Rollup merge of #96034 - Gumichocopengin8:test/btree-set, r=Dylan-DPC
[test] Add test cases of untested functions for BTreeSet
- add [`is_superset()`](https://doc.rust-lang.org/std/collections/struct.BTreeSet.html#method.is_superset) and [`remove()`](https://doc.rust-lang.org/std/collections/struct.BTreeSet.html#method.remove) test cases for BTreeSet since these functions has no test cases.
Rollup merge of #95194 - kckeiks:update-algo-in-find-use-placement, r=pnkfelix
remove find_use_placement
A more robust solution to finding where to place use suggestions was added in #94584.
The algorithm uses the AST to find the span for the suggestion so we pass this span
down to the HIR during lowering and use it instead of calling `find_use_placement`
Added helper function to check the scope of a variable, if it doesn't have a scope call delay_span_bug, which avoids us trying to get a block/scope that doesn't exist.
Had to increase `ROOT_ENTRY_LIMIT` was getting tidy error
Rollup merge of #94461 - jhpratt:2024-edition, r=pnkfelix
Create (unstable) 2024 edition
[On Zulip](https://rust-lang.zulipchat.com/#narrow/stream/213817-t-lang/topic/Deprecating.20macro.20scoping.20shenanigans/near/272860652), there was a small aside regarding creating the 2024 edition now as opposed to later. There was a reasonable amount of support and no stated opposition.
This change creates the 2024 edition in the compiler and creates a prelude for the 2024 edition. There is no current difference between the 2021 and 2024 editions. Cargo and other tools will need to be updated separately, as it's not in the same repository. This change permits the vast majority of work towards the next edition to proceed _now_ instead of waiting until 2024.
For sanity purposes, I've merged the "hello" UI tests into a single file with multiple revisions. Otherwise we'd end up with a file per edition, despite them being essentially identical.
Rollup merge of #94457 - jhpratt:stabilize-derive_default_enum, r=davidtwco
Stabilize `derive_default_enum`
This stabilizes `#![feature(derive_default_enum)]`, as proposed in [RFC 3107](https://github.com/rust-lang/rfcs/pull/3107) and tracked in #87517. In short, it permits you to `#[derive(Default)]` on `enum`s, indicating what the default should be by placing a `#[default]` attribute on the desired variant (which must be a unit variant in the interest of forward compatibility).
Interesting points:
- Stability:
- To make `CStr(ing)` from libcore/liballoc unusable without enabling features I had to make these structures unstable, and reexport them from libstd using stable type aliases instead of `pub use` reexports. (Because stability of `use` items is not checked.)
- Relying on target ABI in libcore is ok:
- https://github.com/rust-lang/rust/pull/94079#issuecomment-1044263371
- `trait CStrExt` (UPDATE: used only in `cfg(bootstrap)` mode, otherwise lang items are used instead)
- https://github.com/rust-lang/rust/pull/94079#issuecomment-1047863450
- `strlen`
- https://github.com/rust-lang/rust/pull/94079#issuecomment-1047863450
Otherwise it's just a code move + some minor hackery usual for liballoc in `cfg(test)` mode.
Auto merge of #95841 - ChrisDenton:pipe-server, r=m-ou-se
Windows: Use a pipe relay for chaining pipes
Fixes #95759
This fixes the issue by chaining pipes synchronously and manually pumping messages between them. It's not ideal but it has the advantage of not costing anything if pipes are not chained ("don't pay for what you don't use") and it also avoids breaking existing code that rely on our end of the pipe being asynchronous (which includes rustc's own testing framework).
Libraries can avoid needing this by using their own pipes to chain commands.
Auto merge of #95315 - compiler-errors:pointee-fix, r=pnkfelix
when checking pointee metadata, canonicalize the `Sized` check
Use `infcx.predicate_must_hold_modulo_regions` with a `Sized` obligation instead of just calling `ty.is_sized`, because the latter does not canonicalize region and type vars (and in the test case I added in this PR, there's a region var in the `ParamEnv`).
