use String::from instead of format!() macro to craft string clippy::useless_format

matthiaskrgr · matthiaskrgr · commit e2a511fe2059 · 2020-09-10T13:22:51.000+02:00
diff --git a/compiler/rustc_mir/src/transform/instrument_coverage.rs b/compiler/rustc_mir/src/transform/instrument_coverage.rs
@@ -353,7 +353,7 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
                             if !INCLUDE_COVERAGE_STATEMENTS {
                                 continue;
                             }
-                            format!("unreachable")
+                            String::from("unreachable")
                         }
                     },
                     _ => format!("{:?}", statement),

Original file line number	Diff line number	Diff line change
`@@ -353,7 +353,7 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {`
`353`	`353`	`if !INCLUDE_COVERAGE_STATEMENTS {`
`354`	`354`	`continue;`
`355`	`355`	`}`
`356`		`- format!("unreachable")`
	`356`	`+ String::from("unreachable")`
`357`	`357`	`}`
`358`	`358`	`},`
`359`	`359`	`_ => format!("{:?}", statement),`