30 lines
926 B
Rust
30 lines
926 B
Rust
// Copyright 2018 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(const_let)]
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fn main() {}
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struct FakeNeedsDrop;
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impl Drop for FakeNeedsDrop {
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fn drop(&mut self) {}
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}
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// ok
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const X: FakeNeedsDrop = { let x = FakeNeedsDrop; x };
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// error
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const Y: FakeNeedsDrop = { let mut x = FakeNeedsDrop; x = FakeNeedsDrop; x };
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//~^ ERROR constant contains unimplemented expression type
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// error
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const Z: () = { let mut x = None; x = Some(FakeNeedsDrop); };
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//~^ ERROR constant contains unimplemented expression type
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