protected override Completion ExecuteImpl(ExecutionEnvironment enviroment)
{
if (X == null || Y == null)
{
return(Completion.Exception(Properties.Language.NullException, this));
}
var c = X.Execute(enviroment);
if (!c.IsValue)
{
return(c);
}
if (!TypeConverters.IsNumber(c.ReturnValue))
{
return(Completion.Exception(Properties.Language.ValueNotNumberException, X));
}
double x = TypeConverters.GetValue <double>(c.ReturnValue);
var d = Y.Execute(enviroment);
if (!d.IsValue)
{
return(d);
}
if (!TypeConverters.IsNumber(d.ReturnValue))
{
return(Completion.Exception(Properties.Language.ValueNotNumberException, Y));
}
double y = TypeConverters.GetValue <double>(d.ReturnValue);
DrawWindow wnd = CanvasEnvironment.GetCanvas(enviroment);
wnd.Goto(x, y);
return(Completion.Void);
}
public Completion Assign(ExecutionEnvironment environment, object value)
{
if (!TypeConverters.IsNumber(value))
{
return(Completion.Exception(Properties.Language.ValueNotNumberException, this));
}
DrawWindow wnd = CanvasEnvironment.GetCanvas(environment);
wnd.Y = TypeConverters.GetValue <double>(value);
wnd.Goto(wnd.X, wnd.Y);
return(new Completion(value));
}