Imported Upstream version 3.12.0

Former-commit-id: cf92446697332992ec36726e78eb8703e1f259d7

mcs/tests/test-pattern-07.cs

@@ -0,0 +1,75 @@
+// Compiler options: -langversion:experimental
+
+using System;
+
+class PropertyPattern
+{
+	static int Main ()
+	{
+		object o = new DateTime (2014, 8, 30);
+
+		if (!(o is DateTime { Day is 30 }))
+			return 1;
+
+		if (!(o is DateTime { Month is 8, Day is 30, Year is * }))
+			return 2;
+
+		if (o is X { Field is 30 })
+			return 3;
+
+		object o2 = new X () {
+			Field = new Y () {
+				Prop = 'f'
+			}
+		};
+
+		bool res2 = o2 is X { Field is Y { Prop is 'f' }, Field is Y (4) };
+		if (!res2)
+			return 4;
+
+		res2 = o2 is X { Field is Y { Prop is 'g' } };
+		if (res2)
+			return 5;
+
+		object o3 = new X () {
+			Value = 5
+		};
+
+		if (o3 is X { Value is 6 })
+			return 6;
+
+		if (!(o3 is X { Value is 5 }))
+			return 7;
+
+		object o4 = new X () {
+			NullableValue = 4
+		};
+
+		bool res3 = o4 is X { NullableValue is (byte) 4 };
+		if (!res3)
+			return 8;
+
+		Console.WriteLine("ok");
+		return 0;
+	}
+}
+
+class X
+{
+	public object Field { get; set; }
+
+	public object Value { get; set; }
+
+	public long? NullableValue { get; set; }
+}
+
+class Y
+{
+	public char Prop { get; set; }
+
+	public static bool operator is (Y y, out int x)
+	{
+		x = 4;
+		return true;
+	}
+}