diff options
Diffstat (limited to 'src/test/ui/self/arbitrary_self_types_stdlib_pointers.rs')
-rw-r--r-- | src/test/ui/self/arbitrary_self_types_stdlib_pointers.rs | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/test/ui/self/arbitrary_self_types_stdlib_pointers.rs b/src/test/ui/self/arbitrary_self_types_stdlib_pointers.rs new file mode 100644 index 000000000..29563fbbd --- /dev/null +++ b/src/test/ui/self/arbitrary_self_types_stdlib_pointers.rs @@ -0,0 +1,54 @@ +// run-pass +#![feature(arbitrary_self_types)] +#![feature(rustc_attrs)] + +use std::{ + rc::Rc, + sync::Arc, + pin::Pin, +}; + +trait Trait { + fn by_rc(self: Rc<Self>) -> i64; + fn by_arc(self: Arc<Self>) -> i64; + fn by_pin_mut(self: Pin<&mut Self>) -> i64; + fn by_pin_box(self: Pin<Box<Self>>) -> i64; + fn by_pin_pin_pin_ref(self: Pin<Pin<Pin<&Self>>>) -> i64; +} + +impl Trait for i64 { + fn by_rc(self: Rc<Self>) -> i64 { + *self + } + fn by_arc(self: Arc<Self>) -> i64 { + *self + } + fn by_pin_mut(self: Pin<&mut Self>) -> i64 { + *self + } + fn by_pin_box(self: Pin<Box<Self>>) -> i64 { + *self + } + fn by_pin_pin_pin_ref(self: Pin<Pin<Pin<&Self>>>) -> i64 { + *self + } +} + +fn main() { + let rc = Rc::new(1i64) as Rc<dyn Trait>; + assert_eq!(1, rc.by_rc()); + + let arc = Arc::new(2i64) as Arc<dyn Trait>; + assert_eq!(2, arc.by_arc()); + + let mut value = 3i64; + let pin_mut = Pin::new(&mut value) as Pin<&mut dyn Trait>; + assert_eq!(3, pin_mut.by_pin_mut()); + + let pin_box = Into::<Pin<Box<i64>>>::into(Box::new(4i64)) as Pin<Box<dyn Trait>>; + assert_eq!(4, pin_box.by_pin_box()); + + let value = 5i64; + let pin_pin_pin_ref = Pin::new(Pin::new(Pin::new(&value))) as Pin<Pin<Pin<&dyn Trait>>>; + assert_eq!(5, pin_pin_pin_ref.by_pin_pin_pin_ref()); +} |