public void Run(IEnvironment env)
{
IQueryValue value = null;
if (!env.HasParameter(Name))
{
if (Value == null)
throw new KeyNotFoundException(string.Format("Parameter \"{0}\" was not defined", Name));
value = Value.Evaluate(env);
}
else
{
value = env.GetParameter(Name);
}
if(value.GetIQLType() != IQLType.Color)
throw new InvalidOperationException(string.Format("Parameter \"{0}\" must be a color", Name));
env.CreateVariable(Name, value);
}
