2001-10-21 Ravi Pratap <ravi@ximian.com>

	* test-27.cs : Add to do various implicit and explicit
	reference conversions.

	* makefile : Update accordingly.

svn path=/trunk/mcs/; revision=1187

1 files changed, 97 insertions, 0 deletions

diff --git a/mcs/tests/test-27.cs b/mcs/tests/test-27.cs
new file mode 100644
index 00000000000..f1bd59b102a
--- /dev/null
+++ b/mcs/tests/test-27.cs
@@ -0,0 +1,97 @@
+using System;
+
+public interface Hello {
+
+	bool MyMethod (int i);
+}
+
+public interface Another : Hello {
+
+	int AnotherMethod (int i);
+}
+
+public class Foo : Hello, Another {
+
+	public bool MyMethod (int i)
+	{
+		if (i == 22)
+			return true;
+		else
+			return false;
+	}
+
+	public int AnotherMethod (int i)
+	{
+		return i * 10;
+	}
+	
+}
+
+public interface ITest {
+
+	bool TestMethod (int i, float j);
+}
+
+public class Blah : Foo {
+
+	public delegate void MyDelegate (int i, int j);
+
+	void Bar (int i, int j)
+	{
+		Console.WriteLine (i+j);
+	}
+	
+	public static int Main ()
+	{
+		Blah k = new Blah ();
+
+		Foo f = k;
+
+		object o = k;
+
+		if (f is Foo)
+			Console.WriteLine ("I am a Foo!");
+
+		Hello ihello = f;
+
+		Another ianother = f;
+
+		ihello = ianother; 
+
+		bool b = f.MyMethod (22);
+
+		MyDelegate del = new MyDelegate (k.Bar);
+
+		del (2, 3);
+		
+		Delegate tmp = del;
+
+		// Explicit reference conversions
+		
+		MyDelegate adel = (MyDelegate) tmp;
+
+		adel (4, 7);
+
+		Blah l = (Blah) o;
+
+		l.Bar (20, 30);
+
+		l = (Blah) f;
+
+		l.Bar (2, 5);
+
+		f = (Foo) ihello;
+
+		// The following cause exceptions even though they are supposed to work
+		// according to the spec
+
+		// This one sounds ridiculous !
+		// ITest t = (ITest) l;
+		
+		// ITest u = (ITest) ihello;
+
+		return 0;
+
+	}
+}
+