1 #![feature(array_windows)]
2 #![feature(binary_heap_into_iter_sorted)]
3 #![feature(box_patterns)]
4 #![feature(control_flow_enum)]
5 #![feature(drain_filter)]
6 #![feature(iter_intersperse)]
7 #![feature(let_chains)]
8 #![feature(lint_reasons)]
9 #![feature(never_type)]
10 #![feature(once_cell)]
11 #![feature(rustc_private)]
12 #![feature(stmt_expr_attributes)]
13 #![recursion_limit = "512"]
14 #![cfg_attr(feature = "deny-warnings", deny(warnings))]
15 #![allow(clippy::missing_docs_in_private_items, clippy::must_use_candidate)]
16 #![warn(trivial_casts, trivial_numeric_casts)]
17 // warn on lints, that are included in `rust-lang/rust`s bootstrap
18 #![warn(rust_2018_idioms, unused_lifetimes)]
19 // warn on rustc internal lints
20 #![warn(rustc::internal)]
21 // Disable this rustc lint for now, as it was also done in rustc
22 #![allow(rustc::potential_query_instability)]
24 // FIXME: switch to something more ergonomic here, once available.
25 // (Currently there is no way to opt into sysroot crates without `extern crate`.)
26 extern crate rustc_arena;
27 extern crate rustc_ast;
28 extern crate rustc_ast_pretty;
29 extern crate rustc_data_structures;
30 extern crate rustc_driver;
31 extern crate rustc_errors;
32 extern crate rustc_hir;
33 extern crate rustc_hir_analysis;
34 extern crate rustc_hir_pretty;
35 extern crate rustc_hir_typeck;
36 extern crate rustc_index;
37 extern crate rustc_infer;
38 extern crate rustc_lexer;
39 extern crate rustc_lint;
40 extern crate rustc_middle;
41 extern crate rustc_parse;
42 extern crate rustc_session;
43 extern crate rustc_span;
44 extern crate rustc_target;
45 extern crate rustc_trait_selection;
48 extern crate clippy_utils;
50 extern crate declare_clippy_lint;
53 use std::path::PathBuf;
55 use clippy_utils::msrvs::Msrv;
56 use rustc_data_structures::fx::FxHashSet;
57 use rustc_lint::{Lint, LintId};
58 use rustc_session::Session;
60 #[cfg(feature = "internal")]
61 pub mod deprecated_lints;
62 #[cfg_attr(feature = "internal", allow(clippy::missing_clippy_version_attribute))]
68 // begin lints modules, do not remove this comment, it’s used in `update_lints`
69 mod almost_complete_letter_range;
73 mod assertions_on_constants;
74 mod assertions_on_result_states;
75 mod async_yields_async;
77 mod await_holding_invalid;
78 mod blocks_in_if_conditions;
79 mod bool_assert_comparison;
80 mod bool_to_int_with_if;
86 mod checked_conversions;
87 mod cognitive_complexity;
92 mod crate_in_macro_def;
96 mod default_instead_of_iter_empty;
97 mod default_numeric_fallback;
98 mod default_union_representation;
102 mod disallowed_macros;
103 mod disallowed_methods;
104 mod disallowed_names;
105 mod disallowed_script_idents;
106 mod disallowed_types;
111 mod else_if_without_else;
114 mod empty_structs_with_brackets;
118 mod equatable_if_let;
122 mod exhaustive_items;
125 mod fallible_impl_from;
127 mod floating_point_arithmetic;
131 mod format_push_string;
134 mod from_raw_with_void_ptr;
135 mod from_str_radix_10;
140 mod if_then_some_else_none;
143 mod implicit_saturating_add;
144 mod implicit_saturating_sub;
145 mod inconsistent_struct_constructor;
146 mod index_refutable_slice;
147 mod indexing_slicing;
150 mod inherent_to_string;
151 mod init_numbered_fields;
152 mod inline_fn_without_body;
153 mod instant_subtraction;
155 mod invalid_upcast_comparisons;
156 mod invalid_utf8_in_unchecked;
157 mod items_after_statements;
158 mod iter_not_returning_iterator;
159 mod large_const_arrays;
160 mod large_enum_variant;
161 mod large_include_file;
162 mod large_stack_arrays;
167 mod literal_representation;
175 mod manual_is_ascii_check;
177 mod manual_non_exhaustive;
178 mod manual_rem_euclid;
180 mod manual_string_new;
191 mod mismatching_type_param_order;
192 mod missing_const_for_fn;
194 mod missing_enforced_import_rename;
196 mod missing_trait_methods;
197 mod mixed_read_write_in_expression;
199 mod multi_assignments;
203 mod mutable_debug_assertion;
205 mod needless_arbitrary_self_type;
207 mod needless_borrowed_ref;
208 mod needless_continue;
209 mod needless_for_each;
210 mod needless_late_init;
211 mod needless_parens_on_range_literals;
212 mod needless_pass_by_value;
213 mod needless_question_mark;
215 mod neg_cmp_op_on_partial_ord;
217 mod new_without_default;
220 mod non_expressive_names;
221 mod non_octal_unix_permissions;
222 mod non_send_fields_in_send_ty;
223 mod nonstandard_macro_braces;
225 mod only_used_in_recursion;
227 mod option_env_unwrap;
228 mod option_if_let_else;
229 mod overflow_check_conditional;
230 mod panic_in_result_fn;
231 mod panic_unimplemented;
232 mod partial_pub_fields;
233 mod partialeq_ne_impl;
234 mod partialeq_to_none;
235 mod pass_by_ref_or_value;
236 mod pattern_type_mismatch;
239 mod ptr_offset_with_cast;
243 mod rc_clone_in_vec_init;
244 mod read_zero_byte_vec;
246 mod redundant_closure_call;
248 mod redundant_field_names;
249 mod redundant_pub_crate;
250 mod redundant_slicing;
251 mod redundant_static_lifetimes;
255 mod return_self_not_must_use;
257 mod same_name_method;
258 mod self_named_constructors;
259 mod semicolon_if_nothing_returned;
262 mod single_char_lifetime_names;
263 mod single_component_path_imports;
264 mod size_of_in_element_count;
265 mod slow_vector_initialization;
266 mod std_instead_of_core;
268 mod strlen_on_c_strings;
269 mod suspicious_operation_groupings;
