42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
// 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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#![feature(const_fn)]
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enum Cake {
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BlackForest,
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Marmor,
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}
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use Cake::*;
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const BOO: (Cake, Cake) = (Marmor, BlackForest);
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//~^ ERROR: constant evaluation error [E0080]
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//~| unimplemented constant expression: enum variants
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const FOO: Cake = BOO.1;
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const fn foo() -> Cake {
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Marmor
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//~^ ERROR: constant evaluation error [E0080]
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//~| unimplemented constant expression: enum variants
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}
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const WORKS: Cake = Marmor;
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const GOO: Cake = foo();
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fn main() {
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match BlackForest {
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FOO => println!("hi"), //~ NOTE: for pattern here
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GOO => println!("meh"), //~ NOTE: for pattern here
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WORKS => println!("möp"),
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_ => println!("bye"),
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}
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}
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