/// <summary>
/// eventListener.emit(eventName, args...)
///
/// Returns bool indicating if event was raised.
/// </summary>
private static IAnalysisSet EventEmitterEmit(FunctionValue func, Node node, AnalysisUnit unit, IAnalysisSet @this, IAnalysisSet[] args)
{
if (args.Length >= 1)
{
if (@this != null)
{
foreach (var thisArg in @this)
{
ExpandoValue expando = @thisArg.Value as ExpandoValue;
if (expando != null)
{
foreach (var arg in args[0])
{
var strValue = arg.Value.GetStringValue();
if (strValue != null)
{
VariableDef events;
if (expando.TryGetMetadata <VariableDef>(new EventListenerKey(strValue), out events))
{
foreach (var type in events.GetTypesNoCopy(unit))
{
type.Call(node, unit, @this, args.Skip(1).ToArray());
}
}
}
}
}
}
}
}
return(func.ProjectState._trueInst.Proxy);
}
/// <summary>
/// this.addListener(name, handler)
///
/// returns the event listener
/// </summary>
private static IAnalysisSet EventEmitterAddListener(FunctionValue func, Node node, AnalysisUnit unit, IAnalysisSet @this, IAnalysisSet[] args)
{
if (args.Length >= 2 && args[1].Count > 0)
{
if (@this != null)
{
foreach (var thisArg in @this)
{
ExpandoValue expando = @thisArg.Value as ExpandoValue;
if (expando != null)
{
foreach (var arg in args[0])
{
var strValue = arg.Value.GetStringValue();
if (strValue != null)
{
var key = new EventListenerKey(strValue);
VariableDef events;
if (!expando.TryGetMetadata(key, out events))
{
expando.SetMetadata(key, events = new VariableDef());
}
events.AddTypes(unit, args[1]);
}
}
}
}
}
}
return(@this ?? AnalysisSet.Empty);
}