rustc_lint/
lib.rs

1//! Lints, aka compiler warnings.
2//!
3//! A 'lint' check is a kind of miscellaneous constraint that a user _might_
4//! want to enforce, but might reasonably want to permit as well, on a
5//! module-by-module basis. They contrast with static constraints enforced by
6//! other phases of the compiler, which are generally required to hold in order
7//! to compile the program at all.
8//!
9//! Most lints can be written as [`LintPass`] instances. These run after
10//! all other analyses. The `LintPass`es built into rustc are defined
11//! within [rustc_session::lint::builtin],
12//! which has further comments on how to add such a lint.
13//! rustc can also load external lint plugins, as is done for Clippy.
14//!
15//! See <https://rustc-dev-guide.rust-lang.org/diagnostics.html> for an
16//! overview of how lints are implemented.
17//!
18//! ## Note
19//!
20//! This API is completely unstable and subject to change.
21
22// tidy-alphabetical-start
23#![allow(internal_features)]
24#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
25#![doc(rust_logo)]
26#![feature(array_windows)]
27#![feature(assert_matches)]
28#![feature(box_patterns)]
29#![feature(if_let_guard)]
30#![feature(iter_order_by)]
31#![feature(rustc_attrs)]
32#![feature(rustdoc_internals)]
33#![feature(try_blocks)]
34// tidy-alphabetical-end
35
36mod async_closures;
37mod async_fn_in_trait;
38mod autorefs;
39pub mod builtin;
40mod context;
41mod dangling;
42mod default_could_be_derived;
43mod deref_into_dyn_supertrait;
44mod drop_forget_useless;
45mod early;
46mod enum_intrinsics_non_enums;
47mod errors;
48mod expect;
49mod for_loops_over_fallibles;
50mod foreign_modules;
51mod if_let_rescope;
52mod impl_trait_overcaptures;
53mod internal;
54mod invalid_from_utf8;
55mod late;
56mod let_underscore;
57mod levels;
58pub mod lifetime_syntax;
59mod lints;
60mod macro_expr_fragment_specifier_2024_migration;
61mod map_unit_fn;
62mod multiple_supertrait_upcastable;
63mod non_ascii_idents;
64mod non_fmt_panic;
65mod non_local_def;
66mod nonstandard_style;
67mod noop_method_call;
68mod opaque_hidden_inferred_bound;
69mod pass_by_value;
70mod passes;
71mod precedence;
72mod ptr_nulls;
73mod redundant_semicolon;
74mod reference_casting;
75mod shadowed_into_iter;
76mod static_mut_refs;
77mod traits;
78mod transmute;
79mod types;
80mod unit_bindings;
81mod unqualified_local_imports;
82mod unused;
83mod utils;
84
85use async_closures::AsyncClosureUsage;
86use async_fn_in_trait::AsyncFnInTrait;
87use autorefs::*;
88use builtin::*;
89use dangling::*;
90use default_could_be_derived::DefaultCouldBeDerived;
91use deref_into_dyn_supertrait::*;
92use drop_forget_useless::*;
93use enum_intrinsics_non_enums::EnumIntrinsicsNonEnums;
94use for_loops_over_fallibles::*;
95use if_let_rescope::IfLetRescope;
96use impl_trait_overcaptures::ImplTraitOvercaptures;
97use internal::*;
98use invalid_from_utf8::*;
99use let_underscore::*;
100use lifetime_syntax::*;
101use macro_expr_fragment_specifier_2024_migration::*;
102use map_unit_fn::*;
103use multiple_supertrait_upcastable::*;
104use non_ascii_idents::*;
105use non_fmt_panic::NonPanicFmt;
106use non_local_def::*;
107use nonstandard_style::*;
108use noop_method_call::*;
109use opaque_hidden_inferred_bound::*;
110use pass_by_value::*;
111use precedence::*;
112use ptr_nulls::*;
113use redundant_semicolon::*;
114use reference_casting::*;
115use rustc_hir::def_id::LocalModDefId;
116use rustc_middle::query::Providers;
117use rustc_middle::ty::TyCtxt;
118use shadowed_into_iter::ShadowedIntoIter;
119pub use shadowed_into_iter::{ARRAY_INTO_ITER, BOXED_SLICE_INTO_ITER};
120use static_mut_refs::*;
121use traits::*;
122use transmute::CheckTransmutes;
123use types::*;
124use unit_bindings::*;
125use unqualified_local_imports::*;
126use unused::*;
127
128#[rustfmt::skip]
129pub use builtin::{MissingDoc, SoftLints};
