Commit Graph

2821 Commits

Author SHA1 Message Date
oli
aaee3f27ee Don't mix feature gates and hard errors, decide on one per op and stick with it 2021-01-01 16:59:12 +00:00
oli
3ed14033f7 Reinstate the error-code error over the feature gate error 2021-01-01 16:59:12 +00:00
oli
4158e58d79 Enhance some comments 2021-01-01 16:59:12 +00:00
oli
354e510f7d Fix cell checks in const fn 2021-01-01 16:59:12 +00:00
oli
3a44a20ed1 The proper name for the rule is "enclosing scope" 2021-01-01 16:59:12 +00:00
oli
0b841846ba Allow references to interior mutable data behind a feature gate 2021-01-01 16:59:12 +00:00
Rémy Rakic
942b7ce2c1 make const_generics_defaults use the unstable syntax mechanism
This is important to not accidentally stabilize the parsing of the syntax while it still is experimental and not formally accepted
2021-01-01 11:01:01 +01:00
Rémy Rakic
1fc3c4c16d adjust const generics defaults FIXMEs to the new feature gate 2021-01-01 11:01:01 +01:00
Rémy Rakic
ea8fa36bb4 mark const_generics_defaults as an incomplete feature 2021-01-01 10:55:16 +01:00
Rémy Rakic
5f4bb468c1 fix typo in feature gates file 2021-01-01 10:55:16 +01:00
Julian Knodt
61f33bfd29 first pass at default values for const generics
- Adds optional default values to const generic parameters in the AST
  and HIR
- Parses these optional default values
- Adds a `const_generics_defaults` feature gate
2021-01-01 10:55:10 +01:00
bors
f8ab56bf32 Auto merge of #79576 - m-ou-se:2021, r=Mark-Simulacrum
Add edition 2021.

🎆 Happy new ~~year~~ Rust. 🍾

This adds --edition=2021, and updates suggestions about 2018 to say "2018 *or later*".

Related Cargo PR: https://github.com/rust-lang/cargo/pull/8922

---

Edit: This adds the new edition as *unstable*. Without `-Z unstable-options`, `--edition=2021` results in:
```
$ rustc --edition=2021
error: edition 2021 is unstable and only available with -Z unstable-options.
```
2021-01-01 03:41:31 +00:00
Dylan DPC
96c11f98d7
Rollup merge of #80551 - lcnr:const-arg-wildcard, r=varkor
support pattern as const parents in type_of

nice to know that there's still stuff about rust i didn't know about 😆

fixes #80531

r? `@varkor`
2020-12-31 22:21:00 +01:00
Dylan DPC
33806d2599
Rollup merge of #80548 - JohnTitor:wfcheck-foreign-fn-ice, r=davidtwco
FIx ICE on wf check for foreign fns

Fixes #80468

r? `@davidtwco` `@lcnr`
2020-12-31 22:20:59 +01:00
Dylan DPC
1f431f9066
Rollup merge of #80519 - max-heller:issue-80512-fix, r=varkor
Take type defaults into account in suggestions to reorder generic parameters

Fixes #80512
2020-12-31 22:20:53 +01:00
Dylan DPC
55cfcd596f
Rollup merge of #80323 - camelid:codegen-base-docs, r=nagisa
Update and improve `rustc_codegen_{llvm,ssa}` docs

Fixes #75342.

These docs were very out of date and misleading. They even said that
they codegen'd the *AST*!

