mirror of https://github.com/rust-lang/rust
36 lines
654 B
Rust
36 lines
654 B
Rust
//@ run-pass
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#![allow(unused_variables)]
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// Regression test for Issue #20343.
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//@ pretty-expanded FIXME #23616
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#![deny(dead_code)]
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struct B { b: u32 }
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struct C;
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struct D;
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trait T<A> { fn dummy(&self, a: A) { } }
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impl<A> T<A> for () {}
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impl B {
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// test for unused code in arguments
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fn foo(B { b }: B) -> u32 { b }
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// test for unused code in return type
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fn bar() -> C { unsafe { ::std::mem::transmute(()) } }
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// test for unused code in generics
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fn baz<A: T<D>>() {}
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fn foz<A: T<D>>(a: A) { a.dummy(D); }
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}
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pub fn main() {
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let b = B { b: 3 };
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B::foo(b);
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B::bar();
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B::baz::<()>();
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B::foz::<()>(());
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}
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