RS can't see redundant qualifier with "named" aliases, bug?

Hello,

When you're using 'IO = System.IO' alias, ReSharper can remove 'System' qualifier
from 'Bar' because it won't break compilation:

new IO.StreamReader("foo"); //Here IO resolves into System.IO because you
have 'IO=System.IO' alias

On the other hand, if you'll go with 'IORef = System.IO' alias, ReSharper
cannot safely remove 'System' qualifier because it will break compilation:

new IO.StreamReader("foo"); //Doesn't compile because the compiler doesn't
know what's IO now

new IORef.StreamReader("foo"); //Compiles fine

Let me know if this helps. Thank you!

Andrey Serebryansky
Support Engineer
JetBrains, Inc
http://www.jetbrains.com
"Develop with pleasure!"

Bug or by design? When using alias IORef the System in Bar method
isn't treated as redundant, but using alias named  IO will.

using IORef = System.IO;
//Uncomment this line and RS will indicate "Qualifier is Redundant"
for System qualifier.
//using IO = System.IO;
namespace FooNS
{
class Foo
{
void Bar()
{
//System below is not marked as redundant with IORef alias
new System.IO.StreamReader("foo");
}
}
}
Thanks.

---
Original message URL:
http://devnet.jetbrains.net/message/5267043#5267043

Ah off course. Thanks.

( I guess my "quickfix need" instead could be a feature request so I added a comment for it in existing issue
http://youtrack.jetbrains.net/issue/RSRP-42386 "Introduce namespace alias refactoring". )