#![allow(internal_features)]
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![doc(rust_logo)]
#![feature(array_windows)]
#![feature(assert_matches)]
#![feature(box_patterns)]
#![feature(extract_if)]
#![feature(if_let_guard)]
#![feature(iter_order_by)]
#![feature(let_chains)]
#![feature(rustc_attrs)]
#![feature(rustdoc_internals)]
#![feature(trait_upcasting)]
#![warn(unreachable_pub)]
mod async_closures;
mod async_fn_in_trait;
pub mod builtin;
mod context;
mod dangling;
mod deref_into_dyn_supertrait;
mod drop_forget_useless;
mod early;
mod enum_intrinsics_non_enums;
mod errors;
mod expect;
mod for_loops_over_fallibles;
mod foreign_modules;
pub mod hidden_unicode_codepoints;
mod if_let_rescope;
mod impl_trait_overcaptures;
mod internal;
mod invalid_from_utf8;
mod late;
mod let_underscore;
mod levels;
mod lints;
mod macro_expr_fragment_specifier_2024_migration;
mod map_unit_fn;
mod multiple_supertrait_upcastable;
mod non_ascii_idents;
mod non_fmt_panic;
mod non_local_def;
mod nonstandard_style;
mod noop_method_call;
mod opaque_hidden_inferred_bound;
mod pass_by_value;
mod passes;
mod precedence;
mod ptr_nulls;
mod redundant_semicolon;
mod reference_casting;
mod shadowed_into_iter;
mod static_mut_refs;
mod traits;
mod types;
mod unit_bindings;
mod unqualified_local_imports;
mod unused;
use async_closures::AsyncClosureUsage;
use async_fn_in_trait::AsyncFnInTrait;
use builtin::*;
use dangling::*;
use deref_into_dyn_supertrait::*;
use drop_forget_useless::*;
use enum_intrinsics_non_enums::EnumIntrinsicsNonEnums;
use for_loops_over_fallibles::*;
use hidden_unicode_codepoints::*;
use if_let_rescope::IfLetRescope;
use impl_trait_overcaptures::ImplTraitOvercaptures;
use internal::*;
use invalid_from_utf8::*;
use let_underscore::*;
use macro_expr_fragment_specifier_2024_migration::*;
use map_unit_fn::*;
use multiple_supertrait_upcastable::*;
use non_ascii_idents::*;
use non_fmt_panic::NonPanicFmt;
use non_local_def::*;
use nonstandard_style::*;
use noop_method_call::*;
use opaque_hidden_inferred_bound::*;
use pass_by_value::*;
use precedence::*;
use ptr_nulls::*;
use redundant_semicolon::*;
use reference_casting::*;
use rustc_hir::def_id::LocalModDefId;
use rustc_middle::query::Providers;
use rustc_middle::ty::TyCtxt;
use shadowed_into_iter::ShadowedIntoIter;
pub use shadowed_into_iter::{ARRAY_INTO_ITER, BOXED_SLICE_INTO_ITER};
use static_mut_refs::*;
use traits::*;
use types::*;
use unit_bindings::*;
use unqualified_local_imports::*;
use unused::*;
#[rustfmt::skip]
pub use builtin::{MissingDoc, SoftLints};
pub use context::{
CheckLintNameResult, EarlyContext, FindLintError, LateContext, LintContext, LintStore,
};
pub use early::{EarlyCheckNode, check_ast_node};
pub use late::{check_crate, late_lint_mod, unerased_lint_store};
pub use passes::{EarlyLintPass, LateLintPass};
pub use rustc_session::lint::Level::{self, *};
pub use rustc_session::lint::{
BufferedEarlyLint, FutureIncompatibleInfo, Lint, LintId, LintPass, LintVec,
};
rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
pub fn provide(providers: &mut Providers) {
levels::provide(providers);
expect::provide(providers);
foreign_modules::provide(providers);
*providers = Providers { lint_mod, ..*providers };
}
fn lint_mod(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) {
late_lint_mod(tcx, module_def_id, BuiltinCombinedModuleLateLintPass::new());
}
early_lint_methods!(
declare_combined_early_lint_pass,
[
pub BuiltinCombinedPreExpansionLintPass,
[
KeywordIdents: KeywordIdents,
]
]
);
early_lint_methods!(
declare_combined_early_lint_pass,
[
pub BuiltinCombinedEarlyLintPass,
[
UnusedParens: UnusedParens::default(),
UnusedBraces: UnusedBraces,
UnusedImportBraces: UnusedImportBraces,
UnsafeCode: UnsafeCode,
SpecialModuleName: SpecialModuleName,
AnonymousParameters: AnonymousParameters,
EllipsisInclusiveRangePatterns: EllipsisInclusiveRangePatterns::default(),
