rust/src/test/ui/macros/format-unused-lables.rs

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// Copyright 2017 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.
fn main() {
println!("Test", 123, 456, 789);
println!("Test2",
123,
456,
789
);
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println!("Some stuff", UNUSED="args"); //~ ERROR named argument never used
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println!("Some more $STUFF",
"woo!",
STUFF=
"things"
, UNUSED="args");
}