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pnkfelix:issue-57464-avoid-ice-when-region-sneaks-into-impl-trait, r=pnkfelix
avoid ICE when region sneaks into impl trait
Addresses non-NLL instances of #57464
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bootstrap: deny(rust_2018_idioms)
As part of the Rust 2018 transition, apply `#![deny(rust_2018_idioms)]` to `bootstrap`.
r? @Centril
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Test that binop subtyping in rustc_typeck fixes #27949
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r=oli-obk
librustc: deny(elided_lifetimes_in_paths)
As part of the Rust 2018 transition, remove `#![allow(elided_lifetimes_in_paths)]` from `librustc`.
r? @oli-obk
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Centril:deny-elided_lifetimes_in_paths-librustc_typeck, r=oli-obk
librustc_typeck: deny(elided_lifetimes_in_paths)
As part of the Rust 2018 transition, remove `#![allow(elided_lifetimes_in_paths)]` from `librustc_typeck`.
r? @oli-obk
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Centril:deny-elided_lifetimes_in_paths-librustc_codegen_ssa, r=oli-obk
librustc_codegen_ssa: #![deny(elided_lifetimes_in_paths)]
As part of the Rust 2018 transition, remove `#![allow(elided_lifetimes_in_paths)]` from `librustc_codegen_ssa`.
r? @oli-obk
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librustc_codegen_llvm: #![deny(elided_lifetimes_in_paths)]
As part of the Rust 2018 transition, remove `#![allow(elided_lifetimes_in_paths)]` from `librustc_codegen_llvm`.
r? @oli-obk
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Apply docs convention: Replace # Unsafety with # Safety in docs
As used in RFC 1574: https://github.com/rust-lang/rfcs/blob/master/text/1574-more-api-documentation-conventions.md#using-markdown
"Safety" is used many times more than "Unsafety" is within existing docs.
@bors rollup
r? @RalfJung
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r=oli-obk
Reduce a Code Repetition like `(n << amt) >> amt`
Fixes a part of [#49937](https://github.com/rust-lang/rust/issues/49937).
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Reduce Miri Code Repetition like `(n << amt) >> amt`
This Pull Request fixes a part of [#49937](https://github.com/rust-lang/rust/issues/49937).
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Deny the `overflowing_literals` lint for all editions
The `overflowing_literals` was made deny by default for the 2018 edition by #54507, however I'm not aware of any reason it can't be made deny by default for the 2015 edition as well.
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Use normal mutable borrows in matches
`ref mut` borrows are currently two-phase with NLL enabled. This changes them to be proper mutable borrows. To accommodate this, first the position of fake borrows is changed:
```text
[ 1. Pre-match ]
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[ (old create fake borrows) ]
[ 2. Discriminant testing -- check discriminants ] <-+
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| (once a specific arm is chosen) |
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[ (old read fake borrows) ] |
[ 3. Create "guard bindings" for arm ] |
[ (create fake borrows) ] |
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[ 4. Execute guard code ] |
[ (read fake borrows) ] --(guard is false)-----------+
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| (guard results in true)
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[ 5. Create real bindings and execute arm ]
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[ Exit match ]
```
The following additional changes are made to accommodate `ref mut` bindings:
* We no longer create fake `Shared` borrows. These borrows are no longer needed for soundness, just to avoid some arguably strange cases.
* `Shallow` borrows no longer conflict with existing borrows, avoiding conflicting access between the guard borrow access and the `ref mut` borrow.
There is some further clean up done in this PR:
* Avoid the "later used here" note for Shallow borrows (since it's not relevant with the message provided)
* Make any use of a two-phase borrow activate it.
* Simplify the cleanup_post_borrowck passes into a single pass.
cc #56254
r? @nikomatsakis
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Remove some unnecessary 'extern crate'
cc #58099
r? @Centril
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Use ? in some macros
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replace deprecated rustfmt_skip with rustfmt::skip
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Relax some Ord bounds on BinaryHeap<T>
Notably, iterators don't require any trait bounds to be iterated.
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Relax some Hash bounds on HashMap<K, V, S> and HashSet<T, S>
Notably, hash iterators don't require any trait bounds to be iterated.
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update miri
cc #57609
r? @RalfJung
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Fix style issues and update diagnostic messages
Update src/librustc_passes/diagnostics.rs
Co-Authored-By: doctorn <me@nathancorbyn.com>
Deny nested `async fn` in Rust 2015 edition
Deny nested `async fn` in Rust 2015 edition
Deny nested `async fn` in Rust 2015 edition
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Implement unstable ffi_return_twice attribute
This PR implements [RFC2633](https://github.com/rust-lang/rfcs/pull/2633)
r? @eddyb
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Rollup of 6 pull requests
Successful merges:
- #57364 (Improve parsing diagnostic for negative supertrait bounds)
- #58183 (Clarify guarantees for `Box` allocation)
- #58442 (Simplify the unix `Weak` functionality)
- #58454 (Refactor Windows stdio and remove stdin double buffering )
- #58511 (Const to op simplification)
- #58642 (rustdoc: support methods on primitives in intra-doc links)
Failed merges:
r? @ghost
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