130pub use context::{CheckLintNameResult, EarlyContext, LateContext, LintContext, LintStore};
131pub use early::diagnostics::decorate_builtin_lint;
132pub use early::{EarlyCheckNode, check_ast_node};
133pub use late::{check_crate, late_lint_mod, unerased_lint_store};
134pub use levels::LintLevelsBuilder;
135pub use passes::{EarlyLintPass, LateLintPass};
136pub use rustc_errors::BufferedEarlyLint;
137pub use rustc_session::lint::Level::{self, *};
138pub use rustc_session::lint::{FutureIncompatibleInfo, Lint, LintId, LintPass, LintVec};
139
140rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
141
142pub fn provide(providers: &mut Providers) {
143    levels::provide(providers);
144    expect::provide(providers);
145    foreign_modules::provide(providers);
146    *providers = Providers { lint_mod, ..*providers };
147}
148
149fn lint_mod(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) {
150    late_lint_mod(tcx, module_def_id, BuiltinCombinedModuleLateLintPass::new());
151}
152
153early_lint_methods!(
154    declare_combined_early_lint_pass,
155    [
156        pub BuiltinCombinedPreExpansionLintPass,
157        [
158            KeywordIdents: KeywordIdents,
159        ]
160    ]
161);
162
163early_lint_methods!(
164    declare_combined_early_lint_pass,
165    [
166        pub BuiltinCombinedEarlyLintPass,
167        [
168            UnusedParens: UnusedParens::default(),
169            UnusedBraces: UnusedBraces,
170            UnusedImportBraces: UnusedImportBraces,
171            UnsafeCode: UnsafeCode,
172            SpecialModuleName: SpecialModuleName,
173            AnonymousParameters: AnonymousParameters,
174            EllipsisInclusiveRangePatterns: EllipsisInclusiveRangePatterns::default(),
175            NonCamelCaseTypes: NonCamelCaseTypes,
176            WhileTrue: WhileTrue,
177            NonAsciiIdents: NonAsciiIdents,
178            IncompleteInternalFeatures: IncompleteInternalFeatures,
179            RedundantSemicolons: RedundantSemicolons,
180            UnusedDocComment: UnusedDocComment,
181            Expr2024: Expr2024,
182            Precedence: Precedence,
183            DoubleNegations: DoubleNegations,
184        ]
185    ]
186);
187
188late_lint_methods!(
189    declare_combined_late_lint_pass,
190    [
191        BuiltinCombinedModuleLateLintPass,
192        [
193            ForLoopsOverFallibles: ForLoopsOverFallibles,
194            DefaultCouldBeDerived: DefaultCouldBeDerived,
195            DerefIntoDynSupertrait: DerefIntoDynSupertrait,
196            DropForgetUseless: DropForgetUseless,
197            ImproperCTypesLint: ImproperCTypesLint,
198            InvalidFromUtf8: InvalidFromUtf8,
199            VariantSizeDifferences: VariantSizeDifferences,
200            PathStatements: PathStatements,
201            LetUnderscore: LetUnderscore,
202            InvalidReferenceCasting: InvalidReferenceCasting,
203            ImplicitAutorefs: ImplicitAutorefs,
204            // Depends on referenced function signatures in expressions
205            UnusedResults: UnusedResults,
206            UnitBindings: UnitBindings,
207            NonUpperCaseGlobals: NonUpperCaseGlobals,
208            NonShorthandFieldPatterns: NonShorthandFieldPatterns,
209            UnusedAllocation: UnusedAllocation,
210            // Depends on types used in type definitions
211            MissingCopyImplementations: MissingCopyImplementations,
212            // Depends on referenced function signatures in expressions
213            PtrNullChecks: PtrNullChecks,
214            MutableTransmutes: MutableTransmutes,
215            TypeAliasBounds: TypeAliasBounds,
216            TrivialConstraints: TrivialConstraints,
217            TypeLimits: TypeLimits::new(),
218            NonSnakeCase: NonSnakeCase,
219            InvalidNoMangleItems: InvalidNoMangleItems,
220            // Depends on effective visibilities
