Struct rustc_privacy::TypePrivacyVisitor

pub(crate) struct TypePrivacyVisitor<'tcx> {
    tcx: TyCtxt<'tcx>,
    maybe_typeck_results: Option<&'tcx TypeckResults<'tcx>>,
    current_item: LocalDefId,
    span: Span,
}

Type privacy visitor, checks types for privacy and reports violations. Both explicitly written types and inferred types of expressions and patterns are checked. Checks are performed on “semantic” types regardless of names and their hygiene.

Fields

tcx: TyCtxt<'tcx>

maybe_typeck_results: Option<&'tcx TypeckResults<'tcx>>

current_item: LocalDefId

span: Span

Implementations

impl<'tcx> TypePrivacyVisitor<'tcx>

pub(crate) fn typeck_results(&self) -> &'tcx TypeckResults<'tcx>

Gets the type-checking results for the current body. As this will ICE if called outside bodies, only call when working with Expr or Pat nodes (they are guaranteed to be found only in bodies).

pub(crate) fn item_is_accessible(&self, did: DefId) -> bool

pub(crate) fn check_expr_pat_type(&mut self, id: HirId, span: Span) -> bool

pub(crate) fn check_def_id(
    &mut self,
    def_id: DefId,
    kind: &str,
    descr: &dyn Display
) -> bool

Trait Implementations

impl<'tcx> DefIdVisitor<'tcx> for TypePrivacyVisitor<'tcx>

fn tcx(&self) -> TyCtxt<'tcx>

fn visit_def_id(
    &mut self,
    def_id: DefId,
    kind: &str,
    descr: &dyn Display
) -> ControlFlow<Self::BreakTy>

type BreakTy = ()

fn shallow(&self) -> bool

fn skip_assoc_tys(&self) -> bool

fn skeleton(&mut self) -> DefIdVisitorSkeleton<'_, 'tcx, Self>

Not overridden, but used to actually visit types and traits.

fn visit(
    &mut self,
    ty_fragment: impl TypeFoldable<'tcx>
) -> ControlFlow<Self::BreakTy>

fn visit_trait(
    &mut self,
    trait_ref: TraitRef<'tcx>
) -> ControlFlow<Self::BreakTy>

fn visit_projection_ty(
    &mut self,
    projection: ProjectionTy<'tcx>
) -> ControlFlow<Self::BreakTy>

fn visit_predicates(
    &mut self,
    predicates: GenericPredicates<'tcx>
) -> ControlFlow<Self::BreakTy>

impl<'tcx> Visitor<'tcx> for TypePrivacyVisitor<'tcx>

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

We want to visit items in the context of their containing module and so forth, so supply a crate for doing a deep walk.

type Map = Map<'tcx>

fn visit_mod(&mut self, _m: &'tcx Mod<'tcx>, _s: Span, _n: HirId)

fn visit_nested_body(&mut self, body: BodyId)

Invoked to visit the body of a function, method or closure. Like visit_nested_item, does nothing by default unless you override nested_visit_map to return other than None, in which case it will walk the body.

fn visit_generic_arg(&mut self, generic_arg: &'tcx GenericArg<'tcx>)

fn visit_ty(&mut self, hir_ty: &'tcx Ty<'tcx>)

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

fn visit_trait_ref(&mut self, trait_ref: &'tcx TraitRef<'tcx>)

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

fn visit_qpath(&mut self, qpath: &'tcx QPath<'tcx>, id: HirId, span: Span)

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

fn visit_local(&mut self, local: &'tcx Local<'tcx>)

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

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

fn visit_nested_item(&mut self, id: ItemId)

Invoked when a nested item is encountered. By default does nothing unless you override nested_visit_map to return other than None, in which case it will walk the item. You probably don’t want to override this method – instead, override nested_visit_map or use the “shallow” or “deep” visit patterns described on itemlikevisit::ItemLikeVisitor. 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)

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)

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)

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

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

fn visit_body(&mut self, b: &'v Body<'v>)

fn as_deep_visitor(&mut self) -> DeepVisitor<'_, Self>

When invoking visit_all_item_likes(), you need to supply an item-like visitor. This method converts an “intra-visit” visitor into an item-like visitor that walks the entire tree. If you use this, you probably don’t want to process the contents of nested item-like things, since the outer loop will visit them as well.

fn visit_id(&mut self, _hir_id: HirId)

fn visit_name(&mut self, _span: Span, _name: Symbol)

fn visit_ident(&mut self, ident: Ident)

fn visit_foreign_item(&mut self, i: &'v ForeignItem<'v>)

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

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

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

fn visit_anon_const(&mut self, c: &'v AnonConst)

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

fn visit_const_param_default(&mut self, _param: HirId, ct: &'v AnonConst)

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

fn visit_where_predicate(&mut self, predicate: &'v WherePredicate<'v>)

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

fn visit_fn(
    &mut self,
    fk: FnKind<'v>,
    fd: &'v FnDecl<'v>,
    b: BodyId,
    s: Span,
    id: HirId
)

fn visit_use(&mut self, path: &'v Path<'v>, hir_id: HirId)

fn visit_trait_item(&mut self, ti: &'v TraitItem<'v>)

fn visit_trait_item_ref(&mut self, ii: &'v TraitItemRef)

fn visit_impl_item(&mut self, ii: &'v ImplItem<'v>)

fn visit_foreign_item_ref(&mut self, ii: &'v ForeignItemRef)

fn visit_impl_item_ref(&mut self, ii: &'v ImplItemRef)

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

fn visit_poly_trait_ref(
    &mut self,
    t: &'v PolyTraitRef<'v>,
    m: TraitBoundModifier
)

fn visit_variant_data(
    &mut self,
    s: &'v VariantData<'v>,
    Symbol,
    &'v Generics<'v>,
    _parent_id: HirId,
    Span
)

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

fn visit_enum_def(
    &mut self,
    enum_definition: &'v EnumDef<'v>,
    generics: &'v Generics<'v>,
    item_id: HirId,
    Span
)

fn visit_variant(
    &mut self,
    v: &'v Variant<'v>,
    g: &'v Generics<'v>,
    item_id: HirId
)

fn visit_label(&mut self, label: &'v Label)

fn visit_lifetime(&mut self, lifetime: &'v Lifetime)

fn visit_path(&mut self, path: &'v Path<'v>, _id: HirId)

fn visit_path_segment(
    &mut self,
    path_span: Span,
    path_segment: &'v PathSegment<'v>
)

fn visit_generic_args(
    &mut self,
    path_span: Span,
    generic_args: &'v GenericArgs<'v>
)

fn visit_assoc_type_binding(&mut self, type_binding: &'v TypeBinding<'v>)

fn visit_attribute(&mut self, _id: HirId, _attr: &'v Attribute)

fn visit_vis(&mut self, vis: &'v Spanned<VisibilityKind<'v>>)

fn visit_associated_item_kind(&mut self, kind: &'v AssocItemKind)

fn visit_defaultness(&mut self, defaultness: &'v Defaultness)

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 32 bytes