1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
//@ run-pass
#![allow(unused_variables)]
// Regression test for Issue #20343.
#![deny(dead_code)]
struct B { b: u32 }
struct C;
struct D;
trait T<A> { fn dummy(&self, a: A) { } }
impl<A> T<A> for () {}
impl B {
// test for unused code in arguments
fn foo(B { b }: B) -> u32 { b }
// test for unused code in return type
fn bar() -> C { unsafe { ::std::mem::transmute(()) } }
// test for unused code in generics
fn baz<A: T<D>>() {}
fn foz<A: T<D>>(a: A) { a.dummy(D); }
}
pub fn main() {
let b = B { b: 3 };
B::foo(b);
B::bar();
B::baz::<()>();
B::foz::<()>(());
}
|
