Fix stack overflow issue in `redundant_pattern_matching`
Fixes#7169
~~cc `@Jarcho` Since tomorrow is release day and we need to get this also fixed in beta, I'll just revert the PR instead of looking into the root issue. Your changes are good, so if you have an idea what could cause this stack overflow and know how to fix it, please open a PR that reverts this revert with a fix.~~
r? `@llogiq`
changelog: none (fixes stack overflow, but this was introduced in this release cycle)
needless_collect: Lint cases with type annotations for indirect usage and recognize `BinaryHeap`
fixes#7110
changelog: needless_collect: Lint cases with type annotations for indirect usage and recognize `BinaryHeap`.
[single_char_pattern] add strip_prefix and strip_suffix
Title says it all. Adjusted ui tests.
I added the second commit in case you don't like that I moved that table into `single_char_pattern.rs` directly. I don't see any reason why it shouldn't be in that file. It isn't used anywhere else.
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: add strip_prefix and strip_suffix to single_char_pattern lint
while_immutable_cond: check condition for mutation
This fixes#6689 by also checking the bindings mutated in the condition, whereas it was previously only checked in the loop body.
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changelog: Fix FP in [`while_immutable_cond`] where mutation in the loop variable wasn't picked up.
`implicit_return` improvements
fixes: #6940
changelog: Fix `implicit_return` suggestion for async functions
changelog: Improve `implicit_return` suggestions when returning the result of a macro
changelog: Check for `break` expressions inside a loop which are then implicitly returned
changelog: Allow all diverging functions in `implicit_return`, not just panic functions
Remove leftover plugin conf_file code
changelog: none
Removes dead code that used to support the following syntax:
```rust
#![plugin(clippy(conf_file="path/to/clippy's/configuration"))]
```
RLS (and others?) will need to remove the `&[]` from `clippy_lints::read_conf(&[], sess)`.
r? `@flip1995`
thread 'rustc' panicked at 'index out of bounds: the len is 0 but the index is 0', src/tools/clippy/clippy_lints/src/matches.rs:1595:53
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
I don't have a minimised testcase because I don't have time to reduce libstd down to a few lines right now.
Fix FN in `iter_cloned_collect` with a large array
fixes#6808
changelog: Fix FN in `iter_cloned_collect` with a large array
I spotted that [is_iterable_array](a362a4d1d0/clippy_lints/src/loops/explicit_iter_loop.rs (L67-L75)) function that `explicit_iter_loop` lint is using only works for array sizes <= 32.
There is this comment:
> IntoIterator is currently only implemented for array sizes <= 32 in rustc
I'm a bit confused, because I read that [IntoIterator for arrays](https://doc.rust-lang.org/src/core/array/mod.rs.html#194-201) with const generic `N` is stable since = "1.0.0". Although Const Generics MVP were stabilized in Rust 1.51.
Should I set MSRV for the current change? I will try to test with older compilers soon.
manual_unwrap_or: fix invalid code suggestion, due to macro expansion
fixes#6965
changelog: fix invalid code suggestion in `manual_unwrap_or` lint, due to macro expansion
extend `single_element_loop` to match `.iter()`
This extends `single_element_loop` to also match `[..].iter()` in the loop argument. Related to #7125, but not completely fixing it due to the lint only firing if the array expression contains a local variable.
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changelog: none
