rust/src/test/compile-fail/const-pattern-irrefutable.rs
Jeffrey Seyfried 6372a6d7c2 Improve diagnostics for pattern bindings that illegally shadow items.
Improve unused import detection.
2016-08-01 19:09:58 +00:00

30 lines
1.1 KiB
Rust

// Copyright 2015 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.
mod foo {
pub const b: u8 = 2;
pub const d: u8 = 2;
}
use foo::b as c; //~ NOTE is imported here
use foo::d; //~ NOTE is imported here
const a: u8 = 2; //~ NOTE is defined here
fn main() {
let a = 4; //~ ERROR let bindings cannot shadow constants
//~^ NOTE cannot be named the same as a constant
let c = 4; //~ ERROR let bindings cannot shadow constants
//~^ NOTE cannot be named the same as a constant
let d = 4; //~ ERROR let bindings cannot shadow constants
//~^ NOTE cannot be named the same as a constant
fn f() {} // Check that the `NOTE`s still work with an item here (c.f. issue #35115).
}