221            UnreachablePub: UnreachablePub,
222            ExplicitOutlivesRequirements: ExplicitOutlivesRequirements,
223            InvalidValue: InvalidValue,
224            DerefNullPtr: DerefNullPtr,
225            UnstableFeatures: UnstableFeatures,
226            UngatedAsyncFnTrackCaller: UngatedAsyncFnTrackCaller,
227            ShadowedIntoIter: ShadowedIntoIter,
228            DropTraitConstraints: DropTraitConstraints,
229            DanglingPointers: DanglingPointers,
230            NonPanicFmt: NonPanicFmt,
231            NoopMethodCall: NoopMethodCall,
232            EnumIntrinsicsNonEnums: EnumIntrinsicsNonEnums,
233            InvalidAtomicOrdering: InvalidAtomicOrdering,
234            AsmLabels: AsmLabels,
235            OpaqueHiddenInferredBound: OpaqueHiddenInferredBound,
236            MultipleSupertraitUpcastable: MultipleSupertraitUpcastable,
237            MapUnitFn: MapUnitFn,
238            MissingDebugImplementations: MissingDebugImplementations,
239            MissingDoc: MissingDoc,
240            AsyncClosureUsage: AsyncClosureUsage,
241            AsyncFnInTrait: AsyncFnInTrait,
242            NonLocalDefinitions: NonLocalDefinitions::default(),
243            ImplTraitOvercaptures: ImplTraitOvercaptures,
244            IfLetRescope: IfLetRescope::default(),
245            StaticMutRefs: StaticMutRefs,
246            UnqualifiedLocalImports: UnqualifiedLocalImports,
247            CheckTransmutes: CheckTransmutes,
248            LifetimeSyntax: LifetimeSyntax,
249        ]
250    ]
251);
252
253pub fn new_lint_store(internal_lints: bool) -> LintStore {
254    let mut lint_store = LintStore::new();
255
256    register_builtins(&mut lint_store);
257    if internal_lints {
258        register_internals(&mut lint_store);
259    }
260
261    lint_store
262}
263
264/// Tell the `LintStore` about all the built-in lints (the ones
265/// defined in this crate and the ones defined in
266/// `rustc_session::lint::builtin`).
267fn register_builtins(store: &mut LintStore) {
268    macro_rules! add_lint_group {
269        ($name:expr, $($lint:ident),*) => (
270            store.register_group(false, $name, None, vec![$(LintId::of($lint)),*]);
271        )
272    }
273
274    store.register_lints(&BuiltinCombinedPreExpansionLintPass::get_lints());
275    store.register_lints(&BuiltinCombinedEarlyLintPass::get_lints());
276    store.register_lints(&BuiltinCombinedModuleLateLintPass::get_lints());
277    store.register_lints(&foreign_modules::get_lints());
278    store.register_lints(&HardwiredLints::lint_vec());
279
280    add_lint_group!(
281        "nonstandard_style",
282        NON_CAMEL_CASE_TYPES,
283        NON_SNAKE_CASE,
284        NON_UPPER_CASE_GLOBALS
285    );
286
287    add_lint_group!(
288        "unused",
289        UNUSED_IMPORTS,
290        UNUSED_VARIABLES,
291        UNUSED_ASSIGNMENTS,
292        DEAD_CODE,
293        UNUSED_MUT,
294        UNREACHABLE_CODE,
295        UNREACHABLE_PATTERNS,
296        UNUSED_MUST_USE,
297        UNUSED_UNSAFE,
298        PATH_STATEMENTS,
299        UNUSED_ATTRIBUTES,
300        UNUSED_MACROS,
301        UNUSED_MACRO_RULES,
302        UNUSED_ALLOCATION,
303        UNUSED_DOC_COMMENTS,
304        UNUSED_EXTERN_CRATES,
305        UNUSED_FEATURES,
306        UNUSED_LABELS,
307        UNUSED_PARENS,
308        UNUSED_BRACES,
309        REDUNDANT_SEMICOLONS,
310        MAP_UNIT_FN
311    );
312
313    add_lint_group!("let_underscore", LET_UNDERSCORE_DROP, LET_UNDERSCORE_LOCK);
314
315    add_lint_group!(
316        "rust_2018_idioms",
317        BARE_TRAIT_OBJECTS,
318        UNUSED_EXTERN_CRATES,
319        ELLIPSIS_INCLUSIVE_RANGE_PATTERNS,
320        ELIDED_LIFETIMES_IN_PATHS,
321        EXPLICIT_OUTLIVES_REQUIREMENTS // FIXME(#52665, #47816) not always applicable and not all
322                                       // macros are ready for this yet.
