display-buffer-same-windowdisplay-buffer-same-window is a compiled Lisp function in `
window.el'. (display-buffer-same-window BUFFER ALIST) Display BUFFER in the selected window. This fails if ALIST has a non-nil `inhibit-same-window' entry, or if the selected window is a minibuffer window or is dedicated to another buffer; in that case, return nil. Otherwise, return the selected window.