Currently, `x fmt` can print two lists of files.
- The untracked files that are skipped. Always done if within a git
repo.
- The modified files that are formatted.
But if you run with `--all` (or with `GITHUB_ACTIONS=true`) it doesn't
print anything about which files are formatted.
This commit increases consistency.
- The formatted/checked files are now always printed. And it makes it clear why
a file was formatted, e.g. with "modified".
- It uses the same code for both untracked files and formatted/checked
files. This means that now if there are a lot of untracked files just
the number will be printed, which is like the old behaviour for
modified files.
Example output:
```
fmt: skipped 31 untracked files
fmt: formatted modified file compiler/rustc_mir_transform/src/instsimplify.rs
fmt: formatted modified file compiler/rustc_mir_transform/src/validate.rs
fmt: formatted modified file library/core/src/ptr/metadata.rs
fmt: formatted modified file src/bootstrap/src/core/build_steps/format.rs
```
or (with `--all`):
```
fmt: checked 3148 files
```
- Precede them all with `fmt` so it's clear where they are coming from.
- Use `error:` and `warning:` when appropriate.
- Print warnings to stderr instead of stdout
By default, `x fmt` formats/checks modified files. But it also lets you
choose one or more paths instead.
This adds significant complexity to `x fmt`. Explicit paths are
specified via `WalkBuilder::add` rather than `OverrideBuilder::add`. The
`ignore` library is not simple, and predicting the interactions between
the two mechanisms is difficult.
Here's a particularly interesting case.
- You can request a path P that is excluded by the `ignore` list in the
`rustfmt.toml`. E.g. `x fmt tests/ui/` or `x fmt tests/ui/bitwise.rs`.
- `x fmt` will add P to the walker (via `WalkBuilder::add`), traverse it
(paying no attention to the `ignore` list from the `rustfmt.toml`
file, due to the different mechanism), and call `rustfmt` on every
`.rs` file within it.
- `rustfmt` will do nothing to those `.rs` files, because it *also*
reads `rustfmt.toml` and sees that they match the `ignore` list!
It took me *ages* to debug and understand this behaviour. Not good!
`x fmt` even lets you name a path below the current directory. This was
intended to let you do things like `x fmt std` that mirror things like
`x test std`. This works by looking for `std` and finding `library/std`,
and then formatting that. Unfortuantely, this motivating case now gives
an error. When support was added in #107944, `library/std` was the only
directory named `std`. Since then, `tests/ui/std` was added, and so `x
fmt std` now gives an error.
In general, explicit paths don't seem particularly useful. The only two
cases `x fmt` really needs are:
- format/check the files I have modified (99% of uses)
- format/check all files
(While respecting the `ignore` list in `rustfmt.toml`, of course.)
So this commit moves to that model. `x fmt` will now give an error if
given an explicit path. `x fmt` now also supports a `--all` option. (And
running with `GITHUB_ACTIONS=true` also causes everything to be
formatted/checked, as before.) Much simpler!
A small diagnostic improvement for dropping_copy_types
For a value `m` which implements `Copy` trait, `drop(m);` does nothing.
We now suggest user to ignore it by a abstract and general note: `let _ = ...`.
I think we can give a clearer note here: `let _ = m;`
fixes#125189
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Currently we can't automatically enforce formatting on tests (see #125637), but
we can at least keep things relatively tidy by occasionally running the
formatter manually.
This was done by temporarily commenting out the `"/tests/"` exclusion in
`rustfmt.toml`, and then running `x fmt tests/coverage` and
`x test coverage --bless`.
For coverage tests, splitting code across multiple lines often makes the
resulting coverage report easier to interpret, so we force rustfmt to retain
line breaks by adding dummy line comments with `//`.
Rollup of 8 pull requests
Successful merges:
- #124251 (Add an intrinsic for `ptr::metadata`)
- #124320 (Add `--print=check-cfg` to get the expected configs)
- #125226 (Make more of the test suite run on Mac Catalyst)
- #125381 (Silence some resolve errors when there have been glob import errors)
- #125633 (miri: avoid making a full copy of all new allocations)
- #125638 (Rewrite `lto-smoke`, `simple-rlib` and `mixing-deps` `run-make` tests in `rmake.rs` format)
- #125639 (Support `./x doc run-make-support --open`)
- #125664 (Tweak relations to no longer rely on `TypeTrace`)
r? `@ghost`
`@rustbot` modify labels: rollup
Tweak relations to no longer rely on `TypeTrace`
Remove `At::trace`, and inline all of the `Trace::equate`,etc methods into `At`.
The only nontrivial change is that we use `AliasTerm` to relate two unevaluated consts in the old-solver impl of `ConstEquate`, since `AliasTerm` does implement `ToTrace` and will relate the args structurally (shallowly).
r? lcnr
Support `./x doc run-make-support --open`
Having easy access to the run-make-support documentation is invaluable when creating run-make tests using the new Rust recipes.
