perf(header): optimize when inserting a new type header

2017-06-23 18:49:18 -07:00
parent 7369fe649f
commit 7d122bd15f
3 changed files with 59 additions and 8 deletions
--- a/src/header/internals/cell.rs
+++ b/src/header/internals/cell.rs
@@ -58,6 +58,11 @@ impl<V: ?Sized + Any + 'static> PtrMapCell<V> {
        PtrMapCell(UnsafeCell::new(PtrMap::Empty))
    }

+    #[inline]
+    pub fn with_one(key: TypeId, val: Box<V>)  -> PtrMapCell<V> {
+        PtrMapCell(UnsafeCell::new(PtrMap::One(key, val)))
+    }
+
    #[inline]
    pub fn get(&self, key: TypeId) -> Option<&V> {
        let map = unsafe { &*self.0.get() };