For some reason, the `rustc_codegen_ssa::base` docs were exactly
identical to the `rustc_codegen_llvm::base` docs. They didn't really
make sense, because they had LLVM-specific information even though
`rustc_codegen_ssa` is supposed to be somewhat generic. So I removed
them as they were misleading.

r? ``@pnkfelix`` maybe?
2020-12-31 22:20:43 +01:00
Mara Bos
3cbdbe8dcd Enable Pat2021 in edition 2021. 2020-12-31 19:39:44 +01:00
Mara Bos
3d9d0e9d3e Require -Z unstable-options for unstable editions. 2020-12-31 19:06:09 +01:00
Mara Bos
c574ded57d Consistently call editions "Rust 20xx" in messages. 2020-12-31 19:06:09 +01:00
Mara Bos
f16ef7d7ce Add edition 2021. 2020-12-31 19:06:09 +01:00
bors
44e3daf5ee Auto merge of #80459 - mark-i-m:or-pat-reg, r=petrochenkov
Implement edition-based macro :pat feature

This PR does two things:
1. Fixes the perf regression from https://github.com/rust-lang/rust/pull/80100#issuecomment-750893149
2. Implements `:pat2018` and `:pat2021` matchers, as described by `@joshtriplett`  in https://github.com/rust-lang/rust/issues/54883#issuecomment-745509090 behind the feature gate `edition_macro_pat`.

r? `@petrochenkov`

cc `@Mark-Simulacrum`
2020-12-31 14:52:26 +00:00
Bastian Kauschke
2aef46b17b support pattern as const parents in type_of 2020-12-31 14:10:49 +01:00
bors
a6bd5246da Auto merge of #80267 - 0urobor0s:ouro/61592, r=jyn514
Rustdoc render public underscore_imports as Re-exports

Fixes #61592
2020-12-31 09:07:52 +00:00
bors
cb4553bdae Rustdoc render public underscore_imports as Re-exports
Fixes #61592
2020-12-31 09:07:51 +00:00
bors
923e3d2400 Auto merge of #80500 - jyn514:track-caller, r=nagisa
Add `#[track_caller]` to `bug!` and `register_renamed`

Before:

```
thread 'rustc' panicked at 'compiler/rustc_lint/src/context.rs:267:18: invalid lint renaming of broken_intra_doc_links to rustdoc::broken_intra_doc_links', compiler/rustc_middle/src/util/bug.rs:34:26
```

After:

```
thread 'rustc' panicked at 'src/librustdoc/core.rs:455:24: invalid lint renaming of broken_intra_doc_links to rustdoc::broken_intra_doc_links', compiler/rustc_middle/src/util/bug.rs:35:26
```

The reason I added it to `register_renamed` too is that any panic in
that function will be the caller's fault.
2020-12-31 03:17:50 +00:00
Yuki Okushi
7008911080 FIx ICE on wf check for foreign fns 2020-12-31 11:25:53 +09:00
bors
9775ffef2a Auto merge of #80530 - m-ou-se:rollup-zit69ko, r=m-ou-se
Rollup of 9 pull requests

Successful merges:

 - #78934 (refactor: removing library/alloc/src/vec/mod.rs ignore-tidy-filelength)
 - #79479 (Add `Iterator::intersperse`)
 - #80128 (Edit rustc_ast::ast::FieldPat docs)
 - #80424 (Don't give an error when creating a file for the first time)
 - #80458 (Some Promotion Refactoring)
 - #80488 (Do not create dangling &T in Weak<T>::drop)
 - #80491 (Miri: make size/align_of_val work for dangling raw ptrs)
 - #80495 (Rename kw::Invalid -> kw::Empty)
 - #80513 (Add regression test for #80062)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2020-12-30 21:25:15 +00:00
max-heller
947b279bc6 Take type defaults into account in suggestions to reorder generic parameters 2020-12-30 16:00:25 -05:00
Mara Bos
9e8edc8c22
Rollup merge of #80495 - jyn514:rename-empty, r=petrochenkov
Rename kw::Invalid -> kw::Empty

See https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Is.20there.20a.20symbol.20for.20the.20empty.20string.3F/near/220054471
for context.

r? `@petrochenkov`
2020-12-30 20:56:58 +00:00
Mara Bos
067f1b7030
Rollup merge of #80491 - RalfJung:dangling-of-val, r=oli-obk
Miri: make size/align_of_val work for dangling raw ptrs

This is needed for https://github.com/rust-lang/rust/issues/80365#issuecomment-752128105.

