This commit adds an rustfmt.toml for using for **new** code.
Old code should continut to use old style, until we put automated
style checks in place.
See
https://internals.rust-lang.org/t/running-rustfmt-on-rust-lang-rust-and-other-rust-lang-repositories/8732/81
for the reason why we deviate from the default formatting. The TL;DR
is that currently compiler uses a pretty condensed style of code, and
default settings both create a huge diff and inflate the number of
lines. use_small_heuristics=Max fixes that.
version=Two is required for bug-fixes, which technically can't be made
to the stable first version
Rollup of 12 pull requests
Successful merges:
- #59928 (Make deprecation lint `ambiguous_associated_items` deny-by-default)
- #60220 (report fatal errors during doctest parsing)
- #60373 (Tidy: ensure lang features are sorted by since)
- #60388 (Disallow non-explicit elided lifetimes in async fn)
- #60393 ( Do not suggest incorrect syntax on pattern type error due to borrow)
- #60401 (Rename `RUST_LOG` to `RUSTC_LOG`)
- #60409 (Require a trait in the bounds of existential types)
- #60455 (Resolve match arm ty when arms diverge)
- #60457 (Const prop refactoring)
- #60467 (Avoid repeated interning of static strings.)
- #60478 (minor compiler doc tweaks)
- #60501 (Propagate mutability from arguments to local bindings in async fn)
Failed merges:
r? @ghost
Avoid repeated interning of static strings.
`file_metadata_raw` interns the strings `"<unknown>"` and `""` very
frequently. This commit avoids that, which reduces the number of symbols
interned significantly and reduces instruction counts by up to 0.5% on
some workloads.
Const prop refactoring
This is rebased on top of #60428 so only the top commit is new.
This is the refactoring to remove the `mir` field from `ConstPropagator` which is necessary before we can begin to actually propagate constants.
r? @oli-obk
Make `std::fs::copy` attempt to create copy-on-write clones of files on MacOS
The behaviour of MacOS now matches Linux which uses `copy_file_range` to perform CoW file copies where available and supported by the underlying filesystem.
`find_attr_val(&line, "since")` returns `Some(", issue = ")` when
`line` is set to the following line:
```
[unstable(feature = "checked_duration_since", issue = "58402")]
```
Make `find_attr_val` use regex that is a little bit more
precise (requires `=` after key name).
It still does not handle all cases (e.g., extra leading chars in key
name, or escaped quotes in value), but is good enough for now.