NonCamelCaseTypes: NonCamelCaseTypes,
DeprecatedAttr: DeprecatedAttr::default(),
WhileTrue: WhileTrue,
NonAsciiIdents: NonAsciiIdents,
HiddenUnicodeCodepoints: HiddenUnicodeCodepoints,
IncompleteInternalFeatures: IncompleteInternalFeatures,
RedundantSemicolons: RedundantSemicolons,
UnusedDocComment: UnusedDocComment,
Expr2024: Expr2024,
Precedence: Precedence,
]
]
);
late_lint_methods!(
declare_combined_late_lint_pass,
[
BuiltinCombinedModuleLateLintPass,
[
ForLoopsOverFallibles: ForLoopsOverFallibles,
DerefIntoDynSupertrait: DerefIntoDynSupertrait,
DropForgetUseless: DropForgetUseless,
ImproperCTypesDeclarations: ImproperCTypesDeclarations,
ImproperCTypesDefinitions: ImproperCTypesDefinitions,
InvalidFromUtf8: InvalidFromUtf8,
VariantSizeDifferences: VariantSizeDifferences,
PathStatements: PathStatements,
LetUnderscore: LetUnderscore,
InvalidReferenceCasting: InvalidReferenceCasting,
UnusedResults: UnusedResults,
UnitBindings: UnitBindings,
NonUpperCaseGlobals: NonUpperCaseGlobals,
NonShorthandFieldPatterns: NonShorthandFieldPatterns,
UnusedAllocation: UnusedAllocation,
MissingCopyImplementations: MissingCopyImplementations,
PtrNullChecks: PtrNullChecks,
MutableTransmutes: MutableTransmutes,
TypeAliasBounds: TypeAliasBounds,
TrivialConstraints: TrivialConstraints,
TypeLimits: TypeLimits::new(),
NonSnakeCase: NonSnakeCase,
InvalidNoMangleItems: InvalidNoMangleItems,
UnreachablePub: UnreachablePub,
ExplicitOutlivesRequirements: ExplicitOutlivesRequirements,
InvalidValue: InvalidValue,
DerefNullPtr: DerefNullPtr,
UnstableFeatures: UnstableFeatures,
UngatedAsyncFnTrackCaller: UngatedAsyncFnTrackCaller,
ShadowedIntoIter: ShadowedIntoIter,
DropTraitConstraints: DropTraitConstraints,
DanglingPointers: DanglingPointers,
NonPanicFmt: NonPanicFmt,
NoopMethodCall: NoopMethodCall,
EnumIntrinsicsNonEnums: EnumIntrinsicsNonEnums,
InvalidAtomicOrdering: InvalidAtomicOrdering,
AsmLabels: AsmLabels,
OpaqueHiddenInferredBound: OpaqueHiddenInferredBound,
MultipleSupertraitUpcastable: MultipleSupertraitUpcastable,
MapUnitFn: MapUnitFn,
MissingDebugImplementations: MissingDebugImplementations,
MissingDoc: MissingDoc,
AsyncClosureUsage: AsyncClosureUsage,
AsyncFnInTrait: AsyncFnInTrait,
NonLocalDefinitions: NonLocalDefinitions::default(),
ImplTraitOvercaptures: ImplTraitOvercaptures,
IfLetRescope: IfLetRescope::default(),
StaticMutRefs: StaticMutRefs,
UnqualifiedLocalImports: UnqualifiedLocalImports,
]
]
);
pub fn new_lint_store(internal_lints: bool) -> LintStore {
let mut lint_store = LintStore::new();
register_builtins(&mut lint_store);
if internal_lints {
register_internals(&mut lint_store);
}
lint_store
}
fn register_builtins(store: &mut LintStore) {
macro_rules! add_lint_group {
($name:expr, $($lint:ident),*) => (
store.register_group(false, $name, None, vec![$(LintId::of($lint)),*]);
)
}
store.register_lints(&BuiltinCombinedPreExpansionLintPass::get_lints());
store.register_lints(&BuiltinCombinedEarlyLintPass::get_lints());
store.register_lints(&BuiltinCombinedModuleLateLintPass::get_lints());
store.register_lints(&foreign_modules::get_lints());
store.register_lints(&HardwiredLints::lint_vec());
add_lint_group!(
"nonstandard_style",
NON_CAMEL_CASE_TYPES,
NON_SNAKE_CASE,
NON_UPPER_CASE_GLOBALS
);
add_lint_group!(
"unused",
UNUSED_IMPORTS,
UNUSED_VARIABLES,
UNUSED_ASSIGNMENTS,
DEAD_CODE,
UNUSED_MUT,
UNREACHABLE_CODE,
UNREACHABLE_PATTERNS,
UNUSED_MUST_USE,
UNUSED_UNSAFE,
PATH_STATEMENTS,
UNUSED_ATTRIBUTES,
UNUSED_MACROS,
UNUSED_MACRO_RULES,
UNUSED_ALLOCATION,
UNUSED_DOC_COMMENTS,
UNUSED_EXTERN_CRATES,
UNUSED_FEATURES,
UNUSED_LABELS,
UNUSED_PARENS,
UNUSED_BRACES,
REDUNDANT_SEMICOLONS,
MAP_UNIT_FN
);
add_lint_group!("let_underscore", LET_UNDERSCORE_DROP, LET_UNDERSCORE_LOCK);
add_lint_group!(
"rust_2018_idioms",
BARE_TRAIT_OBJECTS,
UNUSED_EXTERN_CRATES,
ELLIPSIS_INCLUSIVE_RANGE_PATTERNS,
