From 2de3f2c4ffe4b066e7935771d17054fa85eb5f22 Mon Sep 17 00:00:00 2001
From: Elias Rohrer <dev@tnull.de>
Date: Fri, 2 Feb 2024 09:55:20 +0100
Subject: [PATCH] f Avoid superfluous collect

---
 lightning/src/util/sweep.rs | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/lightning/src/util/sweep.rs b/lightning/src/util/sweep.rs
index d144e96e202..5e726555fe4 100644
--- a/lightning/src/util/sweep.rs
+++ b/lightning/src/util/sweep.rs
@@ -318,16 +318,14 @@ where
 		&self, mut output_descriptors: Vec<SpendableOutputDescriptor>,
 		channel_id: Option<ChannelId>, exclude_static_ouputs: bool,
 	) {
-		let relevant_descriptors = if exclude_static_ouputs {
-			output_descriptors
-				.drain(..)
-				.filter(|desc| !matches!(desc, SpendableOutputDescriptor::StaticOutput { .. }))
-				.collect::<Vec<_>>()
-		} else {
-			output_descriptors
-		};
-
-		if relevant_descriptors.is_empty() {
+		let mut relevant_descriptors = output_descriptors
+			.drain(..)
+			.filter(|desc| {
+				!(exclude_static_ouputs &&
+				matches!(desc, SpendableOutputDescriptor::StaticOutput { .. }))
+			}).peekable();
+
+		if relevant_descriptors.peek().is_none() {
 			return;
 		}