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Implement Diagnostic for Report #307

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gavrilikhin-d opened this issue Oct 21, 2023 · 1 comment
Open

Implement Diagnostic for Report #307

gavrilikhin-d opened this issue Oct 21, 2023 · 1 comment

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@gavrilikhin-d
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gavrilikhin-d commented Oct 21, 2023 •
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It looks like Report can be casted to diagnostic reference, since it implements AsRef<dyn Diagnostic + Send + Sync>.
But I can't find an implementation of Diagnostic for Report itself for some reason.

It could help you remove special case impl<C: SourceCode> Diagnostic for WithSourceCode<Report, C>
@TheLostLambda
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I've accidentally asked the same in #366 ... It looks fundamentally like the ever-annoying coherence issue with impl From<T> for T in the standard library...

I might be possible to remove the From impl for Report, meaning you also lose .into(), but then there are a lot more internal challenges I can't particularly figure out... Tragically, this seems like a very very hard change to make...

Out of curiosity, why are you wanting Report to impl Diagnostic? Is it also for .report_err, or for something else?

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@TheLostLambda @gavrilikhin-d