ELIDED_LIFETIMES_IN_PATHS,
EXPLICIT_OUTLIVES_REQUIREMENTS );
add_lint_group!("keyword_idents", KEYWORD_IDENTS_2018, KEYWORD_IDENTS_2024);
add_lint_group!(
"refining_impl_trait",
REFINING_IMPL_TRAIT_REACHABLE,
REFINING_IMPL_TRAIT_INTERNAL
);
add_lint_group!("deprecated_safe", DEPRECATED_SAFE_2024);
store.register_renamed("single_use_lifetime", "single_use_lifetimes");
store.register_renamed("elided_lifetime_in_path", "elided_lifetimes_in_paths");
store.register_renamed("bare_trait_object", "bare_trait_objects");
store.register_renamed("unstable_name_collision", "unstable_name_collisions");
store.register_renamed("unused_doc_comment", "unused_doc_comments");
store.register_renamed("async_idents", "keyword_idents_2018");
store.register_renamed("exceeding_bitshifts", "arithmetic_overflow");
store.register_renamed("redundant_semicolon", "redundant_semicolons");
store.register_renamed("overlapping_patterns", "overlapping_range_endpoints");
store.register_renamed("disjoint_capture_migration", "rust_2021_incompatible_closure_captures");
store.register_renamed("or_patterns_back_compat", "rust_2021_incompatible_or_patterns");
store.register_renamed("non_fmt_panic", "non_fmt_panics");
store.register_renamed("unused_tuple_struct_fields", "dead_code");
store.register_renamed("static_mut_ref", "static_mut_refs");
store.register_renamed("temporary_cstring_as_ptr", "dangling_pointers_from_temporaries");
const RUSTDOC_LINTS: &[&str] = &[
"broken_intra_doc_links",
"private_intra_doc_links",
"missing_crate_level_docs",
"missing_doc_code_examples",
"private_doc_tests",
"invalid_codeblock_attributes",
"invalid_html_tags",
"non_autolinks",
];
for rustdoc_lint in RUSTDOC_LINTS {
store.register_ignored(rustdoc_lint);
}
store.register_removed(
"intra_doc_link_resolution_failure",
"use `rustdoc::broken_intra_doc_links` instead",
);
store.register_removed("rustdoc", "use `rustdoc::all` instead");
store.register_removed("unknown_features", "replaced by an error");
store.register_removed("unsigned_negation", "replaced by negate_unsigned feature gate");
store.register_removed("negate_unsigned", "cast a signed value instead");
store.register_removed("raw_pointer_derive", "using derive with raw pointers is ok");
store.register_group_alias("nonstandard_style", "bad_style");
store.register_removed("raw_pointer_deriving", "using derive with raw pointers is ok");
store.register_removed("drop_with_repr_extern", "drop flags have been removed");
store.register_removed("fat_ptr_transmutes", "was accidentally removed back in 2014");
store.register_removed("deprecated_attr", "use `deprecated` instead");
store.register_removed(
"transmute_from_fn_item_types",
"always cast functions before transmuting them",
);
store.register_removed(
"hr_lifetime_in_assoc_type",
"converted into hard error, see issue #33685 \
<https://github.com/rust-lang/rust/issues/33685> for more information",
);
store.register_removed(
"inaccessible_extern_crate",
"converted into hard error, see issue #36886 \
<https://github.com/rust-lang/rust/issues/36886> for more information",
);
store.register_removed(
"super_or_self_in_global_path",
"converted into hard error, see issue #36888 \
<https://github.com/rust-lang/rust/issues/36888> for more information",
);
store.register_removed(
"overlapping_inherent_impls",
"converted into hard error, see issue #36889 \
<https://github.com/rust-lang/rust/issues/36889> for more information",
);
store.register_removed(
"illegal_floating_point_constant_pattern",
"converted into hard error, see issue #36890 \
<https://github.com/rust-lang/rust/issues/36890> for more information",
);
store.register_removed(
"illegal_struct_or_enum_constant_pattern",
"converted into hard error, see issue #36891 \
<https://github.com/rust-lang/rust/issues/36891> for more information",
);
store.register_removed(
"lifetime_underscore",
