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Yuri Astrakhan
f72e055625
Suggest removing an unnecessary trailing comma before the closing parenthesis in single-line format-like macro invocations (e.g. println!, format!, write!). The lint currently only runs on format-like macros because it relies on format-argument parsing; arbitrary user macros are not supported to avoid incorrect suggestions. - Lint is in the `style` group (allow-by-default) - Single-line only: multi-line macro invocations are not linted - Machine-applicable fix: removes the trailing comma
46 lines
878 B
Rust
46 lines
878 B
Rust
#![allow(clippy::match_single_binding, clippy::unnecessary_trailing_comma)]
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fn main() {
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println!();
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println!("");
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//~^ println_empty_string
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match "a" {
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_ => println!(""),
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//~^ println_empty_string
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}
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eprintln!();
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eprintln!("");
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//~^ println_empty_string
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match "a" {
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_ => eprintln!(""),
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//~^ println_empty_string
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}
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}
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#[rustfmt::skip]
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fn issue_16167() {
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//~v println_empty_string
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println!(
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"\
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\
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"
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,
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);
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match "a" {
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_ => println!("" ,), // there is a space between "" and comma
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//~^ println_empty_string
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}
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eprintln!("" ,); // there is a tab between "" and comma
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//~^ println_empty_string
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match "a" {
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_ => eprintln!("" ,), // tab and space between "" and comma
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//~^ println_empty_string
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}
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}
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