Module internal 

Some lints that are only useful in the compiler or crates that use compiler internals, such as Clippy.

Structs

BadOptAccess

DefaultHashTypes

Diagnostics

ImplicitSysrootCrateImport

LintPassImpl

QueryStability

SpanUseEqCtxt

SymbolInternStringLiteral

TyTyKind

TypeIr

Statics

BAD_OPT_ACCESS

The bad_opt_access lint detects accessing options by field instead of the wrapper function.

DEFAULT_HASH_TYPES

The default_hash_type lint detects use of std::collections::HashMap and std::collections::HashSet, suggesting the use of FxHashMap/FxHashSet.

DIAGNOSTIC_OUTSIDE_OF_IMPL

The diagnostic_outside_of_impl lint detects calls to functions annotated with #[rustc_lint_diagnostics] that are outside an Diagnostic, Subdiagnostic, or LintDiagnostic impl (either hand-written or derived).

DIRECT_USE_OF_RUSTC_TYPE_IR

The direct_use_of_rustc_type_ir lint detects usage of rustc_type_ir.

IMPLICIT_SYSROOT_CRATE_IMPORT

The implicit_sysroot_crate_import detects use of extern crate to import non-sysroot crates (e.g. crates.io deps) from the sysroot, which is dangerous because these crates are not guaranteed to exist exactly once, and so may be missing entirely or appear multiple times resulting in ambiguity.

LINT_PASS_IMPL_WITHOUT_MACRO

The lint_pass_impl_without_macro detects manual implementations of a lint pass, without using declare_lint_pass or [impl_lint_pass].

NON_GLOB_IMPORT_OF_TYPE_IR_INHERENT

The non_glob_import_of_type_ir_inherent_item lint detects non-glob imports of module rustc_type_ir::inherent.

POTENTIAL_QUERY_INSTABILITY

The potential_query_instability lint detects use of methods which can lead to potential query instability, such as iterating over a HashMap.

SPAN_USE_EQ_CTXT

SYMBOL_INTERN_STRING_LITERAL

The symbol_intern_string_literal detects Symbol::intern being called on a string literal

UNTRACKED_QUERY_INFORMATION

The untracked_query_information lint detects use of methods which leak information not tracked by the query system, such as whether a Steal<T> value has already been stolen. In order not to break incremental compilation, such methods must be used very carefully or not at all.

UNTRANSLATABLE_DIAGNOSTIC

The untranslatable_diagnostic lint detects messages passed to functions with impl Into<{D,Subd}iagMessage parameters without using translatable Fluent strings.

USAGE_OF_QUALIFIED_TY

The usage_of_qualified_ty lint detects usages of ty::TyKind, where Ty should be used instead.

USAGE_OF_TYPE_IR_INHERENT

The usage_of_type_ir_inherent lint detects usage of rustc_type_ir::inherent.

USAGE_OF_TYPE_IR_TRAITS

The usage_of_type_ir_traits lint detects usage of rustc_type_ir::Interner, or rustc_infer::InferCtxtLike.

USAGE_OF_TY_TYKIND

The usage_of_ty_tykind lint detects usages of ty::TyKind::<kind>, where ty::<kind> would suffice.

Functions

gen_args 🔒

get_callee_span_generic_args_and_args 🔒

Checks whether an expression is a function or method call and, if so, returns its DefId, Span, GenericArgs, and arguments. This is a slight augmentation of a similarly named Clippy function, get_callee_generic_args_and_args.

has_unstable_into_iter_predicate 🔒

is_span_ctxt_call 🔒

is_ty_or_ty_ctxt 🔒

lint_ty_kind_usage 🔒