[mcs] C# 7 tuple (foundation only).

Still couple of advanced features not implemented and parser cannot
deal with unnamed tuple type at type declaration level.

1 files changed, 62 insertions, 0 deletions

diff --git a/mcs/tests/test-tuple-03.cs b/mcs/tests/test-tuple-03.cs
new file mode 100644
index 00000000000..7eb45a893ca
--- /dev/null
+++ b/mcs/tests/test-tuple-03.cs
@@ -0,0 +1,62 @@
+using System;
+using System.Linq.Expressions;
+
+class TupleDeconstruct
+{
+	public static int Main ()
+	{
+//		var (xx, yy) = (1, 2);
+//		if (xx != 1)
+//			return 1;
+
+//		if (yy != 2)
+//			return 2;
+
+		int x, y;
+		(x, y) = (1, 2);
+		if (x != 1)
+			return 1;
+
+		if (y != 2)
+			return 2;
+
+//		var (l1, l2) = ('a', 'b');
+
+//		var cwd = new ClassWithDeconstruct ();
+//		var (m1, m2) = cwd;
+
+//		(string, string) ss = cwd; // Error
+
+		return 0;
+	}
+
+	static void Test2 ()
+	{
+		var c = new C ();
+		(c.Prop1, c.Prop2) = (1, 2);
+	}
+
+	static void var1 (object o1, object o2)
+	{
+	}
+
+	static void TestCustom ()
+	{
+		return;
+	}
+}
+
+class ClassWithDeconstruct
+{
+	public void Deconstruct (out string f, out string s)
+	{
+		f = "a";
+		s = "z";
+	}
+}
+
+class C
+{
+	public int Prop1 { get; set; }
+	public int Prop2 { get; set; }
+}
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