Auto merge of #96031 - ehuss:update-cargo, r=ehuss
Update cargo
11 commits in e2e2dddebe66dfc1403a312653557e332445308b..dba5baf4345858c591517b24801902a062c399f8
2022-04-05 17:04:53 +0000 to 2022-04-13 21:58:27 +0000
- Part 6 of RFC2906 - Switch the inheritance source from `workspace` to… (rust-lang/cargo#10564)
- Part 5 of RFC2906 - Add support for inheriting `rust-version` (rust-lang/cargo#10563)
- Add support for rustc --check-cfg well known names and values (rust-lang/cargo#10486)
- Reserve filename `Cargo.toml.orig` in `cargo package` (rust-lang/cargo#10551)
- Retry command invocation with argfile (rust-lang/cargo#10546)
- Add a progress indicator for `cargo clean` (rust-lang/cargo#10236)
- Ensure host units don't depend on Docscrape units, fixes rust-lang/cargo#10545 (rust-lang/cargo#10549)
- Fix docs: Bindeps env vars are passed to build script at runtime (rust-lang/cargo#10550)
- Part 4 of RFC2906 - Add support for inheriting `readme` (rust-lang/cargo#10548)
- Part 3 of RFC2906 - Add support for inheriting `license-path`, and `depednency.path` (rust-lang/cargo#10538)
- Bump to 0.63.0, update changelog (rust-lang/cargo#10544)
Loading the fallback bundle in compilation sessions that won't go on to emit any errors unnecessarily degrades compile time performance, so lazily create the Fluent bundle when it is first required.
Auto merge of #95958 - jhpratt:bump-stdarch, r=Dylan-DPC
Update stdarch
library/stdarch bcbe0106...d215afe9 (7):
- Add the rdm target feature to the sqrdmlsh intrinsic. (rust-lang/stdarch#1285)
- Remove use of `#[rustc_deprecated]`
- Remove feature gates for stabilized features
- Change remaining _undefined_ functions to zero-init
- Use SPDX license format and update packed_simd crate link (rust-lang/stdarch#1297)
- Fix broken links (rust-lang/stdarch#1294)
- Import the asm macro in std_detect (rust-lang/stdarch#1290)
Auto merge of #96015 - Dylan-DPC:rollup-vhdprid, r=Dylan-DPC
Rollup of 6 pull requests
Successful merges:
- #93217 (Improve Rustdoc UI for scraped examples with multiline arguments, fix overflow in line numbers)
- #95885 (Improve error message in case of missing checksum)
- #95962 (Document that DirEntry holds the directory open)
- #95991 (fix: wrong trait import suggestion for T:)
- #96005 (Add missing article to fix "few" to "a few".)
- #96006 (Add a missing article)
Rollup merge of #95991 - PoorlyDefinedBehaviour:fix/issue_95898, r=fee1-dead
fix: wrong trait import suggestion for T:
The suggestion to bound `T` had an extra `:`.
```rust
fn foo<T:>(t: T) {
t.clone();
}
```
```
error[E0599]: no method named `clone` found for type parameter `T` in the current scope
--> src/lib.rs:2:7
|
2 | t.clone();
| ^^^^^ method not found in `T`
|
= help: items from traits can only be used if the type parameter is bounded by the trait
help: the following trait defines an item `clone`, perhaps you need to restrict type parameter `T` with it:
|
1 | fn foo<T: Clone:>(t: T) {
| ~~~~~~~~
```
Rollup merge of #93217 - willcrichton:example-analyzer, r=GuillaumeGomez
Improve Rustdoc UI for scraped examples with multiline arguments, fix overflow in line numbers
This PR improves a few aspects of the scrape examples feature in Rustdoc.
* Only function names and not the full call expression are highlighted.
* For call-sites with multiline arguments, the minimized code viewer will scroll to the top of the call-site rather than the middle if the argument is larger than the viewer size, ensuring that the function name is visible.
* This fixes an issue where the line numbers column had a visible x-scroll bar.
