Struct rustc_ast_lowering::index::NodeCollector

pub(crate) struct NodeCollector<'a, 'hir> {
    tcx: TyCtxt<'hir>,
    bodies: &'a SortedMap<ItemLocalId, &'hir Body<'hir>>,
    nodes: IndexVec<ItemLocalId, Option<ParentedNode<'hir>>>,
    parenting: FxHashMap<LocalDefId, ItemLocalId>,
    parent_node: ItemLocalId,
    owner: OwnerId,
}

A visitor that walks over the HIR and collects Nodes into a HIR map.

Fields

tcx: TyCtxt<'hir>

bodies: &'a SortedMap<ItemLocalId, &'hir Body<'hir>>

nodes: IndexVec<ItemLocalId, Option<ParentedNode<'hir>>>

Outputs

parenting: FxHashMap<LocalDefId, ItemLocalId>

parent_node: ItemLocalId

The parent of this node

owner: OwnerId

Implementations

impl<'a, 'hir> NodeCollector<'a, 'hir>

fn insert(&mut self, span: Span, hir_id: HirId, node: Node<'hir>)

fn with_parent<F: FnOnce(&mut Self)>(&mut self, parent_node_id: HirId, f: F)

fn insert_nested(&mut self, item: LocalDefId)

Trait Implementations

impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir>

fn visit_nested_item(&mut self, item: ItemId)

Because we want to track parent items and so forth, enable deep walking so that we walk nested items in the context of their outer items.

fn visit_nested_trait_item(&mut self, item_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, item_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, foreign_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: &'hir Param<'hir>)

fn visit_item(&mut self, i: &'hir Item<'hir>)

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

fn visit_foreign_item(&mut self, fi: &'hir ForeignItem<'hir>)

fn visit_generic_param(&mut self, param: &'hir GenericParam<'hir>)

fn visit_const_param_default(&mut self, param: HirId, ct: &'hir AnonConst)

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

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

fn visit_pat(&mut self, pat: &'hir Pat<'hir>)

fn visit_pat_field(&mut self, field: &'hir PatField<'hir>)

fn visit_arm(&mut self, arm: &'hir Arm<'hir>)

fn visit_anon_const(&mut self, constant: &'hir AnonConst)

fn visit_inline_const(&mut self, constant: &'hir ConstBlock)

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

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

fn visit_stmt(&mut self, stmt: &'hir Stmt<'hir>)

fn visit_path_segment(&mut self, path_segment: &'hir PathSegment<'hir>)

fn visit_ty(&mut self, ty: &'hir Ty<'hir>)

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

fn visit_trait_ref(&mut self, tr: &'hir TraitRef<'hir>)

fn visit_block(&mut self, block: &'hir Block<'hir>)

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

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

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

fn visit_field_def(&mut self, field: &'hir FieldDef<'hir>)

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

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

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

fn visit_foreign_item_ref(&mut self, fi: &'hir ForeignItemRef)

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

type NestedFilter = None

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

If type NestedFilter is set to visit nested items, this method must also be overridden to provide a map to retrieve nested items.

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

fn visit_id(&mut self, _hir_id: HirId)

fn visit_name(&mut self, _name: Symbol)

fn visit_ident(&mut self, ident: Ident)

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

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

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

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

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

fn visit_fn_ret_ty(&mut self, ret_ty: &'v FnRetTy<'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, _: Span, id: LocalDefId )

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

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

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

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

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

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

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

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

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

fn visit_generic_args(&mut self, generic_args: &'v GenericArgs<'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