Auto merge of #8636 - flip1995:release_changelog_quick_update, r=xFrednet
Add documentation on how to do a minimal changelog update
This ensures that the link to the Clippy version in the Rust release
blog post works correctly. The additional `(beta)` behind the previous
beta version breaks that link otherwise.
Auto merge of #8620 - Alexendoo:test-fmt-first, r=flip1995
Run fmt test before compile-test/dogfood
I seem to always forget to run `cargo dev fmt` before doing a test. This lets it fail fast rather than going through the much longer compile-test/dogfood tests first
Auto merge of #8607 - Alexendoo:cargo-dev-lint-dir, r=flip1995,giraffate
Allow running `cargo dev lint` on a package directory
Allows you run the local clippy in a specified directory, e.g. allowing
```sh
# Lint a ui-cargo test
cargo dev lint tests/ui-cargo/wildcard_dependencies/fail
# Lint some other project
cargo dev lint ~/my-project
```
The `target` directory is set to a tempdir which isn't ideal for medium/large projects as it would be compiled from scratch. This is to avoid cached clippy messages where you `cargo dev lint dir`, change something in clippy, and run `cargo dev lint dir` again
changelog: Dev: `cargo dev lint` can now be run on a package directory
Add documentation on how to do a minimal changelog update
This ensures that the link to the Clippy version in the Rust release
blog post works correctly. The additional `(beta)` behind the previous
beta version breaks that link otherwise.
Auto merge of #8632 - Jarcho:cast_ptr_alignment, r=llogiq
Don't lint `cast_ptr_alignment` when used for unaligned reads and writes
fixes #2881
Ideally this would trace the usage of the value rather than only looking at the parent expression, but that would require dataflow analysis. e.g.
```rust
let x = ptr as *const u16;
c.read_unaligned(x);
```
Arch specific intrinsic functions need to be checked for ones which could take an unaligned pointer. This can be another PR.
changelog: Don't lint `cast_ptr_alignment` when used for unaligned reads and writes
changelog: Don't lint `undocumented_unsafe_blocks` when the unsafe block comes from a proc-macro.
changelog: Don't lint `undocumented_unsafe_blocks` when the preceding line has a safety comment and the unsafe block is a sub-expression.
Auto merge of #8594 - FoseFx:unit_like_struct_brackets, r=giraffate
add `empty_structs_with_brackets`
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Auto merge of #8605 - Jarcho:remove-deps, r=xFrednet
Remove deps
This remove both `regex` and `cargo_metadata` as dependencies making `clippy_dev` compile ~3x faster (~46s -> ~16s locally). `cargo_metadata` was used to extract the `version` field from `Cargo.toml`, which is done trivially without that. `regex` was used to parse `define_clippy_lint` in `update_lints` which is now done using `rustc_lexer`. This isn't any simpler, but it compiles ~15s faster and runs ~3x faster (~2.1s -> ~0.7s locally).
The next biggest offenders to compile times are `clap` and `winapi` on windows. `clap` could be removed, but re-implementing enough is probably more work than it's worth. `winapi` is used by `opener` and `walkdir` so it's stuck there.
Auto merge of #8611 - Alexendoo:module-files-relative-paths, r=llogiq
Handle relative paths in module_files lints
The problem being that when clippy is run in the project's directory `lp` would be a relative path, this wasn't caught by the tests as there `lp` is an absolute path. Being a relative path it did not start with `trim_src_path` and so was ignored
Also allowed the removal of some `.to_os_string`/`.to_owned`s
changelog: Fixes [`self_named_module_files`] and [`mod_module_files`] not linting
bors [Wed, 30 Mar 2022 16:57:24 +0000 (16:57 +0000)]
Auto merge of #8576 - smoelius:crate_in_macro_def, r=llogiq
Add `crate_in_macro_def` lint
This PR adds a lint to check for `crate` as opposed to `$crate` used in a macro definition.
I think this can close #4798. That issue focused on the case where the macro author "imports something into said macro."
But I think use of `crate` is likely to be a bug whether it appears in a `use` statement or not. There could be some use case I am failing to see, though. (cc: `@nilscript` `@flip1995)`
bors [Wed, 30 Mar 2022 16:04:14 +0000 (16:04 +0000)]
Auto merge of #8592 - c410-f3r:stuff, r=flip1995
Do not fire `panic` in a constant environment
Let rustc handle panics in constant environments.
Since https://github.com/rust-lang/rust-clippy/issues/8348 I thought that such modification would require a lot of work but thanks to https://github.com/rust-lang/rust-clippy/pull/8588 I now know that it is not the case.
changelog: [`panic`]: No longer lint in constant context. `rustc` already handles this.
bors [Thu, 24 Mar 2022 12:57:08 +0000 (12:57 +0000)]
Auto merge of #8579 - yoav-lavi:squashed-master, r=flip1995
`unnecessary_join` lint
changelog: Adds a lint called ``[`unnecessary_join`]`` that detects cases of `.collect::<Vec<String>>.join("")` or `.collect::<Vec<_>>.join("")` on an iterator, suggesting `.collect::<String>()` instead
Fixes: https://github.com/rust-lang/rust-clippy/issues/8570
This is a reopen of https://github.com/rust-lang/rust-clippy/pull/8573
Dylan DPC [Thu, 17 Mar 2022 21:55:02 +0000 (22:55 +0100)]
Rollup merge of #94309 - eholk:issue-57017, r=tmandry
[generator_interior] Be more precise with scopes of borrowed places
Previously the generator interior type checking analysis would use the nearest temporary scope as the scope of a borrowed value. This ends up being overly broad for cases such as:
fn main() {
let client = Client;
let g = move || match status(&client) {
_status => yield,
};
assert_send(g);
}
```
In this case, the borrow `&client` could be considered in scope for the entirety of the `match` expression, meaning it would be viewed as live across the `yield`, therefore making the generator not `Send`.
In most cases, we want to use the enclosing expression as the scope for a borrowed value which will be less than or equal to the nearest temporary scope. This PR changes the analysis to use the enclosing expression as the scope for most borrows, with the exception of borrowed RValues which are true temporary values that should have the temporary scope. There's one further exception where borrows of a copy such as happens in autoref cases also should be ignored despite being RValues.
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