Silence some resolve errors when there have been glob import errors
When encountering `use foo::*;` where `foo` fails to be found, and we later encounter resolution errors, we silence those later errors.
A single case of the above, for an *existing* import on a big codebase would otherwise have a huge number of knock-down spurious errors.
Ideally, instead of a global flag to silence all subsequent resolve errors, we'd want to introduce an unnameable binding in the appropriate rib as a sentinel when there's a failed glob import, so when we encounter a resolve error we can search for that sentinel and if found, and only then, silence that error. The current approach is just a quick proof of concept to iterate over.
Partially address #96799.
Make more of the test suite run on Mac Catalyst
Combined with https://github.com/rust-lang/rust/pull/125225, the only failing parts of the test suite are in `tests/rustdoc-js`, `tests/rustdoc-js-std` and `tests/debuginfo`. Tested with:
```console
./x test --target=aarch64-apple-ios-macabi library/std
./x test --target=aarch64-apple-ios-macabi --skip=tests/rustdoc-js --skip=tests/rustdoc-js-std --skip=tests/debuginfo tests
```
Will probably put up a PR later to enable _running_ on (not just compiling for) Mac Catalyst in CI, though not sure where exactly I should do so? `src/ci/github-actions/jobs.yml`?
Note that I've deliberately _not_ enabled stack overflow handlers on iOS/tvOS/watchOS/visionOS (see https://github.com/rust-lang/rust/issues/25872), but rather just skipped those tests, as it uses quite a few APIs that I'd be weary about getting rejected by the App Store (note that Swift doesn't do it on those platforms either).
r? ``@workingjubilee``
CC ``@thomcc``
``@rustbot`` label O-ios O-apple
Add `--print=check-cfg` to get the expected configs
This PR adds a new `--print` variant `check-cfg` to get the expected configs.
Details and rational can be found on the MCP: https://github.com/rust-lang/compiler-team/issues/743
``@rustbot`` label +F-check-cfg +S-waiting-on-MCP
r? ``@petrochenkov``
Update cargo
5 commits in a8d72c675ee52dd57f0d8f2bae6655913c15b2fb..431db31d0dbeda320caf8ef8535ea48eb3093407
2024-05-24 03:34:17 +0000 to 2024-05-28 18:17:31 +0000
- Include `lints.rust.unexpected_cfgs.check-cfg` in the fingerprint (rust-lang/cargo#13958)
- feat(test): Auto-redact elapsed time (rust-lang/cargo#13973)
- chore: Update to snapbox 0.6 (rust-lang/cargo#13963)
- fix: check if rev is full commit sha for github fast path (rust-lang/cargo#13969)
- test: switch from `drop` to `let _` due to nightly rustc change (rust-lang/cargo#13964)
r? ghost
rustfmt fixes
The `rmake.rs` entries in `rustfmt.toml` are causing major problems for `x fmt`. This PR removes them and does some minor related cleanups.
r? ``@GuillaumeGomez``
NVPTX: Avoid PassMode::Direct for args in C abi
Fixes#117480
I must admit that I'm confused about `PassMode` altogether, is there a good sum-up threads for this anywhere? I'm especially confused about how "indirect" and "byval" goes together. To me it seems like "indirect" basically means "use a indirection through a pointer", while "byval" basically means "do not use indirection through a pointer".
The return used to keep `PassMode::Direct` for small aggregates. It turns out that `make_indirect` messes up the tests and one way to fix it is to keep `PassMode::Direct` for all aggregates. I have mostly seen this PassMode mentioned for args. Is it also a problem for returns? When experimenting with `byval` as an alternative i ran into [this assert](61a3eea804/compiler/rustc_codegen_llvm/src/abi.rs (L463C22-L463C22))
I have added tests for the same kind of types that is already tested for the "ptx-kernel" abi. The tests cannot be enabled until something like #117458 is completed and merged.
CC: ``@RalfJung`` since you seem to be the expert on this and have already helped me out tremendously
CC: ``@RDambrosio016`` in case this influence your work on `rustc_codegen_nvvm`
``@rustbot`` label +O-NVPTX
Omit non-needs_drop drop_in_place in vtables
This replaces the drop_in_place reference with null in vtables. On librustc_driver.so, this drops about ~17k (11%) dynamic relocations from the output, since many vtables can now be placed in read-only memory, rather than having a relocated pointer included.
This makes a tradeoff by adding a null check at vtable call sites. I'm not sure that's readily avoidable without changing the vtable format (e.g., so that we can use a pc-relative relocation instead of an absolute address, and avoid the dynamic relocation that way). But it seems likely that the check is cheap at runtime.
Accepted MCP: https://github.com/rust-lang/compiler-team/issues/730
