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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/traits/coercion.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/traits/coercion.rs')
-rw-r--r-- | src/test/ui/traits/coercion.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/traits/coercion.rs b/src/test/ui/traits/coercion.rs new file mode 100644 index 000000000..e62742bac --- /dev/null +++ b/src/test/ui/traits/coercion.rs @@ -0,0 +1,35 @@ +// run-pass +#![allow(dead_code)] +#![allow(unused_mut)] +#![allow(unused_variables)] + +use std::io::{self, Write}; + +trait Trait { + fn f(&self); +} + +#[derive(Copy, Clone)] +struct Struct { + x: isize, + y: isize, +} + +impl Trait for Struct { + fn f(&self) { + println!("Hi!"); + } +} + +fn foo(mut a: Box<dyn Write>) {} + +pub fn main() { + let a = Struct { x: 1, y: 2 }; + let b: Box<dyn Trait> = Box::new(a); + b.f(); + let c: &dyn Trait = &a; + c.f(); + + let out = io::stdout(); + foo(Box::new(out)); +} |