Function: -flip

-flip is a byte-compiled function defined in dash.el.

Signature

(-flip FN)

Documentation

Return a function that calls FN with its arguments reversed.

The returned function takes the same number of arguments as FN.

For example, the following two expressions are morally equivalent:

  (funcall (-flip #'-) 1 2) = (- 2 1)

See also: -rotate-args.

View in manual

Source Code

;; Defined in ~/.emacs.d/elpa/dash-20260221.1346/dash.el
(defun -flip (fn)
  "Return a function that calls FN with its arguments reversed.
The returned function takes the same number of arguments as FN.

For example, the following two expressions are morally
equivalent:

  (funcall (-flip #\\='-) 1 2) = (- 2 1)

See also: `-rotate-args'."
  (declare (pure t) (side-effect-free error-free))
  (lambda (&rest args) ;; Open-code for speed.
    (cond ((cddr args) (apply fn (nreverse args)))
          ((cdr args) (funcall fn (cadr args) (car args)))
          (args (funcall fn (car args)))
          ((funcall fn)))))