Add `extra_unused_type_parameters` lint
Closes#9240. ~~Keeping this as draft for now, because of a bug that I don't know how to fix.~~ It seems that opaque return types are not walked properly, for some unknown reason. As in, the following:
```rust
fn used_ret_opaque<A>() -> impl Iterator<Item = A> {
std::iter::empty()
}
```
This triggers the lint even though it shouldn't. Discussion on Zulip didn't illuminate any possible reasons why, so PR-ing this now to increase visibility.
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changelog: new lint: [`extra_unused_type_parameters`]
[#10028](https://github.com/rust-lang/rust-clippy/pull/10028)
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wildcard_enum_match_arm lint takes the enum origin into account
fixes#7419
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changelog: Enhancement: [`wildcard_enum_match_arm`]: Now lints missing private variants, for local enums
[#10250](https://github.com/rust-lang/rust-clippy/pull/10250)
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Fix version declared for semicolon_inside_block and semicolon_outside…
As per Issue #10244, the lint were documentated
as being part of 1.66.0 but will actually be
released 1.68.0 .
changelog: [`semicolon_inside_block`]: Documentation fix
Fixes#10244
Mark uninlined_format_args as pedantic
Fixes https://github.com/rust-lang/rust-clippy/issues/10087
We should restore this when rust-analyzer support gets better. Worth filing an issue to track.
changelog: Mark [`uninlined_format_args`] as `pedantic`
Add machine applicable suggestion for `needless_lifetimes`
changelog: [`needless_lifetimes`]: Add machine applicable suggestion
Fixes#9360
It doesn't make suggestions for async functions as the input lifetime spans are funky there
The examples in #5787 and #7271 no longer seem to FP this PR aside, I added tests for them rather than disabling the lint entirely for async functions, I don't know if there are further FPs there though
Closes#5787Closes#7271
[`unused_io_amount`]: Lint with `is_ok` and `is_err`
Fixes#10132
changelog: Apply [`unused_io_amount`] lint to `is_ok` and `is_err` without checking read/write amount
prevents `len_without_is_empty` from yielding positive when `len` takes arguments besides `&self`
Fixes#9520
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changelog: FP [`len_without_is_empty`]: No longer lints, if `len` as a non-default signature
[#10255](https://github.com/rust-lang/rust-clippy/pull/10255)
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more than just `&self` in non-standard implementations.
changelog: Fix [`len_without_is_empty`] false positive when len has a
non-standard method signature
Fixes#9520
`invalid_regex`: Show full error when string value doesn't match source
changelog: [`invalid_regex`]: Show full error when parsing non-literals or regular strings containing escape sequences
Fixes#4170, the escape sequence there causes the span to be incorrect which will have caused most of the confusion
Use stable metric for const eval limit instead of current terminator-based logic
This patch adds a `MirPass` that inserts a new MIR instruction `ConstEvalCounter` to any loops and function calls in the CFG. This instruction is used during Const Eval to count against the `const_eval_limit`, and emit the `StepLimitReached` error, replacing the current logic which uses Terminators only.
The new method of counting loops and function calls should be more stable across compiler versions (i.e., not cause crates that compiled successfully before, to no longer compile when changes to the MIR generation/optimization are made).
Also see: #103877
