67 lines
1.5 KiB
Rust
67 lines
1.5 KiB
Rust
// 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)]
|
|
|
|
extern crate libc;
|
|
|
|
use std::num::Int;
|
|
|
|
struct Foo {
|
|
x: uint,
|
|
b: bool, //~ ERROR: struct field is never used
|
|
marker: std::kinds::marker::NoCopy
|
|
}
|
|
|
|
fn field_read(f: Foo) -> uint {
|
|
f.x.pow(2)
|
|
}
|
|
|
|
enum XYZ {
|
|
X, //~ ERROR variant is never used
|
|
Y { //~ ERROR variant is never used
|
|
a: String,
|
|
b: int //~ ERROR: struct field is never used
|
|
},
|
|
Z
|
|
}
|
|
|
|
fn field_match_in_patterns(b: XYZ) -> String {
|
|
match b {
|
|
XYZ::Y { a, .. } => a,
|
|
_ => "".to_string()
|
|
}
|
|
}
|
|
|
|
struct Bar {
|
|
x: uint, //~ ERROR: struct field is never used
|
|
b: bool,
|
|
_guard: ()
|
|
}
|
|
|
|
#[repr(C)]
|
|
struct Baz {
|
|
x: libc::c_uint
|
|
}
|
|
|
|
fn field_match_in_let(f: Bar) -> bool {
|
|
let Bar { b, .. } = f;
|
|
b
|
|
}
|
|
|
|
fn main() {
|
|
field_read(Foo { x: 1, b: false, marker: std::kinds::marker::NoCopy });
|
|
field_match_in_patterns(XYZ::Z);
|
|
field_match_in_let(Bar { x: 42u, b: true, _guard: () });
|
|
let _ = Baz { x: 0 };
|
|
}
|