diff options
Diffstat (limited to 'lisp/emacs-lisp')
-rw-r--r-- | lisp/emacs-lisp/cl.el | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/lisp/emacs-lisp/cl.el b/lisp/emacs-lisp/cl.el index f77c15414a3..970d9180273 100644 --- a/lisp/emacs-lisp/cl.el +++ b/lisp/emacs-lisp/cl.el @@ -203,12 +203,38 @@ Keywords supported: :test :test-not :key" ;;; simulated. Instead, multiple-value-bind and friends simply expect ;;; the target form to return the values as a list. -(defalias 'values 'list) -(defalias 'values-list 'identity) -(defalias 'multiple-value-list 'identity) -(defalias 'multiple-value-call 'apply) ; only works for one arg -(defalias 'nth-value 'nth) +(defsubst values (&rest values) + "Return multiple values, Common Lisp style. +The arguments of `values' are the values +that the containing function should return." + (apply 'list values)) + +(defsubst values-list (list) + "Return multiple values, Common Lisp style, taken from a list. +LIST specifies the list of values +that the containing function should return." + list) +(defsubst multiple-value-list (expression) + "Return a list of the multiple values produced by EXPRESSION. +This handles multiple values in Common Lisp style, but it does not +work right when EXPRESSION calls an ordinary Emacs Lisp function +that returns just one value." + expression) + +(defsubst multiple-value-apply (function expression) + "Evaluate EXPRESSION to get multiple values and apply FUNCTION to them. +This handles multiple values in Common Lisp style, but it does not work +right when EXPRESSION calls an ordinary Emacs Lisp function that returns just +one value." + (apply function expression)) + +(defsubst nth-value (n expression) + "Evaluate EXPRESSION to get multiple values and return the Nth one. +This handles multiple values in Common Lisp style, but it does not work +right when EXPRESSION calls an ordinary Emacs Lisp function that returns just +one value." + (nth n expression)) ;;; Macros. |