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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// ignore-pretty
// Don't fail on blocks without results
// There are several tests in this run-pass that raised
// when this bug was opened. The cases where the compiler
// failed before the fix have a comment.
struct S {x:()}
fn test(slot: &mut Option<proc() -> proc()>, _: proc()) -> () {
let a = slot.take();
let _a = match a {
// `{let .. a(); }` would break
Some(a) => { let _a = a(); },
None => (),
};
}
fn not(b: bool) -> bool {
if b {
!b
} else {
// `fail!(...)` would break
fail!("Break the compiler");
}
}
pub fn main() {
// {} would break
let _r = {};
let mut slot = None;
// `{ test(...); }` would break
let _s : S = S{ x: { test(&mut slot, proc() {}); } };
let _b = not(true);
}
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