RFR: 8250652: Add logical operations on types

[Kim Barrett]

> On Aug 4, 2020, at 4:00 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> 
> Hi,
> 
> On 28.07.20 14:34, Kim Barrett wrote:
>> Please review this change which adds metafunctions for performing
>> logical operations on types.  These are based on facilities provided
>> by C++17, but which can be useful before we are using that version of
>> the language standard.  (I already have some in-development changes
>> that use some of them.)
>> I've not provided stand-ins for the associated template variables,
>> since template variables are not yet on the list approved for use in
>> HotSpot.  They can easily be added later if desired.
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8250652
>> Webrev:
>> https://cr.openjdk.java.net/~kbarrett/8250652/open.00/
>> Testing:
>> tier1
> 
>  lgtm. May I ask what these in-development changes are about?
> 
> Thanks,
>  Thomas

Thanks.

Additional metaprogramming tools that simplify function template SFINAE
control, which I then intend to use for things like JDK-8247909,
JDK-8247910, and an as-yet unfiled RFE to do some similar things for Access
operations (after another as-yet unfiled RFE to make Access decorators
type-safe using scoped enums).