src/test/ui/unsafe/access_union_field.rs

   1 // revisions: mir thir
   2 // [thir]compile-flags: -Z thir-unsafeck
   3
   4 #![allow(unused_variables)]
   5
   6 union Foo {
   7     bar: i8,
   8     baz: u8,
   9 }
  10
  11 fn main() {
  12     let foo = Foo { bar: 5 };
  13     let a = foo.bar; //~ ERROR access to union field is unsafe and requires unsafe function or block
  14     let b = foo.baz; //~ ERROR access to union field is unsafe and requires unsafe function or block
  15 }