270 mod suspicious_trait_impl;
271 mod suspicious_xor_used_as_pow;
274 mod tabs_in_doc_comments;
275 mod temporary_assignment;
276 mod to_digit_is_some;
277 mod trailing_empty_array;
281 mod undocumented_unsafe_blocks;
284 mod unit_return_expecting_ord;
287 mod unnecessary_owned_empty_strings;
288 mod unnecessary_self_imports;
289 mod unnecessary_wraps;
290 mod unnested_or_patterns;
291 mod unsafe_removed_from_name;
293 mod unused_io_amount;
299 mod unwrap_in_result;
300 mod upper_case_acronyms;
302 mod useless_conversion;
304 mod vec_init_then_push;
305 mod wildcard_imports;
308 mod zero_sized_map_values;
309 // end lints modules, do not remove this comment, it’s used in `update_lints`
311 use crate::utils::conf::{format_error, TryConf};
312 pub use crate::utils::conf::{lookup_conf_file, Conf};
314 /// Register all pre expansion lints
316 /// Pre-expansion lints run before any macro expansion has happened.
318 /// Note that due to the architecture of the compiler, currently `cfg_attr` attributes on crate
319 /// level (i.e `#![cfg_attr(...)]`) will still be expanded even when using a pre-expansion pass.
321 /// Used in `./src/driver.rs`.
322 pub fn register_pre_expansion_lints(store: &mut rustc_lint::LintStore, sess: &Session, conf: &Conf) {
323 // NOTE: Do not add any more pre-expansion passes. These should be removed eventually.
324 let msrv = Msrv::read(&conf.msrv, sess);
325 let msrv = move || msrv.clone();
327 store.register_pre_expansion_pass(move || Box::new(attrs::EarlyAttributes { msrv: msrv() }));
331 pub fn read_conf(sess: &Session, path: &io::Result<Option<PathBuf>>) -> Conf {
332 let file_name = match path {
333 Ok(Some(path)) => path,
334 Ok(None) => return Conf::default(),
336 sess.struct_err(&format!("error finding Clippy's configuration file: {error}"))
338 return Conf::default();
342 let TryConf { conf, errors, warnings } = utils::conf::read(file_name);
343 // all conf errors are non-fatal, we just use the default conf in case of error
344 for error in errors {
346 "error reading Clippy's configuration file `{}`: {}",
352 for warning in warnings {
353 sess.struct_warn(format!(
354 "error reading Clippy's configuration file `{}`: {}",
356 format_error(warning)
365 struct RegistrationGroups {
368 complexity: Vec<LintId>,
369 correctness: Vec<LintId>,
370 nursery: Vec<LintId>,
371 pedantic: Vec<LintId>,
373 restriction: Vec<LintId>,
375 suspicious: Vec<LintId>,
376 #[cfg(feature = "internal")]
377 internal: Vec<LintId>,
380 impl RegistrationGroups {
382 fn register(self, store: &mut rustc_lint::LintStore) {
383 store.register_group(true, "clippy::all", Some("clippy_all"), self.all);
384 store.register_group(true, "clippy::cargo", Some("clippy_cargo"), self.cargo);
385 store.register_group(true, "clippy::complexity", Some("clippy_complexity"), self.complexity);
386 store.register_group(true, "clippy::correctness", Some("clippy_correctness"), self.correctness);
387 store.register_group(true, "clippy::nursery", Some("clippy_nursery"), self.nursery);
388 store.register_group(true, "clippy::pedantic", Some("clippy_pedantic"), self.pedantic);
389 store.register_group(true, "clippy::perf", Some("clippy_perf"), self.perf);
390 store.register_group(true, "clippy::restriction", Some("clippy_restriction"), self.restriction);
391 store.register_group(true, "clippy::style", Some("clippy_style"), self.style);
392 store.register_group(true, "clippy::suspicious", Some("clippy_suspicious"), self.suspicious);
393 #[cfg(feature = "internal")]
394 store.register_group(true, "clippy::internal", Some("clippy_internal"), self.internal);
398 #[derive(Copy, Clone)]
399 pub(crate) enum LintCategory {
409 #[cfg(feature = "internal")]
412 #[allow(clippy::enum_glob_use)]
416 fn is_all(self) -> bool {
417 matches!(self, Correctness | Suspicious | Style | Complexity | Perf)
420 fn group(self, groups: &mut RegistrationGroups) -> &mut Vec<LintId> {
422 Cargo => &mut groups.cargo,
423 Complexity => &mut groups.complexity,
424 Correctness => &mut groups.correctness,
425 Nursery => &mut groups.nursery,
426 Pedantic => &mut groups.pedantic,
427 Perf => &mut groups.perf,
428 Restriction => &mut groups.restriction,
429 Style => &mut groups.style,
430 Suspicious => &mut groups.suspicious,
431 #[cfg(feature = "internal")]
432 Internal => &mut groups.internal,
437 pub(crate) struct LintInfo {
438 /// Double reference to maintain pointer equality
439 lint: &'static &'static Lint,
440 category: LintCategory,
441 explanation: &'static str,
444 pub fn explain(name: &str) {
445 let target = format!("clippy::{}", name.to_ascii_uppercase());
446 match declared_lints::LINTS.iter().find(|info| info.lint.name == target) {
447 Some(info) => print!("{}", info.explanation),
448 None => println!("unknown lint: {name}"),
452 fn register_categories(store: &mut rustc_lint::LintStore) {
453 let mut groups = RegistrationGroups::default();
455 for LintInfo { lint, category, .. } in declared_lints::LINTS {
456 if category.is_all() {
457 groups.all.push(LintId::of(lint));
460 category.group(&mut groups).push(LintId::of(lint));
463 let lints: Vec<&'static Lint> = declared_lints::LINTS.iter().map(|info| *info.lint).collect();
465 store.register_lints(&lints);
466 groups.register(store);
469 /// Register all lints and lint groups with the rustc plugin registry
471 /// Used in `./src/driver.rs`.
