Rollup of 13 pull requests #84477
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Rollup of 13 pull requests #84477
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… stabilized I don't know how to test this. I confirmed locally that this gives the appropriate help with `channel = "beta"`: ``` error[E0554]: `#![feature]` may not be used on the beta release channel --> src/lib.rs:2:1 | 2 | #![feature(min_const_generics)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute | = help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable error[E0554]: `#![feature]` may not be used on the beta release channel --> src/lib.rs:3:1 | 3 | #![feature(min_const_generics, min_specialization)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable error[E0554]: `#![feature]` may not be used on the beta release channel --> src/lib.rs:4:1 | 4 | #![feature(box_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^ ```
Add missing information on what standard-library features are supported by the UEFI targets. All current UEFI targets (which is i686 and x86_64) only support no_std cross-compilations. `std` support has not been worked on and is unlikely to emerge anytime soon, due to the much restricted environment that UEFI provides.
On most From implementations, the docstring is attached to the function. This is also how people have been [recommended] to do it. Screenshots: * [before](https://user-images.githubusercontent.com/1593513/115767662-323c5480-a35e-11eb-9918-98aba83e9183.png) * [after](https://user-images.githubusercontent.com/1593513/115767675-35374500-a35e-11eb-964f-c28eeb6c807a.png) [recommended]: rust-lang#51430 (comment)
This was missed a while ago when support for proc-macro attributes was first added.
…, r=pnkfelix Improve diagnostic for when field is never read Related to (but does not close) rust-lang#81658 This completes the first step of ```@pnkfelix's``` [mentoring instructions](rust-lang#81658 (comment)) but does not actually improve the diagnostics (yet!). The two tests are heavily reduced versions of code from the original bug report. I've confirmed that the reduced `field-used-in-ffi` test [fails on nightly](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=f0862c89ddca028c55c20a5ed05e679a) but [passes on stable](https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=f0862c89ddca028c55c20a5ed05e679a). This confirms that the regression is reproduced correctly. The `drop-only-field` test is a case that ```@pnkfelix``` mentioned in his mentoring instructions. It is not a regression, but will come in handy when we make the diagnostic smarter by looking at whether the field type implements `Drop`. Per the [rustc-dev-guide](https://rustc-dev-guide.rust-lang.org/tests/adding.html), each test includes a comment summarizing what it is about.
On stable, suggest removing `#![feature]` for features that have been stabilized I don't know how to test this (https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Run.20tests.20without.20enabling.20nightly.20features.3F). I confirmed locally that this gives the appropriate help with `channel = "beta"`: ``` error[E0554]: `#![feature]` may not be used on the beta release channel --> src/lib.rs:2:1 | 2 | #![feature(min_const_generics)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute | = help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable error[E0554]: `#![feature]` may not be used on the beta release channel --> src/lib.rs:3:1 | 3 | #![feature(min_const_generics, min_specialization)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable error[E0554]: `#![feature]` may not be used on the beta release channel --> src/lib.rs:4:1 | 4 | #![feature(box_patterns)] | ^^^^^^^^^^^^^^^^^^^^^^^^^ ``` Closes rust-lang#83715.
implement `TrustedRandomAccess` for `Take` iterator adapter `TrustedRandomAccess` requires the iterator length to fit within `usize`. `take(n)` only constrains the upper bound of an iterator. So if the inner is `TrustedRandomAccess` (which already implies a finite length) then so can be `Take`. `````@rustbot````` label T-libs-impl
move core::hint::black_box under its own feature gate The `black_box` function had its own RFC and is tracked separately from the `test` feature at rust-lang#64102. Let's reflect this in the feature gate. To avoid breaking all the benchmarks, libtest's `test::black_box` is a wrapping definition, not a reexport -- this means it is still under the `test` feature gate.
…es, r=varkor
various const parameter defaults improvements
Actually resolve names in const parameter defaults, fixing `struct Foo<const N: usize = { usize::MAX }>`.
---
Split generic parameter ban rib for types and consts, allowing
```rust
#![feature(const_generics_defaults)]
struct Q;
struct Foo<T = Q, const Q: usize = 3>(T);
```
---
Remove the type/const ordering restriction if `const_generics_defaults` is active, even if `const_generics` is not. allowing us to stabilize and test const param defaults separately.
---
Check well formedness of const parameter defaults, eagerly emitting an error for `struct Foo<const N: usize = { 0 - 1 }>`
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Do not forbid const parameters in param defaults, allowing `struct Foo<const N: usize, T = [u8; N]>(T)` and `struct Foo<const N: usize, const M: usize = N>`. Note that this should not change anything which is stabilized, as on stable, type parameters must be in front of const parameters, which means that type parameter defaults are only allowed if no const parameters exist.
We still forbid generic parameters inside of const param types.
r? `````@varkor````` `````@petrochenkov`````
Clean up .gitignore Categorizes entries in the `.gitignore` file. Other changes: - added `desktop.ini` (Windows equivalent of `.DS_Store`) - removed `.hg/` and `.hgignore`
Move `sys_common::poison` to `sync::poison` `sys_common` should not contain publicly exported types, only platform-independent abstractions on top of `sys`, which `sys_common::poison` is not. There is thus no reason for the module to not live under `sync`. Part of rust-lang#84187.
…r=dtolnay Ensure TLS destructors run before thread joins in SGX The excellent test is from `@jethrogb` For context see: rust-lang#83416 (comment)
doc/platform-support: clarify UEFI support Add missing information on what standard-library features are supported by the UEFI targets. All current UEFI targets (which is i686 and x86_64) only support no_std cross-compilations. `std` support has not been worked on and is unlikely to emerge anytime soon, due to the much restricted environment that UEFI provides.
…=jsha Prevent control, shift and alt keys to make search input lose focus Part of rust-lang#84384. r? ``@jsha``
…d-items-toggle, r=yaahc doc: Get rid of "[+] show undocumented items" toggle on numeric From impls On most From implementations, the docstring is attached to the function. This is also how people have been [recommended] to do it. Screenshots: * [before](https://user-images.githubusercontent.com/1593513/115767662-323c5480-a35e-11eb-9918-98aba83e9183.png) * [after](https://user-images.githubusercontent.com/1593513/115767675-35374500-a35e-11eb-964f-c28eeb6c807a.png) [recommended]: rust-lang#51430 (comment)
Fix ICE if original_span(fn_sig) returns a span not in body sourcefile Fixes: rust-lang#84421 r? ``@tmandry`` fyi: ``@wesleywiser`` ``@sdroege`` ``@rajivshah3``
rustdoc: Get rid of `clean::TypeKind` It does exactly the same thing as ItemType.
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@bors r+ rollup=never p=5 |
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📌 Commit 72d5ed0 has been approved by |
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@Dylan-DPC a similar rollup just failed, I would look into why before making new ones: #84473 |
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@jyn514 i'm aware, this one is mainly disjoint though (just a few prs that are common but unrelated) |
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⌛ Testing commit 72d5ed0 with merge 96e7e69dbdd6e25b495f6dcfcf82e6ecfbdbb1fa... |
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The job Click to see the possible cause of the failure (guessed by this bot) |
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💔 Test failed - checks-actions |
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Successful merges:
#![feature]for features that have been stabilized #83722 (On stable, suggest removing#![feature]for features that have been stabilized)TrustedRandomAccessforTakeiterator adapter #83990 (implementTrustedRandomAccessforTakeiterator adapter)sys_common::poisontosync::poison#84387 (Movesys_common::poisontosync::poison)clean::TypeKind#84464 (rustdoc: Get rid ofclean::TypeKind)Failed merges:
r? @ghost
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