r? `@oli-obk`
2020-12-30 20:56:56 +00:00
Mara Bos
46111c1901
Rollup merge of #80458 - RalfJung:promotion-refactor, r=oli-obk
Some Promotion Refactoring

Clean up promotion a bit:
* factor out some common code
* more exhaustive matches

This *should* not break anything... the only potentially-breaking change is that `BorrowKind::Shallow | BorrowKind::Unique` are now rejected for internal references.

r? ``@oli-obk``
2020-12-30 20:56:52 +00:00
Mara Bos
3d7cdf667e
Rollup merge of #80128 - pierwill:pierwill-docs-fieldpat, r=jyn514
Edit rustc_ast::ast::FieldPat docs

Punctuation fixes.
2020-12-30 20:56:49 +00:00
bors
e226704685 Auto merge of #80511 - Mark-Simulacrum:bump-stage0, r=pietroalbini
Bump bootstrap compiler to 1.50 beta

r? `@pietroalbini`
2020-12-30 18:32:31 +00:00
mark
40bf3c0f09 Implement edition-based macro pat feature 2020-12-30 09:57:49 -06:00
bors
507bff92fa Auto merge of #80510 - JohnTitor:rollup-gow7y0l, r=JohnTitor
Rollup of 7 pull requests

Successful merges:

 - #80185 (Fix ICE when pointing at multi bytes character)
 - #80260 (slightly more typed interface to panic implementation)
 - #80311 (Improvements to NatVis support)
 - #80337 (Use `desc` as a doc-comment for queries if there are no doc comments)
 - #80381 (Revert "Cleanup markdown span handling")
 - #80492 (remove empty wraps, don't return Results from from infallible functions)
 - #80509 (where possible, pass slices instead of &Vec or &String (clippy::ptr_arg))

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2020-12-30 15:30:56 +00:00
Joshua Nelson
edeac1778c Rename kw::Invalid -> kw::Empty
See https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/Is.20there.20a.20symbol.20for.20the.20empty.20string.3F/near/220054471
for context.
2020-12-30 09:50:02 -05:00
Mark Rousskov
fe031180d0 Bump bootstrap compiler to 1.50 beta 2020-12-30 09:27:19 -05:00
Yuki Okushi
41fa0dba27
Rollup merge of #80509 - matthiaskrgr:ptr_arg, r=varkor
where possible, pass slices instead of &Vec or &String (clippy::ptr_arg)
2020-12-30 22:49:26 +09:00
Yuki Okushi
07083739fb
Rollup merge of #80492 - matthiaskrgr:tasty_wraps, r=varkor
remove empty wraps, don't return Results from from infallible functions

This makes code easier to understand because it is more obvious when a function actually can't fail (return Err or None)

Make functions that only ever return Some(x), return x directly
Remove return type from functions that return Option<(), Err> but would only ever return Ok(()).

Found with `clippy::unnecessary_wraps`
2020-12-30 22:49:24 +09:00
Yuki Okushi
18ac1ecac9
Rollup merge of #80337 - jyn514:add-query-desc, r=varkor
Use `desc` as a doc-comment for queries if there are no doc comments

This at least gives *some* idea of what the query does even if it's not very readable. Some examples:

![image](https://user-images.githubusercontent.com/23638587/103021399-13e15c00-4518-11eb-8121-940774ae2fd1.png)
![image](https://user-images.githubusercontent.com/23638587/103021448-222f7800-4518-11eb-8ee6-cc10795fdc22.png)
![image](https://user-images.githubusercontent.com/23638587/103021434-1d6ac400-4518-11eb-885b-59d00c57bc70.png)

I want to turn `{}` into either `_` or the stringified expr, but [I'm not sure how to do that](https://rust-lang.zulipchat.com/#narrow/stream/122651-general/topic/Evaluate.20format.20string.20in.20proc-macro). In the meantime, this is better than having no docs at all.
2020-12-30 22:49:21 +09:00
Yuki Okushi
4ae99cc843 Fix ICE when pointing at multi bytes character 2020-12-30 22:33:13 +09:00
bors
bbcaed03bf Auto merge of #79684 - usbalbin:const_copy, r=oli-obk
Make copy[_nonoverlapping] const

