Using pcase in ->> macro

[yyoncho]

We had some conversations about the ability to plug pcase into ->> macro(the alternative is using generic -shift-args which will allow using ->> with any function that will require)

(defmacro ->>pcase (&rest rest)
  (declare (indent 0) (debug t))
  `(pcase ,@(-rotate 1 rest)))

(->> (list 1 2 3)
     (-filter #'evenp)
     (->>pcase
       (`() (user-error "Nothing found"))
       (`(,spec) spec)
       (_ (user-error "More than one")))
     (number-to-string))

I know that one can use --> but the ability to plug conditional check in the ->> seems to be very handy.

What do maintainers think about having such functionality?