diff options
Diffstat (limited to 'clippy_lints/src/lib.rs')
| -rw-r--r-- | clippy_lints/src/lib.rs | 95 |
1 files changed, 49 insertions, 46 deletions
diff --git a/clippy_lints/src/lib.rs b/clippy_lints/src/lib.rs index 84898eae05a..172fdf8c852 100644 --- a/clippy_lints/src/lib.rs +++ b/clippy_lints/src/lib.rs @@ -7,6 +7,7 @@ #![feature(let_chains)] #![feature(let_else)] #![feature(lint_reasons)] +#![feature(never_type)] #![feature(once_cell)] #![feature(rustc_private)] #![feature(stmt_expr_attributes)] @@ -52,6 +53,7 @@ extern crate clippy_utils; use clippy_utils::parse_msrv; use rustc_data_structures::fx::FxHashSet; use rustc_lint::LintId; +use rustc_semver::RustcVersion; use rustc_session::Session; /// Macro used to declare a Clippy lint. @@ -159,25 +161,22 @@ macro_rules! declare_clippy_lint { } #[cfg(feature = "internal")] -mod deprecated_lints; +pub mod deprecated_lints; #[cfg_attr(feature = "internal", allow(clippy::missing_clippy_version_attribute))] mod utils; mod renamed_lints; // begin lints modules, do not remove this comment, it’s used in `update_lints` -mod absurd_extreme_comparisons; mod almost_complete_letter_range; mod approx_const; mod as_conversions; mod as_underscore; mod asm_syntax; mod assertions_on_constants; -mod assign_ops; mod async_yields_async; mod attrs; mod await_holding_invalid; -mod bit_mask; mod blacklisted_name; mod blocks_in_if_conditions; mod bool_assert_comparison; @@ -199,6 +198,7 @@ mod crate_in_macro_def; mod create_dir; mod dbg_macro; mod default; +mod default_instead_of_iter_empty; mod default_numeric_fallback; mod default_union_representation; mod dereference; @@ -209,11 +209,9 @@ mod disallowed_script_idents; mod disallowed_types; mod doc; mod doc_link_with_quotes; -mod double_comparison; mod double_parens; mod drop_forget_ref; mod duplicate_mod; -mod duration_subsec; mod else_if_without_else; mod empty_drop; mod empty_enum; @@ -221,9 +219,7 @@ mod empty_structs_with_brackets; mod entry; mod enum_clike; mod enum_variants; -mod eq_op; mod equatable_if_let; -mod erasing_op; mod escape; mod eta_reduction; mod excessive_bools; @@ -231,7 +227,6 @@ mod exhaustive_items; mod exit; mod explicit_write; mod fallible_impl_from; -mod float_equality_without_abs; mod float_literal; mod floating_point_arithmetic; mod format; @@ -244,7 +239,6 @@ mod from_str_radix_10; mod functions; mod future_not_send; mod get_first; -mod identity_op; mod if_let_mutex; mod if_not_else; mod if_then_some_else_none; @@ -260,7 +254,6 @@ mod inherent_to_string; mod init_numbered_fields; mod inline_fn_without_body; mod int_plus_one; -mod integer_division; mod invalid_upcast_comparisons; mod items_after_statements; mod iter_not_returning_iterator; @@ -281,6 +274,8 @@ mod manual_async_fn; mod manual_bits; mod manual_non_exhaustive; mod manual_ok_or; +mod manual_rem_euclid; +mod manual_retain; mod manual_strip; mod map_clone; mod map_err_ignore; @@ -300,7 +295,6 @@ mod missing_enforced_import_rename; mod missing_inline; mod mixed_read_write_in_expression; mod module_style; -mod modulo_arithmetic; mod mut_key; mod mut_mut; mod mut_mutex_lock; @@ -308,7 +302,6 @@ mod mut_reference; mod mutable_debug_assertion; mod mutex_atomic; mod needless_arbitrary_self_type; -mod needless_bitwise_bool; mod needless_bool; mod needless_borrowed_ref; mod needless_continue; @@ -327,10 +320,10 @@ mod non_expressive_names; mod non_octal_unix_permissions; mod non_send_fields_in_send_ty; mod nonstandard_macro_braces; -mod numeric_arithmetic; mod octal_escapes; mod only_used_in_recursion; mod open_options; +mod operators; mod option_env_unwrap; mod option_if_let_else; mod overflow_check_conditional; @@ -342,7 +335,6 @@ mod path_buf_push_overwrite; mod pattern_type_mismatch; mod precedence; mod ptr; -mod ptr_eq; mod ptr_offset_with_cast; mod pub_use; mod question_mark; @@ -363,7 +355,6 @@ mod repeat_once; mod return_self_not_must_use; mod returns; mod same_name_method; -mod self_assignment; mod self_named_constructors; mod semicolon_if_nothing_returned; mod serde_api; @@ -448,6 +439,39 @@ pub fn register_pre_expansion_lints(store: &mut rustc_lint::LintStore, sess: &Se store.register_pre_expansion_pass(move || Box::new(attrs::EarlyAttributes { msrv })); } +fn read_msrv(conf: &Conf, sess: &Session) -> Option<RustcVersion> { + let cargo_msrv = std::env::var("CARGO_PKG_RUST_VERSION") + .ok() + .and_then(|v| parse_msrv(&v, None, None)); + let clippy_msrv = conf.msrv.as_ref().and_then(|s| { + parse_msrv(s, None, None).or_else(|| { + sess.err(&format!