Instead of immediately terminating bootstrap, users are now given
the option to decide whether they want to override the file or leave
it unchanged.
Signed-off-by: onur-ozkan <work@onurozkan.dev>
Extend builtin/auto trait args with error when they have >1 argument
Reuse `extend_with_error` to add error args to any auto trait (or built-in trait like `Copy` that is defined incorrectly) that has additional non-`Self` args.
Fixes#117628
Make `FatalErrorMarker` lower priority than other panics
This makes `FatalErrorMarker` lower priority than other panics in a parallel sections. If any other panics occur, they will be unwound instead of `FatalErrorMarker`. This ensures `rustc` will exit with the correct error code on ICEs.
This fixes https://github.com/rust-lang/rust/issues/116659.
It was stabilized as `-C strip` in November 2021. The unstable option
was kept around as a temporary measure to ease the transition. Two years
is more than enough!
[`mod_module_files`] Don't emit lint for mod.rs in tests
fixes: #11775
current state: indiscriminately emits the lint for mod files in tests.
The following
```
tests/
common/
mod.rs
test.rs
```
is a common pattern for code shared across the tests and is suggested in the rust book. The change adds an additional check to verify that the mod file is not in tests.
changelog: Fix [`mod_module_files`]: false positive for mod files in tests folder
fixes: #11775
current state: indiscriminately emits the lint for mod files in tests.
The following
tests/
common/
mod.rs
test.rs
is a common pattern for code shared across the tests and is suggested in
the rust book. The change adds an additional check to verify that the
mod file is not in tests.
changelog: Fix [`mod_module_files`]: false positive for mod files in
tests folder
Since `x clean` runs with bootstrap, we can speed up
this process by avoiding the cleaning of bootstrap artifacts,
as they are not necessarily needed to be cleaned.
Signed-off-by: onur-ozkan <work@onurozkan.dev>
patterns: reject raw pointers that are not just integers
Matching against `0 as *const i32` is fine, matching against `&42 as *const i32` is not.
This extends the existing check against function pointers and wide pointers: we now uniformly reject all these pointer types during valtree construction, and then later lint because of that. See [here](https://github.com/rust-lang/rust/pull/116930#issuecomment-1784654073) for some more explanation and context.
Also fixes https://github.com/rust-lang/rust/issues/116929.
Cc `@oli-obk` `@lcnr`
[arc_with_non_send_sync] Improve suggested resolution
Fixes: #11714
Improved the lint message for [`arc_with_non_send_sync`] to suggest using `RC` unless user needs an Arc, then suggests wrapping in a mutex, and then suggests implementing `Sync` and `Send`.
---
changelog: [`arc_with_non_send_sync`]: Suggest RC over unsafe impl of Send and Sync
Rollup of 5 pull requests
Successful merges:
- #117263 (handle the case when the change-id isn't found)
- #117282 (Recover from incorrectly ordered/duplicated function keywords)
- #117679 (tests/rustdoc-json: Avoid needless use of `no_core` and `lang_items`)
- #117702 (target: move base and target specifications)
- #117713 (Add test for reexported hidden item with `--document-hidden-items`)
r? `@ghost`
`@rustbot` modify labels: rollup
target: move base and target specifications
Follow-up to #116004.
In anticipation of later PRs where we'll want to add tidy checks to ensure that, for each target, we have a test or a platform support document or something like that, this PR moves target specifications into a directory on their own so that we can just list the files in this directory to get a list of all targets.
- Base specifications are moved to `rustc_target::spec::base`.
- Target specifications are moved to `rustc_target::spec::targets`.
- All the other source files containing types used in the target specs remain in `rustc_target::spec`.
- `rustc_target/src/spec/abi.rs` is moved to `rustc_target/src/spec/abi/mod.rs` (where there was already a `tests.rs`) for uniformity.
r? ``@petrochenkov``
tests/rustdoc-json: Avoid needless use of `no_core` and `lang_items`
See #117487 for motivation.
I've split it into three commits, depending on how much work it was to remove `#![no_core]`. The first is entirely mechanical, the second makes no logical changes but couldn't be done with find+replace, and the third required rewriting assertions no not depend on having `#![no_core]`. All of the interesting changes for review are in the third commit, so I recommend reviewing commit-by-commit.
After this, 3 tests still use `#![no_core]`:
- `./tests/rustdoc-json/primitives/primitive_impls.rs`. Uses impls on primitives, so needs to simulate core
- `./tests/rustdoc-json/primitives/local_primitive.rs`: Uses `rustc_doc_primitive`, so needs to simulate core
- `./tests/rustdoc-json/impls/auto.rs`: Uses auto traits, so needs to simulate core
But after this change, we only rely on the core-rustc boundary in tests that deliberately test those interactions.
r? ``@GuillaumeGomez``
Fixes#117487
handle the case when the change-id isn't found
When we switch back and forth between the old and recent branches, if there was a breaking change in the bootstrap configuration in between, we have to update the change-id in the build configuration with each checkout, which can be exhausting. This change fixes that.
r? saethlin
Compute polonius loan scopes over the region graph
In issue #117146 a loan flows into an SCC containing a placeholder, and whose representative is an existential region. Since we currently compute loan scopes by looking at SCCs and their representatives only, polonius would compute kill points for this loan here whereas NLLs would not of course.
There are a few ways to fix this:
- don't try to be efficient by doing the computation over SCCs, and simply look for free regions and placeholders in the successors of the issuing region.
- change how the SCC representatives are picked, biasing towards placeholders over existential regions. They *shouldn't* matter much, but some downstream code may subtly depend on the current scheme (though no tests fail if we do such a change). This is for unrelated reasons also the way #116891 changes the representative computation. So that PR would also fix issue #117146.
- try to remove placeholders from the main path, and contain them to a pre-pass + a post-pass kind of polonius leak check. If possible, it would fix this issue by turning an outlives constraints to a placeholder into a constraint to 'static. This should also fix the issue, as the representative would be the free region in the SCC. We want to prototype this change to see if it's possible to try to simplify the borrowck main path from having to deal with placeholders and higher-ranked subtyping 🤞.
I'd like to take advantage of fuzzing and a crater run sooner rather than later, so that we grow more confidence that the 2 models are indeed equivalent empirically. Therefore this PR implements option 1 to fix the issue now.
We can take care of efficiency later after validation, and once we implement option 3 (which could also impact option 2 and that associated PR, maybe the lack of placeholders could remove the need to change the representative computation) to traverse SCCs and their representative again.
(Or we maybe will have some kind of naive position-dependent outlives propagation by then and this code would have been changed)
Fixes#117146.
r? `@matthewjasper`
