compiler/rustc_lint/src/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 user-defined lint plugins via the plugin mechanism.
  14 //!
  15 //! Some of rustc's lints are defined elsewhere in the compiler and work by
  16 //! calling `add_lint()` on the overall `Session` object. This works when
  17 //! it happens before the main lint pass, which emits the lints stored by
  18 //! `add_lint()`. To emit lints after the main lint pass (from codegen, for
  19 //! example) requires more effort. See `emit_lint` and `GatherNodeLevels`
  20 //! in `context.rs`.
  21 //!
  22 //! Some code also exists in [rustc_session::lint], [rustc_middle::lint].
  23 //!
  24 //! ## Note
  25 //!
  26 //! This API is completely unstable and subject to change.
  27
  28 #![allow(rustc::potential_query_instability)]
  29 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
  30 #![feature(array_windows)]
  31 #![feature(box_patterns)]
  32 #![feature(control_flow_enum)]
  33 #![feature(if_let_guard)]
  34 #![feature(iter_intersperse)]
  35 #![feature(iter_order_by)]
  36 #![feature(let_chains)]
  37 #![feature(spec_option_partial_eq)]
  38 #![feature(min_specialization)]
  39 #![feature(never_type)]
  40 #![recursion_limit = "256"]
  41
  42 #[macro_use]
  43 extern crate rustc_middle;
  44 #[macro_use]
  45 extern crate rustc_session;
  46 #[macro_use]
  47 extern crate tracing;
  48
  49 mod array_into_iter;
  50 pub mod builtin;
  51 mod context;
  52 mod early;
  53 mod enum_intrinsics_non_enums;
  54 mod errors;
  55 mod expect;
  56 mod for_loops_over_fallibles;
  57 pub mod hidden_unicode_codepoints;
  58 mod internal;
  59 mod late;
  60 mod let_underscore;
  61 mod levels;
  62 mod methods;
  63 mod non_ascii_idents;
  64 mod non_fmt_panic;
  65 mod nonstandard_style;
  66 mod noop_method_call;
  67 mod opaque_hidden_inferred_bound;
  68 mod pass_by_value;
  69 mod passes;
  70 mod redundant_semicolon;
  71 mod traits;
  72 mod types;
  73 mod unused;
  74
  75 pub use array_into_iter::ARRAY_INTO_ITER;
  76
  77 use rustc_ast as ast;
  78 use rustc_hir as hir;
  79 use rustc_hir::def_id::LocalDefId;
  80 use rustc_middle::ty::query::Providers;
  81 use rustc_middle::ty::TyCtxt;
  82 use rustc_session::lint::builtin::{
  83     BARE_TRAIT_OBJECTS, ELIDED_LIFETIMES_IN_PATHS, EXPLICIT_OUTLIVES_REQUIREMENTS,
  84 };
  85 use rustc_span::symbol::Ident;
  86 use rustc_span::Span;
  87
  88 use array_into_iter::ArrayIntoIter;
  89 use builtin::*;
  90 use enum_intrinsics_non_enums::EnumIntrinsicsNonEnums;
  91 use for_loops_over_fallibles::*;
  92 use hidden_unicode_codepoints::*;
  93 use internal::*;
  94 use let_underscore::*;
  95 use methods::*;
  96 use non_ascii_idents::*;
  97 use non_fmt_panic::NonPanicFmt;
  98 use nonstandard_style::*;
  99 use noop_method_call::*;
 100 use opaque_hidden_inferred_bound::*;
 101 use pass_by_value::*;
 102 use redundant_semicolon::*;
 103 use traits::*;
 104 use types::*;
 105 use unused::*;
 106
 107 /// Useful for other parts of the compiler / Clippy.
