public override IPermission Union(IPermission target)
{
ZoneIdentityPermission zip = Cast(target);
if (zip == null)
{
return((zone == SecurityZone.NoZone) ? null : Copy());
}
if (zone == zip.zone || zip.zone == SecurityZone.NoZone)
{
return(Copy());
}
if (zone == SecurityZone.NoZone)
{
return(zip.Copy());
}
#if NET_2_0
throw new ArgumentException(Locale.GetText(
"Union impossible"));
#else
return(null);
#endif
}
/// <include file='doc\ZoneIdentityPermission.uex' path='docs/doc[@for="ZoneIdentityPermission.Union"]/*' />
public override IPermission Union(IPermission target)
{
if (target == null)
{
return(this.m_zone != SecurityZone.NoZone ? this.Copy() : null);
}
else if (!VerifyType(target))
{
throw new
ArgumentException(
String.Format(Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName)
);
}
ZoneIdentityPermission operand = (ZoneIdentityPermission)target;
if (this.m_zone == operand.m_zone || operand.m_zone == SecurityZone.NoZone)
{
return(this.Copy());
}
else if (this.m_zone == SecurityZone.NoZone)
{
return(operand.Copy());
}
else
{
return(null);
}
}
/// <summary>Creates a permission that is the union of the current permission and the specified permission.</summary>
/// <returns>A new permission that represents the union of the current permission and the specified permission.</returns>
/// <param name="target">A permission to combine with the current permission. It must be of the same type as the current permission. </param>
/// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not of the same type as the current permission. -or-The two permissions are not equal and the current permission does not represent the <see cref="F:System.Security.SecurityZone.NoZone" /> security zone.</exception>
public override IPermission Union(IPermission target)
{
ZoneIdentityPermission zoneIdentityPermission = this.Cast(target);
if (zoneIdentityPermission == null)
{
IPermission result;
if (this.zone == SecurityZone.NoZone)
{
IPermission permission = null;
result = permission;
}
else
{
result = this.Copy();
}
return(result);
}
if (this.zone == zoneIdentityPermission.zone || zoneIdentityPermission.zone == SecurityZone.NoZone)
{
return(this.Copy());
}
if (this.zone == SecurityZone.NoZone)
{
return(zoneIdentityPermission.Copy());
}
throw new ArgumentException(Locale.GetText("Union impossible"));
}
private ZoneIdentityPermission BasicTestZone (SecurityZone zone, bool special)
{
ZoneIdentityPermission zip = new ZoneIdentityPermission (zone);
Assert.AreEqual (zone, zip.SecurityZone, "SecurityZone");
ZoneIdentityPermission copy = (ZoneIdentityPermission) zip.Copy ();
Assert.IsTrue (Same (zip, copy), "Equals-Copy");
Assert.IsTrue (zip.IsSubsetOf (copy), "IsSubset-1");
Assert.IsTrue (copy.IsSubsetOf (zip), "IsSubset-2");
if (special) {
Assert.IsFalse (zip.IsSubsetOf (null), "IsSubset-Null");
}
IPermission intersect = zip.Intersect (copy);
if (special) {
Assert.IsTrue (intersect.IsSubsetOf (zip), "IsSubset-3");
Assert.IsFalse (Object.ReferenceEquals (zip, intersect), "!ReferenceEquals1");
Assert.IsTrue (intersect.IsSubsetOf (copy), "IsSubset-4");
Assert.IsFalse (Object.ReferenceEquals (copy, intersect), "!ReferenceEquals2");
}
Assert.IsNull (zip.Intersect (null), "Intersect with null");
intersect = zip.Intersect (new ZoneIdentityPermission (PermissionState.None));
Assert.IsNull (intersect, "Intersect with PS.None");
// note: can't be tested with PermissionState.Unrestricted
// XML roundtrip
SecurityElement se = zip.ToXml ();
copy.FromXml (se);
Assert.IsTrue (Same (zip, copy), "Equals-Xml");
return zip;
}