public Completion Execute(ExecutionEnvironment environment)
{
ExecutionEnterEventArgs args = new ExecutionEnterEventArgs(this);
environment.FireEnterNode(args);
try
{
var c = this.ExecuteImpl(environment);
environment.FireLeaveNode(new ExecutionLeaveEventArgs(this, c));
return(c);
}
catch (Exception e)
{
environment.FireLeaveNode(new ExecutionLeaveEventArgs(this, Completion.Exception(e.Message, this)));
return(Completion.Exception(e.Message, this));
}
}
private void Engine_EnterNode(object obj, ExecutionEnterEventArgs arg)
{
if (IsStackMonitored)
{
stackTrace.Push(arg.Location);
if (stackTrace.Count > 1000)
{
MessageBox.Show(Properties.Resources.StackMessage, Properties.Resources.StackTitle, MessageBoxButton.OK, MessageBoxImage.Error);
engine.Stop();
}
}
if (IsHighlightStep && arg.Location != null && arg.Location is Statement)
{
Control editor = null;
double cycle = 100;
Dispatcher.Invoke(() =>
{
try
{
cycle = 100 - SliderSpeeder.Value;
editor = Editor.FindEditorFor(arg.Location);
if (editor != null)
{
Editor.Highlight(editor);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
});
if (editor != null)
{
Thread.Sleep((int)(3000 * cycle / 100));
Dispatcher.Invoke(() =>
{
Editor.ClearHighlight();
});
}
}
}