 108 pub use builtin::SoftLints;
 109 pub use context::{CheckLintNameResult, FindLintError, LintStore};
 110 pub use context::{EarlyContext, LateContext, LintContext};
 111 pub use early::{check_ast_node, EarlyCheckNode};
 112 pub use late::{check_crate, unerased_lint_store};
 113 pub use passes::{EarlyLintPass, LateLintPass};
 114 pub use rustc_session::lint::Level::{self, *};
 115 pub use rustc_session::lint::{BufferedEarlyLint, FutureIncompatibleInfo, Lint, LintId};
 116 pub use rustc_session::lint::{LintArray, LintPass};
 117
 118 pub fn provide(providers: &mut Providers) {
 119     levels::provide(providers);
 120     expect::provide(providers);
 121     *providers = Providers { lint_mod, ..*providers };
 122 }
 123
 124 fn lint_mod(tcx: TyCtxt<'_>, module_def_id: LocalDefId) {
 125     late::late_lint_mod(tcx, module_def_id, BuiltinCombinedModuleLateLintPass::new());
 126 }
 127
 128 macro_rules! pre_expansion_lint_passes {
 129     ($macro:path, $args:tt) => {
 130         $macro!($args, [KeywordIdents: KeywordIdents,]);
 131     };
 132 }
 133
 134 macro_rules! early_lint_passes {
 135     ($macro:path, $args:tt) => {
 136         $macro!(
 137             $args,
 138             [
 139                 UnusedParens: UnusedParens,
 140                 UnusedBraces: UnusedBraces,
 141                 UnusedImportBraces: UnusedImportBraces,
 142                 UnsafeCode: UnsafeCode,
 143                 SpecialModuleName: SpecialModuleName,
 144                 AnonymousParameters: AnonymousParameters,
 145                 EllipsisInclusiveRangePatterns: EllipsisInclusiveRangePatterns::default(),
 146                 NonCamelCaseTypes: NonCamelCaseTypes,
 147                 DeprecatedAttr: DeprecatedAttr::new(),
 148                 WhileTrue: WhileTrue,
 149                 NonAsciiIdents: NonAsciiIdents,
 150                 HiddenUnicodeCodepoints: HiddenUnicodeCodepoints,
 151                 IncompleteFeatures: IncompleteFeatures,
 152                 RedundantSemicolons: RedundantSemicolons,
 153                 UnusedDocComment: UnusedDocComment,
 154                 UnexpectedCfgs: UnexpectedCfgs,
 155             ]
 156         );
 157     };
 158 }
 159
 160 macro_rules! declare_combined_early_pass {
 161     ([$name:ident], $passes:tt) => (
 162         early_lint_methods!(declare_combined_early_lint_pass, [pub $name, $passes]);
 163     )
 164 }
 165
 166 pre_expansion_lint_passes!(declare_combined_early_pass, [BuiltinCombinedPreExpansionLintPass]);
 167 early_lint_passes!(declare_combined_early_pass, [BuiltinCombinedEarlyLintPass]);
 168
 169 macro_rules! late_lint_passes {
 170     ($macro:path, $args:tt) => {
 171         $macro!(
 172             $args,
 173             [
 174                 // Tracks state across modules
 175                 UnnameableTestItems: UnnameableTestItems::new(),
 176                 // Tracks attributes of parents
 177                 MissingDoc: MissingDoc::new(),
 178                 // Builds a global list of all impls of `Debug`.
 179                 // FIXME: Turn the computation of types which implement Debug into a query
 180                 // and change this to a module lint pass
 181                 MissingDebugImplementations: MissingDebugImplementations::default(),
 182                 // Keeps a global list of foreign declarations.
 183                 ClashingExternDeclarations: ClashingExternDeclarations::new(),
 184             ]
 185         );
 186     };
 187 }
 188
 189 macro_rules! late_lint_mod_passes {
 190     ($macro:path, $args:tt) => {
 191         $macro!(
 192             $args,
 193             [
 194                 ForLoopsOverFallibles: ForLoopsOverFallibles,
 195                 HardwiredLints: HardwiredLints,
 196                 ImproperCTypesDeclarations: ImproperCTypesDeclarations,
 197                 ImproperCTypesDefinitions: ImproperCTypesDefinitions,
 198                 VariantSizeDifferences: VariantSizeDifferences,
 199                 BoxPointers: BoxPointers,
 200                 PathStatements: PathStatements,
