+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use rustc::hir;
+use rustc::ty;
+
+// Whether an item exists in the type or value namespace.
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum Namespace {
+ Type,
+ Value,
+}
+
+impl From<ty::AssociatedKind> for Namespace {
+ fn from(a_kind: ty::AssociatedKind) -> Self {
+ match a_kind {
+ ty::AssociatedKind::Type => Namespace::Type,
+ ty::AssociatedKind::Const |
+ ty::AssociatedKind::Method => Namespace::Value,
+ }
+ }
+}
+
+impl<'a> From <&'a hir::ImplItemKind> for Namespace {
+ fn from(impl_kind: &'a hir::ImplItemKind) -> Self {
+ match *impl_kind {
+ hir::ImplItemKind::Type(..) => Namespace::Type,
+ hir::ImplItemKind::Const(..) |
+ hir::ImplItemKind::Method(..) => Namespace::Value,
+ }
+ }
+}