a9fc3901b0
Replace feature(never_type) with feature(exhaustive_patterns). feature(exhaustive_patterns) only covers the pattern-exhaustives checks that used to be covered by feature(never_type)
40 lines
979 B
Rust
40 lines
979 B
Rust
// Copyright 2016 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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#![allow(unused_variables)]
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#![allow(unused_assignments)]
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#![allow(dead_code)]
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#![deny(unreachable_code)]
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fn a() {
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// Here the tail expression is considered unreachable:
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let x = {
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return;
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22 //~ ERROR unreachable
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};
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}
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fn b() {
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// Here the `x` assignment is considered unreachable, not the block:
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let x = {
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return;
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};
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}
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fn c() {
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// Here the `println!` is unreachable:
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let x = {
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return;
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println!("foo");
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22
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};
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}
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fn main() { }
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