src/librustc_typeck/namespace.rs

   1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 use rustc::hir;
  12 use rustc::ty;
  13
  14 // Whether an item exists in the type or value namespace.
  15 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
  16 pub enum Namespace {
  17     Type,
  18     Value,
  19 }
  20
  21 impl From<ty::AssociatedKind> for Namespace {
  22     fn from(a_kind: ty::AssociatedKind) -> Self {
  23         match a_kind {
  24             ty::AssociatedKind::Type => Namespace::Type,
  25             ty::AssociatedKind::Const |
  26             ty::AssociatedKind::Method => Namespace::Value,
  27         }
  28     }
  29 }
  30
  31 impl<'a> From <&'a hir::ImplItemKind> for Namespace {
  32     fn from(impl_kind: &'a hir::ImplItemKind) -> Self {
  33         match *impl_kind {
  34             hir::ImplItemKind::Type(..) => Namespace::Type,
  35             hir::ImplItemKind::Const(..) |
  36             hir::ImplItemKind::Method(..) => Namespace::Value,
  37         }
  38     }
  39 }