1 files changed, 9 insertions, 11 deletions
diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs
index 322c7104b..cef4c6f79 100644
--- a/compiler/rustc_span/src/lib.rs
+++ b/compiler/rustc_span/src/lib.rs
@@ -78,10 +78,10 @@ use sha2::Sha256;
 #[cfg(test)]
 mod tests;
 
-// Per-session global variables: this struct is stored in thread-local storage
-// in such a way that it is accessible without any kind of handle to all
-// threads within the compilation session, but is not accessible outside the
-// session.
+/// Per-session global variables: this struct is stored in thread-local storage
+/// in such a way that it is accessible without any kind of handle to all
+/// threads within the compilation session, but is not accessible outside the
+/// session.
 pub struct SessionGlobals {
     symbol_interner: symbol::Interner,
     span_interner: Lock<span_encoding::SpanInterner>,
@@ -217,9 +217,7 @@ impl RealFileName {
     pub fn local_path(&self) -> Option<&Path> {
         match self {
             RealFileName::LocalPath(p) => Some(p),
-            RealFileName::Remapped { local_path: p, virtual_name: _ } => {
-                p.as_ref().map(PathBuf::as_path)
-            }
+            RealFileName::Remapped { local_path, virtual_name: _ } => local_path.as_deref(),
         }
     }
 
@@ -240,7 +238,7 @@ impl RealFileName {
     pub fn remapped_path_if_available(&self) -> &Path {
         match self {
             RealFileName::LocalPath(p)
-            | RealFileName::Remapped { local_path: _, virtual_name: p } => &p,
+            | RealFileName::Remapped { local_path: _, virtual_name: p } => p,
         }
     }
 
@@ -361,8 +359,8 @@ impl FileName {
         FileNameDisplay { inner: self, display_pref: FileNameDisplayPreference::Remapped }
     }
 
-    // This may include transient local filesystem information.
-    // Must not be embedded in build outputs.
+    /// This may include transient local filesystem information.
+    /// Must not be embedded in build outputs.
     pub fn prefer_local(&self) -> FileNameDisplay<'_> {
         FileNameDisplay { inner: self, display_pref: FileNameDisplayPreference::Local }
     }
@@ -753,7 +751,7 @@ impl Span {
 
     /// Checks if a span is "internal" to a macro in which `unsafe`
     /// can be used without triggering the `unsafe_code` lint.
-    //  (that is, a macro marked with `#[allow_internal_unsafe]`).
+    /// (that is, a macro marked with `#[allow_internal_unsafe]`).
     pub fn allows_unsafe(self) -> bool {
         self.ctxt().outer_expn_data().allow_internal_unsafe
     }