narrow-to-defunnarrow-to-defun is an interactive compiled Lisp function in `
lisp.el'. It is bound to C-x n d.
(narrow-to-defun &optional INCLUDE-COMMENTS) Make text outside current defun invisible. The current defun is the one that contains point or follows point. Preceding comments are included if INCLUDE-COMMENTS is non-nil. Interactively, the behavior depends on `narrow-to-defun-include-comments'.