//-----------------------------------------------------------------------------------------------------------------------------------------------------
public IEventWriterRemoveOn Remove(Action <VoidMethodWriter, Argument <TypeTemplate.TEventHandler> > script)
{
var writer = new VoidMethodWriter(
OwnerEvent.RemoveMethod,
w => script(w, w.Arg1 <TypeTemplate.TEventHandler>()));
return(null);
}
//-----------------------------------------------------------------------------------------------------------------------------------------------------
public IPropertyWriterSetter Set(Action <VoidMethodWriter, Argument <TypeTemplate.TProperty> > script)
{
var indexArgumentCount = OwnerProperty.PropertyDeclaration.GetIndexParameters().Length;
var writer = new VoidMethodWriter(
OwnerProperty.SetterMethod,
w => script(w, w.Argument <TypeTemplate.TProperty>(indexArgumentCount + 1)));
return(null);
}
public AutomaticEventWriter(EventMember ownerEvent)
: base(ownerEvent)
{
var addOn = new VoidMethodWriter(
OwnerEvent.AddMethod,
w => WriteAddRemoveMethod(w, w.Arg1 <TypeTemplate.TEventHandler>(), manipulation: Delegate.Combine));
var removeOn = new VoidMethodWriter(
OwnerEvent.RemoveMethod,
w => WriteAddRemoveMethod(w, w.Arg1 <TypeTemplate.TEventHandler>(), manipulation: Delegate.Remove));
}
//-----------------------------------------------------------------------------------------------------------------------------------------------------
private void WriteAddRemoveMethod(
VoidMethodWriter w,
Argument <TypeTemplate.TEventHandler> value,
Func <Delegate, Delegate, Delegate> manipulation)
{
var oldHandler = w.Local <TypeTemplate.TEventHandler>();
var newHandler = w.Local <TypeTemplate.TEventHandler>();
var lastHandler = w.Local <TypeTemplate.TEventHandler>(initialValue: OwnerEvent.BackingField.AsOperand <TypeTemplate.TEventHandler>());
w.Do(loop => {
oldHandler.Assign(lastHandler);
newHandler.Assign(Static.Func(manipulation,
oldHandler.CastTo <Delegate>(),
value.CastTo <Delegate>()).CastTo <TypeTemplate.TEventHandler>());
lastHandler.Assign(Static.GenericFunc((x, y, z) => Interlocked.CompareExchange(ref x, y, z),
OwnerEvent.BackingField.AsOperand <TypeTemplate.TEventHandler>(),
newHandler,
oldHandler));
}).While(lastHandler != oldHandler);
}
//-----------------------------------------------------------------------------------------------------------------------------------------------------
public IPropertyWriterSetter Set(Action <VoidMethodWriter, Argument <T> > body)
{
var writer = new VoidMethodWriter(OwnerProperty.SetterMethod, w => body(w, w.Arg1 <T>()));
return(null);
}