472 #[expect(clippy::too_many_lines)]
473 pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: &Conf) {
474 register_removed_non_tool_lints(store);
475 register_categories(store);
477 include!("lib.deprecated.rs");
479 #[cfg(feature = "internal")]
481 if std::env::var("ENABLE_METADATA_COLLECTION").eq(&Ok("1".to_string())) {
482 store.register_late_pass(|_| Box::new(utils::internal_lints::metadata_collector::MetadataCollector::new()));
487 // all the internal lints
488 #[cfg(feature = "internal")]
490 store.register_early_pass(|| Box::new(utils::internal_lints::clippy_lints_internal::ClippyLintsInternal));
491 store.register_early_pass(|| Box::new(utils::internal_lints::produce_ice::ProduceIce));
492 store.register_late_pass(|_| Box::new(utils::internal_lints::collapsible_calls::CollapsibleCalls));
493 store.register_late_pass(|_| {
494 Box::new(utils::internal_lints::compiler_lint_functions::CompilerLintFunctions::new())
496 store.register_late_pass(|_| Box::new(utils::internal_lints::if_chain_style::IfChainStyle));
497 store.register_late_pass(|_| Box::new(utils::internal_lints::invalid_paths::InvalidPaths));
498 store.register_late_pass(|_| {
499 Box::<utils::internal_lints::interning_defined_symbol::InterningDefinedSymbol>::default()
501 store.register_late_pass(|_| {
502 Box::<utils::internal_lints::lint_without_lint_pass::LintWithoutLintPass>::default()
504 store.register_late_pass(|_| Box::<utils::internal_lints::unnecessary_def_path::UnnecessaryDefPath>::default());
505 store.register_late_pass(|_| Box::new(utils::internal_lints::outer_expn_data_pass::OuterExpnDataPass));
506 store.register_late_pass(|_| Box::new(utils::internal_lints::msrv_attr_impl::MsrvAttrImpl));
509 let arithmetic_side_effects_allowed = conf.arithmetic_side_effects_allowed.clone();
510 store.register_late_pass(move |_| {
511 Box::new(operators::arithmetic_side_effects::ArithmeticSideEffects::new(
512 arithmetic_side_effects_allowed.clone(),
515 store.register_late_pass(|_| Box::new(utils::dump_hir::DumpHir));
516 store.register_late_pass(|_| Box::new(utils::author::Author));
517 let await_holding_invalid_types = conf.await_holding_invalid_types.clone();
518 store.register_late_pass(move |_| {
519 Box::new(await_holding_invalid::AwaitHolding::new(
520 await_holding_invalid_types.clone(),
523 store.register_late_pass(|_| Box::new(serde_api::SerdeApi));
524 let vec_box_size_threshold = conf.vec_box_size_threshold;
525 let type_complexity_threshold = conf.type_complexity_threshold;
526 let avoid_breaking_exported_api = conf.avoid_breaking_exported_api;
527 store.register_late_pass(move |_| {
528 Box::new(types::Types::new(
529 vec_box_size_threshold,
530 type_complexity_threshold,
531 avoid_breaking_exported_api,
534 store.register_late_pass(|_| Box::new(booleans::NonminimalBool));
535 store.register_late_pass(|_| Box::new(enum_clike::UnportableVariant));
536 store.register_late_pass(|_| Box::new(float_literal::FloatLiteral));
537 store.register_late_pass(|_| Box::new(ptr::Ptr));
538 store.register_late_pass(|_| Box::new(needless_bool::NeedlessBool));
539 store.register_late_pass(|_| Box::new(needless_bool::BoolComparison));
540 store.register_late_pass(|_| Box::new(needless_for_each::NeedlessForEach));
541 store.register_late_pass(|_| Box::new(misc::MiscLints));
542 store.register_late_pass(|_| Box::new(eta_reduction::EtaReduction));
543 store.register_late_pass(|_| Box::new(mut_mut::MutMut));
544 store.register_late_pass(|_| Box::new(mut_reference::UnnecessaryMutPassed));
545 store.register_late_pass(|_| Box::new(len_zero::LenZero));
546 store.register_late_pass(|_| Box::new(attrs::Attributes));
547 store.register_late_pass(|_| Box::new(blocks_in_if_conditions::BlocksInIfConditions));
548 store.register_late_pass(|_| Box::new(unicode::Unicode));
549 store.register_late_pass(|_| Box::new(uninit_vec::UninitVec));
550 store.register_late_pass(|_| Box::new(unit_return_expecting_ord::UnitReturnExpectingOrd));
551 store.register_late_pass(|_| Box::new(strings::StringAdd));
552 store.register_late_pass(|_| Box::new(implicit_return::ImplicitReturn));
553 store.register_late_pass(|_| Box::new(implicit_saturating_sub::ImplicitSaturatingSub));
554 store.register_late_pass(|_| Box::new(default_numeric_fallback::DefaultNumericFallback));
555 store.register_late_pass(|_| Box::new(inconsistent_struct_constructor::InconsistentStructConstructor));
556 store.register_late_pass(|_| Box::new(non_octal_unix_permissions::NonOctalUnixPermissions));
557 store.register_early_pass(|| Box::new(unnecessary_self_imports::UnnecessarySelfImports));
559 let msrv = Msrv::read(&conf.msrv, sess);
560 let msrv = move || msrv.clone();
561 let avoid_breaking_exported_api = conf.avoid_breaking_exported_api;
562 let allow_expect_in_tests = conf.allow_expect_in_tests;
