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//
// Conversions involving type parameters (26.7.4).
// This is a compilation-only test since some of the explict
// conversions would trigger an InvalidCastException.
//
using System;
interface Foo
{
void Hello ();
}
class A
{ }
class B : A, Foo
{
public void Hello ()
{ }
public static implicit operator C (B b)
{
return new C ();
}
}
class C
{
public static explicit operator B (C c)
{
return new B ();
}
}
class Test
{
static void Simple<T> (T t)
{
object o = t;
t = (T) o;
Foo foo = (Foo) t;
t = (T) foo;
}
static void Interface<T> (T t)
where T : Foo
{
Foo foo = t;
}
static void Class<T> (T t)
where T : B
{
B b = t;
A a = t;
Foo foo = t;
t = (T) b;
t = (T) a;
t = (T) foo;
C c = t;
t = (T) c;
}
static void Array<T> (T[] t)
{
object o = t;
Array a = t;
t = (T []) o;
t = (T []) a;
}
public static void Main ()
{ }
}
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