31 lines
895 B
C#
31 lines
895 B
C#
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interface ICovariant<out T> { }
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interface IContravariant<in T> { }
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delegate ICovariant<U> Cov1<out U> (IContravariant<U> x);
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delegate ICovariant<U> Cov2<out U> (IContravariant<ICovariant<U>> x);
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delegate ICovariant<IContravariant<IContravariant<U>>> Cov3<out U> (IContravariant<IContravariant<IContravariant<ICovariant<U>>>> x);
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delegate ICovariant<int> Cov4<out U> ();
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delegate IContravariant<int> Cov5<out U> ();
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delegate IContravariant<U[]> Contra5<in U> (U u, ICovariant<U> x);
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delegate IContravariant<U[]> Contra6<in U> ();
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delegate IContravariant<U> Contra7<in U> (U u, ICovariant<U> x);
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delegate IContravariant<ICovariant<U>> Contra8<in U> (U u, ICovariant<U> x);
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interface ITest_1<out T>
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{
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ICovariant<T> CovariantHandler (IContravariant<T> x);
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}
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interface ITest_2<in T>
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{
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IContravariant<T> CovariantHandler (ICovariant<T> x);
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}
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class Program
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{
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public static void Main ()
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{
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}
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}
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