563 let allow_unwrap_in_tests = conf.allow_unwrap_in_tests;
564 store.register_late_pass(move |_| Box::new(approx_const::ApproxConstant::new(msrv())));
565 store.register_late_pass(move |_| {
566 Box::new(methods::Methods::new(
567 avoid_breaking_exported_api,
569 allow_expect_in_tests,
570 allow_unwrap_in_tests,
573 store.register_late_pass(move |_| Box::new(matches::Matches::new(msrv())));
574 let matches_for_let_else = conf.matches_for_let_else;
575 store.register_late_pass(move |_| Box::new(manual_let_else::ManualLetElse::new(msrv(), matches_for_let_else)));
576 store.register_early_pass(move || Box::new(manual_non_exhaustive::ManualNonExhaustiveStruct::new(msrv())));
577 store.register_late_pass(move |_| Box::new(manual_non_exhaustive::ManualNonExhaustiveEnum::new(msrv())));
578 store.register_late_pass(move |_| Box::new(manual_strip::ManualStrip::new(msrv())));
579 store.register_early_pass(move || Box::new(redundant_static_lifetimes::RedundantStaticLifetimes::new(msrv())));
580 store.register_early_pass(move || Box::new(redundant_field_names::RedundantFieldNames::new(msrv())));
581 store.register_late_pass(move |_| Box::new(checked_conversions::CheckedConversions::new(msrv())));
582 store.register_late_pass(move |_| Box::new(mem_replace::MemReplace::new(msrv())));
583 store.register_late_pass(move |_| Box::new(ranges::Ranges::new(msrv())));
584 store.register_late_pass(move |_| Box::new(from_over_into::FromOverInto::new(msrv())));
585 store.register_late_pass(move |_| Box::new(use_self::UseSelf::new(msrv())));
586 store.register_late_pass(move |_| Box::new(missing_const_for_fn::MissingConstForFn::new(msrv())));
587 store.register_late_pass(move |_| Box::new(needless_question_mark::NeedlessQuestionMark));
588 store.register_late_pass(move |_| Box::new(casts::Casts::new(msrv())));
589 store.register_early_pass(move || Box::new(unnested_or_patterns::UnnestedOrPatterns::new(msrv())));
590 store.register_late_pass(|_| Box::new(size_of_in_element_count::SizeOfInElementCount));
591 store.register_late_pass(|_| Box::new(same_name_method::SameNameMethod));
592 let max_suggested_slice_pattern_length = conf.max_suggested_slice_pattern_length;
593 store.register_late_pass(move |_| {
594 Box::new(index_refutable_slice::IndexRefutableSlice::new(
595 max_suggested_slice_pattern_length,
599 store.register_late_pass(|_| Box::<shadow::Shadow>::default());
600 store.register_late_pass(|_| Box::new(unit_types::UnitTypes));
601 store.register_late_pass(|_| Box::new(loops::Loops));
602 store.register_late_pass(|_| Box::<main_recursion::MainRecursion>::default());
603 store.register_late_pass(|_| Box::new(lifetimes::Lifetimes));
604 store.register_late_pass(|_| Box::new(entry::HashMapPass));
605 store.register_late_pass(|_| Box::new(minmax::MinMaxPass));
606 store.register_late_pass(|_| Box::new(zero_div_zero::ZeroDiv));
607 store.register_late_pass(|_| Box::new(mutex_atomic::Mutex));
608 store.register_late_pass(|_| Box::new(needless_update::NeedlessUpdate));
609 store.register_late_pass(|_| Box::new(needless_borrowed_ref::NeedlessBorrowedRef));
610 store.register_late_pass(|_| Box::new(borrow_deref_ref::BorrowDerefRef));
611 store.register_late_pass(|_| Box::new(no_effect::NoEffect));
612 store.register_late_pass(|_| Box::new(temporary_assignment::TemporaryAssignment));
613 store.register_late_pass(move |_| Box::new(transmute::Transmute::new(msrv())));
614 let cognitive_complexity_threshold = conf.cognitive_complexity_threshold;
615 store.register_late_pass(move |_| {
616 Box::new(cognitive_complexity::CognitiveComplexity::new(
617 cognitive_complexity_threshold,
620 let too_large_for_stack = conf.too_large_for_stack;
621 store.register_late_pass(move |_| Box::new(escape::BoxedLocal { too_large_for_stack }));
622 store.register_late_pass(move |_| Box::new(vec::UselessVec { too_large_for_stack }));
623 store.register_late_pass(|_| Box::new(panic_unimplemented::PanicUnimplemented));
624 store.register_late_pass(|_| Box::new(strings::StringLitAsBytes));
625 store.register_late_pass(|_| Box::new(derive::Derive));
626 store.register_late_pass(|_| Box::new(derivable_impls::DerivableImpls));
627 store.register_late_pass(|_| Box::new(drop_forget_ref::DropForgetRef));
628 store.register_late_pass(|_| Box::new(empty_enum::EmptyEnum));
629 store.register_late_pass(|_| Box::new(invalid_upcast_comparisons::InvalidUpcastComparisons));
630 store.register_late_pass(|_| Box::new(regex::Regex));
631 store.register_late_pass(|_| Box::new(copies::CopyAndPaste));
632 store.register_late_pass(|_| Box::new(copy_iterator::CopyIterator));
633 store.register_late_pass(|_| Box::new(format::UselessFormat));
634 store.register_late_pass(|_| Box::new(swap::Swap));
635 store.register_late_pass(|_| Box::new(overflow_check_conditional::OverflowCheckConditional));
