public T Modify(ValueContainerModifier <T> modifier, ILogger logger = null)
{
lock (m_sync)
{
if (m_readonly)
{
throw new NotSupportedException("Setting the variable is not allowed, because it is read-only.");
}
T vNew, vRet;
vRet = modifier(m_value, out vNew);
this.SetValueDirect(vNew);
return(vRet);
}
}
public void TestContainer()
{
var containerAccess = VariableContainer.Create("", "Anders", TypeReference.TypeInt32, false);
Assert.IsNotNull(containerAccess);
var container = containerAccess.Container as IValueContainer <int>;
Assert.IsNotNull(container);
var rc = container as IValueContainerRich;
Assert.IsNotNull(rc);
Assert.AreEqual(0, rc.ValueChangeIndex);
Assert.AreEqual(0, container.GetValue());
containerAccess.SetValue(14, null);
Assert.AreEqual(1, rc.ValueChangeIndex);
Assert.AreEqual(14, container.GetValue());
ValueContainerModifier <int> modifier = (int i, out int o) => { o = i + 2; return(i); };
Assert.AreEqual(14, container.Modify(modifier));
Assert.AreEqual(2, rc.ValueChangeIndex);
Assert.AreEqual(16, container.GetValue());
}
