X-Git-Url: https://git.chrismorgan.info/anymap/blobdiff_plain/8b30c87fe6cf514544d8bc68989631daac8aeec1..7dc36adf24d48394bcb9d0aa802746e3d4a1f564:/src/lib.rs

diff --git a/src/lib.rs b/src/lib.rs
index f5ee7b3..0c71e36 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,8 +1,7 @@
 //! This crate provides the `AnyMap` type, a safe and convenient store for one value of each type.
 
-#![crate_id = "anymap#0.9.0"]
-#![crate_type = "rlib"]
-#![crate_type = "dylib"]
+#![crate_name = "anymap"]
+#![crate_type = "lib"]
 #![feature(default_type_params)]
 #![warn(unnecessary_qualification, non_uppercase_statics,
         variant_size_difference, managed_heap_memory, unnecessary_typecast,
@@ -142,6 +141,11 @@ impl AnyMap {
     pub fn remove<T: 'static>(&mut self) {
         self.data.remove(&TypeId::of::<T>());
     }
+
+    /// Does a value of type `T` exist?
+    pub fn contains<T: 'static>(&self) -> bool {
+        self.data.contains_key(&TypeId::of::<T>())
+    }
 }
 
 impl Collection for AnyMap {