Remove some unnecessary unwraps

2023-10-13 00:28:49 +00:00
parent df4379b4eb
commit feedd68f80
3 changed files with 16 additions and 9 deletions
--- a/compiler/rustc_lint/src/unused.rs
+++ b/compiler/rustc_lint/src/unused.rs
@@ -353,7 +353,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults {
                ty::Generator(def_id, ..) => {
                    // async fn should be treated as "implementor of `Future`"
                    let must_use = if cx.tcx.generator_is_async(def_id) {
-                        let def_id = cx.tcx.lang_items().future_trait().unwrap();
+                        let def_id = cx.tcx.lang_items().future_trait()?;
                        is_def_must_use(cx, def_id, span)
                            .map(|inner| MustUsePath::Opaque(Box::new(inner)))
                    } else {