Auto merge of #94255 - b-naber:use-mir-constant-in-thir, r=oli-obk
Use mir constant in thir instead of ty::Const
This is blocked on https://github.com/rust-lang/rust/pull/94059 (does include its changes, the first two commits in this PR correspond to those changes) and https://github.com/rust-lang/rust/pull/93800 being reinstated (which had to be reverted). Mainly opening since `@lcnr` offered to give some feedback and maybe also for a perf-run (if necessary).
This currently contains a lot of duplication since some of the logic of `ty::Const` had to be copied to `mir::ConstantKind`, but with the introduction of valtrees a lot of that functionality will disappear from `ty::Const`.
Only the last commit contains changes that need to be reviewed here. Did leave some `FIXME` comments regarding future implementation decisions and some things that might be incorrectly implemented.
Auto merge of #95999 - Dylan-DPC:rollup-k2r3k11, r=Dylan-DPC
Rollup of 4 pull requests
Successful merges:
- #95441 (Always use system `python3` on MacOS)
- #95954 (Fix broken link in coverage tools docs)
- #95984 (Fix spelling in docs for `can_not_overflow`)
- #95989 (diagnostics: regression test for spurrious "help: store this in the heap")
Rollup merge of #95954 - AnthonyMikh:fix-broken-coverage-docs-screenshot-link, r=Dylan-DPC
Fix broken link in coverage tools docs
During stabilization the link to example screenshot wad not updated, making rendered docs somewhat less useful. Move that screenshot from unstable book into rustc docs and make documentation point to that new place. Also remove `/img` in unstable book since there are no more any files there.
Rollup merge of #95441 - AlecGoncharow:issue-95204-fix, r=Mark-Simulacrum
Always use system `python3` on MacOS
This PR includes 2 changes:
1. Always use the system Python found at `/usr/bin/python3` on MacOS
2. Removes the hard requirement on having `python` in your system path if you didn't specify alternatives. The proposed change will instead attempt to find and use in order: `python` -> `python3` -> `python2`. This change isn't strictly necessary but without any change to this check, the original issue inspiring this change will still exist.
David Wood [Tue, 12 Apr 2022 08:34:40 +0000 (09:34 +0100)]
errors: lazily load fallback fluent bundle
Loading the fallback bundle in compilation sessions that won't go on to
emit any errors unnecessarily degrades compile time performance, so
lazily create the Fluent bundle when it is first required.
Auto merge of #95990 - Dylan-DPC:rollup-r9bh9t7, r=Dylan-DPC
Rollup of 7 pull requests
Successful merges:
- #95316 (Rustdoc: Discriminate required and provided associated constants and types)
- #95405 (Move name resolution logic to a dedicated file)
- #95914 (Implement tuples using recursion)
- #95918 (Delay a bug when we see SelfCtor in ref pattern)
- #95970 (Fix suggestions in case of `T:` bounds)
- #95973 (prevent opaque types from appearing in impl headers)
- #95986 (Autolabel library PRs with T-libs)
Rollup merge of #95986 - yaahc:libs-autolabel, r=Mark-Simulacrum
Autolabel library PRs with T-libs
Continuation of https://github.com/rust-lang/highfive/pull/389
We're trying to improve the libs team review structure and part of that is defaulting PRs to the T-libs team to act as a mini-triage team for all the libs teams / project groups. Highfive doesn't do issue tagging so we will rely on triagebot to pre-triage for t-libs to post-triage :)
Rollup merge of #95973 - oli-obk:tait_ub3, r=compiler-errors
prevent opaque types from appearing in impl headers
cc `@lqd`
opaque types are not distinguishable from their hidden type at the codegen stage. So we could either end up with cases where the hidden type doesn't implement the trait (which will thus ICE) or where the hidden type does implement the trait (so we'd be using its impl instead of the one written for the opaque type). This can even lead to unsound behaviour without unsafe code.
Rollup merge of #95405 - cjgillot:probe, r=petrochenkov
Move name resolution logic to a dedicated file
The code resolution logic from an Ident is scattered between several files.
