Tidy error handling

1 files changed, 5 insertions, 6 deletions

diff --git a/day1/src/main.rs b/day1/src/main.rs
index 778fc6d..2849be2 100644
--- a/day1/src/main.rs
+++ b/day1/src/main.rs
@@ -12,17 +12,16 @@ impl FromStr for Rotation {
     type Err = ParseRotationError;
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let err = || ParseRotationError(s.into());
+
         let mut chars = s.chars();
-        let lr = chars.next().ok_or_else(|| ParseRotationError(s.into()))?;
-        let n: u16 = chars
-            .collect::<String>()
-            .parse()
-            .map_err(|_| ParseRotationError(s.into()))?;
+        let lr = chars.next().ok_or_else(err)?;
+        let n: u16 = chars.collect::<String>().parse().map_err(|_| err())?;
 
         match lr {
             'L' => Ok(Self::Left(n)),
             'R' => Ok(Self::Right(n)),
-            _ => Err(ParseRotationError(s.into())),
+            _ => Err(err()),
         }
     }
 }