Fix DerefMut example

LukeMathWalker · LukeMathWalker · commit ede0c38202f8 · 2025-07-07T17:25:32.000+02:00
diff --git a/src/idiomatic/leveraging-the-type-system/newtype-pattern/is-it-encapsulated.md b/src/idiomatic/leveraging-the-type-system/newtype-pattern/is-it-encapsulated.md
@@ -19,12 +19,12 @@ impl Username {
     }
 }
 
-impl DerefMut for Username {
+impl std::ops::DerefMut for Username { // ‼️
     fn deref_mut(&mut self) -> &mut Self::Target {
         &mut self.0
     }
 }
-# impl Deref for Username {
+# impl std::ops::Deref for Username {
 #     type Target = str;
 #
 #     fn deref(&self) -> &Self::Target {

Original file line number	Diff line number	Diff line change
`@@ -19,12 +19,12 @@ impl Username {`
`19`	`19`	`}`
`20`	`20`	`}`
`21`	`21`
`22`		`-impl DerefMut for Username {`
	`22`	`+impl std::ops::DerefMut for Username { // ‼️`
`23`	`23`	`fn deref_mut(&mut self) -> &mut Self::Target {`
`24`	`24`	`&mut self.0`
`25`	`25`	`}`
`26`	`26`	`}`
`27`		`-# impl Deref for Username {`
	`27`	`+# impl std::ops::Deref for Username {`
`28`	`28`	`# type Target = str;`
`29`	`29`	`#`
`30`	`30`	`# fn deref(&self) -> &Self::Target {`