public void DelegateGroupTest()
{
Tester t = new Tester();
// overloaded instance method with a target
DelegateGroup dg = (DelegateGroup)Invoker.InvokeMember(typeof(Tester), "Two", BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod, t, null);
Assert.Equal(2, (int)dg.DynamicInvoke());
// assign the group to a property (this will pick one method out of the group)
Invoker.InvokeMember(typeof(Tester), "delegateProperty", BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty, t, dg);
Assert.Equal(2,
(int)
Invoker.InvokeMember(typeof(Tester), "delegateProperty", BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, t, new object[0]));
// instance method with no target
dg = (DelegateGroup)Invoker.InvokeMember(typeof(Tester), "One", BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod, null, null);
Assert.Equal(1, (int)dg.DynamicInvoke(t));
Converter <Tester, int> cti = (Converter <Tester, int>)dg.GetDelegate(typeof(Converter <Tester, int>));
Assert.Equal(1, cti(t));
// overloaded instance method with no target
dg = (DelegateGroup)Invoker.InvokeMember(typeof(Tester), "Two", BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod, null, null);
Assert.Equal(2, (int)dg.DynamicInvoke(t));
cti = (Converter <Tester, int>)dg.GetDelegate(typeof(Converter <Tester, int>));
Assert.Equal(2, cti(t));
// static method with no target
dg = (DelegateGroup)Invoker.InvokeMember(typeof(Tester), "Three", BindingFlags.Public | BindingFlags.Static | BindingFlags.InvokeMethod, null, null);
Assert.Equal(3, (int)dg.DynamicInvoke());
}
public static Delegate InstanceRemove(Delegate source, Delegate value)
{
if (RpcHead.Current == null)//client
{
return(Delegate.Remove(source, value));
}
Guid instanceId = RpcHead.Current.InstanceId;
DelegateGroup group = null;
if (!delegates.ContainsKey(instanceId))
{
group = new DelegateGroup();
delegates.Add(instanceId, group);
}
else
{
group = delegates[instanceId];
}
Delegate fixedSource = null;
if (!group.ContainsKey(value.Method))
{
if (source != null)
{
group.Add(value.Method, source);
fixedSource = source;
}
}
else
{
fixedSource = group[value.Method];
}
var retVal = Delegate.Remove(fixedSource, value);
if (retVal == null)
{
group.Remove(value.Method);
}
else
{
group[value.Method] = retVal;
}
return(retVal);
}