public virtual PermissionSet Union(PermissionSet other)
#endif
{
if (other == null)
{
return(this.Copy());
}
PermissionSet copy = null;
if (this.IsUnrestricted() || other.IsUnrestricted())
{
#if NET_2_0
// there are no child elements in unrestricted permission sets
return(new PermissionSet(PermissionState.Unrestricted));
#else
copy = this.Copy();
// so we keep the "right" type (e.g. NamedPermissionSet)
copy.Clear();
copy.state = PermissionState.Unrestricted;
// copy all permissions that do not implement IUnrestrictedPermission
foreach (IPermission p in this.list)
{
if (!(p is IUnrestrictedPermission))
{
copy.AddPermission(p);
}
}
foreach (IPermission p in other.list)
{
if (!(p is IUnrestrictedPermission))
{
copy.AddPermission(p);
}
}
#endif
}
else
{
copy = this.Copy();
// PermissionState.None -> copy all permissions
foreach (IPermission p in other.list)
{
copy.AddPermission(p);
}
}
return(copy);
}