public void RequireStandard(Standard standard)
{
if (standard.IsNullOrDefault())
{
throw new ArgumentNullException(nameof(standard));
}
Requirements.Add(new Requirement(this, standard));
}
public void NoLongerRequireStandard(Standard standard)
{
if (standard.IsNullOrDefault())
{
throw new ArgumentNullException(nameof(standard));
}
foreach (var requirement in Requirements.Where(r => r.Standard == standard))
{
Requirements.Remove(requirement);
}
}
public void SwapStandards(Standard old, Standard fresh)
{
if (old.IsNullOrDefault())
{
throw new ArgumentNullException(nameof(old));
}
if (fresh.IsNullOrDefault())
{
throw new ArgumentNullException(nameof(fresh));
}
NoLongerRequireStandard(old);
RequireStandard(fresh);
}
