call .as_deref() instead of .as_ref().map(Deref::deref) (clippy::option_as_ref_deref)

matthiaskrgr · matthiaskrgr · commit 254ceae30aa9 · 2020-03-07T21:48:17.000+01:00
diff --git a/src/librustc_resolve/late/diagnostics.rs b/src/librustc_resolve/late/diagnostics.rs
@@ -1107,11 +1107,7 @@ impl<'tcx> LifetimeContext<'_, 'tcx> {
                 }
             };
 
-            match (
-                lifetime_names.len(),
-                lifetime_names.iter().next(),
-                snippet.as_ref().map(|s| s.as_str()),
-            ) {
+            match (lifetime_names.len(), lifetime_names.iter().next(), snippet.as_deref()) {
                 (1, Some(name), Some("&")) => {
                     suggest_existing(err, format!("&{} ", name));
                 }

Original file line number	Diff line number	Diff line change
`@@ -1107,11 +1107,7 @@ impl<'tcx> LifetimeContext<'_, 'tcx> {`
`1107`	`1107`	`}`
`1108`	`1108`	`};`
`1109`	`1109`
`1110`		`- match (`
`1111`		`- lifetime_names.len(),`
`1112`		`- lifetime_names.iter().next(),`
`1113`		`- snippet.as_ref().map(\|s\| s.as_str()),`
`1114`		`- ) {`
	`1110`	`+ match (lifetime_names.len(), lifetime_names.iter().next(), snippet.as_deref()) {`
`1115`	`1111`	`(1, Some(name), Some("&")) => {`
`1116`	`1112`	`suggest_existing(err, format!("&{} ", name));`
`1117`	`1113`	`}`