fix: clippy warnings.

tasks/ast_codegen/src/generators/visit.rs

@@ -538,11 +538,11 @@ impl<'a> VisitBuilder<'a> {
                 }
                 let typ_wrapper = ty_res.wrapper;
                 let markers = markers.unwrap();
-                let visit_as = markers.as_ref().map(|mk| mk.visit_as.clone()).flatten();
-                let visit_args = markers.map(|mk| mk.visit_args).flatten();
+                let visit_as = markers.as_ref().and_then(|mk| mk.visit_as.clone());
+                let visit_args = markers.and_then(|mk| mk.visit_args);
 
                 let have_enter_scope = get_scope_markers(&it.attrs)
-                    .is_some_and(|it| matches!(it, Ok(ScopeMarkers { enter_before: true, .. })));
+                    .is_some_and(|it| matches!(it, Ok(ScopeMarkers { enter_before: true })));
                 let have_enter_node = get_visit_markers(&it.attrs)
                     .is_some_and(|it| matches!(it, Ok(VisitMarkers { enter_before: true, .. })));
 

tasks/ast_codegen/src/markers.rs

@@ -101,6 +101,7 @@ pub fn get_visit_markers<'a, I>(attrs: I) -> Option<crate::Result<VisitMarkers>>
 where
     I: IntoIterator<Item = &'a Attribute>,
 {
+    #[allow(clippy::trivially_copy_pass_by_ref)]
     fn predicate(it: &&Attribute) -> bool {
         it.path().is_ident("visit")
     }
@@ -145,7 +146,7 @@ where
                     }
                 }
             })
-            .map(|_| VisitMarkers { visit_as, visit_args, enter_before, ignore })
+            .map(|()| VisitMarkers { visit_as, visit_args, enter_before, ignore })
             .normalize()
     })
 }
@@ -154,6 +155,7 @@ pub fn get_scope_markers<'a, I>(attrs: I) -> Option<crate::Result<ScopeMarkers>>
 where
     I: IntoIterator<Item = &'a Attribute>,
 {
+    #[allow(clippy::trivially_copy_pass_by_ref)]
     fn predicate(it: &&Attribute) -> bool {
         it.path().is_ident("scope")
     }