636 store.register_late_pass(|_| Box::<new_without_default::NewWithoutDefault>::default());
637 let disallowed_names = conf.disallowed_names.iter().cloned().collect::<FxHashSet<_>>();
638 store.register_late_pass(move |_| Box::new(disallowed_names::DisallowedNames::new(disallowed_names.clone())));
639 let too_many_arguments_threshold = conf.too_many_arguments_threshold;
640 let too_many_lines_threshold = conf.too_many_lines_threshold;
641 let large_error_threshold = conf.large_error_threshold;
642 store.register_late_pass(move |_| {
643 Box::new(functions::Functions::new(
644 too_many_arguments_threshold,
645 too_many_lines_threshold,
646 large_error_threshold,
649 let doc_valid_idents = conf.doc_valid_idents.iter().cloned().collect::<FxHashSet<_>>();
650 store.register_late_pass(move |_| Box::new(doc::DocMarkdown::new(doc_valid_idents.clone())));
651 store.register_late_pass(|_| Box::new(neg_multiply::NegMultiply));
652 store.register_late_pass(|_| Box::new(mem_forget::MemForget));
653 store.register_late_pass(|_| Box::new(let_if_seq::LetIfSeq));
654 store.register_late_pass(|_| Box::new(mixed_read_write_in_expression::EvalOrderDependence));
655 store.register_late_pass(|_| Box::new(missing_doc::MissingDoc::new()));
656 store.register_late_pass(|_| Box::new(missing_inline::MissingInline));
657 store.register_late_pass(move |_| Box::new(exhaustive_items::ExhaustiveItems));
658 store.register_late_pass(|_| Box::new(match_result_ok::MatchResultOk));
659 store.register_late_pass(|_| Box::new(partialeq_ne_impl::PartialEqNeImpl));
660 store.register_late_pass(|_| Box::new(unused_io_amount::UnusedIoAmount));
661 let enum_variant_size_threshold = conf.enum_variant_size_threshold;
662 store.register_late_pass(move |_| Box::new(large_enum_variant::LargeEnumVariant::new(enum_variant_size_threshold)));
663 store.register_late_pass(|_| Box::new(explicit_write::ExplicitWrite));
664 store.register_late_pass(|_| Box::new(needless_pass_by_value::NeedlessPassByValue));
665 let pass_by_ref_or_value = pass_by_ref_or_value::PassByRefOrValue::new(
666 conf.trivial_copy_size_limit,
667 conf.pass_by_value_size_limit,
668 conf.avoid_breaking_exported_api,
671 store.register_late_pass(move |_| Box::new(pass_by_ref_or_value));
672 store.register_late_pass(|_| Box::new(ref_option_ref::RefOptionRef));
673 store.register_late_pass(|_| Box::new(infinite_iter::InfiniteIter));
674 store.register_late_pass(|_| Box::new(inline_fn_without_body::InlineFnWithoutBody));
675 store.register_late_pass(|_| Box::<useless_conversion::UselessConversion>::default());
676 store.register_late_pass(|_| Box::new(implicit_hasher::ImplicitHasher));
677 store.register_late_pass(|_| Box::new(fallible_impl_from::FallibleImplFrom));
678 store.register_late_pass(|_| Box::new(question_mark::QuestionMark));
679 store.register_early_pass(|| Box::new(suspicious_operation_groupings::SuspiciousOperationGroupings));
680 store.register_late_pass(|_| Box::new(suspicious_trait_impl::SuspiciousImpl));
681 store.register_late_pass(|_| Box::new(map_unit_fn::MapUnit));
682 store.register_late_pass(|_| Box::new(inherent_impl::MultipleInherentImpl));
683 store.register_late_pass(|_| Box::new(neg_cmp_op_on_partial_ord::NoNegCompOpForPartialOrd));
684 store.register_late_pass(|_| Box::new(unwrap::Unwrap));
685 store.register_late_pass(|_| Box::new(indexing_slicing::IndexingSlicing));
686 store.register_late_pass(|_| Box::new(non_copy_const::NonCopyConst));
687 store.register_late_pass(|_| Box::new(ptr_offset_with_cast::PtrOffsetWithCast));
688 store.register_late_pass(|_| Box::new(redundant_clone::RedundantClone));
689 store.register_late_pass(|_| Box::new(slow_vector_initialization::SlowVectorInit));
690 store.register_late_pass(move |_| Box::new(unnecessary_wraps::UnnecessaryWraps::new(avoid_breaking_exported_api)));
691 store.register_late_pass(|_| Box::new(assertions_on_constants::AssertionsOnConstants));
692 store.register_late_pass(|_| Box::new(assertions_on_result_states::AssertionsOnResultStates));
693 store.register_late_pass(|_| Box::new(inherent_to_string::InherentToString));
694 let max_trait_bounds = conf.max_trait_bounds;
695 store.register_late_pass(move |_| Box::new(trait_bounds::TraitBounds::new(max_trait_bounds)));
696 store.register_late_pass(|_| Box::new(comparison_chain::ComparisonChain));
697 let ignore_interior_mutability = conf.ignore_interior_mutability.clone();
698 store.register_late_pass(move |_| Box::new(mut_key::MutableKeyType::new(ignore_interior_mutability.clone())));
699 store.register_early_pass(|| Box::new(reference::DerefAddrOf));
700 store.register_early_pass(|| Box::new(double_parens::DoubleParens));
701 store.register_late_pass(|_| Box::new(format_impl::FormatImpl::new()));
