Rollup of 13 pull requests #77039
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Rollup of 13 pull requests #77039
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Make the following methods unstable const under the `const_pin` feature: - `new` - `new_unchecked` - `into_inner` - `into_inner_unchecked` - `get_ref` - `into_ref` Also adds tests for these methods in a const context. Tracking issue: rust-lang#76654
`const_mut_refs` doesn't actually work in a `const` or `static`
Make the following methods unstable const under the `const_pin` feature: - `into_ref` - `get_mut` - `get_unchecked_mut`
…d reduce nesting (clippy::single_match)
Co-authored-by: David Tolnay <dtolnay@gmail.com>
See https://internals.rust-lang.org/t/need-for-controlling-drop-order-of-fields/12914/21 for the discussion. TL;DR: ManuallyDrop is unsafe and footguny, but you can just ask the compiler to do all the work for you by re-ordering declarations.
The case shouldn't be necessary and implicitly truncating BytePos is not desirable.
If the right-hand iterator has exactly one more element than the left-hand iterator, then both iterators will be fully consumed, but the extra element will never be compared.
Reduce duplicate in liballoc reserve error handling Not sure if it affects compilation time.
Don't use `zip` to compare iterators during pretty-print hack If the right-hand iterator has exactly one more element than the left-hand iterator, then both iterators will be fully consumed, but the extra element will never be compared. Split out from rust-lang#76130
Don't recommend ManuallyDrop to customize drop order See https://internals.rust-lang.org/t/need-for-controlling-drop-order-of-fields/12914/21 for the discussion. TL;DR: ManuallyDrop is unsafe and footguny, but you can just ask the compiler to do all the work for you by re-ordering declarations. Specifically, the original example from the docs is much better written as ```rust struct Peach; struct Banana; struct Melon; struct FruitBox { melon: Melon, // XXX: mind the relative drop order of the fields below peach: Peach, banana: Banana, } ```
…73836, r=dtolnay Implementation of Write for some immutable ref structs Fixes rust-lang#73836
…6, r=jyn514 Add explanation for E0756 r? @pickfire
do not ICE on bound variables, return `TooGeneric` instead fixes rust-lang#73260, fixes rust-lang#74634, fixes rust-lang#76595 r? @nikomatsakis
Make some methods of `Pin` unstable const Make the following methods unstable const under the `const_pin` feature: - `new` - `new_unchecked` - `into_inner` - `into_inner_unchecked` - `get_ref` - `into_ref` - `get_mut` - `get_unchecked_mut` Of these, `into_inner` and `into_inner_unchecked` require the unstable `const_precise_live_drops`. Also adds tests for these methods in a const context. Tracking issue: rust-lang#76654 r? @ecstatic-morse
Only get ImplKind::Impl once With this, the code panics in one place instead of two.
…d-api, r=oli-obk Use const-checking to forbid use of unstable features in const-stable functions First step towards rust-lang#76618. Currently this code isn't ever hit because `qualify_min_const_fn` runs first and catches pretty much everything. One exception is `const_precise_live_drops`, which does not use the newly added code since it runs as part of a separate pass. Also contains some unrelated refactoring, which is split into separate commits. r? @oli-obk
… r=Dylan-DPC use if let instead of single match arm expressions use if let instead of single match arm expressions to compact code and reduce nesting (clippy::single_match)
extend `Ty` and `TyCtxt` lints to self types blocked on rust-lang#76891 r? @ecstatic-morse cc @Aaron1011
Reduce boilerplate for BytePos and CharPos Reduces boilerplate code for BytePos and CharPos by using a macro to implement shared traits.
…vidtwco lint missing docs for extern items fixes rust-lang#76991
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@bors r+ p=100 |
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📌 Commit 0863f9a has been approved by |
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☀️ Test successful - checks-actions, checks-azure |
This was referenced Sep 22, 2020
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Successful merges:
zipto compare iterators during pretty-print hack #76131 (Don't usezipto compare iterators during pretty-print hack)TooGenericinstead #76581 (do not ICE on bound variables, returnTooGenericinstead)Pinunstable const #76655 (Make some methods ofPinunstable const)TyandTyCtxtlints to self types #76914 (extendTyandTyCtxtlints to self types)Failed merges:
r? @ghost