1 files changed, 2 insertions, 4 deletions
diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs
index 0926561f4c5..f63a73acbf4 100644
--- a/compiler/rustc_span/src/lib.rs
+++ b/compiler/rustc_span/src/lib.rs
@@ -34,6 +34,7 @@ use hygiene::Transparency;
 pub use hygiene::{DesugaringKind, ExpnData, ExpnId, ExpnKind, ForLoopLoc, MacroKind};
 pub mod def_id;
 use def_id::{CrateNum, DefId, LOCAL_CRATE};
+pub mod lev_distance;
 mod span_encoding;
 pub use span_encoding::{Span, DUMMY_SP};
 
@@ -1014,10 +1015,7 @@ pub enum ExternalSourceKind {
 
 impl ExternalSource {
     pub fn is_absent(&self) -> bool {
-        match self {
-            ExternalSource::Foreign { kind: ExternalSourceKind::Present(_), .. } => false,
-            _ => true,
-        }
+        !matches!(self, ExternalSource::Foreign { kind: ExternalSourceKind::Present(_), .. })
     }
 
     pub fn get_source(&self) -> Option<&Lrc<String>> {