"converted into hard error, see issue #36892 \
<https://github.com/rust-lang/rust/issues/36892> for more information",
);
store.register_removed(
"extra_requirement_in_impl",
"converted into hard error, see issue #37166 \
<https://github.com/rust-lang/rust/issues/37166> for more information",
);
store.register_removed(
"legacy_imports",
"converted into hard error, see issue #38260 \
<https://github.com/rust-lang/rust/issues/38260> for more information",
);
store.register_removed(
"coerce_never",
"converted into hard error, see issue #48950 \
<https://github.com/rust-lang/rust/issues/48950> for more information",
);
store.register_removed(
"resolve_trait_on_defaulted_unit",
"converted into hard error, see issue #48950 \
<https://github.com/rust-lang/rust/issues/48950> for more information",
);
store.register_removed(
"private_no_mangle_fns",
"no longer a warning, `#[no_mangle]` functions always exported",
);
store.register_removed(
"private_no_mangle_statics",
"no longer a warning, `#[no_mangle]` statics always exported",
);
store.register_removed("bad_repr", "replaced with a generic attribute input check");
store.register_removed(
"duplicate_matcher_binding_name",
"converted into hard error, see issue #57742 \
<https://github.com/rust-lang/rust/issues/57742> for more information",
);
store.register_removed(
"incoherent_fundamental_impls",
"converted into hard error, see issue #46205 \
<https://github.com/rust-lang/rust/issues/46205> for more information",
);
store.register_removed(
"legacy_constructor_visibility",
"converted into hard error, see issue #39207 \
<https://github.com/rust-lang/rust/issues/39207> for more information",
);
store.register_removed(
"legacy_directory_ownership",
"converted into hard error, see issue #37872 \
<https://github.com/rust-lang/rust/issues/37872> for more information",
);
store.register_removed(
"safe_extern_statics",
"converted into hard error, see issue #36247 \
<https://github.com/rust-lang/rust/issues/36247> for more information",
);
store.register_removed(
"parenthesized_params_in_types_and_modules",
"converted into hard error, see issue #42238 \
<https://github.com/rust-lang/rust/issues/42238> for more information",
);
store.register_removed(
"duplicate_macro_exports",
"converted into hard error, see issue #35896 \
<https://github.com/rust-lang/rust/issues/35896> for more information",
);
store.register_removed(
"nested_impl_trait",
"converted into hard error, see issue #59014 \
<https://github.com/rust-lang/rust/issues/59014> for more information",
);
store.register_removed("plugin_as_library", "plugins have been deprecated and retired");
store.register_removed(
"unsupported_naked_functions",
"converted into hard error, see RFC 2972 \
<https://github.com/rust-lang/rfcs/blob/master/text/2972-constrained-naked.md> for more information",
);
store.register_removed(
"mutable_borrow_reservation_conflict",
"now allowed, see issue #59159 \
<https://github.com/rust-lang/rust/issues/59159> for more information",
);
store.register_removed(
"const_err",
"converted into hard error, see issue #71800 \
<https://github.com/rust-lang/rust/issues/71800> for more information",
);
store.register_removed(
"safe_packed_borrows",
"converted into hard error, see issue #82523 \
<https://github.com/rust-lang/rust/issues/82523> for more information",
);
store.register_removed(
"unaligned_references",
"converted into hard error, see issue #82523 \
<https://github.com/rust-lang/rust/issues/82523> for more information",
);
store.register_removed(
"private_in_public",
"replaced with another group of lints, see RFC \
<https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information",
);
store.register_removed(
"invalid_alignment",
"converted into hard error, see PR #104616 \
<https://github.com/rust-lang/rust/pull/104616> for more information",
);
store.register_removed(
