Struct rustc_resolve::check_unused::UnusedImportCheckVisitor

struct UnusedImportCheckVisitor<'a, 'b, 'tcx> {
    r: &'a mut Resolver<'b, 'tcx>,
    unused_imports: FxIndexMap<NodeId, UnusedImport<'a>>,
    extern_crate_items: Vec<ExternCrateToLint>,
    base_use_tree: Option<&'a UseTree>,
    base_id: NodeId,
    item_span: Span,
    base_use_is_pub: bool,
}

Fields

r: &'a mut Resolver<'b, 'tcx>

unused_imports: FxIndexMap<NodeId, UnusedImport<'a>>

All the (so far) unused imports, grouped path list

extern_crate_items: Vec<ExternCrateToLint>

base_use_tree: Option<&'a UseTree>

base_id: NodeId

item_span: Span

base_use_is_pub: bool

Implementations

impl<'a, 'b, 'tcx> UnusedImportCheckVisitor<'a, 'b, 'tcx>

fn check_import(&mut self, id: NodeId)

fn unused_import(&mut self, id: NodeId) -> &mut UnusedImport<'a>

fn check_import_as_underscore(&mut self, item: &UseTree, id: NodeId)

fn check_imports_as_underscore(&mut self, items: &[(UseTree, NodeId)])

Trait Implementations

impl<'a, 'b, 'tcx> Visitor<'a> for UnusedImportCheckVisitor<'a, 'b, 'tcx>

fn visit_item(&mut self, item: &'a Item)

fn visit_use_tree(&mut self, use_tree: &'a UseTree, id: NodeId, nested: bool)

fn visit_ident(&mut self, _ident: Ident)

fn visit_foreign_item(&mut self, i: &'ast Item<ForeignItemKind>)

fn visit_local(&mut self, l: &'ast Local)

fn visit_block(&mut self, b: &'ast Block)

fn visit_stmt(&mut self, s: &'ast Stmt)

fn visit_param(&mut self, param: &'ast Param)

fn visit_arm(&mut self, a: &'ast Arm)

fn visit_pat(&mut self, p: &'ast Pat)

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

fn visit_expr(&mut self, ex: &'ast Expr)

fn visit_method_receiver_expr(&mut self, ex: &'ast Expr)

This method is a hack to workaround unstable of stmt_expr_attributes. It can be removed once that feature is stabilized.

fn visit_expr_post(&mut self, _ex: &'ast Expr)

fn visit_ty(&mut self, t: &'ast Ty)

fn visit_generic_param(&mut self, param: &'ast GenericParam)

fn visit_generics(&mut self, g: &'ast Generics)

fn visit_closure_binder(&mut self, b: &'ast ClosureBinder)

fn visit_where_predicate(&mut self, p: &'ast WherePredicate)

fn visit_fn(&mut self, fk: FnKind<'ast>, _: Span, _: NodeId)

fn visit_assoc_item(&mut self, i: &'ast Item<AssocItemKind>, ctxt: AssocCtxt)

fn visit_trait_ref(&mut self, t: &'ast TraitRef)

fn visit_param_bound(&mut self, bounds: &'ast GenericBound, _ctxt: BoundKind)

fn visit_poly_trait_ref(&mut self, t: &'ast PolyTraitRef)

fn visit_variant_data(&mut self, s: &'ast VariantData)

fn visit_field_def(&mut self, s: &'ast FieldDef)

fn visit_enum_def(&mut self, enum_definition: &'ast EnumDef)

fn visit_variant(&mut self, v: &'ast Variant)

fn visit_variant_discr(&mut self, discr: &'ast AnonConst)

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

fn visit_lifetime(&mut self, lifetime: &'ast Lifetime, _: LifetimeCtxt)

fn visit_mac_call(&mut self, mac: &'ast MacCall)

fn visit_mac_def(&mut self, _mac: &'ast MacroDef, _id: NodeId)

fn visit_path(&mut self, path: &'ast Path, _id: NodeId)

fn visit_path_segment(&mut self, path_segment: &'ast PathSegment)

fn visit_generic_args(&mut self, generic_args: &'ast GenericArgs)

fn visit_generic_arg(&mut self, generic_arg: &'ast GenericArg)

fn visit_assoc_constraint(&mut self, constraint: &'ast AssocConstraint)

fn visit_attribute(&mut self, attr: &'ast Attribute)

fn visit_vis(&mut self, vis: &'ast Visibility)

fn visit_fn_ret_ty(&mut self, ret_ty: &'ast FnRetTy)

fn visit_fn_header(&mut self, _header: &'ast FnHeader)

fn visit_expr_field(&mut self, f: &'ast ExprField)

fn visit_pat_field(&mut self, fp: &'ast PatField)

fn visit_crate(&mut self, krate: &'ast Crate)

fn visit_inline_asm(&mut self, asm: &'ast InlineAsm)

fn visit_format_args(&mut self, fmt: &'ast FormatArgs)

fn visit_inline_asm_sym(&mut self, sym: &'ast InlineAsmSym)

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: 112 bytes