a4660dfea2
Avoid overlapping spans by only pointing at the arguments that are not being used in the argument string. Enable libsyntax to have diagnostics with multiple primary spans by accepting `Into<MultiSpan>` instead of `Span`.
20 lines
920 B
Rust
20 lines
920 B
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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fn main() {
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println!("%.*3$s %s!\n", "Hello,", "World", 4); //~ ERROR multiple unused formatting arguments
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println!("%1$*2$.*3$f", 123.456); //~ ERROR never used
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// This should *not* produce hints, on the basis that there's equally as
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// many "correct" format specifiers. It's *probably* just an actual typo.
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println!("{} %f", "one", 2.0); //~ ERROR never used
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println!("Hi there, $NAME.", NAME="Tim"); //~ ERROR never used
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}
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