Implement await dynamic type expression

1 files changed, 47 insertions, 0 deletions

diff --git a/mcs/tests/test-async-21.cs b/mcs/tests/test-async-21.cs
new file mode 100644
index 00000000000..b45c43b47e9
--- /dev/null
+++ b/mcs/tests/test-async-21.cs
@@ -0,0 +1,47 @@
+// Compiler options: -langversion:future
+
+using System;
+using System.Threading.Tasks;
+
+class S
+{
+	public A GetAwaiter ()
+	{
+		return new A ();
+	}
+}
+
+class A
+{
+	bool IsCompleted {
+		get {
+			return false;
+		}
+	}
+	
+	void OnCompleted (System.Action a)
+	{
+		a ();
+	}
+	
+	int GetResult ()
+	{
+		return 3;
+	}
+	
+	static async Task<int> Test1 ()
+	{
+		dynamic d = new S ();
+		return await d;
+	}
+
+	public static int Main ()
+	{
+		var r = Test1 ();
+		if (!Task.WaitAll (new [] { r }, 1000))
+			return 1;
+		
+		Console.WriteLine ("ok");
+		return 0;
+	}
+}
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