User-defined "opIs"

[ketmar via Digitalmars-d]

On Wed, 24 Sep 2014 22:48:35 +0000
Meta via Digitalmars-d <digitalmars-d at puremagic.com> wrote:

> Is this supposed to work, and if not, should an enhancement be 
> made to allow it?
i don't think that ER is needed. `is` is non-overloadable by design.
making it overloadable will bring in the requrements for something like
`is_which_is_not_overloadable`. which in turn will be asked to make
overloadable, which will bring... ah, and so on. ;-)

i see some little problems with Proxy here, though. well, Proxy is not
ideal. ;-)
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