diff options
Diffstat (limited to 'lisp/emacs-lisp/cconv.el')
| -rw-r--r-- | lisp/emacs-lisp/cconv.el | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/cconv.el b/lisp/emacs-lisp/cconv.el index 761e33c059d..70fa71a0da4 100644 --- a/lisp/emacs-lisp/cconv.el +++ b/lisp/emacs-lisp/cconv.el @@ -143,7 +143,19 @@ Returns a form where all lambdas don't have any free variables." ;; Analyze form - fill these variables with new information. (cconv-analyse-form form '()) (setq cconv-freevars-alist (nreverse cconv-freevars-alist)) - (cconv-convert form nil nil))) ; Env initially empty. + (prog1 (cconv-convert form nil nil) ; Env initially empty. + (cl-assert (null cconv-freevars-alist))))) + +;;;###autoload +(defun cconv-warnings-only (form) + "Add the warnings that closure conversion would encounter." + (let ((cconv-freevars-alist '()) + (cconv-lambda-candidates '()) + (cconv-captured+mutated '())) + ;; Analyze form - fill these variables with new information. + (cconv-analyse-form form '()) + ;; But don't perform the closure conversion. + form)) (defconst cconv--dummy-var (make-symbol "ignored")) |