"implied_bounds_entailment",
"converted into hard error, see PR #117984 \
<https://github.com/rust-lang/rust/pull/117984> for more information",
);
store.register_removed(
"coinductive_overlap_in_coherence",
"converted into hard error, see PR #118649 \
<https://github.com/rust-lang/rust/pull/118649> for more information",
);
store.register_removed(
"illegal_floating_point_literal_pattern",
"no longer a warning, float patterns behave the same as `==`",
);
store.register_removed(
"nontrivial_structural_match",
"no longer needed, see RFC #3535 \
<https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
);
store.register_removed(
"suspicious_auto_trait_impls",
"no longer needed, see issue #93367 \
<https://github.com/rust-lang/rust/issues/93367> for more information",
);
store.register_removed(
"const_patterns_without_partial_eq",
"converted into hard error, see RFC #3535 \
<https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
);
store.register_removed(
"indirect_structural_match",
"converted into hard error, see RFC #3535 \
<https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
);
store.register_removed(
"deprecated_cfg_attr_crate_type_name",
"converted into hard error, see issue #91632 \
<https://github.com/rust-lang/rust/issues/91632> for more information",
);
store.register_removed(
"pointer_structural_match",
"converted into hard error, see RFC #3535 \
<https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information",
);
store.register_removed(
"box_pointers",
"it does not detect other kinds of allocations, and existed only for historical reasons",
);
store.register_removed(
"byte_slice_in_packed_struct_with_derive",
"converted into hard error, see issue #107457 \
<https://github.com/rust-lang/rust/issues/107457> for more information",
);
store.register_removed("writes_through_immutable_pointer", "converted into hard error");
store.register_removed(
"const_eval_mutable_ptr_in_final_value",
"partially allowed now, otherwise turned into a hard error",
);
store.register_removed(
"where_clauses_object_safety",
"converted into hard error, see PR #125380 \
<https://github.com/rust-lang/rust/pull/125380> for more information",
);
store.register_removed("unsupported_calling_conventions", "converted into hard error");
}
fn register_internals(store: &mut LintStore) {
store.register_lints(&LintPassImpl::lint_vec());
store.register_early_pass(|| Box::new(LintPassImpl));
store.register_lints(&DefaultHashTypes::lint_vec());
store.register_late_mod_pass(|_| Box::new(DefaultHashTypes));
store.register_lints(&QueryStability::lint_vec());
store.register_late_mod_pass(|_| Box::new(QueryStability));
store.register_lints(&ExistingDocKeyword::lint_vec());
store.register_late_mod_pass(|_| Box::new(ExistingDocKeyword));
store.register_lints(&TyTyKind::lint_vec());
store.register_late_mod_pass(|_| Box::new(TyTyKind));
store.register_lints(&TypeIr::lint_vec());
store.register_late_mod_pass(|_| Box::new(TypeIr));
store.register_lints(&Diagnostics::lint_vec());
store.register_late_mod_pass(|_| Box::new(Diagnostics));
store.register_lints(&BadOptAccess::lint_vec());
store.register_late_mod_pass(|_| Box::new(BadOptAccess));
store.register_lints(&PassByValue::lint_vec());
store.register_late_mod_pass(|_| Box::new(PassByValue));
store.register_lints(&SpanUseEqCtxt::lint_vec());
store.register_late_mod_pass(|_| Box::new(SpanUseEqCtxt));
store.register_group(false, "rustc::internal", None, vec![
LintId::of(DEFAULT_HASH_TYPES),
LintId::of(POTENTIAL_QUERY_INSTABILITY),
LintId::of(UNTRACKED_QUERY_INFORMATION),
LintId::of(USAGE_OF_TY_TYKIND),
LintId::of(PASS_BY_VALUE),
LintId::of(LINT_PASS_IMPL_WITHOUT_MACRO),
LintId::of(USAGE_OF_QUALIFIED_TY),
LintId::of(NON_GLOB_IMPORT_OF_TYPE_IR_INHERENT),
LintId::of(EXISTING_DOC_KEYWORD),
LintId::of(BAD_OPT_ACCESS),
LintId::of(SPAN_USE_EQ_CTXT),
]);
}
#[cfg(test)]
mod tests;