702 store.register_early_pass(|| Box::new(unsafe_removed_from_name::UnsafeNameRemoval));
703 store.register_early_pass(|| Box::new(else_if_without_else::ElseIfWithoutElse));
704 store.register_early_pass(|| Box::new(int_plus_one::IntPlusOne));
705 store.register_early_pass(|| Box::new(formatting::Formatting));
706 store.register_early_pass(|| Box::new(misc_early::MiscEarlyLints));
707 store.register_early_pass(|| Box::new(redundant_closure_call::RedundantClosureCall));
708 store.register_late_pass(|_| Box::new(redundant_closure_call::RedundantClosureCall));
709 store.register_early_pass(|| Box::new(unused_unit::UnusedUnit));
710 store.register_late_pass(|_| Box::new(returns::Return));
711 store.register_early_pass(|| Box::new(collapsible_if::CollapsibleIf));
712 store.register_early_pass(|| Box::new(items_after_statements::ItemsAfterStatements));
713 store.register_early_pass(|| Box::new(precedence::Precedence));
714 store.register_late_pass(|_| Box::new(needless_parens_on_range_literals::NeedlessParensOnRangeLiterals));
715 store.register_early_pass(|| Box::new(needless_continue::NeedlessContinue));
716 store.register_early_pass(|| Box::new(redundant_else::RedundantElse));
717 store.register_late_pass(|_| Box::new(create_dir::CreateDir));
718 store.register_early_pass(|| Box::new(needless_arbitrary_self_type::NeedlessArbitrarySelfType));
719 let literal_representation_lint_fraction_readability = conf.unreadable_literal_lint_fractions;
720 store.register_early_pass(move || {
721 Box::new(literal_representation::LiteralDigitGrouping::new(
722 literal_representation_lint_fraction_readability,
725 let literal_representation_threshold = conf.literal_representation_threshold;
726 store.register_early_pass(move || {
727 Box::new(literal_representation::DecimalLiteralRepresentation::new(
728 literal_representation_threshold,
731 let enum_variant_name_threshold = conf.enum_variant_name_threshold;
732 store.register_late_pass(move |_| {
733 Box::new(enum_variants::EnumVariantNames::new(
734 enum_variant_name_threshold,
735 avoid_breaking_exported_api,
738 store.register_early_pass(|| Box::new(tabs_in_doc_comments::TabsInDocComments));
739 let upper_case_acronyms_aggressive = conf.upper_case_acronyms_aggressive;
740 store.register_late_pass(move |_| {
741 Box::new(upper_case_acronyms::UpperCaseAcronyms::new(
742 avoid_breaking_exported_api,
743 upper_case_acronyms_aggressive,
746 store.register_late_pass(|_| Box::<default::Default>::default());
747 store.register_late_pass(move |_| Box::new(unused_self::UnusedSelf::new(avoid_breaking_exported_api)));
748 store.register_late_pass(|_| Box::new(mutable_debug_assertion::DebugAssertWithMutCall));
749 store.register_late_pass(|_| Box::new(exit::Exit));
750 store.register_late_pass(|_| Box::new(to_digit_is_some::ToDigitIsSome));
751 let array_size_threshold = conf.array_size_threshold;
752 store.register_late_pass(move |_| Box::new(large_stack_arrays::LargeStackArrays::new(array_size_threshold)));
753 store.register_late_pass(move |_| Box::new(large_const_arrays::LargeConstArrays::new(array_size_threshold)));
754 store.register_late_pass(|_| Box::new(floating_point_arithmetic::FloatingPointArithmetic));
755 store.register_early_pass(|| Box::new(as_conversions::AsConversions));
756 store.register_late_pass(|_| Box::new(let_underscore::LetUnderscore));
757 store.register_early_pass(|| Box::<single_component_path_imports::SingleComponentPathImports>::default());
758 let max_fn_params_bools = conf.max_fn_params_bools;
759 let max_struct_bools = conf.max_struct_bools;
760 store.register_late_pass(move |_| {
761 Box::new(excessive_bools::ExcessiveBools::new(
766 store.register_early_pass(|| Box::new(option_env_unwrap::OptionEnvUnwrap));
767 let warn_on_all_wildcard_imports = conf.warn_on_all_wildcard_imports;
768 store.register_late_pass(move |_| Box::new(wildcard_imports::WildcardImports::new(warn_on_all_wildcard_imports)));
769 store.register_late_pass(|_| Box::<redundant_pub_crate::RedundantPubCrate>::default());
770 store.register_late_pass(|_| Box::new(unnamed_address::UnnamedAddress));
771 store.register_late_pass(move |_| Box::new(dereference::Dereferencing::new(msrv())));
772 store.register_late_pass(|_| Box::new(option_if_let_else::OptionIfLetElse));
773 store.register_late_pass(|_| Box::new(future_not_send::FutureNotSend));
774 store.register_late_pass(|_| Box::new(if_let_mutex::IfLetMutex));
775 store.register_late_pass(|_| Box::new(if_not_else::IfNotElse));
776 store.register_late_pass(|_| Box::new(equatable_if_let::PatternEquality));
777 store.register_late_pass(|_| Box::new(manual_async_fn::ManualAsyncFn));
778 store.register_late_pass(|_| Box::new(panic_in_result_fn::PanicInResultFn));
779 let single_char_binding_names_threshold = conf.single_char_binding_names_threshold;
780 store.register_early_pass(move || {
