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Diffstat (limited to 'tests/ui/traits/inheritance/call-bound-inherited2.rs')
-rw-r--r-- | tests/ui/traits/inheritance/call-bound-inherited2.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/traits/inheritance/call-bound-inherited2.rs b/tests/ui/traits/inheritance/call-bound-inherited2.rs new file mode 100644 index 000000000..8576d29f2 --- /dev/null +++ b/tests/ui/traits/inheritance/call-bound-inherited2.rs @@ -0,0 +1,23 @@ +// run-pass +#![allow(dead_code)] + +trait Foo { fn f(&self) -> isize; } +trait Bar : Foo { fn g(&self) -> isize; } +trait Baz : Bar { fn h(&self) -> isize; } + +struct A { x: isize } + +impl Foo for A { fn f(&self) -> isize { 10 } } +impl Bar for A { fn g(&self) -> isize { 20 } } +impl Baz for A { fn h(&self) -> isize { 30 } } + +// Call a function on Foo, given a T: Baz, +// which is inherited via Bar +fn gg<T:Baz>(a: &T) -> isize { + a.f() +} + +pub fn main() { + let a = &A { x: 3 }; + assert_eq!(gg(a), 10); +} |