1 files changed, 31 insertions, 0 deletions
diff --git a/servo/components/style/hash.rs b/servo/components/style/hash.rs
new file mode 100644
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+++ b/servo/components/style/hash.rs
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+//! Reexports of hashglobe types in Gecko mode, and stdlib hashmap shims in Servo mode
+//!
+//! Can go away when the stdlib gets fallible collections
+//! https://github.com/rust-lang/rfcs/pull/2116
+
+use fxhash;
+
+#[cfg(feature = "gecko")]
+pub use hashglobe::hash_map::HashMap;
+#[cfg(feature = "gecko")]
+pub use hashglobe::hash_set::HashSet;
+
+#[cfg(feature = "servo")]
+pub use hashglobe::fake::{HashMap, HashSet};
+
+/// Appropriate reexports of hash_map types
+pub mod map {
+    #[cfg(feature = "gecko")]
+    pub use hashglobe::hash_map::{Entry, Iter};
+    #[cfg(feature = "servo")]
+    pub use std::collections::hash_map::{Entry, Iter};
+}
+
+/// Hash map that uses the Fx hasher
+pub type FxHashMap<K, V> = HashMap<K, V, fxhash::FxBuildHasher>;
+/// Hash set that uses the Fx hasher
+pub type FxHashSet<T> = HashSet<T, fxhash::FxBuildHasher>;