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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/unsized-locals/by-value-trait-object-safety-withdefault.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/unsized-locals/by-value-trait-object-safety-withdefault.rs b/src/test/ui/unsized-locals/by-value-trait-object-safety-withdefault.rs new file mode 100644 index 000000000..957991f85 --- /dev/null +++ b/src/test/ui/unsized-locals/by-value-trait-object-safety-withdefault.rs @@ -0,0 +1,23 @@ +// run-pass + +#![allow(incomplete_features)] +#![feature(unsized_locals, unsized_fn_params)] + +pub trait Foo { + fn foo(self) -> String { + format!("hello") + } +} + +struct A; + +impl Foo for A {} + +fn main() { + let x = *(Box::new(A) as Box<dyn Foo>); + assert_eq!(x.foo(), format!("hello")); + + // I'm not sure whether we want this to work + let x = Box::new(A) as Box<dyn Foo>; + assert_eq!(x.foo(), format!("hello")); +} |