Don't accept Mutability by ref

WaffleLapkin · WaffleLapkin · commit e51cd6e8224c · 2022-11-23T20:26:31.000Z
diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs
@@ -789,15 +789,15 @@ impl Mutability {
     }
 
     /// Returns `""` (empty string) or `"mut "` depending on the mutability.
-    pub fn prefix_str(&self) -> &'static str {
+    pub fn prefix_str(self) -> &'static str {
         match self {
             Mutability::Mut => "mut ",
             Mutability::Not => "",
         }
     }
 
     /// Returns `"&"` or `"&mut "` depending on the mutability.
-    pub fn ref_prefix_str(&self) -> &'static str {
+    pub fn ref_prefix_str(self) -> &'static str {
         match self {
             Mutability::Not => "&",
             Mutability::Mut => "&mut ",

Original file line number	Diff line number	Diff line change
`@@ -789,15 +789,15 @@ impl Mutability {`
`789`	`789`	`}`
`790`	`790`
`791`	`791`	/// Returns `""` (empty string) or `"mut "` depending on the mutability.
`792`		`- pub fn prefix_str(&self) -> &'static str {`
	`792`	`+ pub fn prefix_str(self) -> &'static str {`
`793`	`793`	`match self {`
`794`	`794`	`Mutability::Mut => "mut ",`
`795`	`795`	`Mutability::Not => "",`
`796`	`796`	`}`
`797`	`797`	`}`
`798`	`798`
`799`	`799`	/// Returns `"&"` or `"&mut "` depending on the mutability.
`800`		`- pub fn ref_prefix_str(&self) -> &'static str {`
	`800`	`+ pub fn ref_prefix_str(self) -> &'static str {`
`801`	`801`	`match self {`
`802`	`802`	`Mutability::Not => "&",`
`803`	`803`	`Mutability::Mut => "&mut ",`