781 Box::new(non_expressive_names::NonExpressiveNames {
782 single_char_binding_names_threshold,
785 let macro_matcher = conf.standard_macro_braces.iter().cloned().collect::<FxHashSet<_>>();
786 store.register_early_pass(move || Box::new(nonstandard_macro_braces::MacroBraces::new(¯o_matcher)));
787 store.register_late_pass(|_| Box::<macro_use::MacroUseImports>::default());
788 store.register_late_pass(|_| Box::new(pattern_type_mismatch::PatternTypeMismatch));
789 store.register_late_pass(|_| Box::new(unwrap_in_result::UnwrapInResult));
790 store.register_late_pass(|_| Box::new(semicolon_if_nothing_returned::SemicolonIfNothingReturned));
791 store.register_late_pass(|_| Box::new(async_yields_async::AsyncYieldsAsync));
792 let disallowed_macros = conf.disallowed_macros.clone();
793 store.register_late_pass(move |_| Box::new(disallowed_macros::DisallowedMacros::new(disallowed_macros.clone())));
794 let disallowed_methods = conf.disallowed_methods.clone();
795 store.register_late_pass(move |_| Box::new(disallowed_methods::DisallowedMethods::new(disallowed_methods.clone())));
796 store.register_early_pass(|| Box::new(asm_syntax::InlineAsmX86AttSyntax));
797 store.register_early_pass(|| Box::new(asm_syntax::InlineAsmX86IntelSyntax));
798 store.register_late_pass(|_| Box::new(empty_drop::EmptyDrop));
799 store.register_late_pass(|_| Box::new(strings::StrToString));
800 store.register_late_pass(|_| Box::new(strings::StringToString));
801 store.register_late_pass(|_| Box::new(zero_sized_map_values::ZeroSizedMapValues));
802 store.register_late_pass(|_| Box::<vec_init_then_push::VecInitThenPush>::default());
803 store.register_late_pass(|_| Box::new(redundant_slicing::RedundantSlicing));
804 store.register_late_pass(|_| Box::new(from_str_radix_10::FromStrRadix10));
805 store.register_late_pass(move |_| Box::new(if_then_some_else_none::IfThenSomeElseNone::new(msrv())));
806 store.register_late_pass(|_| Box::new(bool_assert_comparison::BoolAssertComparison));
807 store.register_early_pass(move || Box::new(module_style::ModStyle));
808 store.register_late_pass(|_| Box::new(unused_async::UnusedAsync));
809 let disallowed_types = conf.disallowed_types.clone();
810 store.register_late_pass(move |_| Box::new(disallowed_types::DisallowedTypes::new(disallowed_types.clone())));
811 let import_renames = conf.enforced_import_renames.clone();
812 store.register_late_pass(move |_| {
813 Box::new(missing_enforced_import_rename::ImportRename::new(
814 import_renames.clone(),
817 let scripts = conf.allowed_scripts.clone();
818 store.register_early_pass(move || Box::new(disallowed_script_idents::DisallowedScriptIdents::new(&scripts)));
819 store.register_late_pass(|_| Box::new(strlen_on_c_strings::StrlenOnCStrings));
820 store.register_late_pass(move |_| Box::new(self_named_constructors::SelfNamedConstructors));
821 store.register_late_pass(move |_| Box::new(iter_not_returning_iterator::IterNotReturningIterator));
822 store.register_late_pass(move |_| Box::new(manual_assert::ManualAssert));
823 let enable_raw_pointer_heuristic_for_send = conf.enable_raw_pointer_heuristic_for_send;
824 store.register_late_pass(move |_| {
825 Box::new(non_send_fields_in_send_ty::NonSendFieldInSendTy::new(
826 enable_raw_pointer_heuristic_for_send,
829 store.register_late_pass(move |_| Box::new(undocumented_unsafe_blocks::UndocumentedUnsafeBlocks));
830 let allow_mixed_uninlined = conf.allow_mixed_uninlined_format_args;
831 store.register_late_pass(move |_| Box::new(format_args::FormatArgs::new(msrv(), allow_mixed_uninlined)));
832 store.register_late_pass(|_| Box::new(trailing_empty_array::TrailingEmptyArray));
833 store.register_early_pass(|| Box::new(octal_escapes::OctalEscapes));
834 store.register_late_pass(|_| Box::new(needless_late_init::NeedlessLateInit));
835 store.register_late_pass(|_| Box::new(return_self_not_must_use::ReturnSelfNotMustUse));
836 store.register_late_pass(|_| Box::new(init_numbered_fields::NumberedFields));
837 store.register_early_pass(|| Box::new(single_char_lifetime_names::SingleCharLifetimeNames));
838 store.register_late_pass(move |_| Box::new(manual_bits::ManualBits::new(msrv())));
839 store.register_late_pass(|_| Box::new(default_union_representation::DefaultUnionRepresentation));
840 store.register_late_pass(|_| Box::<only_used_in_recursion::OnlyUsedInRecursion>::default());
841 let allow_dbg_in_tests = conf.allow_dbg_in_tests;
842 store.register_late_pass(move |_| Box::new(dbg_macro::DbgMacro::new(allow_dbg_in_tests)));
843 let allow_print_in_tests = conf.allow_print_in_tests;
844 store.register_late_pass(move |_| Box::new(write::Write::new(allow_print_in_tests)));
845 let cargo_ignore_publish = conf.cargo_ignore_publish;
846 store.register_late_pass(move |_| {
847 Box::new(cargo::Cargo {
