35 lines
574 B
C#
35 lines
574 B
C#
using System;
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public sealed class Thing<TFirst> where TFirst : class
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{
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public static Thing<TFirst> Create<TSecond> (Func<TFirst, TSecond> fn)
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where TSecond : class
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{
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return new Thing<TFirst> (
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delegate (TFirst item) {
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TSecond foo = item == null ? null : fn (item);
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Console.WriteLine (foo);
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});
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}
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public void SomeAction ()
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{
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_fn (null);
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}
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private Thing (Action<TFirst> fn)
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{
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_fn = fn;
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}
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Action<TFirst> _fn;
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}
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public static class Program
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{
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public static void Main ()
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{
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var foo = Thing<object>.Create (x => x);
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foo.SomeAction ();
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}
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} |