Better underline for E0057,E0060,E0061 #36222
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @jonathandturner (or someone else) soon. If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes. Please see the contribution instructions for more information. |
| @@ -2449,6 +2449,12 @@ impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> { | |||
| let mut expected_arg_tys = expected_arg_tys; | |||
| let expected_arg_count = fn_inputs.len(); | |||
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| let sp_args = if args.len() > 0 { | |||
| Span { lo: args[0].span.lo, ..args[args.len()-1].span} | |||
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Sadly, we can't safely mix spans like this because some arguments may come from incompatible locations (like from macros).
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I added a comment here about not being able to mix spans directly. Instead, we'll need to use the span information that's already been calculated, or add it when it's safe to add. If the latter is required, you should chat with some people in #rust-internals and see if they have ideas of how best to add it. |
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I cannot find any usable span, I'm asking on irc. |
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This is what I can achieve with a MultiSpan constructed from the args span |
acrrd
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☔ The latest upstream changes (presumably #36303) made this pull request unmergeable. Please resolve the merge conflicts. |
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@nrc - is it okay to merge spans if those spans are on the same line? See the above screenshot. It seems like there are cases we could safely merge. |
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| vec!(sp) | ||
| }; | ||
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| fn parameter_count_error<'tcx>(sess: &Session, spans: Vec<Span>, fn_inputs: &[Ty<'tcx>], |
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Can we use an array/slice for spans instead of a Vec here?
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The field of MultiSpan is a Vec so we have to construct a Vec somewhere.
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I'm chatting with @nrc about what to do here, and we have some ideas. RustConf is currently going on, so it may take us a few more days to get back to this. |
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ok! |
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@acrrd - wow, sorry for the looong delay. I just landed a new method on CodeMap you can use to merge spans called |
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I merge spans until possible, this allow to underline at least some arguments also if the call is on multiple lines. |
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@acrrd - sounds good You may want to also run tidy on your code: And fix the errors it has. Looks like there are some in the current PR. |
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Fixed |
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Great! The one last thing is to create a test for this in src/test/ui. You can see some of the tests there and how to do them (specifically in src/test/ui/spans). After you add a test I think we're good to go. |
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Test added |
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Thanks! @bors: r+ rollup |
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📌 Commit d0c6172 has been approved by |
…llaumeGomez Better underline for E0057,E0060,E0061 Fix rust-lang#35214 Part of rust-lang#35233 r? @jonathandturner
Fix #35214
Part of #35233
r? @jonathandturner