848 ignore_publish: cargo_ignore_publish,
851 store.register_early_pass(|| Box::new(crate_in_macro_def::CrateInMacroDef));
852 store.register_early_pass(|| Box::new(empty_structs_with_brackets::EmptyStructsWithBrackets));
853 store.register_late_pass(|_| Box::new(unnecessary_owned_empty_strings::UnnecessaryOwnedEmptyStrings));
854 store.register_early_pass(|| Box::new(pub_use::PubUse));
855 store.register_late_pass(|_| Box::new(format_push_string::FormatPushString));
856 let max_include_file_size = conf.max_include_file_size;
857 store.register_late_pass(move |_| Box::new(large_include_file::LargeIncludeFile::new(max_include_file_size)));
858 store.register_late_pass(|_| Box::new(strings::TrimSplitWhitespace));
859 store.register_late_pass(|_| Box::new(rc_clone_in_vec_init::RcCloneInVecInit));
860 store.register_early_pass(|| Box::<duplicate_mod::DuplicateMod>::default());
861 store.register_early_pass(|| Box::new(unused_rounding::UnusedRounding));
862 store.register_early_pass(move || Box::new(almost_complete_letter_range::AlmostCompleteLetterRange::new(msrv())));
863 store.register_late_pass(|_| Box::new(swap_ptr_to_ref::SwapPtrToRef));
864 store.register_late_pass(|_| Box::new(mismatching_type_param_order::TypeParamMismatch));
865 store.register_late_pass(|_| Box::new(read_zero_byte_vec::ReadZeroByteVec));
866 store.register_late_pass(|_| Box::new(default_instead_of_iter_empty::DefaultIterEmpty));
867 store.register_late_pass(move |_| Box::new(manual_rem_euclid::ManualRemEuclid::new(msrv())));
868 store.register_late_pass(move |_| Box::new(manual_retain::ManualRetain::new(msrv())));
869 let verbose_bit_mask_threshold = conf.verbose_bit_mask_threshold;
870 store.register_late_pass(move |_| Box::new(operators::Operators::new(verbose_bit_mask_threshold)));
871 store.register_late_pass(|_| Box::new(invalid_utf8_in_unchecked::InvalidUtf8InUnchecked));
872 store.register_late_pass(|_| Box::<std_instead_of_core::StdReexports>::default());
873 store.register_late_pass(move |_| Box::new(instant_subtraction::InstantSubtraction::new(msrv())));
874 store.register_late_pass(|_| Box::new(partialeq_to_none::PartialeqToNone));
875 store.register_late_pass(move |_| Box::new(manual_clamp::ManualClamp::new(msrv())));
876 store.register_late_pass(|_| Box::new(manual_string_new::ManualStringNew));
877 store.register_late_pass(|_| Box::new(unused_peekable::UnusedPeekable));
878 store.register_early_pass(|| Box::new(multi_assignments::MultiAssignments));
879 store.register_late_pass(|_| Box::new(bool_to_int_with_if::BoolToIntWithIf));
880 store.register_late_pass(|_| Box::new(box_default::BoxDefault));
881 store.register_late_pass(|_| Box::new(implicit_saturating_add::ImplicitSaturatingAdd));
882 store.register_early_pass(|| Box::new(partial_pub_fields::PartialPubFields));
883 store.register_late_pass(|_| Box::new(missing_trait_methods::MissingTraitMethods));
884 store.register_late_pass(|_| Box::new(from_raw_with_void_ptr::FromRawWithVoidPtr));
885 store.register_late_pass(|_| Box::new(suspicious_xor_used_as_pow::ConfusingXorAndPow));
886 store.register_late_pass(move |_| Box::new(manual_is_ascii_check::ManualIsAsciiCheck::new(msrv())));
887 // add lints here, do not remove this comment, it's used in `new_lint`
891 fn register_removed_non_tool_lints(store: &mut rustc_lint::LintStore) {
892 store.register_removed(
894 "`assert!()` will be more flexible with RFC 2011",
896 store.register_removed(
898 "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice",
900 store.register_removed(
901 "range_step_by_zero",
902 "`iterator.step_by(0)` panics nowadays",
904 store.register_removed(
906 "`Vec::as_slice` has been stabilized in 1.7",
908 store.register_removed(
909 "unstable_as_mut_slice",
910 "`Vec::as_mut_slice` has been stabilized in 1.7",
912 store.register_removed(
913 "misaligned_transmute",
914 "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",
916 store.register_removed(
918 "using compound assignment operators (e.g., `+=`) is harmless",
920 store.register_removed(
921 "if_let_redundant_pattern_matching",
922 "this lint has been changed to redundant_pattern_matching",
924 store.register_removed(
925 "unsafe_vector_initialization",
926 "the replacement suggested by this lint had substantially different behavior",
928 store.register_removed(
929 "reverse_range_loop",
930 "this lint is now included in reversed_empty_ranges",
934 /// Register renamed lints.
936 /// Used in `./src/driver.rs`.
937 pub fn register_renamed(ls: &mut rustc_lint::LintStore) {
938 for (old_name, new_name) in renamed_lints::RENAMED_LINTS {
939 ls.register_renamed(old_name, new_name);
943 // only exists to let the dogfood integration test works.
944 // Don't run clippy as an executable directly
947 panic!("Please use the cargo-clippy executable");