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// Copyright 2013 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(non_camel_case_types)]
#![deny(dead_code)]
struct Foo {
x: usize,
b: bool, //~ ERROR: struct field is never used
}
fn field_read(f: Foo) -> usize {
f.x.pow(2)
}
enum XYZ {
X, //~ ERROR variant is never used
Y { //~ ERROR variant is never used
a: String,
b: i32, //~ ERROR: struct field is never used
c: i32, //~ ERROR: struct field is never used
},
Z
}
fn field_match_in_patterns(b: XYZ) -> String {
match b {
XYZ::Y { a, b: _, .. } => a,
_ => "".to_string()
}
}
struct Bar {
x: usize, //~ ERROR: struct field is never used
b: bool,
c: bool, //~ ERROR: struct field is never used
_guard: ()
}
#[repr(C)]
struct Baz {
x: u32,
}
fn field_match_in_let(f: Bar) -> bool {
let Bar { b, c: _, .. } = f;
b
}
fn main() {
field_read(Foo { x: 1, b: false });
field_match_in_patterns(XYZ::Z);
field_match_in_let(Bar { x: 42, b: true, c: false, _guard: () });
let _ = Baz { x: 0 };
}
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