 201                 LetUnderscore: LetUnderscore,
 202                 // Depends on referenced function signatures in expressions
 203                 UnusedResults: UnusedResults,
 204                 NonUpperCaseGlobals: NonUpperCaseGlobals,
 205                 NonShorthandFieldPatterns: NonShorthandFieldPatterns,
 206                 UnusedAllocation: UnusedAllocation,
 207                 // Depends on types used in type definitions
 208                 MissingCopyImplementations: MissingCopyImplementations,
 209                 // Depends on referenced function signatures in expressions
 210                 MutableTransmutes: MutableTransmutes,
 211                 TypeAliasBounds: TypeAliasBounds,
 212                 TrivialConstraints: TrivialConstraints,
 213                 TypeLimits: TypeLimits::new(),
 214                 NonSnakeCase: NonSnakeCase,
 215                 InvalidNoMangleItems: InvalidNoMangleItems,
 216                 // Depends on effective visibilities
 217                 UnreachablePub: UnreachablePub,
 218                 ExplicitOutlivesRequirements: ExplicitOutlivesRequirements,
 219                 InvalidValue: InvalidValue,
 220                 DerefNullPtr: DerefNullPtr,
 221                 // May Depend on constants elsewhere
 222                 UnusedBrokenConst: UnusedBrokenConst,
 223                 UnstableFeatures: UnstableFeatures,
 224                 ArrayIntoIter: ArrayIntoIter::default(),
 225                 DropTraitConstraints: DropTraitConstraints,
 226                 TemporaryCStringAsPtr: TemporaryCStringAsPtr,
 227                 NonPanicFmt: NonPanicFmt,
 228                 NoopMethodCall: NoopMethodCall,
 229                 EnumIntrinsicsNonEnums: EnumIntrinsicsNonEnums,
 230                 InvalidAtomicOrdering: InvalidAtomicOrdering,
 231                 NamedAsmLabels: NamedAsmLabels,
 232                 OpaqueHiddenInferredBound: OpaqueHiddenInferredBound,
 233             ]
 234         );
 235     };
 236 }
 237
 238 macro_rules! declare_combined_late_pass {
 239     ([$v:vis $name:ident], $passes:tt) => (
 240         late_lint_methods!(declare_combined_late_lint_pass, [$v $name, $passes], ['tcx]);
 241     )
 242 }
 243
 244 // FIXME: Make a separate lint type which do not require typeck tables
 245 late_lint_passes!(declare_combined_late_pass, [pub BuiltinCombinedLateLintPass]);
 246
 247 late_lint_mod_passes!(declare_combined_late_pass, [BuiltinCombinedModuleLateLintPass]);
 248
 249 pub fn new_lint_store(no_interleave_lints: bool, internal_lints: bool) -> LintStore {
 250     let mut lint_store = LintStore::new();
 251
 252     register_builtins(&mut lint_store, no_interleave_lints);
 253     if internal_lints {
 254         register_internals(&mut lint_store);
 255     }
 256
 257     lint_store
 258 }
 259
 260 /// Tell the `LintStore` about all the built-in lints (the ones
 261 /// defined in this crate and the ones defined in
 262 /// `rustc_session::lint::builtin`).
 263 fn register_builtins(store: &mut LintStore, no_interleave_lints: bool) {
 264     macro_rules! add_lint_group {
 265         ($name:expr, $($lint:ident),*) => (
 266             store.register_group(false, $name, None, vec![$(LintId::of($lint)),*]);
 267         )
 268     }
 269
 270     macro_rules! register_early_pass {
 271         ($method:ident, $ty:ident, $constructor:expr) => {
 272             store.register_lints(&$ty::get_lints());
 273             store.$method(|| Box::new($constructor));
 274         };
 275     }
 276
 277     macro_rules! register_late_pass {
 278         ($method:ident, $ty:ident, $constructor:expr) => {
 279             store.register_lints(&$ty::get_lints());
 280             store.$method(|_| Box::new($constructor));
 281         };
 282     }
 283
 284     macro_rules! register_early_passes {
 285         ($method:ident, [$($passes:ident: $constructor:expr,)*]) => (
 286             $(
 287                 register_early_pass!($method, $passes, $constructor);
 288             )*
 289         )
 290     }
 291