Constifies
* `intrinsics::copy` and `intrinsics::copy_nonoverlapping`
* `ptr::read` and `ptr::read_unaligned`
  * `*const T::read` and `*const T::read_unaligned`
  * `*mut T::read` and `*mut T::read_unaligned`
* `MaybeUninit::assume_init_read`
2020-12-30 12:43:02 +00:00
Matthias Krüger
e5ead5fc58 remove unused return types such as empty Results or Options that would always be Some(..)
remove unused return type of dropck::check_drop_obligations()
don't wrap return type in Option in get_macro_by_def_id() since we would always return Some(..)
remove redundant return type of back::write::optimize()
don't Option-wrap return type of compute_type_parameters() since we always return Some(..)
don't return empty Result in assemble_generator_candidates()
don't return empty Result in assemble_closure_candidates()
don't return empty result in assemble_fn_pointer_candidates()
don't return empty result in assemble_candidates_from_impls()
don't return empty result in assemble_candidates_from_auto_impls()
don't return emtpy result in assemble_candidates_for_trait_alias()
don't return empty result in assemble_builtin_bound_candidates()
don't return empty results in assemble_extension_candidates_for_traits_in_scope() and assemble_extension_candidates_for_trait()
remove redundant wrapping of return type of StripItem::strip() since it always returns Some(..)
remove unused return type of assemble_extension_candidates_for_all_traits()
2020-12-30 13:15:40 +01:00
Matthias Krüger
bdc9291ed9 where possible, pass slices instead of &Vec or &String (clippy::ptr_arg) 2020-12-30 13:11:52 +01:00
bors
d107a87d34 Auto merge of #80503 - JohnTitor:rollup-b26vglu, r=JohnTitor
Rollup of 13 pull requests

Successful merges:

 - #79812 (Lint on redundant trailing semicolon after item)
 - #80348 (remove redundant clones (clippy::redundant_clone))
 - #80358 (Edit rustc_span documentation)
 - #80457 (Add missing commas to `rustc_ast_pretty::pp` docs)
 - #80461 (Add llvm-libunwind change to bootstrap CHANGELOG)
 - #80464 (Use Option::map_or instead of open coding it)
 - #80465 (Fix typo in ffi-pure.md)
 - #80467 (More uses of the matches! macro)
 - #80469 (Fix small typo in time comment)
 - #80472 (Use sans-serif font for the "all items" page links)
 - #80477 (Make forget intrinsic safe)
 - #80482 (don't clone copy types)
 - #80487 (don't redundantly repeat field names)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2020-12-30 09:51:42 +00:00
Yuki Okushi
3812909919
Rollup merge of #80487 - matthiaskrgr:field_names, r=jyn514
don't redundantly repeat field names

r? `@Dylan-DPC`
2020-12-30 18:15:29 +09:00
Yuki Okushi
039b62e888
Rollup merge of #80482 - matthiaskrgr:cl0ne_on_copy, r=jyn514
don't clone copy types

r? `@Dylan-DPC`
2020-12-30 18:15:27 +09:00
Yuki Okushi
9576ee97d1
Rollup merge of #80477 - tmiasko:safe-forget, r=oli-obk
Make forget intrinsic safe
2020-12-30 18:15:25 +09:00
Yuki Okushi
231727d6e7
Rollup merge of #80467 - LingMan:more_matches, r=oli-obk
More uses of the matches! macro

`@rustbot` modify labels +C-cleanup +T-compiler
2020-12-30 18:15:20 +09:00
Yuki Okushi
30ddc91d41
Rollup merge of #80464 - LingMan:map_or, r=oli-obk
Use Option::map_or instead of open coding it

``@rustbot`` modify labels +C-cleanup +T-compiler
2020-12-30 18:15:16 +09:00