27 lines
805 B
Rust
27 lines
805 B
Rust
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// Copyright 2017 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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#![feature(never_type)]
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enum Helper<T, U> {
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T(T, [!; 0]),
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#[allow(dead_code)]
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U(U),
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}
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fn transmute<T, U>(t: T) -> U {
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let Helper::U(u) = Helper::T(t, []); //~ ERROR refutable pattern in local binding: `T(_, _)` not covered
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u
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}
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fn main() {
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println!("{:?}", transmute::<&str, (*const u8, u64)>("type safety"));
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}
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