/// <summary>
/// Provides the states used in an expression
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public static List<Constants.State> GetStates(Interpreter.Expression expression)
{
List<Constants.State> retval = new List<Constants.State>();
if (expression != null)
{
foreach (Values.IValue value in expression.GetLiterals())
{
Constants.State state = value as Constants.State;
if (state != null)
{
retval.Add(state);
}
}
Interpreter.Call call = expression as Interpreter.Call;
if (call != null)
{
Functions.Function function = call.Called.getStaticCallable() as Functions.Function;
if (function != null)
{
foreach (Values.IValue value in function.GetLiterals())
{
Constants.State state = value as Constants.State;
if (state != null)
{
retval.Add(state);
}
}
}
}
}
return retval;
}