Task

- Added a Task which represents the work done by a Promise

source/eventy/task.d

@@ -0,0 +1,47 @@
+module eventy.task;
+
+/** 
+ * Task
+ *
+ * A task is the unit of execution that a promise is
+ * to carry out.
+ */
+public abstract class Task
+{
+    public abstract Result worker();
+
+    public final Result doTask()
+    {
+        return null;
+    }
+}
+
+
+/** 
+ * SimpleTask
+ *
+ * A task that returns an empty result
+ */
+public final class SimpleTask : Task
+{
+    // TODO: Put worker field here
+
+    // TODO: Take in a lambda that takes in no arguments and executes something which returns void
+    this(int x)
+    {
+
+    }
+
+    // TODO: worker calls it
+    public override Result worker()
+    {
+        // TODO: Make a result
+        Result result;
+
+        // TODO: Call worker-field here
+        
+        // TODO: You must handle errors and set `result` accordingly
+
+        return result;
+    }
+}