Imported Upstream version 4.3.2.467

Former-commit-id: 9c2cb47f45fa221e661ab616387c9cda183f283d
2016-02-22 11:00:01 -05:00
parent f302175246
commit f3e3aab35a
4097 changed files with 122406 additions and 82300 deletions
--- a/mcs/tests/dtest-null-operator-01.cs
+++ b/mcs/tests/dtest-null-operator-01.cs
@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+ 
+class X
+{
+	public string Prop;
+	public A A = new A ();
+}
+
+class A
+{
+	public string B;
+}
+
+class MainClass
+{
+	static void NullCheckTest ()
+	{
+		dynamic dyn = null;
+		dynamic res;
+
+		res = dyn?.ToString ();
+		res = dyn?.GetHashCode ();
+		res = dyn?.DD.Length?.GetHashCode ();
+
+		dyn?.ToString ();
+
+		res = dyn?.Prop;
+		res = dyn?.Prop?.Prop2;
+		res = dyn?[0];
+	}
+
+	static void Test_1 ()
+	{
+		dynamic dyn = new X ();
+		dynamic res;
+
+		res = dyn.Prop?.Length;
+		res = dyn.A.B?.C.D?.E.F;
+	}
+
+	static dynamic Test_2 (IEnumerable<dynamic> collection)
+	{
+		return collection?.FirstOrDefault ().Length;
+	}	
+
+	public static void Main ()
+	{
+		NullCheckTest ();
+
+		Test_1 ();
+		Test_2 (null);
+	}
+}
+
+