 292     macro_rules! register_late_passes {
 293         ($method:ident, [$($passes:ident: $constructor:expr,)*]) => (
 294             $(
 295                 register_late_pass!($method, $passes, $constructor);
 296             )*
 297         )
 298     }
 299
 300     if no_interleave_lints {
 301         pre_expansion_lint_passes!(register_early_passes, register_pre_expansion_pass);
 302         early_lint_passes!(register_early_passes, register_early_pass);
 303         late_lint_passes!(register_late_passes, register_late_pass);
 304         late_lint_mod_passes!(register_late_passes, register_late_mod_pass);
 305     } else {
 306         store.register_lints(&BuiltinCombinedPreExpansionLintPass::get_lints());
 307         store.register_lints(&BuiltinCombinedEarlyLintPass::get_lints());
 308         store.register_lints(&BuiltinCombinedModuleLateLintPass::get_lints());
 309         store.register_lints(&BuiltinCombinedLateLintPass::get_lints());
 310     }
 311
 312     add_lint_group!(
 313         "nonstandard_style",
 314         NON_CAMEL_CASE_TYPES,
 315         NON_SNAKE_CASE,
 316         NON_UPPER_CASE_GLOBALS
 317     );
 318
 319     add_lint_group!(
 320         "unused",
 321         UNUSED_IMPORTS,
 322         UNUSED_VARIABLES,
 323         UNUSED_ASSIGNMENTS,
 324         DEAD_CODE,
 325         UNUSED_MUT,
 326         UNREACHABLE_CODE,
 327         UNREACHABLE_PATTERNS,
 328         UNUSED_MUST_USE,
 329         UNUSED_UNSAFE,
 330         PATH_STATEMENTS,
 331         UNUSED_ATTRIBUTES,
 332         UNUSED_MACROS,
 333         UNUSED_MACRO_RULES,
 334         UNUSED_ALLOCATION,
 335         UNUSED_DOC_COMMENTS,
 336         UNUSED_EXTERN_CRATES,
 337         UNUSED_FEATURES,
 338         UNUSED_LABELS,
 339         UNUSED_PARENS,
 340         UNUSED_BRACES,
 341         REDUNDANT_SEMICOLONS
 342     );
 343
 344     add_lint_group!("let_underscore", LET_UNDERSCORE_DROP, LET_UNDERSCORE_LOCK);
 345
 346     add_lint_group!(
 347         "rust_2018_idioms",
 348         BARE_TRAIT_OBJECTS,
 349         UNUSED_EXTERN_CRATES,
 350         ELLIPSIS_INCLUSIVE_RANGE_PATTERNS,
 351         ELIDED_LIFETIMES_IN_PATHS,
 352         EXPLICIT_OUTLIVES_REQUIREMENTS // FIXME(#52665, #47816) not always applicable and not all
 353                                        // macros are ready for this yet.
 354                                        // UNREACHABLE_PUB,
 355
 356                                        // FIXME macro crates are not up for this yet, too much
 357                                        // breakage is seen if we try to encourage this lint.
 358                                        // MACRO_USE_EXTERN_CRATE
 359     );
 360
 361     // Register renamed and removed lints.
 362     store.register_renamed("single_use_lifetime", "single_use_lifetimes");
 363     store.register_renamed("elided_lifetime_in_path", "elided_lifetimes_in_paths");
 364     store.register_renamed("bare_trait_object", "bare_trait_objects");
 365     store.register_renamed("unstable_name_collision", "unstable_name_collisions");
 366     store.register_renamed("unused_doc_comment", "unused_doc_comments");
 367     store.register_renamed("async_idents", "keyword_idents");
 368     store.register_renamed("exceeding_bitshifts", "arithmetic_overflow");
 369     store.register_renamed("redundant_semicolon", "redundant_semicolons");
 370     store.register_renamed("overlapping_patterns", "overlapping_range_endpoints");
 371     store.register_renamed("safe_packed_borrows", "unaligned_references");
 372     store.register_renamed("disjoint_capture_migration", "rust_2021_incompatible_closure_captures");
 373     store.register_renamed("or_patterns_back_compat", "rust_2021_incompatible_or_patterns");
 374     store.register_renamed("non_fmt_panic", "non_fmt_panics");
 375
 376     // These were moved to tool lints, but rustc still sees them when compiling normally, before
 377     // tool lints are registered, so `check_tool_name_for_backwards_compat` doesn't work. Use
 378     // `register_removed` explicitly.
