98 lines
1.2 KiB
C#
98 lines
1.2 KiB
C#
using System;
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public interface Hello {
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bool MyMethod (int i);
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}
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public interface Another : Hello {
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int AnotherMethod (int i);
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}
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public class Foo : Hello, Another {
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public bool MyMethod (int i)
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{
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if (i == 22)
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return true;
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else
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return false;
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}
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public int AnotherMethod (int i)
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{
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return i * 10;
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}
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}
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public interface ITest {
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bool TestMethod (int i, float j);
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}
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public class Blah : Foo {
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public delegate void MyDelegate (int i, int j);
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void Bar (int i, int j)
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{
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Console.WriteLine (i+j);
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}
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public static int Main ()
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{
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Blah k = new Blah ();
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Foo f = k;
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object o = k;
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if (f is Foo)
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Console.WriteLine ("I am a Foo!");
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Hello ihello = f;
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Another ianother = f;
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ihello = ianother;
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bool b = f.MyMethod (22);
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MyDelegate del = new MyDelegate (k.Bar);
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del (2, 3);
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Delegate tmp = del;
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// Explicit reference conversions
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MyDelegate adel = (MyDelegate) tmp;
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adel (4, 7);
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Blah l = (Blah) o;
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l.Bar (20, 30);
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l = (Blah) f;
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l.Bar (2, 5);
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f = (Foo) ihello;
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// The following cause exceptions even though they are supposed to work
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// according to the spec
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// This one sounds ridiculous !
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// ITest t = (ITest) l;
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// ITest u = (ITest) ihello;
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return 0;
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}
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}
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