--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Implab/ResolvedPromise`1.cs	Tue Jan 30 01:37:17 2018 +0300
@@ -0,0 +1,47 @@
+using System;
+
+namespace Implab {
+    public struct ResolvedPromise<T> : IPromise<T> {
+        T m_result;
+
+        public Type ResultType => typeof(T);
+
+        public bool IsResolved => true;
+
+        public bool IsRejected => false;
+
+        public bool IsFulfilled => true;
+
+        public Exception RejectReason => null;
+
+        public ResolvedPromise(T result) {
+            m_result = result;
+        }
+
+        public IPromise<T2> Cast<T2>() {
+            return (IPromise<T2>)(IPromise<T>)this;
+        }
+
+        void IPromise.Join() {
+        }
+
+        void IPromise.Join(int timeout) {
+        }
+
+        public T Join() {
+            return m_result;
+        }
+
+        public T Join(int timeout) {
+            return m_result;
+        }
+
+        public void Then(IResolvable<T> next) {
+            next.Resolve(m_result);
+        }
+
+        public void Then(IResolvable next) {
+            next.Resolve();
+        }
+    }
+}
\ No newline at end of file