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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-3794.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-3794.rs b/src/test/ui/issues/issue-3794.rs new file mode 100644 index 000000000..1809e822c --- /dev/null +++ b/src/test/ui/issues/issue-3794.rs @@ -0,0 +1,33 @@ +// run-pass +#![feature(box_syntax)] +#![allow(dead_code)] + +trait T { + fn print(&self); +} + +#[derive(Debug)] +struct S { + s: isize, +} + +impl T for S { + fn print(&self) { + println!("{:?}", self); + } +} + +fn print_t(t: &dyn T) { + t.print(); +} + +fn print_s(s: &S) { + s.print(); +} + +pub fn main() { + let s: Box<S> = box S { s: 5 }; + print_s(&*s); + let t: Box<dyn T> = s as Box<dyn T>; + print_t(&*t); +} |