`len_without_is_empty` improvements
fixes: #6958fixes: #6972
changelog: Check the return type of `len`. Only integral types, or an `Option` or `Result` wrapping one.
changelog: Ensure the return type of `is_empty` matches. e.g. `Option<usize>` -> `Option<bool>`
Check the return type of `len`. Only integral types, or an `Option` or `Result` wrapping one.
Ensure the return type of `is_empty` matches. e.g. `Option<usize>` -> `Option<bool>`
Improve `redundant_slicing`
fixes: #6968
changelog: Fix `redundant_slicing` suggestion when a reborrow might be required or when the value is from a macro call
Fix bad suggestion when a reborrow might be required
Fix bad suggestion when the value being sliced is a macro call
Don't lint inside of a macro due to the previous context sensitive changes
Fix `new_ret_no_self` false positive
fixes: #1724
changelog: Fix false positive with `new_ret_no_self` when returning `Self` with different generic arguments
Fix false positive in `manual_flatten`
This pull request fixes false positive in `manual_flatten` in case using a slice of references .
closes: #6893
changelog: fix false positive in `manual_flatten`
This currently creates a field which is always false on GenericParamDefKind for future use when
consts are permitted to have defaults
Update const_generics:default locations
Previously just ignored them, now actually do something about them.
Fix using type check instead of value
Add parsing
This adds all the necessary changes to lower const-generics defaults from parsing.
Change P<Expr> to AnonConst
This matches the arguments passed to instantiations of const generics, and makes it specific to
just anonymous constants.
Attempt to fix lowering bugs
Ignore str::len() in or_fun_call lint.
changelog: Changed `or_fun_call` to ignore `str::len`, in the same way it ignores `slice::len` and `array::len`
Closes#6943
Refactor lints in methods module
This PR refactors methods lints other than the lints I refactored in https://github.com/rust-lang/rust-clippy/pull/6826 and moves some functions to methods/utils.rs.
Basically, I follow the instruction described in #6680.
**For ease of review, I refactored step by step, keeping each commit small.**
closes https://github.com/rust-lang/rust-clippy/issues/6886
cc: `@phansch,` `@flip1995,` `@Y-Nak`
changelog: Move lints in methods module to their own modules and some function to methods/utils.rs.
search_is_some: add checking for `is_none()`
fixes: #6815
changelog: search_is_some: add checking for `is_none()`.
To be honest I don't know what is the process of renaming the lints. Appreciate any feedback if that needs to be handled differently. Thanks!
Fix suggestion with generics for `field_reassign_with_default` lint
Fix bad suggestion where `::` is missing after type if generics are involved
Fixes#6944
changelog: none
Fix bad suggestion for `match_single_binding` lint
Fix a bad suggestion that needs curly braces when the target `match` is the body of an arm.
Fixes#6572
changelog: none
Fix bad suggestion for generics in `new_without_default` lint
Fixes bad suggestion where a type parameter was missing for `new_without_default` lint.
Fixes#6933
changelog: none
needless_question_mark: don't lint if Some(..) is inside a macro def and the ? is not.
The suggestion would fail to apply.
Fixes#6921
changelog: needless_question_mark: don't lint if Some(..) is inside a macro def and the ? is not.
`match_wildcard` improvements
fixes: #6604fixes: #5733fixes: #6862#5733 is only fixed in the normal case, if different paths are used for the variants then the same problem will occur. It's cause by `def_path_str` returning an utterly useless result. I haven't dug into why yet.
For #6604 there should be some discussion before accepting this. It's easy enough to change the message rather than disable the lint for `Option` and `Result`.
changelog: Attempt to find a common path prefix for `match_wildcard_for_single_variants` and `wildcard_enum_match_arm`
changelog: Don't lint op `Option` and `Result` for `match_wildcard_for_single_variants` and `wildcard_enum_match_arm`
changelog: Consider `or` patterns and `Self` prefix for `match_wildcard_for_single_variants` and `wildcard_enum_match_arm`
