Struct rustc_privacy::EmbargoVisitor

pub(crate) struct EmbargoVisitor<'tcx> {
    pub(crate) tcx: TyCtxt<'tcx>,
    pub(crate) access_levels: AccessLevels,
    pub(crate) macro_reachable: FxHashSet<(LocalDefId, LocalDefId)>,
    pub(crate) prev_level: Option<AccessLevel>,
    pub(crate) changed: bool,
}

The embargo visitor, used to determine the exports of the AST.

Fields

tcx: TyCtxt<'tcx>

access_levels: AccessLevels

Accessibility levels for reachable nodes.

macro_reachable: FxHashSet<(LocalDefId, LocalDefId)>

A set of pairs corresponding to modules, where the first module is reachable via a macro that’s defined in the second module. This cannot be represented as reachable because it can’t handle the following case:

pub mod n { // Should be Public pub(crate) mod p { // Should not be accessible pub fn f() -> i32 { 12 } // Must be Reachable } } pub macro m() { n::p::f() }

prev_level: Option<AccessLevel>

Previous accessibility level; None means unreachable.

changed: bool

Has something changed in the level map?

Implementations

impl<'tcx> EmbargoVisitor<'tcx>

pub(crate) fn get(&self, def_id: LocalDefId) -> Option<AccessLevel>

pub(crate) fn update_with_hir_id(
    &mut self,
    hir_id: HirId,
    level: Option<AccessLevel>
) -> Option<AccessLevel>

pub(crate) fn update(
    &mut self,
    def_id: LocalDefId,
    level: Option<AccessLevel>
) -> Option<AccessLevel>

Updates node level and returns the updated level.

pub(crate) fn reach(
    &mut self,
    def_id: LocalDefId,
    access_level: Option<AccessLevel>
) -> ReachEverythingInTheInterfaceVisitor<'_, 'tcx>

pub(crate) fn update_reachability_from_macro(
    &mut self,
    local_def_id: LocalDefId,
    md: &MacroDef
)

pub(crate) fn update_macro_reachable(
    &mut self,
    module_def_id: LocalDefId,
    defining_mod: LocalDefId
) -> bool

Updates the item as being reachable through a macro defined in the given module. Returns true if the level has changed.

pub(crate) fn update_macro_reachable_mod(
    &mut self,
    module_def_id: LocalDefId,
    defining_mod: LocalDefId
)

pub(crate) fn update_macro_reachable_def(
    &mut self,
    def_id: LocalDefId,
    def_kind: DefKind,
    vis: Visibility,
    module: LocalDefId
)

Trait Implementations

impl<'tcx> Visitor<'tcx> for EmbargoVisitor<'tcx>

fn nested_visit_map(&mut self) -> 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 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_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_block(&mut self, b: &'tcx Block<'tcx>)

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

fn visit_nested_item(&mut self, id: ItemId)

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 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_nested_body(&mut self, 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: &'v Param<'v>)

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

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_mod(&mut self, m: &'v Mod<'v>, _s: Span, n: HirId)

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

fn visit_local(&mut self, l: &'v Local<'v>)

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

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

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

fn visit_array_length(&mut self, len: &'v ArrayLen)

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

fn visit_expr(&mut self, ex: &'v Expr<'v>)

fn visit_let_expr(&mut self, lex: &'v Let<'v>)

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

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_trait_ref(&mut self, t: &'v TraitRef<'v>)

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_infer(&mut self, inf: &'v InferArg)

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

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

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

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, _attr: &'v Attribute)

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

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

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

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: 80 bytes