diff options
Diffstat (limited to 'third_party/lisp/alexandria/features.lisp')
| -rw-r--r-- | third_party/lisp/alexandria/features.lisp | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/third_party/lisp/alexandria/features.lisp b/third_party/lisp/alexandria/features.lisp deleted file mode 100644 index 67348dbba43b..000000000000 --- a/third_party/lisp/alexandria/features.lisp +++ /dev/null @@ -1,14 +0,0 @@ -(in-package :alexandria) - -(defun featurep (feature-expression) - "Returns T if the argument matches the state of the *FEATURES* -list and NIL if it does not. FEATURE-EXPRESSION can be any atom -or list acceptable to the reader macros #+ and #-." - (etypecase feature-expression - (symbol (not (null (member feature-expression *features*)))) - (cons (check-type (first feature-expression) symbol) - (eswitch ((first feature-expression) :test 'string=) - (:and (every #'featurep (rest feature-expression))) - (:or (some #'featurep (rest feature-expression))) - (:not (assert (= 2 (length feature-expression))) - (not (featurep (second feature-expression)))))))) |