Struct LateContextAndPass

struct LateContextAndPass<'tcx, T: LateLintPass<'tcx>> {
    context: LateContext<'tcx>,
    pass: T,
}

Implements the AST traversal for late lint passes. T provides the check_* methods.

Fields

context: LateContext<'tcx>

pass: T

Implementations

impl<'tcx, T: LateLintPass<'tcx>> LateContextAndPass<'tcx, T>

fn with_lint_attrs<F>(&mut self, id: HirId, f: F)

where F: FnOnce(&mut Self),

Merge the lints specified by any lint attributes into the current lint context, call the provided function, then reset the lints in effect to their previous state.

fn with_param_env<F>(&mut self, id: OwnerId, f: F)

where F: FnOnce(&mut Self),

fn process_mod(&mut self, m: &'tcx Mod<'tcx>, n: HirId)

Trait Implementations

impl<'tcx, T: LateLintPass<'tcx>> Visitor<'tcx> for LateContextAndPass<'tcx, T>

fn nested_visit_map(&mut self) -> Self::Map

Because lints are scoped lexically, we want to walk nested items in the context of the outer item, so enable deep-walking.

type NestedFilter = All

Override this type to control which nested HIR are visited; see [NestedFilter] for details. If you override this type, you must also override nested_visit_map.

fn visit_nested_body(&mut self, body_id: BodyId)

Invoked to visit the body of a function, method or closure. Like visit_nested_item, does nothing by default unless you override Self::NestedFilter.

fn visit_param(&mut self, param: &'tcx Param<'tcx>)

fn visit_body(&mut self, body: &Body<'tcx>)

fn visit_item(&mut self, it: &'tcx Item<'tcx>)

Visits the top-level item and (optionally) nested items / impl items. See visit_nested_item for details.

fn visit_foreign_item(&mut self, it: &'tcx ForeignItem<'tcx>)

fn visit_pat(&mut self, p: &'tcx Pat<'tcx>)

fn visit_expr_field(&mut self, field: &'tcx ExprField<'tcx>)

fn visit_expr(&mut self, e: &'tcx Expr<'tcx>)

fn visit_stmt(&mut self, s: &'tcx Stmt<'tcx>)

fn visit_fn( &mut self, fk: FnKind<'tcx>, decl: &'tcx FnDecl<'tcx>, body_id: BodyId, span: Span, id: LocalDefId, )

fn visit_variant_data(&mut self, s: &'tcx VariantData<'tcx>)

fn visit_field_def(&mut self, s: &'tcx FieldDef<'tcx>)

fn visit_variant(&mut self, v: &'tcx Variant<'tcx>)

fn visit_ty(&mut self, t: &'tcx Ty<'tcx>)

fn visit_infer(&mut self, inf: &'tcx InferArg)

fn visit_mod(&mut self, m: &'tcx Mod<'tcx>, _: Span, n: HirId)

fn visit_local(&mut self, l: &'tcx LetStmt<'tcx>)

fn visit_block(&mut self, b: &'tcx Block<'tcx>)

fn visit_arm(&mut self, a: &'tcx Arm<'tcx>)

fn visit_generic_param(&mut self, p: &'tcx GenericParam<'tcx>)

fn visit_generics(&mut self, g: &'tcx Generics<'tcx>)

fn visit_where_predicate(&mut self, p: &'tcx WherePredicate<'tcx>)

fn visit_poly_trait_ref(&mut self, t: &'tcx PolyTraitRef<'tcx>)

fn visit_trait_item(&mut self, trait_item: &'tcx TraitItem<'tcx>)

fn visit_impl_item(&mut self, impl_item: &'tcx ImplItem<'tcx>)

fn visit_lifetime(&mut self, lt: &'tcx Lifetime)

fn visit_path(&mut self, p: &Path<'tcx>, id: HirId)

type Map = <Self::NestedFilter as NestedFilter<'v>>::Map

type Result = ()

The result type of the visit_* methods. Can be either (), or ControlFlow<T>.

