Rollup merge of #79505 - matklad:cleanup, r=jonas-schievink

Dylan-DPC · web-flow · commit 6eb5245555cd · 2020-11-29T03:14:24.000+01:00
Cleanup: shorter and faster code
diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs
@@ -94,9 +94,9 @@ fn to_camel_case(s: &str) -> String {
                 }
 
                 if new_word {
-                    camel_cased_component.push_str(&c.to_uppercase().to_string());
+                    camel_cased_component.extend(c.to_uppercase());
                 } else {
-                    camel_cased_component.push_str(&c.to_lowercase().to_string());
+                    camel_cased_component.extend(c.to_lowercase());
                 }
 
                 prev_is_lower_case = c.is_lowercase();

Original file line number	Diff line number	Diff line change
`@@ -94,9 +94,9 @@ fn to_camel_case(s: &str) -> String {`
`94`	`94`	`}`
`95`	`95`
`96`	`96`	`if new_word {`
`97`		`- camel_cased_component.push_str(&c.to_uppercase().to_string());`
	`97`	`+ camel_cased_component.extend(c.to_uppercase());`
`98`	`98`	`} else {`
`99`		`- camel_cased_component.push_str(&c.to_lowercase().to_string());`
	`99`	`+ camel_cased_component.extend(c.to_lowercase());`
`100`	`100`	`}`
`101`	`101`
`102`	`102`	`prev_is_lower_case = c.is_lowercase();`