| public SetRaiseMethod ( System mdBuilder ) : void | ||
| mdBuilder | System | |
| Результат | void | |
static MethodBuilder BuildOnPropertyChanged(System.Reflection.Emit.TypeBuilder typeBuilder, EventBuilder eventBuilder, FieldInfo eventBackingField)
{
var raisePropertyChanged = typeBuilder.DefineMethod("OnPropertyChanged", MethodAttributes.Private, typeof(void), new[] {typeof(string)});
var generator = raisePropertyChanged.GetILGenerator();
var returnLabel = generator.DefineLabel();
generator.DeclareLocal(typeof(PropertyChangedEventHandler));
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldfld, eventBackingField);
generator.Emit(OpCodes.Stloc_0);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ldnull);
generator.Emit(OpCodes.Ceq);
generator.Emit(OpCodes.Brtrue, returnLabel);
generator.Emit(OpCodes.Ldloc_0);
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldarg_1);
generator.Emit(OpCodes.Newobj, _createEventArgs.Value);
generator.Emit(OpCodes.Callvirt, Info<ProgressChangedEventHandler>.GetMethod("Invoke").First().MethodInfo);
generator.MarkLabel(returnLabel);
generator.Emit(OpCodes.Ret);
eventBuilder.SetRaiseMethod(raisePropertyChanged);
return raisePropertyChanged;
}
public void TestCreation () {
eb = tb.DefineEvent ("event2", EventAttributes.SpecialName, typeof (AnEvent));
eb.SetRaiseMethod (mb);
eb.SetAddOnMethod (mb);
eb.SetRemoveOnMethod (mb);
eb.AddOtherMethod (mb);
eb.AddOtherMethod (mb);
Type t = tb.CreateType ();
MethodInfo mi = t.GetMethod ("OnAnEvent");
EventInfo[] events = t.GetEvents ();
AssertEquals (2, events.Length);
{
EventInfo ev = t.GetEvent ("event1");
AssertEquals ("event1", ev.Name);
AssertEquals (EventAttributes.None, ev.Attributes);
AssertEquals (t, ev.DeclaringType);
AssertEquals (typeof (AnEvent), ev.EventHandlerType);
AssertEquals (true, ev.IsMulticast);
AssertEquals (false, ev.IsSpecialName);
AssertEquals (mi, ev.GetAddMethod ());
AssertEquals (null, ev.GetRaiseMethod ());
AssertEquals (mi, ev.GetRemoveMethod ());
}
{
EventInfo ev = t.GetEvent ("event2");
AssertEquals ("event2", ev.Name);
AssertEquals (EventAttributes.SpecialName, ev.Attributes);
AssertEquals (t, ev.DeclaringType);
AssertEquals (typeof (AnEvent), ev.EventHandlerType);
AssertEquals (true, ev.IsMulticast);
AssertEquals (true, ev.IsSpecialName);
AssertEquals (mi, ev.GetAddMethod ());
AssertEquals (mi, ev.GetRaiseMethod ());
AssertEquals (mi, ev.GetRemoveMethod ());
}
}
