rust/src/test/ui/reachable/expr_struct.rs

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// Copyright 2016 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.
#![allow(unused_variables)]
#![allow(unused_assignments)]
#![allow(dead_code)]
#![deny(unreachable_code)]
#![feature(never_type)]
#![feature(type_ascription)]
struct Foo {
a: usize,
b: usize,
}
fn a() {
// struct expr is unreachable:
let x = Foo { a: 22, b: 33, ..return };
}
fn b() {
// the `33` is unreachable:
let x = Foo { a: return, b: 33, ..return };
}
fn c() {
// the `..return` is unreachable:
let x = Foo { a: 22, b: return, ..return };
}
fn d() {
// the struct expr is unreachable:
let x = Foo { a: 22, b: return };
}
fn main() { }