323                                       // UNREACHABLE_PUB,
324
325                                       // FIXME macro crates are not up for this yet, too much
326                                       // breakage is seen if we try to encourage this lint.
327                                       // MACRO_USE_EXTERN_CRATE
328    );
329
330    add_lint_group!("keyword_idents", KEYWORD_IDENTS_2018, KEYWORD_IDENTS_2024);
331
332    add_lint_group!(
333        "refining_impl_trait",
334        REFINING_IMPL_TRAIT_REACHABLE,
335        REFINING_IMPL_TRAIT_INTERNAL
336    );
337
338    add_lint_group!("deprecated_safe", DEPRECATED_SAFE_2024);
339
340    add_lint_group!(
341        "unknown_or_malformed_diagnostic_attributes",
342        MALFORMED_DIAGNOSTIC_ATTRIBUTES,
343        MALFORMED_DIAGNOSTIC_FORMAT_LITERALS,
344        MISPLACED_DIAGNOSTIC_ATTRIBUTES,
345        UNKNOWN_DIAGNOSTIC_ATTRIBUTES
346    );
347
348    // Register renamed and removed lints.
349    store.register_renamed("single_use_lifetime", "single_use_lifetimes");
350    store.register_renamed("elided_lifetime_in_path", "elided_lifetimes_in_paths");
351    store.register_renamed("bare_trait_object", "bare_trait_objects");
352    store.register_renamed("unstable_name_collision", "unstable_name_collisions");
353    store.register_renamed("unused_doc_comment", "unused_doc_comments");
354    store.register_renamed("async_idents", "keyword_idents_2018");
355    store.register_renamed("exceeding_bitshifts", "arithmetic_overflow");
356    store.register_renamed("redundant_semicolon", "redundant_semicolons");
357    store.register_renamed("overlapping_patterns", "overlapping_range_endpoints");
358    store.register_renamed("disjoint_capture_migration", "rust_2021_incompatible_closure_captures");
359    store.register_renamed("or_patterns_back_compat", "rust_2021_incompatible_or_patterns");
360    store.register_renamed("non_fmt_panic", "non_fmt_panics");
361    store.register_renamed("unused_tuple_struct_fields", "dead_code");
362    store.register_renamed("static_mut_ref", "static_mut_refs");
363    store.register_renamed("temporary_cstring_as_ptr", "dangling_pointers_from_temporaries");
364    store.register_renamed("elided_named_lifetimes", "mismatched_lifetime_syntaxes");
365    store.register_renamed(
366        "repr_transparent_external_private_fields",
367        "repr_transparent_non_zst_fields",
368    );
369
370    // These were moved to tool lints, but rustc still sees them when compiling normally, before
371    // tool lints are registered, so `check_tool_name_for_backwards_compat` doesn't work. Use
372    // `register_removed` explicitly.
373    const RUSTDOC_LINTS: &[&str] = &[
374        "broken_intra_doc_links",
375        "private_intra_doc_links",
376        "missing_crate_level_docs",
377        "missing_doc_code_examples",
378        "private_doc_tests",
379        "invalid_codeblock_attributes",
380        "invalid_html_tags",
381        "non_autolinks",
382    ];
383    for rustdoc_lint in RUSTDOC_LINTS {
384        store.register_ignored(rustdoc_lint);
385    }
386    store.register_removed(
387        "intra_doc_link_resolution_failure",
388        "use `rustdoc::broken_intra_doc_links` instead",
389    );
390    store.register_removed("rustdoc", "use `rustdoc::all` instead");
391
392    store.register_removed("unknown_features", "replaced by an error");
393    store.register_removed("unsigned_negation", "replaced by negate_unsigned feature gate");
394    store.register_removed("negate_unsigned", "cast a signed value instead");
395    store.register_removed("raw_pointer_derive", "using derive with raw pointers is ok");
396    // Register lint group aliases.