The first commits creates `rustc_resolve::probe` module to hold the different mutually recursive functions together. Just a move, no code change.
The following commits attempt to make the logic a bit more readable.
The two fields `last_import_segment` and `unusable_binding` are replaced by function parameters.
In order to manage the fallout, `maybe_` variants of the function are added, dedicated to speculative resolution.
Rollup merge of #95316 - fmease:rustdoc-discr-req-prov-assoc-consts-tys, r=notriddle,GuillaumeGomez
Rustdoc: Discriminate required and provided associated constants and types
Currently, rustdoc merely separates required and provided associated _functions_ (i.e. methods). This PR extends this to constants (fixes #94652) and types. This makes the documentation of all three kinds of associated items more alike and consistent.
As an aside, associated types may actually be provided / have a default when users enable the unstable feature `associated_type_defaults`.
Further, I added `ItemKind::TyAssoc{Const,Type}Item`, the “required” variant of `ItemKind::Assoc{Const,Type}Item`, analogous to `ItemKind::TyMethodItem` with `ItemKind::MethodItem`. These new variants don't contain new information really, they are just the result of me getting rid of the `Option<_>` field in `AssocConstItem` and `AssocTypeItem`.
**Goal**: Make associated items more consistent.
Originally I thought modifying `ItemKind` was necessary to achieve the new functionality of this PR but in retrospect, it does not. If you don't like the changes to `ItemKind`, I think I _can_ get rid of them.
This change is the root cause of those tiny changes in a lot of different files.
### Concerns and Open Questions
* **breaking changes** to hyperlinks: Some heading IDs change:
* `associated-const` (sic!) -> `{provided,required}-associated-consts`
* `associated-types` -> `{provided,required}-associated-types`
* **verbosity** of the headings _{Required,Provided} Associated {Constants,Types}_
* For some files, I am not sure if the changes I made are correct. So please take extra care when reviewing `conversions.rs` (conversion to JSON), `cache.rs`/`fold_item`, `stripper.rs`/`fold_item`, `check_doc_test_visibility.rs`/`should_have_doc_example`, `collect_intra_doc_links.rs`/`from_assoc_item`
* JSON output: I still map `AssocTypeItem`s to `Typedef` etc. (FIXME)
Auto merge of #95987 - m-ou-se:rollup-sdevd9b, r=m-ou-se
Rollup of 4 pull requests
Successful merges:
- #95783 (rustdoc doctest: include signal number in exit status)
- #95794 (`parse_tt`: a few more tweaks)
- #95963 ([bootstrap] Grab the right FileCheck binary for dist when cross-compiling.)
- #95975 (Don't test -Cdefault-linker-libraries=yes when cross compiling.)
Mara Bos [Tue, 12 Apr 2022 17:58:17 +0000 (19:58 +0200)]
Rollup merge of #95963 - luqmana:llvm-dist-cross-filecheck, r=Mark-Simulacrum
[bootstrap] Grab the right FileCheck binary for dist when cross-compiling.
Fixes #95862
We were using the target dir for all the other LLVM tools (`llvm-config`, `llvm-ar`, etc) but the build target dir for `FileCheck`. This meant for targets which are cross-compiled, we were copying the wrong binary.
Auto merge of #95867 - cjgillot:fixed-size, r=oli-obk
Skip `Lazy` for some metadata tables
Some metadata tables encode their entries indirectly, through the Lazy construct. This is useful when dealing with variable length encoding, but incurs the extra cost of one u32.
Meanwhile, some fields can be encoded in a single u8, or can use a short fixed-length encoding. This PR proposes to do so, and avoid the overhead.
Rollup merge of #95947 - cuviper:default-box, r=dtolnay
`impl const Default for Box<[T]>` and `Box<str>`
The unstable `const_default_impls` (#87864) already include empty `Vec<T>` and `String`. Now we extend that concept to `Box<[T]>` and `Box<str>` as well.
This obviates a hack in `rustc_ast`'s `P::<[T]>::new`.
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