// NOTE: Entries should be created with `cargo dev deprecate` /// This struct fakes the `Lint` declaration that is usually created by `declare_lint!`. This /// enables the simple extraction of the metadata without changing the current deprecation /// declaration. pub struct ClippyDeprecatedLint { #[cfg(feature = "internal")] #[allow(dead_code)] desc: &'static str, } macro_rules! declare_deprecated_lint { { $(#[$attr:meta])* pub $name: ident, $reason: literal} => { $(#[$attr])* #[allow(dead_code)] pub static $name: ClippyDeprecatedLint = ClippyDeprecatedLint { #[cfg(feature = "internal")] desc: $reason }; } } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This used to check for `assert!(a == b)` and recommend /// replacement with `assert_eq!(a, b)`, but this is no longer needed after RFC 2011. #[clippy::version = "pre 1.29.0"] pub SHOULD_ASSERT_EQ, "`assert!()` will be more flexible with RFC 2011" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This used to check for `Vec::extend`, which was slower than /// `Vec::extend_from_slice`. Thanks to specialization, this is no longer true. #[clippy::version = "pre 1.29.0"] pub EXTEND_FROM_SLICE, "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// `Range::step_by(0)` used to be linted since it's /// an infinite iterator, which is better expressed by `iter::repeat`, /// but the method has been removed for `Iterator::step_by` which panics /// if given a zero #[clippy::version = "pre 1.29.0"] pub RANGE_STEP_BY_ZERO, "`iterator.step_by(0)` panics nowadays" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This used to check for `Vec::as_slice`, which was unstable with good /// stable alternatives. `Vec::as_slice` has now been stabilized. #[clippy::version = "pre 1.29.0"] pub UNSTABLE_AS_SLICE, "`Vec::as_slice` has been stabilized in 1.7" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This used to check for `Vec::as_mut_slice`, which was unstable with good /// stable alternatives. `Vec::as_mut_slice` has now been stabilized. #[clippy::version = "pre 1.29.0"] pub UNSTABLE_AS_MUT_SLICE, "`Vec::as_mut_slice` has been stabilized in 1.7" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This lint should never have applied to non-pointer types, as transmuting /// between non-pointer types of differing alignment is well-defined behavior (it's semantically /// equivalent to a memcpy). This lint has thus been refactored into two separate lints: /// cast_ptr_alignment and transmute_ptr_to_ptr. #[clippy::version = "pre 1.29.0"] pub MISALIGNED_TRANSMUTE, "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This lint is too subjective, not having a good reason for being in clippy. /// Additionally, compound assignment operators may be overloaded separately from their non-assigning /// counterparts, so this lint may suggest a change in behavior or the code may not compile. #[clippy::version = "1.30.0"] pub ASSIGN_OPS, "using compound assignment operators (e.g., `+=`) is harmless" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// The original rule will only lint for `if let`. After /// making it support to lint `match`, naming as `if let` is not suitable for it. /// So, this lint is deprecated. #[clippy::version = "pre 1.29.0"] pub IF_LET_REDUNDANT_PATTERN_MATCHING, "this lint has been changed to redundant_pattern_matching" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This lint used to suggest replacing `let mut vec = /// Vec::with_capacity(n); vec.set_len(n);` with `let vec = vec![0; n];`. The /// replacement has very different performance characteristics so the lint is /// deprecated. #[clippy::version = "pre 1.29.0"] pub UNSAFE_VECTOR_INITIALIZATION, "the replacement suggested by this lint had substantially different behavior" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This lint has been superseded by #[must_use] in rustc. #[clippy::version = "1.39.0"] pub UNUSED_COLLECT, "`collect` has been marked as #[must_use] in rustc and that covers all cases of this lint" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// Associated-constants are now preferred. #[clippy::version = "1.44.0"] pub REPLACE_CONSTS, "associated-constants `MIN`/`MAX` of integers are preferred to `{min,max}_value()` and module constants" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// The regex! macro does not exist anymore. #[clippy::version = "1.47.0"] pub REGEX_MACRO, "the regex! macro has been removed from the regex crate in 2018" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This lint has been replaced by `manual_find_map`, a /// more specific lint. #[clippy::version = "1.51.0"] pub FIND_MAP, "this lint has been replaced by `manual_find_map`, a more specific lint" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// This lint has been replaced by `manual_filter_map`, a /// more specific lint. #[clippy::version = "1.53.0"] pub FILTER_MAP, "this lint has been replaced by `manual_filter_map`, a more specific lint" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// The `avoid_breaking_exported_api` config option was added, which /// enables the `enum_variant_names` lint for public items. #[clippy::version = "1.54.0"] pub PUB_ENUM_VARIANT_NAMES, "set the `avoid-breaking-exported-api` config option to `false` to enable the `enum_variant_names` lint for public items" } declare_deprecated_lint! { /// ### What it does /// Nothing. This lint has been deprecated. /// /// ### Deprecation reason /// The `avoid_breaking_exported_api` config option was added, which /// enables the `wrong_self_conversion` lint for public items. #[clippy::version = "1.54.0"] pub WRONG_PUB_SELF_CONVENTION, "set the `avoid-breaking-exported-api` config option to `false` to enable the `wrong_self_convention` lint for public items" }