Remove a needless mutability

oli-obk · oli-obk · commit 771105efc3cf · 2025-04-11T08:22:16.000Z
diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs
@@ -254,7 +254,7 @@ impl ResolverAstLowering {
     ///
     /// The extra lifetimes that appear from the parenthesized `Fn`-trait desugaring
     /// should appear at the enclosing `PolyTraitRef`.
-    fn extra_lifetime_params(&mut self, id: NodeId) -> Vec<(Ident, NodeId, LifetimeRes)> {
+    fn extra_lifetime_params(&self, id: NodeId) -> Vec<(Ident, NodeId, LifetimeRes)> {
         self.extra_lifetime_params_map.get(&id).cloned().unwrap_or_default()
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -254,7 +254,7 @@ impl ResolverAstLowering {`
`254`	`254`	`///`
`255`	`255`	/// The extra lifetimes that appear from the parenthesized `Fn`-trait desugaring
`256`	`256`	/// should appear at the enclosing `PolyTraitRef`.
`257`		`- fn extra_lifetime_params(&mut self, id: NodeId) -> Vec<(Ident, NodeId, LifetimeRes)> {`
	`257`	`+ fn extra_lifetime_params(&self, id: NodeId) -> Vec<(Ident, NodeId, LifetimeRes)> {`
`258`	`258`	`self.extra_lifetime_params_map.get(&id).cloned().unwrap_or_default()`
`259`	`259`	`}`
`260`	`260`	`}`