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To test whether the receiver type matches for the impl, we unify the given self
type (in this case `HashSet<{unknown}>`) with the self type of the
impl (`HashSet<?0>`), but if the given self type contains Unknowns, they won't
be unified with the variables in those places. So we got a receiver type that
was different from the expected one, and concluded the impl doesn't match.
The fix is slightly hacky; if after the unification, our variables are still
there, we make them fall back to Unknown. This does make some sense though,
since we don't want to 'leak' the variables.
Fixes #3547.
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Next steps in assoc item completion #3183
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Blacklists are prone to more errors
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- Add test to ensure nested completions don't happen
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Allow trait autocompletions for unimplemented associated fn's, types,
and consts without using explicit keywords before hand (fn, type,
const).
The sequel to #3108.
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3519: Show mod path on hover r=matklad a=SomeoneToIgnore
Closes #1064
Co-authored-by: Kirill Bulatov <[email protected]>
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3513: Completion in macros r=matklad a=flodiebold
I experimented a bit with completion in macros. It's kind of working, but there are a lot of rough edges.
- I'm trying to expand the macro call with the inserted fake token. This requires some hacky additions on the HIR level to be able to do "hypothetical" expansions. There should probably be a nicer API for this, if we want to do it this way. I'm not sure whether it's worth it, because we still can't do a lot if the original macro call didn't expand in nearly the same way. E.g. if we have something like `println!("", x<|>)` the expansions will look the same and everything is fine; but in that case we could maybe have achieved the same result in a simpler way. If we have something like `m!(<|>)` where `m!()` doesn't even expand or expands to something very different, we don't really know what to do anyway.
- Relatedly, there are a lot of cases where this doesn't work because either the original call or the hypothetical call doesn't expand. E.g. if we have `m!(x.<|>)` the original token tree doesn't parse as an expression; if we have `m!(match x { <|> })` the hypothetical token tree doesn't parse. It would be nice if we could have better error recovery in these cases.
Co-authored-by: Florian Diebold <[email protected]>
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Two uses only needed the crate; one was wrong and should use the module from the
scope instead.
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3516: Handle visibility in more cases in completion r=matklad a=flodiebold
This means we don't show private items when completing paths or method calls.
We might want to show private items if we can edit their definition and provide a "make public" assist, but I feel like we'd need better sorting of completion items for that, so they can be not shown or sorted to the bottom by default. Until then, they're usually more of a distraction to me.
Co-authored-by: Florian Diebold <[email protected]>
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See https://github.com/Microsoft/vscode/issues/64023
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Fixes #3306.
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3442: Skip self param when completing methods r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <[email protected]>
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3432: Feature/snippet completions r=matklad a=iTZAvishay
This PR implements #1705 and is based on #3430 to avoid future conflicts.
The completions are placing default values with the names of the parameters, demo:
![call_me_demo](https://user-images.githubusercontent.com/5567310/75828341-461ca400-5db4-11ea-88d8-88e59ac1a197.gif)
Co-authored-by: Avishay Matayev <[email protected]>
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Note that `detail` was replced with `function_signature` to avoid
calling `from` on FunctionSignature twice.
I didn't add new tests because the current ones seem enough.
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