fn visit_nested_item(&mut self, id: ItemId) -> Self::Result

Invoked when a nested item is encountered. By default, when Self::NestedFilter is nested_filter::None, this method does nothing. You probably don’t want to override this method – instead, override [Self::NestedFilter] or use the “shallow” or “deep” visit patterns described at [rustc_hir::intravisit]. The only reason to override this method is if you want a nested pattern but cannot supply a [Map]; see nested_visit_map for advice.

fn visit_nested_trait_item(&mut self, id: TraitItemId) -> Self::Result

Like visit_nested_item(), but for trait items. See visit_nested_item() for advice on when to override this method.

fn visit_nested_impl_item(&mut self, id: ImplItemId) -> Self::Result

Like visit_nested_item(), but for impl items. See visit_nested_item() for advice on when to override this method.

fn visit_nested_foreign_item(&mut self, id: ForeignItemId) -> Self::Result

Like visit_nested_item(), but for foreign items. See visit_nested_item() for advice on when to override this method.

fn visit_id(&mut self, _hir_id: HirId) -> Self::Result

fn visit_name(&mut self, _name: Symbol) -> Self::Result

fn visit_ident(&mut self, ident: Ident) -> Self::Result

fn visit_pat_field(&mut self, f: &'v PatField<'v>) -> Self::Result

fn visit_array_length(&mut self, len: &'v ArrayLen<'v>) -> Self::Result

fn visit_anon_const(&mut self, c: &'v AnonConst) -> Self::Result

fn visit_inline_const(&mut self, c: &'v ConstBlock) -> Self::Result

fn visit_const_arg(&mut self, c: &'v ConstArg<'v>) -> Self::Result

fn visit_pattern_type_pattern(&mut self, _p: &'v Pat<'v>)

fn visit_const_param_default( &mut self, _param: HirId, ct: &'v ConstArg<'v>, ) -> Self::Result

fn visit_fn_ret_ty(&mut self, ret_ty: &'v FnRetTy<'v>) -> Self::Result

fn visit_fn_decl(&mut self, fd: &'v FnDecl<'v>) -> Self::Result

fn visit_use( &mut self, path: &'v Path<'v, SmallVec<[Res; 3]>>, hir_id: HirId, ) -> Self::Result

fn visit_trait_item_ref(&mut self, ii: &'v TraitItemRef) -> Self::Result

fn visit_foreign_item_ref(&mut self, ii: &'v ForeignItemRef) -> Self::Result

fn visit_impl_item_ref(&mut self, ii: &'v ImplItemRef) -> Self::Result

fn visit_trait_ref(&mut self, t: &'v TraitRef<'v>) -> Self::Result

fn visit_param_bound(&mut self, bounds: &'v GenericBound<'v>) -> Self::Result

fn visit_precise_capturing_arg( &mut self, arg: &'v PreciseCapturingArg<'v>, ) -> Self::Result

fn visit_opaque_ty(&mut self, opaque: &'v OpaqueTy<'v>) -> Self::Result

fn visit_enum_def( &mut self, enum_definition: &'v EnumDef<'v>, item_id: HirId, ) -> Self::Result

fn visit_label(&mut self, label: &'v Label) -> Self::Result

fn visit_generic_arg(&mut self, generic_arg: &'v GenericArg<'v>) -> Self::Result

fn visit_qpath( &mut self, qpath: &'v QPath<'v>, id: HirId, _span: Span, ) -> Self::Result

fn visit_path_segment( &mut self, path_segment: &'v PathSegment<'v>, ) -> Self::Result

fn visit_generic_args( &mut self, generic_args: &'v GenericArgs<'v>, ) -> Self::Result

fn visit_assoc_item_constraint( &mut self, constraint: &'v AssocItemConstraint<'v>, ) -> Self::Result

fn visit_attribute(&mut self, _attr: &'v Attribute) -> Self::Result

fn visit_associated_item_kind( &mut self, kind: &'v AssocItemKind, ) -> Self::Result

fn visit_defaultness(&mut self, defaultness: &'v Defaultness) -> Self::Result

fn visit_inline_asm( &mut self, asm: &'v InlineAsm<'v>, id: HirId, ) -> Self::Result

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.