wrong-hashset-issue-42918.rs

Author: Kivooeo

tests/ui/hashmap/hashset-enum-variant.rs

@@ -1,26 +1,28 @@
+//! Checks that `HashSet` initialization with enum variants correctly includes only
+//! specified variants, preventing platform-specific bugs
+//! where all enum variants were mistakenly included
+//!
+//! Regression test for <https://github.com/rust-lang/rust/issues/42918>
+
 //@ run-pass
-//
-#![allow(dead_code)]
 //@ compile-flags: -O
 
+#![allow(dead_code)]
+
 use std::collections::HashSet;
 
 #[derive(PartialEq, Debug, Hash, Eq, Clone, PartialOrd, Ord)]
 enum MyEnum {
     E0,
-
     E1,
-
     E2,
     E3,
     E4,
-
     E5,
     E6,
     E7,
 }
 
-
 fn main() {
     use MyEnum::*;
     let s: HashSet<_> = [E4, E1].iter().cloned().collect();