Merge pull request #147 from vapor/worker-future

Created Worker.succeeded(_:) and .failed(_:) methods

Sources/Async/Worker.swift

@@ -41,6 +41,28 @@ extension Worker {
     public var eventLoop: EventLoop {
         return next()
     }
+
+    /// Creates a new, succeeded `Future` from the worker's event loop.
+    ///
+    ///    let a: Future<String> = req.future("hello")
+    ///
+    /// - parameters:
+    ///     - value: The value that the future will wrap.
+    /// - returns: The succeeded future.
+    func future<T>(_ value: T) -> Future<T> {
+        return self.eventLoop.newSucceededFuture(result: value)
+    }
+
+    /// Creates a new, failed `Future` from the worker's event loop.
+    ///
+    ///    let b: Future<String> = req.future(error: Abort(...))
+    ///
+    /// - parameters:
+    ///    - error: The error that the future will wrap.
+    /// - returns: The failed future.
+    func future<T>(error: Error) -> Future<T> {
+        return self.eventLoop.newFailedFuture(error: error)
+    }
 }
 
 /// A basic `Worker` type that has a single `EventLoop`.