From b4c73a297c59dea86e7e529701d6e06d55e5e2e2 Mon Sep 17 00:00:00 2001 From: Yuki Okushi Date: Fri, 21 Jun 2019 15:18:00 +0900 Subject: [PATCH] Add test for issue-27697 --- src/test/ui/issues/issue-27697.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 src/test/ui/issues/issue-27697.rs diff --git a/src/test/ui/issues/issue-27697.rs b/src/test/ui/issues/issue-27697.rs new file mode 100644 index 0000000000000..83070012f5f04 --- /dev/null +++ b/src/test/ui/issues/issue-27697.rs @@ -0,0 +1,21 @@ +// run-pass + +use std::ops::Deref; + +trait MyTrait { + fn do_something(&self); + fn as_str(&self) -> &str; +} + +impl Deref for dyn MyTrait { + type Target = str; + fn deref(&self) -> &Self::Target { + self.as_str() + } +} + +fn trait_object_does_something(t: &dyn MyTrait) { + t.do_something() +} + +fn main() {}