Rollup of 6 pull requests
Successful merges:
- #71989 (Use a single enum for the kind of a const context)
- #71993 (Remove old `util/liveness.rs` module)
- #71999 (Add myself to mailmap.)
- #72001 (Adjust cfg(version) to lang team decision)
- #72007 (Fix some tests failing in `--pass check` mode)
- #72008 (Add const-generics test)
Failed merges:
r? @ghost
Remove old `util/liveness.rs` module
The liveness dataflow analysis now lives in the `dataflow` module, so this one is no longer necessary. I've copied the relevant bits of the module docs for `util::liveness` to `MaybeLiveLocals`. The example in the docs is now a `mir-dataflow` test: a08c47310c/src/test/ui/mir-dataflow/liveness-ptr.rs (L6-L26)
The borrow-checker used the same notion of "defs" and "uses", so I've moved it into a submodule. I would have moved it to `util/def_use.rs`, since it seems generally useful, but there's already a slightly [different version](https://github.com/rust-lang/rust/blob/master/src/librustc_mir/util/def_use.rs) of the same abstraction needed for copy propagation.
Use a single enum for the kind of a const context
This adds a `ConstContext` enum to the `rustc_hir` crate and method that can be called via `tcx.hir()` to get the `ConstContext` for a given body owner. This arose from discussion in #71824.
r? @oli-obk
Extend example for the `unneeded_field_pattern` lint
Current example is incorrect (or pseudo-code) because a struct name is omitted. I have used the code from the tests instead. Perhaps this example can be made less verbose, but I think it is more convenient to see a "real" code as an example.
---
changelog: extend example for the `unneeded_field_pattern` lint
[CI] Use the latest Python available on Windows
This PR changes our Windows CI to always use the latest Python interpreter available in the GHA tool cache instead of hardcoding Python 3.7.6. This is needed because occasionally GitHub bumps the installed version, deleting the previous one.
This fixes the current GHA outage we're having. I fully expect the outage to propagate to Azure Pipelines in the coming days if we don't merge this, as both GHA and Azure use the same underlying image. Once the PR is merged we can re-enabled the double-gating.
r? @Mark-Simulacrum
This commit changes our Windows CI to always use the latest Python
interpreter available in the GHA tool cache instead of hardcoding Python
3.7.6. This is needed because occasionally GitHub bumps the installed
version, deleting the previous one.
The liveness dataflow analysis now lives in
`librustc_mir/dataflow/impls/liveness.rs`. The borrow-checker has an
abstraction around of "defs" and "uses" that I've made module private. I
would have moved it to `util/def_use.rs`, but there's a slightly
different abstraction used for copy propagation with that name.
reword "possible candidate" import suggestion
This suggestion has always read a bit awkwardly to me, particularly the "possible better candidate" variant.
This commit rewords the suggestion to be more concise and mention the kind of the suggested item. There isn't a nice way to label individual suggestions, so I opted to use "items" in the case of multiple suggestions.
Allow a few warnings.
On Windows, these types were causing warnings to be emitted during the
build. These types are allowed to not have idiomatic names, so the
warning should be supressed.