 379     const RUSTDOC_LINTS: &[&str] = &[
 380         "broken_intra_doc_links",
 381         "private_intra_doc_links",
 382         "missing_crate_level_docs",
 383         "missing_doc_code_examples",
 384         "private_doc_tests",
 385         "invalid_codeblock_attributes",
 386         "invalid_html_tags",
 387         "non_autolinks",
 388     ];
 389     for rustdoc_lint in RUSTDOC_LINTS {
 390         store.register_ignored(rustdoc_lint);
 391     }
 392     store.register_removed(
 393         "intra_doc_link_resolution_failure",
 394         "use `rustdoc::broken_intra_doc_links` instead",
 395     );
 396     store.register_removed("rustdoc", "use `rustdoc::all` instead");
 397
 398     store.register_removed("unknown_features", "replaced by an error");
 399     store.register_removed("unsigned_negation", "replaced by negate_unsigned feature gate");
 400     store.register_removed("negate_unsigned", "cast a signed value instead");
 401     store.register_removed("raw_pointer_derive", "using derive with raw pointers is ok");
 402     // Register lint group aliases.
 403     store.register_group_alias("nonstandard_style", "bad_style");
 404     // This was renamed to `raw_pointer_derive`, which was then removed,
 405     // so it is also considered removed.
 406     store.register_removed("raw_pointer_deriving", "using derive with raw pointers is ok");
 407     store.register_removed("drop_with_repr_extern", "drop flags have been removed");
 408     store.register_removed("fat_ptr_transmutes", "was accidentally removed back in 2014");
 409     store.register_removed("deprecated_attr", "use `deprecated` instead");
 410     store.register_removed(
 411         "transmute_from_fn_item_types",
 412         "always cast functions before transmuting them",
 413     );
 414     store.register_removed(
 415         "hr_lifetime_in_assoc_type",
 416         "converted into hard error, see issue #33685 \
 417          <https://github.com/rust-lang/rust/issues/33685> for more information",
 418     );
 419     store.register_removed(
 420         "inaccessible_extern_crate",
 421         "converted into hard error, see issue #36886 \
 422          <https://github.com/rust-lang/rust/issues/36886> for more information",
 423     );
 424     store.register_removed(
 425         "super_or_self_in_global_path",
 426         "converted into hard error, see issue #36888 \
 427          <https://github.com/rust-lang/rust/issues/36888> for more information",
 428     );
 429     store.register_removed(
 430         "overlapping_inherent_impls",
 431         "converted into hard error, see issue #36889 \
 432          <https://github.com/rust-lang/rust/issues/36889> for more information",
 433     );
 434     store.register_removed(
 435         "illegal_floating_point_constant_pattern",
 436         "converted into hard error, see issue #36890 \
 437          <https://github.com/rust-lang/rust/issues/36890> for more information",
 438     );
 439     store.register_removed(
 440         "illegal_struct_or_enum_constant_pattern",
 441         "converted into hard error, see issue #36891 \
 442          <https://github.com/rust-lang/rust/issues/36891> for more information",
 443     );
 444     store.register_removed(
 445         "lifetime_underscore",
 446         "converted into hard error, see issue #36892 \
 447          <https://github.com/rust-lang/rust/issues/36892> for more information",
 448     );
 449     store.register_removed(
 450         "extra_requirement_in_impl",
 451         "converted into hard error, see issue #37166 \
 452          <https://github.com/rust-lang/rust/issues/37166> for more information",
 453     );
 454     store.register_removed(
 455         "legacy_imports",
 456         "converted into hard error, see issue #38260 \
 457          <https://github.com/rust-lang/rust/issues/38260> for more information",
 458     );
 459     store.register_removed(
 460         "coerce_never",
 461         "converted into hard error, see issue #48950 \
 462          <https://github.com/rust-lang/rust/issues/48950> for more information",
 463     );
 464     store.register_removed(
 465         "resolve_trait_on_defaulted_unit",
 466         "converted into hard error, see issue #48950 \
 467          <https://github.com/rust-lang/rust/issues/48950> for more information",
 468     );
 469     store.register_removed(
 470         "private_no_mangle_fns",
 471         "no longer a warning, `#[no_mangle]` functions always exported",
 472     );
 473     store.register_removed(
 474         "private_no_mangle_statics",
 475         "no longer a warning, `#[no_mangle]` statics always exported",
 476     );
