diff options
Diffstat (limited to 'src/test/ui/self/object-safety-sized-self-return-Self.rs')
-rw-r--r-- | src/test/ui/self/object-safety-sized-self-return-Self.rs | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/src/test/ui/self/object-safety-sized-self-return-Self.rs b/src/test/ui/self/object-safety-sized-self-return-Self.rs deleted file mode 100644 index 222c75439..000000000 --- a/src/test/ui/self/object-safety-sized-self-return-Self.rs +++ /dev/null @@ -1,39 +0,0 @@ -// run-pass -// Check that a trait is still object-safe (and usable) if it has -// methods that return `Self` so long as they require `Self : Sized`. - - -trait Counter { - fn new() -> Self where Self : Sized; - fn tick(&mut self) -> u32; -} - -struct CCounter { - c: u32 -} - -impl Counter for CCounter { - fn new() -> CCounter { CCounter { c: 0 } } - fn tick(&mut self) -> u32 { self.c += 1; self.c } -} - -fn preticked<C:Counter>() -> C { - let mut c: C = Counter::new(); - tick(&mut c); - c -} - -fn tick(c: &mut dyn Counter) { - tick_generic(c); -} - -fn tick_generic<C:?Sized+Counter>(c: &mut C) { - c.tick(); - c.tick(); -} - -fn main() { - let mut c = preticked::<CCounter>(); - tick(&mut c); - assert_eq!(c.tick(), 5); -} |