39 lines
954 B
Rust
39 lines
954 B
Rust
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Regression test for Issue #20343.
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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> {}
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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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}
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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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}
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