397    store.register_group_alias("nonstandard_style", "bad_style");
398    // This was renamed to `raw_pointer_derive`, which was then removed,
399    // so it is also considered removed.
400    store.register_removed("raw_pointer_deriving", "using derive with raw pointers is ok");
401    store.register_removed("drop_with_repr_extern", "drop flags have been removed");
402    store.register_removed("fat_ptr_transmutes", "was accidentally removed back in 2014");
403    store.register_removed("deprecated_attr", "use `deprecated` instead");
404    store.register_removed(
405        "transmute_from_fn_item_types",
406        "always cast functions before transmuting them",
407    );
408    store.register_removed(
409        "hr_lifetime_in_assoc_type",
410        "converted into hard error, see issue #33685 \
411         <https://github.com/rust-lang/rust/issues/33685> for more information",
412    );
413    store.register_removed(
414        "inaccessible_extern_crate",
415        "converted into hard error, see issue #36886 \
416         <https://github.com/rust-lang/rust/issues/36886> for more information",
417    );
418    store.register_removed(
419        "super_or_self_in_global_path",
420        "converted into hard error, see issue #36888 \
421         <https://github.com/rust-lang/rust/issues/36888> for more information",
422    );
423    store.register_removed(
424        "overlapping_inherent_impls",
425        "converted into hard error, see issue #36889 \
426         <https://github.com/rust-lang/rust/issues/36889> for more information",
427    );
428    store.register_removed(
429        "illegal_floating_point_constant_pattern",
430        "converted into hard error, see issue #36890 \
431         <https://github.com/rust-lang/rust/issues/36890> for more information",
432    );
433    store.register_removed(
434        "illegal_struct_or_enum_constant_pattern",
435        "converted into hard error, see issue #36891 \
436         <https://github.com/rust-lang/rust/issues/36891> for more information",
437    );
438    store.register_removed(
439        "lifetime_underscore",
440        "converted into hard error, see issue #36892 \
441         <https://github.com/rust-lang/rust/issues/36892> for more information",
442    );
443    store.register_removed(
444        "extra_requirement_in_impl",
445        "converted into hard error, see issue #37166 \
446         <https://github.com/rust-lang/rust/issues/37166> for more information",
447    );
448    store.register_removed(
449        "legacy_imports",
450        "converted into hard error, see issue #38260 \
451         <https://github.com/rust-lang/rust/issues/38260> for more information",
452    );
453    store.register_removed(
454        "coerce_never",
455        "converted into hard error, see issue #48950 \
456         <https://github.com/rust-lang/rust/issues/48950> for more information",
457    );
458    store.register_removed(
459        "resolve_trait_on_defaulted_unit",
460        "converted into hard error, see issue #48950 \
461         <https://github.com/rust-lang/rust/issues/48950> for more information",
462    );
463    store.register_removed(
464        "private_no_mangle_fns",
465        "no longer a warning, `#[no_mangle]` functions always exported",
466    );
467    store.register_removed(
468        "private_no_mangle_statics",
469        "no longer a warning, `#[no_mangle]` statics always exported",
470    );
471    store.register_removed("bad_repr", "replaced with a generic attribute input check");
472    store.register_removed(
473        "duplicate_matcher_binding_name",
474        "converted into hard error, see issue #57742 \
475         <https://github.com/rust-lang/rust/issues/57742> for more information",
476    );
477    store.register_removed(
478        "incoherent_fundamental_impls",
479        "converted into hard error, see issue #46205 \
480         <https://github.com/rust-lang/rust/issues/46205> for more information",
481    );
482    store.register_removed(
483        "legacy_constructor_visibility",
484        "converted into hard error, see issue #39207 \
485         <https://github.com/rust-lang/rust/issues/39207> for more information",
486    );
487    store.register_removed(
488        "legacy_directory_ownership",
489        "converted into hard error, see issue #37872 \
490         <https://github.com/rust-lang/rust/issues/37872> for more information",
491    );
492    store.register_removed(
493        "safe_extern_statics",
494        "converted into hard error, see issue #36247 \
