| //! An efficient hash map for `NodeId`s. |
| |
| use crate::hir::def_id::DefId; |
| use crate::hir::{HirId, ItemLocalId}; |
| use syntax::ast; |
| |
| pub use rustc_data_structures::fx::FxHashMap; |
| pub use rustc_data_structures::fx::FxHashSet; |
| |
| macro_rules! define_id_collections { |
| ($map_name:ident, $set_name:ident, $key:ty) => { |
| pub type $map_name<T> = FxHashMap<$key, T>; |
| pub type $set_name = FxHashSet<$key>; |
| } |
| } |
| |
| define_id_collections!(NodeMap, NodeSet, ast::NodeId); |
| define_id_collections!(DefIdMap, DefIdSet, DefId); |
| define_id_collections!(HirIdMap, HirIdSet, HirId); |
| define_id_collections!(ItemLocalMap, ItemLocalSet, ItemLocalId); |