 477     store.register_removed("bad_repr", "replaced with a generic attribute input check");
 478     store.register_removed(
 479         "duplicate_matcher_binding_name",
 480         "converted into hard error, see issue #57742 \
 481          <https://github.com/rust-lang/rust/issues/57742> for more information",
 482     );
 483     store.register_removed(
 484         "incoherent_fundamental_impls",
 485         "converted into hard error, see issue #46205 \
 486          <https://github.com/rust-lang/rust/issues/46205> for more information",
 487     );
 488     store.register_removed(
 489         "legacy_constructor_visibility",
 490         "converted into hard error, see issue #39207 \
 491          <https://github.com/rust-lang/rust/issues/39207> for more information",
 492     );
 493     store.register_removed(
 494         "legacy_directory_ownership",
 495         "converted into hard error, see issue #37872 \
 496          <https://github.com/rust-lang/rust/issues/37872> for more information",
 497     );
 498     store.register_removed(
 499         "safe_extern_statics",
 500         "converted into hard error, see issue #36247 \
 501          <https://github.com/rust-lang/rust/issues/36247> for more information",
 502     );
 503     store.register_removed(
 504         "parenthesized_params_in_types_and_modules",
 505         "converted into hard error, see issue #42238 \
 506          <https://github.com/rust-lang/rust/issues/42238> for more information",
 507     );
 508     store.register_removed(
 509         "duplicate_macro_exports",
 510         "converted into hard error, see issue #35896 \
 511          <https://github.com/rust-lang/rust/issues/35896> for more information",
 512     );
 513     store.register_removed(
 514         "nested_impl_trait",
 515         "converted into hard error, see issue #59014 \
 516          <https://github.com/rust-lang/rust/issues/59014> for more information",
 517     );
 518     store.register_removed("plugin_as_library", "plugins have been deprecated and retired");
 519     store.register_removed(
 520         "unsupported_naked_functions",
 521         "converted into hard error, see RFC 2972 \
 522          <https://github.com/rust-lang/rfcs/blob/master/text/2972-constrained-naked.md> for more information",
 523     );
 524     store.register_removed(
 525         "mutable_borrow_reservation_conflict",
 526         "now allowed, see issue #59159 \
 527          <https://github.com/rust-lang/rust/issues/59159> for more information",
 528     );
 529     store.register_removed(
 530         "const_err",
 531         "converted into hard error, see issue #71800 \
 532          <https://github.com/rust-lang/rust/issues/71800> for more information",
 533     );
 534 }
 535
 536 fn register_internals(store: &mut LintStore) {
 537     store.register_lints(&LintPassImpl::get_lints());
 538     store.register_early_pass(|| Box::new(LintPassImpl));
 539     store.register_lints(&DefaultHashTypes::get_lints());
 540     store.register_late_pass(|_| Box::new(DefaultHashTypes));
 541     store.register_lints(&QueryStability::get_lints());
 542     store.register_late_pass(|_| Box::new(QueryStability));
 543     store.register_lints(&ExistingDocKeyword::get_lints());
 544     store.register_late_pass(|_| Box::new(ExistingDocKeyword));
 545     store.register_lints(&TyTyKind::get_lints());
 546     store.register_late_pass(|_| Box::new(TyTyKind));
 547     store.register_lints(&Diagnostics::get_lints());
 548     store.register_late_pass(|_| Box::new(Diagnostics));
 549     store.register_lints(&BadOptAccess::get_lints());
 550     store.register_late_pass(|_| Box::new(BadOptAccess));
 551     store.register_lints(&PassByValue::get_lints());
 552     store.register_late_pass(|_| Box::new(PassByValue));
 553     // FIXME(davidtwco): deliberately do not include `UNTRANSLATABLE_DIAGNOSTIC` and
 554     // `DIAGNOSTIC_OUTSIDE_OF_IMPL` here because `-Wrustc::internal` is provided to every crate and
 555     // these lints will trigger all of the time - change this once migration to diagnostic structs
 556     // and translation is completed
 557     store.register_group(
 558         false,
 559         "rustc::internal",
 560         None,
 561         vec![
 562             LintId::of(DEFAULT_HASH_TYPES),
 563             LintId::of(POTENTIAL_QUERY_INSTABILITY),
 564             LintId::of(USAGE_OF_TY_TYKIND),
 565             LintId::of(PASS_BY_VALUE),
 566             LintId::of(LINT_PASS_IMPL_WITHOUT_MACRO),
 567             LintId::of(USAGE_OF_QUALIFIED_TY),
 568             LintId::of(EXISTING_DOC_KEYWORD),
 569             LintId::of(BAD_OPT_ACCESS),
 570         ],
 571     );
 572 }
 573
 574 #[cfg(test)]
 575 mod tests;