495         <https://github.com/rust-lang/rust/issues/36247> for more information",
496    );
497    store.register_removed(
498        "parenthesized_params_in_types_and_modules",
499        "converted into hard error, see issue #42238 \
500         <https://github.com/rust-lang/rust/issues/42238> for more information",
501    );
502    store.register_removed(
503        "duplicate_macro_exports",
504        "converted into hard error, see issue #35896 \
505         <https://github.com/rust-lang/rust/issues/35896> for more information",
506    );
507    store.register_removed(
508        "nested_impl_trait",
509        "converted into hard error, see issue #59014 \
510         <https://github.com/rust-lang/rust/issues/59014> for more information",
511    );
512    store.register_removed("plugin_as_library", "plugins have been deprecated and retired");
513    store.register_removed(
514        "unsupported_naked_functions",
515        "converted into hard error, see RFC 2972 \
516         <https://github.com/rust-lang/rfcs/blob/master/text/2972-constrained-naked.md> for more information",
517    );
518    store.register_removed(
519        "mutable_borrow_reservation_conflict",
520        "now allowed, see issue #59159 \
521         <https://github.com/rust-lang/rust/issues/59159> for more information",
522    );
523    store.register_removed(
524        "const_err",
525        "converted into hard error, see issue #71800 \
526         <https://github.com/rust-lang/rust/issues/71800> for more information",
527    );
528    store.register_removed(
529        "safe_packed_borrows",
530        "converted into hard error, see issue #82523 \
531         <https://github.com/rust-lang/rust/issues/82523> for more information",
532    );
533    store.register_removed(
534        "unaligned_references",
535        "converted into hard error, see issue #82523 \
536         <https://github.com/rust-lang/rust/issues/82523> for more information",
537    );
538    store.register_removed(
539        "private_in_public",
540        "replaced with another group of lints, see RFC \
541         <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information",
542    );
543    store.register_removed(
544        "invalid_alignment",
545        "converted into hard error, see PR #104616 \
546         <https://github.com/rust-lang/rust/pull/104616> for more information",
547    );
548    store.register_removed(
549        "implied_bounds_entailment",
550        "converted into hard error, see PR #117984 \
551        <https://github.com/rust-lang/rust/pull/117984> for more information",
552    );
553    store.register_removed(
554        "coinductive_overlap_in_coherence",
555        "converted into hard error, see PR #118649 \
556         <https://github.com/rust-lang/rust/pull/118649> for more information",
557    );
558    store.register_removed(
559        "illegal_floating_point_literal_pattern",
560        "no longer a warning, float patterns behave the same as `==`",
561    );
562    store.register_removed(
563        "nontrivial_structural_match",
564        "no longer needed, see RFC #3535 \
565         <https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
566    );
567    store.register_removed(
568        "suspicious_auto_trait_impls",
569        "no longer needed, see issue #93367 \
570         <https://github.com/rust-lang/rust/issues/93367> for more information",
571    );
572    store.register_removed(
573        "const_patterns_without_partial_eq",
574        "converted into hard error, see RFC #3535 \
575         <https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
576    );
577    store.register_removed(
578        "indirect_structural_match",
579        "converted into hard error, see RFC #3535 \
580         <https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
581    );
582    store.register_removed(
583        "deprecated_cfg_attr_crate_type_name",
584        "converted into hard error, see issue #91632 \
585         <https://github.com/rust-lang/rust/issues/91632> for more information",
586    );
587    store.register_removed(
588        "pointer_structural_match",
589        "converted into hard error, see RFC #3535 \
590         <https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
591    );
592    store.register_removed(
593        "box_pointers",
594        "it does not detect other kinds of allocations, and existed only for historical reasons",
595    );
596    store.register_removed(
597        "byte_slice_in_packed_struct_with_derive",
