Rollup of 7 pull requests #67284
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Rollup of 7 pull requests #67284
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This is logically equivalent to the previous code.
Actually empty matches are still handled by a different code path
This uses the exact same code path that would be used for
`match x { _ if false => {} }`, since in both cases the resulting matrix
is empty. Since we think the behaviour in that case is ok, then we can
remove the special case and use the default code path.
When the feature is on, the special casing is not needed. That way when we stabilize the feature this `if` can just be removed.
…t().assume_init()
Fix a minor typo
… r=varkor,Centril,estebank Improve diagnostics and code for exhaustiveness of empty matches There was a completely separate check and diagnostics for the case of an empty match. This led to slightly different error messages and duplicated code. This improves code reuse and generally clarifies what happens for empty matches. This also clarifies the action of the `exhaustive_patterns` feature, and ensures that this feature doesn't change diagnostics in places it doesn't need to.
…drAus VecDeque: drop remaining items on destructor panic Closes rust-lang#67232
dont ICE in case of invalid drop fn Fixes rust-lang/miri#1112 r? @oli-obk
Reduce allocs for validation errors This probably doesn't really matter, but I just felt like I had to do this... r? @oli-obk
be explicit that mem::uninitialized is the same as MaybeUninit::uninit().assume_init() Cc @Centril @nikomatsakis
`coerce_inner`: use initial `expected_ty` Fixes rust-lang#67273. Follow-up to rust-lang#59439. r? @oli-obk
docs: std::convert::From: Fix typo Fix a minor typo
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@bors r+ p=7 rollup=never |
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📌 Commit d0cc289 has been approved by |
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Rollup of 7 pull requests Successful merges: - #67026 (Improve diagnostics and code for exhaustiveness of empty matches) - #67235 (VecDeque: drop remaining items on destructor panic) - #67254 (dont ICE in case of invalid drop fn) - #67256 (Reduce allocs for validation errors) - #67274 (be explicit that mem::uninitialized is the same as MaybeUninit::uninit().assume_init()) - #67278 (`coerce_inner`: use initial `expected_ty`) - #67280 (docs: std::convert::From: Fix typo) Failed merges: r? @ghost
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☀️ Test successful - checks-azure |
This was referenced Dec 13, 2019
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Successful merges:
coerce_inner: use initialexpected_ty#67278 (coerce_inner: use initialexpected_ty)Failed merges:
r? @ghost