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Suggest parenthesising multiple arguments to dbg!() #59763

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varkor opened this issue Apr 6, 2019 · 1 comment · Fixed by #59826
Closed

Suggest parenthesising multiple arguments to dbg!() #59763

varkor opened this issue Apr 6, 2019 · 1 comment · Fixed by #59826
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A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix`.

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@varkor
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varkor commented Apr 6, 2019 •
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fn main() {
    dbg!(5, 10); // error: no rules expected the token `,`
}

It would be nice if the compiler suggested the intended form: dbg!((5, 10)) as this seems like a reasonable mistake. This is specific to a particular macro, though, so I'm not sure how flexible we can be with diagnostics here.
@varkor varkor added A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix`. labels Apr 6, 2019
@Centril
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Centril commented Apr 7, 2019

Or we could just make the macro accept dbg!(5, 10)...

@llogiq llogiq mentioned this issue Apr 9, 2019
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bors added a commit that referenced this issue Apr 20, 2019
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Auto merge of #59826 - llogiq:multi-dbg, r=SimonSapin
33fe113 
allow multiple args to `dbg!(..)`

This closes #59763
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A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix`.
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allow multiple args to dbg!(..) llogiq/rust
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@Centril @varkor