Apply map_unwrap_or to Clippy itself

profetia · profetia · commit 0b7431ebbe6b · 2025-09-24T08:53:48.000+08:00
diff --git a/clippy_lints/src/derivable_impls.rs b/clippy_lints/src/derivable_impls.rs
@@ -105,7 +105,7 @@ fn check_struct<'tcx>(
     if let TyKind::Path(QPath::Resolved(_, p)) = self_ty.kind
         && let Some(PathSegment { args, .. }) = p.segments.last()
     {
-        let args = args.map(|a| a.args).unwrap_or(&[]);
+        let args = args.map_or(<&[_]>::default(), |a| a.args);
 
         // ty_args contains the generic parameters of the type declaration, while args contains the
         // arguments used at instantiation time. If both len are not equal, it means that some

Original file line number	Diff line number	Diff line change
`@@ -105,7 +105,7 @@ fn check_struct<'tcx>(`
`105`	`105`	`if let TyKind::Path(QPath::Resolved(_, p)) = self_ty.kind`
`106`	`106`	`&& let Some(PathSegment { args, .. }) = p.segments.last()`
`107`	`107`	`{`
`108`		`- let args = args.map(\|a\| a.args).unwrap_or(&[]);`
	`108`	`+ let args = args.map_or(<&[_]>::default(), \|a\| a.args);`
`109`	`109`
`110`	`110`	`// ty_args contains the generic parameters of the type declaration, while args contains the`
`111`	`111`	`// arguments used at instantiation time. If both len are not equal, it means that some`