public void Just()
{
var a = new object();
IMaybe <object> justA = Maybe.Just(a);
Assert.That(justA.Exists, Is.True);
Assert.That(a, Is.SameAs(justA.Value));
Assert.That(Maybe.Of(a), Is.EqualTo(justA));
Assert.That(justA.Equals(null), Is.False);
Assert.That(Maybe.Just(a), Is.EqualTo(justA));
Assert.That(Maybe.Just("b"), Is.Not.EqualTo(justA));
Assert.That(Maybe.Just <object>("b"), Is.Not.EqualTo(justA));
Assert.That(Maybe.Nothing <string>(), Is.Not.EqualTo(justA));
Assert.True(justA.Equals(justA));
Assert.That(Maybe.Just("a").ToString(), Is.EqualTo("Just(a)"));
Assert.That(justA.GetHashCode(), Is.EqualTo(justA.Value.GetHashCode()));
Assert.That(justA.GetOrElse(new object()), Is.SameAs(a));
bool called = false;
justA.GetOrElseGet(() =>
{
called = true;
return(new object());
});
Assert.That(called, Is.False);
}
public override int GetHashCode()
{
unchecked
{
var hashCode = mutable.GetHashCode();
hashCode = hashCode * 397 ^ (name?.GetHashCode() ?? 0);
hashCode = hashCode * 397 ^ (label?.GetHashCode() ?? 0);
hashCode = hashCode * 397 ^ (_defaultValue?.GetHashCode() ?? 0);
hashCode = hashCode * 397 ^ _typeConstraint.Map(tc => tc.Hash).DefaultTo(() => 0);
hashCode = hashCode * 397 ^ reference.GetHashCode();
hashCode = hashCode * 397 ^ capturing.GetHashCode();
return(hashCode);
}
}