diff options
Diffstat (limited to 'tests/ui/traits/objects-owned-object-borrowed-method-headerless.rs')
-rw-r--r-- | tests/ui/traits/objects-owned-object-borrowed-method-headerless.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/traits/objects-owned-object-borrowed-method-headerless.rs b/tests/ui/traits/objects-owned-object-borrowed-method-headerless.rs new file mode 100644 index 000000000..fce1341fc --- /dev/null +++ b/tests/ui/traits/objects-owned-object-borrowed-method-headerless.rs @@ -0,0 +1,30 @@ +// run-pass +// Test invoked `&self` methods on owned objects where the values +// closed over do not contain managed values, and thus the boxes do +// not have headers. + +trait FooTrait { + fn foo(&self) -> usize; +} + +struct BarStruct { + x: usize +} + +impl FooTrait for BarStruct { + fn foo(&self) -> usize { + self.x + } +} + +pub fn main() { + let foos: Vec<Box<dyn FooTrait>> = vec![ + Box::new(BarStruct{ x: 0 }) as Box<dyn FooTrait>, + Box::new(BarStruct{ x: 1 }) as Box<dyn FooTrait>, + Box::new(BarStruct{ x: 2 }) as Box<dyn FooTrait>, + ]; + + for i in 0..foos.len() { + assert_eq!(i, foos[i].foo()); + } +} |