598        "converted into hard error, see issue #107457 \
599         <https://github.com/rust-lang/rust/issues/107457> for more information",
600    );
601    store.register_removed("writes_through_immutable_pointer", "converted into hard error");
602    store.register_removed(
603        "const_eval_mutable_ptr_in_final_value",
604        "partially allowed now, otherwise turned into a hard error",
605    );
606    store.register_removed(
607        "where_clauses_object_safety",
608        "converted into hard error, see PR #125380 \
609         <https://github.com/rust-lang/rust/pull/125380> for more information",
610    );
611    store.register_removed(
612        "cenum_impl_drop_cast",
613        "converted into hard error, \
614         see <https://github.com/rust-lang/rust/issues/73333> for more information",
615    );
616    store.register_removed(
617        "ptr_cast_add_auto_to_object",
618        "converted into hard error, see issue #127323 \
619         <https://github.com/rust-lang/rust/issues/127323> for more information",
620    );
621    store.register_removed("unsupported_fn_ptr_calling_conventions", "converted into hard error");
622    store.register_removed(
623        "undefined_naked_function_abi",
624        "converted into hard error, see PR #139001 \
625         <https://github.com/rust-lang/rust/issues/139001> for more information",
626    );
627    store.register_removed(
628        "abi_unsupported_vector_types",
629        "converted into hard error, \
630         see <https://github.com/rust-lang/rust/issues/116558> for more information",
631    );
632    store.register_removed(
633        "missing_fragment_specifier",
634        "converted into hard error, \
635         see <https://github.com/rust-lang/rust/issues/40107> for more information",
636    );
637    store.register_removed("wasm_c_abi", "the wasm C ABI has been fixed");
638}
639
640fn register_internals(store: &mut LintStore) {
641    store.register_lints(&LintPassImpl::lint_vec());
642    store.register_early_pass(|| Box::new(LintPassImpl));
643    store.register_lints(&DefaultHashTypes::lint_vec());
644    store.register_late_mod_pass(|_| Box::new(DefaultHashTypes));
645    store.register_lints(&QueryStability::lint_vec());
646    store.register_late_mod_pass(|_| Box::new(QueryStability));
647    store.register_lints(&TyTyKind::lint_vec());
648    store.register_late_mod_pass(|_| Box::new(TyTyKind));
649    store.register_lints(&TypeIr::lint_vec());
650    store.register_late_mod_pass(|_| Box::new(TypeIr));
651    store.register_lints(&Diagnostics::lint_vec());
652    store.register_late_mod_pass(|_| Box::new(Diagnostics));
653    store.register_lints(&BadOptAccess::lint_vec());
654    store.register_late_mod_pass(|_| Box::new(BadOptAccess));
655    store.register_lints(&PassByValue::lint_vec());
656    store.register_late_mod_pass(|_| Box::new(PassByValue));
657    store.register_lints(&SpanUseEqCtxt::lint_vec());
658    store.register_late_mod_pass(|_| Box::new(SpanUseEqCtxt));
659    store.register_lints(&SymbolInternStringLiteral::lint_vec());
660    store.register_late_mod_pass(|_| Box::new(SymbolInternStringLiteral));
661    store.register_lints(&ImplicitSysrootCrateImport::lint_vec());
662    store.register_early_pass(|| Box::new(ImplicitSysrootCrateImport));
663    // FIXME(davidtwco): deliberately do not include `UNTRANSLATABLE_DIAGNOSTIC` and
664    // `DIAGNOSTIC_OUTSIDE_OF_IMPL` here because `-Wrustc::internal` is provided to every crate and
665    // these lints will trigger all of the time - change this once migration to diagnostic structs
666    // and translation is completed
667    store.register_group(
668        false,
669        "rustc::internal",
670        None,
671        vec![
672            LintId::of(DEFAULT_HASH_TYPES),
673            LintId::of(POTENTIAL_QUERY_INSTABILITY),
674            LintId::of(UNTRACKED_QUERY_INFORMATION),
675            LintId::of(USAGE_OF_TY_TYKIND),
676            LintId::of(PASS_BY_VALUE),
677            LintId::of(LINT_PASS_IMPL_WITHOUT_MACRO),
678            LintId::of(USAGE_OF_QUALIFIED_TY),
679            LintId::of(NON_GLOB_IMPORT_OF_TYPE_IR_INHERENT),
680            LintId::of(USAGE_OF_TYPE_IR_INHERENT),
681            LintId::of(USAGE_OF_TYPE_IR_TRAITS),
682            LintId::of(BAD_OPT_ACCESS),
683            LintId::of(SPAN_USE_EQ_CTXT),
684            LintId::of(DIRECT_USE_OF_RUSTC_TYPE_IR),
685            LintId::of(IMPLICIT_SYSROOT_CRATE_IMPORT),
686        ],
687    );
688}
689
690#[cfg(test)]
691mod tests;