public override void VisitEventDeclaration(EventDeclaration eventDeclaration)
{
foreach (var singleEvt in eventDeclaration.Variables)
{
var resolveResult = _resolver.Resolve(singleEvt);
if (!(resolveResult is MemberResolveResult))
{
_errorReporter.Region = eventDeclaration.GetRegion();
_errorReporter.InternalError("Event declaration " + singleEvt.Name + " does not resolve to a member.");
return;
}
var evt = ((MemberResolveResult)resolveResult).Member as IEvent;
if (evt == null)
{
_errorReporter.Region = eventDeclaration.GetRegion();
_errorReporter.InternalError("Event declaration " + singleEvt.Name + " does not resolve to an event (resolves to " + resolveResult.ToString() + ")");
return;
}
var jsClass = GetJsClass(evt.DeclaringTypeDefinition);
if (jsClass == null)
{
return;
}
var impl = _metadataImporter.GetEventSemantics(evt);
switch (impl.Type)
{
case EventScriptSemantics.ImplType.AddAndRemoveMethods: {
if (evt.IsAbstract)
{
if (impl.AddMethod.GeneratedMethodName != null)
{
AddCompiledMethodToType(jsClass, evt.AddAccessor, impl.AddMethod, new JsMethod(evt.AddAccessor, impl.AddMethod.GeneratedMethodName, null, null));
}
if (impl.RemoveMethod.GeneratedMethodName != null)
{
AddCompiledMethodToType(jsClass, evt.RemoveAccessor, impl.RemoveMethod, new JsMethod(evt.RemoveAccessor, impl.RemoveMethod.GeneratedMethodName, null, null));
}
}
else
{
var fieldName = _metadataImporter.GetAutoEventBackingFieldName(evt);
if (_metadataImporter.ShouldGenerateAutoEventBackingField(evt))
{
if (singleEvt.Initializer.IsNull)
{
AddDefaultFieldInitializerToType(jsClass, fieldName, evt, evt.IsStatic);
}
else
{
CompileAndAddFieldInitializerToType(jsClass, fieldName, evt, singleEvt.Initializer, evt.IsStatic);
}
}
CompileAndAddAutoEventMethodsToType(jsClass, eventDeclaration, evt, impl, fieldName);
}
break;
}
case EventScriptSemantics.ImplType.NotUsableFromScript: {
break;
}
default: {
throw new InvalidOperationException("Invalid event implementation type");
}
}
}
}
public virtual bool ShouldGenerateAutoEventBackingField(IEvent evt)
{
return(_prev.ShouldGenerateAutoEventBackingField(evt));
}