Commit 4c0d450f authored by pfdietz's avatar pfdietz

Fix =t, add some utility functions for mv checking.

parent 8039e427
......@@ -12,6 +12,37 @@
(defun notnot (x) (not (not x)))
(defmacro notnot-mv (form)
`(apply #'values (mapcar #'notnot (multiple-value-list ,form))))
;;; Macro to check that a function is returning a single value
(defmacro check-value (form &optional (num 1))
(let ((v (gensym))
(n (gensym)))
`(let ((,v ,form)
(,n ,num))
(check-values-length ,v ,n ',form)
(car ,v))))
(defun check-values-length (results expected-number form)
(declare (type fixnum expected-number))
(let ((n expected-number))
(declare (type fixnum n))
(dolist (e results)
(declare (ignore e))
(decf n))
(unless (= n 0)
(error "Expected ~A results from ~A, got ~A results instead.~%~
Results: ~A~%" expected-number form n results))))
;;; Do multiple-value-bind, but check # of arguments
(defmacro multiple-value-bind* ((&rest vars) form &body body)
(let ((len (length vars))
(v (gensym)))
`(let ((,v (multiple-value-list ,form)))
(check-values-length ,v ,len ',form)
(destructuring-bind ,vars ,v ,@body))))
;;; Comparison functions that are like various builtins,
;;; but are guaranteed to return T for true.
......@@ -33,7 +64,7 @@
(defun =t (x &rest args)
"Like =, but guaranteed to return T for true."
(apply #'values (mapcar #'notnot (multiple-value-list (apply #'= args)))))
(apply #'values (mapcar #'notnot (multiple-value-list (apply #'= x args)))))
(defun make-int-list (n)
(loop for i from 0 below n collect i))
......@@ -994,7 +1025,7 @@ the condition to go uncaught if it cannot be classified."
(let ((num 0))
(declare (fixnum num))
(do-external-symbols (s p num)
s
s
(incf num))))
(defun safely-delete-package (package-designator)
......
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