9210afd967f58c79e7453f53a3eda856a9ee 100644 (file)
--- a/lightning-invoice/src/utils.rs
+++ b/lightning-invoice/src/utils.rs
@@ -16,8 +16,10 @@ use lightning::routing::gossip::RoutingFees;
 use lightning::routing::router::{RouteHint, RouteHintHop, Router};
 use lightning::util::logger::{Logger, Record};
 use secp256k1::PublicKey;
+use alloc::collections::{btree_map, BTreeMap};
 use core::ops::Deref;
 use core::time::Duration;
+#[cfg(not(feature = "std"))]
 use core::iter::Iterator;
 
 /// Utility to create an invoice that can be paid to one of multiple nodes, or a "phantom invoice."
@@ -603,7 +605,7 @@ fn sort_and_filter_channels<L: Deref>(
 where
        L::Target: Logger,
 {
-       let mut filtered_channels: HashMap<PublicKey, ChannelDetails> = HashMap::new();
+       let mut filtered_channels: BTreeMap<PublicKey, ChannelDetails> = BTreeMap::new();
        let min_inbound_capacity = min_inbound_capacity_msat.unwrap_or(0);
        let mut min_capacity_channel_exists = false;
        let mut online_channel_exists = false;
@@ -664,7 +666,7 @@ where
                }
 
                match filtered_channels.entry(channel.counterparty.node_id) {
-                       hash_map::Entry::Occupied(mut entry) => {
+                       btree_map::Entry::Occupied(mut entry) => {
                                let current_max_capacity = entry.get().inbound_capacity_msat;
                                // If this channel is public and the previous channel is not, ensure we replace the
                                // previous channel to avoid announcing non-public channels.
@@ -697,7 +699,7 @@ where
                                                channel.inbound_capacity_msat);
                                }
                        }
-                       hash_map::Entry::Vacant(entry) => {
+                       btree_map::Entry::Vacant(entry) => {
                                entry.insert(channel);
                        }
                }