( + "error reading Clippy's configuration file. `{}` is not a valid Rust version", + s + )); + None + }) + }); + + if let Some(cargo_msrv) = cargo_msrv { + if let Some(clippy_msrv) = clippy_msrv { + // if both files have an msrv, let's compare them and emit a warning if they differ + if clippy_msrv != cargo_msrv { + sess.warn(&format!( + "the MSRV in `clippy.toml` and `Cargo.toml` differ; using `{}` from `clippy.toml`", + clippy_msrv + )); + } + + Some(clippy_msrv) + } else { + Some(cargo_msrv) + } + } else { + clippy_msrv + } +} + #[doc(hidden)] pub fn read_conf(sess: &Session) -> Conf { let file_name = match utils::conf::lookup_conf_file() { @@ -463,12 +487,11 @@ pub fn read_conf(sess: &Session) -> Conf { let TryConf { conf, errors } = utils::conf::read(&file_name); // all conf errors are non-fatal, we just use the default conf in case of error for error in errors { - sess.struct_err(&format!( + sess.err(&format!( "error reading Clippy's configuration file `{}`: {}", file_name.display(), format_error(error) - )) - .emit(); + )); } conf @@ -543,21 +566,14 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: )) }); store.register_late_pass(|| Box::new(booleans::NonminimalBool)); - store.register_late_pass(|| Box::new(needless_bitwise_bool::NeedlessBitwiseBool)); - store.register_late_pass(|| Box::new(eq_op::EqOp)); store.register_late_pass(|| Box::new(enum_clike::UnportableVariant)); store.register_late_pass(|| Box::new(float_literal::FloatLiteral)); - let verbose_bit_mask_threshold = conf.verbose_bit_mask_threshold; - store.register_late_pass(move || Box::new(bit_mask::BitMask::new(verbose_bit_mask_threshold))); store.register_late_pass(|| Box::new(ptr::Ptr)); - store.register_late_pass(|| Box::new(ptr_eq::PtrEq)); store.register_late_pass(|| Box::new(needless_bool::NeedlessBool)); store.register_late_pass(|| Box::new(needless_bool::BoolComparison)); store.register_late_pass(|| Box::new(needless_for_each::NeedlessForEach)); store.register_late_pass(|| Box::new(misc::MiscLints)); store.register_late_pass(|| Box::new(eta_reduction::EtaReduction)); - store.register_late_pass(|| Box::new(identity_op::IdentityOp)); - store.register_late_pass(|| Box::new(erasing_op::ErasingOp)); store.register_late_pass(|| Box::new(mut_mut::MutMut)); store.register_late_pass(|| Box::new(mut_reference::UnnecessaryMutPassed)); store.register_late_pass(|| Box::new(len_zero::LenZero)); @@ -575,16 +591,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(non_octal_unix_permissions::NonOctalUnixPermissions)); store.register_early_pass(|| Box::new(unnecessary_self_imports::UnnecessarySelfImports)); - let msrv = conf.msrv.as_ref().and_then(|s| { - parse_msrv(s, None, None).or_else(|| { - sess.err(&format!( - "error reading Clippy's configuration file. `{}` is not a valid Rust version", - s - )); - None - }) - }); - + let msrv = read_msrv(conf, sess); let avoid_breaking_exported_api = conf.avoid_breaking_exported_api; let allow_expect_in_tests = conf.allow_expect_in_tests; let allow_unwrap_in_tests = conf.allow_unwrap_in_tests; @@ -639,7 +646,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(borrow_deref_ref::BorrowDerefRef)); store.register_late_pass(|| Box::new(no_effect::NoEffect)); store.register_late_pass(|| Box::new(temporary_assignment::TemporaryAssignment)); - store.register_late_pass(|| Box::new(transmute::Transmute)); + store.register_late_pass(move || Box::new(transmute::Transmute::new(msrv))); let cognitive_complexity_threshold = conf.cognitive_complexity_threshold; store.register_late_pass(move || { Box::new(cognitive_complexity::CognitiveComplexity::new( @@ -655,7 +662,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(derivable_impls::DerivableImpls)); store.register_late_pass(|| Box::new(drop_forget_ref::DropForgetRef)); store.register_late_pass(|| Box::new(empty_enum::EmptyEnum)); - store.register_late_pass(|| Box::new(absurd_extreme_comparisons::AbsurdExtremeComparisons)); store.register_late_pass(|| Box::new(invalid_upcast_comparisons::InvalidUpcastComparisons)); store.register_late_pass(|| Box::new(regex::Regex)); store.register_late_pass(|| Box::new(copies::CopyAndPaste)); @@ -678,8 +684,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(move || Box::new(doc::DocMarkdown::new(doc_valid_idents.clone()))); store.register_late_pass(|| Box::new(neg_multiply::NegMultiply)); store.register_late_pass(|| Box::new(mem_forget::MemForget)); - store.register_late_pass(|| Box::new(numeric_arithmetic::NumericArithmetic::default())); - store.register_late_pass(|| Box::new(assign_ops::AssignOps)); store.register_late_pass(|| Box::new(let_if_seq::LetIfSeq)); store.register_late_pass(|| Box::new(mixed_read_write_in_expression::EvalOrderDependence)); store.register_late_pass(|| Box::new(missing_doc::MissingDoc::new())); @@ -706,7 +710,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(useless_conversion::UselessConversion::default())); store.register_late_pass(|| Box::new(implicit_hasher::ImplicitHasher)); store.register_late_pass(|| Box::new(fallible_impl_from::FallibleImplFrom)); - store.register_late_pass(|| Box::new(double_comparison::DoubleComparisons)); store.register_late_pass(|| Box::new(question_mark::QuestionMark)); store.register_early_pass(|| Box::new(suspicious_operation_groupings::SuspiciousOperationGroupings)); store.register_late_pass(|| Box::new(suspicious_trait_impl::SuspiciousImpl)); @@ -714,7 +717,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(inherent_impl::MultipleInherentImpl)); store.register_late_pass(|| Box::new(neg_cmp_op_on_partial_ord::NoNegCompOpForPartialOrd)); store.register_late_pass(|| Box::new(unwrap::Unwrap)); - store.register_late_pass(|| Box::new(duration_subsec::DurationSubsec)); store.register_late_pass(|| Box::new(indexing_slicing::IndexingSlicing)); store.register_late_pass(|| Box::new(non_copy_const::NonCopyConst)); store.register_late_pass(|| Box::new(ptr_offset_with_cast::PtrOffsetWithCast)); @@ -725,13 +727,11 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(assertions_on_constants::AssertionsOnConstants)); store.register_late_pass(|| Box::new(transmuting_null::TransmutingNull)); store.register_late_pass(|| Box::new(path_buf_push_overwrite::PathBufPushOverwrite)); - store.register_late_pass(|| Box::new(integer_division::IntegerDivision)); store.register_late_pass(|| Box::new(inherent_to_string::InherentToString)); let max_trait_bounds = conf.max_trait_bounds; store.register_late_pass(move || Box::new(trait_bounds::TraitBounds::new(max_trait_bounds))); store.register_late_pass(|| Box::new(comparison_chain::ComparisonChain)); store.register_late_pass(|| Box::new(mut_key::MutableKeyType)); - store.register_late_pass(|| Box::new(modulo_arithmetic::ModuloArithmetic)); store.register_early_pass(|| Box::new(reference::DerefAddrOf)); store.register_early_pass(|| Box::new(double_parens::DoubleParens)); store.register_late_pass(|| Box::new(format_impl::FormatImpl::new())); @@ -828,9 +828,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(stable_sort_primitive::StableSortPrimitive)); store.register_late_pass(|| Box::new(repeat_once::RepeatOnce)); store.register_late_pass(|| Box::new(unwrap_in_result::UnwrapInResult)); - store.register_late_pass(|| Box::new(self_assignment::SelfAssignment)); store.register_late_pass(|| Box::new(manual_ok_or::ManualOkOr)); - store.register_late_pass(|| Box::new(float_equality_without_abs::FloatEqualityWithoutAbs)); store.register_late_pass(|| Box::new(semicolon_if_nothing_returned::SemicolonIfNothingReturned)); store.register_late_pass(|| Box::new(async_yields_async::AsyncYieldsAsync)); let disallowed_methods = conf.disallowed_methods.clone(); @@ -910,6 +908,11 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|| Box::new(mismatching_type_param_order::TypeParamMismatch)); store.register_late_pass(|| Box::new(as_underscore::AsUnderscore)); store.register_late_pass(|| Box::new(read_zero_byte_vec::ReadZeroByteVec)); + store.register_late_pass(|| Box::new(default_instead_of_iter_empty::DefaultIterEmpty)); + store.register_late_pass(move || Box::new(manual_rem_euclid::ManualRemEuclid::new(msrv))); + store.register_late_pass(move || Box::new(manual_retain::ManualRetain::new(msrv))); + let verbose_bit_mask_threshold = conf.verbose_bit_mask_threshold; + store.register_late_pass(move || Box::new(operators::Operators::new(verbose_bit_mask_threshold))); // add lints here, do not remove this comment, it's used in `new_lint` } |