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3938: fix missing match arm false positive r=flodiebold a=JoshMcguigan
This fixes #3932 by skipping the missing match arm diagnostic in the case any of the match arms don't type check properly against the match expression.
I think this is the appropriate behavior for this diagnostic, since `is_useful` relies on all match arms being well formed, and the case of a malformed match arm should probably be handled by a different diagnostic.
Co-authored-by: Josh Mcguigan <[email protected]>
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ellipsis behavior
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The grammar now looks like this
[name_ref :] pat
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3951: Simplify records grammar r=matklad a=matklad
bors r+
🤖
Co-authored-by: Aleksey Kladov <[email protected]>
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This speeds up inference in analysis-stats by ~30% (even more with the recursive
solver).
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3905: add ellipsis field to hir pat record r=matklad a=JoshMcguigan
This PR corrects a `fixme`, adding an `ellipsis` field to the hir `Pat::Record` type. It will also be unlock some useful follow on work for #3894.
Additionally it adds a diagnostic for missing fields in record patterns.
~~Marking as a draft because I don't have any tests, and a small amount of manual testing on my branch from #3894 suggests it might *not* be working. Any thoughts on how I can best test this, or else pointers on where I might be going wrong?~~
Co-authored-by: Josh Mcguigan <[email protected]>
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Chalk now panics if we don't implement these methods and run with CHALK_DEBUG,
so I thought I'd try to implement them 'properly'. Sadly, it seems impossible to
do without transmuting lifetimes somewhere. The problem is that we need a `&dyn
HirDatabase` to get names etc., which we can't just put into TLS. I thought I
could just use `scoped-tls`, but that doesn't support references to unsized
types. So I put the `&dyn` into another struct and put the reference to *that*
into the TLS, but I have to transmute the lifetime to 'static for that to work.
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3918: Add support for feature attributes in struct literal r=matklad a=bnjjj
As promised here is the next PR to solve 2 different scenarios with feature flag on struct literal.
close #3870
Co-authored-by: Benjamin Coenen <[email protected]>
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Signed-off-by: Benjamin Coenen <[email protected]>
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Signed-off-by: Benjamin Coenen <[email protected]>
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I think this makes is more clear which things are : AstNode and which
are : AstToken
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Signed-off-by: Benjamin Coenen <[email protected]>
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Signed-off-by: Benjamin Coenen <[email protected]>
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Fixes #3865. Basically I forgot to shift 'back' when we got `dyn Trait`s back
from Chalk, so after going through Chalk a few times, the panic happened.
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Signed-off-by: Benjamin Coenen <[email protected]>
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3744: Upgrade Chalk r=matklad a=flodiebold
Co-authored-by: Florian Diebold <[email protected]>
Co-authored-by: Florian Diebold <[email protected]>
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The big change here is counting binders, not
variables (https://github.com/rust-lang/chalk/pull/360). We have to adapt to the
same scheme for our `Ty::Bound`. It's mostly fine though, even makes some things
more clear.
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We treat macro calls as expressions (there's appropriate Into impl),
which causes problem if there's expresison and non-expression macro in
the same node (like in the match arm).
We fix this problem by nesting macor patterns into another node (the
same way we nest path into PathExpr or PathPat). Ideally, we probably
should add a similar nesting for macro expressions, but that needs
some careful thinking about macros in blocks: `{ am_i_expression!() }`.
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