69 lines
881 B
C#
69 lines
881 B
C#
// Compiler options: -langversion:experimental
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using System;
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class RecursiveNamedPattern
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{
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public static int Main ()
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{
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if (Switch_1 (null) != 4)
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return 1;
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if (Switch_1 ("x") != 5)
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return 2;
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if (Switch_1 (1) != 1)
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return 3;
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// if (Switch_1 (new C1 ()) != 3)
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// return 4;
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if (Switch_1 ((byte?) 1) != 1)
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return 5;
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if (Switch_2 (new C1 ()) != 3)
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return 10;
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if (Switch_2 (null) != 2)
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return 11;
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Console.WriteLine ("ok");
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return 0;
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}
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static int Switch_1 (object o)
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{
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switch (o) {
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case 1:
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return 1;
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// case C1 (3):
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// return 2;
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// case C1 (2):
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// return 3;
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case null:
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return 4;
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default:
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return 5;
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}
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}
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static int Switch_2 (C1 o)
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{
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switch (o) {
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case null:
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return 2;
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}
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return 3;
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}
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}
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public class C1
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{
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public static bool operator is (C1 c1, out int i)
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{
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i = 2;
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return true;
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}
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}
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