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// Compiler options: -langversion:experimental
using System;
class RecursiveNamedPattern
{
public static int Main ()
{
object o = new C ();
bool b = o is C (name2: "", name1: -2);
if (b)
return 1;
b = o is C (name2: "n2", name1: -2);
if (!b)
return 2;
b = o is C ();
if (b)
return 3;
return 0;
}
}
class C
{
public static bool operator is (C c, out long name1, out string name2)
{
name1 = -2;
name2 = "n2";
return true;
}
public static bool operator is (C c)
{
return false;
}
}
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