}
pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v TraitItem<'v>) {
- visitor.visit_ident(trait_item.ident);
- visitor.visit_generics(&trait_item.generics);
- visitor.visit_defaultness(&trait_item.defaultness);
- match trait_item.kind {
+ // N.B., deliberately force a compilation error if/when new fields are added.
+ let TraitItem { ident, generics, ref defaultness, ref kind, span, def_id: _ } = *trait_item;
+ let hir_id = trait_item.hir_id();
+ visitor.visit_ident(ident);
+ visitor.visit_generics(&generics);
+ visitor.visit_defaultness(&defaultness);
+ match *kind {
TraitItemKind::Const(ref ty, default) => {
- visitor.visit_id(trait_item.hir_id());
+ visitor.visit_id(hir_id);
visitor.visit_ty(ty);
walk_list!(visitor, visit_nested_body, default);
}
TraitItemKind::Fn(ref sig, TraitFn::Required(param_names)) => {
- visitor.visit_id(trait_item.hir_id());
+ visitor.visit_id(hir_id);
visitor.visit_fn_decl(&sig.decl);
for ¶m_name in param_names {
visitor.visit_ident(param_name);
}
}
TraitItemKind::Fn(ref sig, TraitFn::Provided(body_id)) => {
- visitor.visit_fn(
- FnKind::Method(trait_item.ident, sig),
- &sig.decl,
- body_id,
- trait_item.span,
- trait_item.hir_id(),
- );
+ visitor.visit_fn(FnKind::Method(ident, sig), &sig.decl, body_id, span, hir_id);
}
TraitItemKind::Type(bounds, ref default) => {
- visitor.visit_id(trait_item.hir_id());
+ visitor.visit_id(hir_id);
walk_list!(visitor, visit_param_bound, bounds);
walk_list!(visitor, visit_ty, default);
}