From e5b9dee5915229ef7cfe64e554b6466f97fc3260 Mon Sep 17 00:00:00 2001
From: Natsu Kagami <nki@nkagami.me>
Date: Tue, 13 May 2025 00:03:44 +0200
Subject: [PATCH] Fit range to len

---
 youmubot-osu/src/request/scores.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/youmubot-osu/src/request/scores.rs b/youmubot-osu/src/request/scores.rs
index fe7ce4b..1ef3171 100644
--- a/youmubot-osu/src/request/scores.rs
+++ b/youmubot-osu/src/request/scores.rs
@@ -102,7 +102,7 @@ impl Scores for Vec<Score> {
     }
 
     fn get_range(&mut self, range: Range<usize>) -> impl Future<Output = Result<&[Score]>> + Send {
-        future::ok(&self[range])
+        future::ok(&self[fit_range_to_len(self.len(), range)])
     }
 
     async fn find<F: FnMut(&Score) -> bool + Send>(&mut self, mut f: F) -> Result<Option<&Score>> {
@@ -110,6 +110,11 @@ impl Scores for Vec<Score> {
     }
 }
 
+#[inline]
+fn fit_range_to_len(len: usize, range: Range<usize>) -> Range<usize> {
+    range.start.min(len)..range.end.min(len)
+}
+
 /// A scores stream with a fetcher.
 pub(super) struct ScoresFetcher<T> {
     fetcher: T,
@@ -166,7 +171,7 @@ impl<T: FetchScores> Scores for ScoresFetcher<T> {
                 break;
             }
         }
-        Ok(&self.scores[range.start.min(self.len())..range.end.min(self.len())])
+        Ok(&self.scores[fit_range_to_len(self.len(), range)])
     }
 
     async fn find<F: FnMut(&Score) -> bool + Send>(&mut self, mut f: F) -> Result<Option<&Score>> {