tests/symbol.pure.lisp

   1 ;;;; miscellaneous tests of SYMBOL-related stuff
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 ;;; Reported by Paul F. Dietz
  15 (with-test (:name (:symbol :non-simple-string-name))
  16   (let ((sym (make-symbol (make-array '(1) :element-type 'character
  17                                       :adjustable t :initial-contents "X"))))
  18     (assert (simple-string-p (symbol-name sym)))
  19     (print sym (make-broadcast-stream))))
  20
  21 (with-test (:name (gentemp :pprinter))
  22   (let* ((*print-pprint-dispatch* (copy-pprint-dispatch)))
  23     (set-pprint-dispatch 'string
  24                          (lambda (stream obj)
  25                            (declare (ignore obj))
  26                            (write-string "BAR-" stream)))
  27     (assert (string= "FOO-" (gentemp "FOO-") :end2 4))))
  28
  29 (with-test (:name (gensym :fixnum-restriction))
  30   (gensym (1+ most-positive-fixnum)))
  31
  32 ;; lp#1439921
  33 ;; CLHS states that SYMBOL-FUNCTION of a symbol naming a special operator
  34 ;; or macro must return something implementation-defined that might not
  35 ;; be a function. In this implementation it is a function, but it is illegal
  36 ;; to assign that function into another symbol via (SETF FDEFINITION).
  37 (with-test (:name :setf-fdefinition-no-magic-functions)
  38   (assert-error (setf (fdefinition 'mysym) (fdefinition 'and)))
  39   (assert-error (setf (fdefinition 'mysym) (fdefinition 'if)))
  40   (assert-error (setf (symbol-function 'mysym) (symbol-function 'and)))
  41   (assert-error (setf (symbol-function 'mysym) (symbol-function 'if))))
  42
  43 (with-test (:name :macro-guard-function-name)
  44   (do-all-symbols (s)
  45     (when (macro-function s)
  46       (let* ((f (symbol-function s))
  47              (name (sb-kernel:%fun-name f)))
  48         (if (special-operator-p s)
  49             (assert (typep name '(cons (eql :special)
  50                                        (cons symbol null))))
  51             (assert (typep name '(cons (eql :macro)
  52                                        (cons symbol null)))))))))
  53
  54 (with-test (:name :fdefinition-no-consing
  55             :skipped-on :interpreter)
  56   (ctu:assert-no-consing (fdefinition 'list)))
  57
  58 (with-test (:name :tree-shaker :skipped-on :sb-devel)
  59   ;; Assert that even without the "!" prefix convention
  60   ;; these used-only-at-cross-compile-time macros disappear.
  61   (dolist (s '("DEFINE-FOP"
  62                "DEFINE-TYPE-CLASS"
  63                "DEFINE-TYPE-METHOD"
  64                "DEF-TYPE-TRANSLATOR"
  65                "DEFINE-TYPE-VOP"
  66                "DEFINE-PRIMITIVE-OBJECT"))
  67     (assert (not (apropos-list s)))))
  68
  69 (with-test (:name :progv-no-body)
  70   (checked-compile-and-assert
  71    ()
  72    '(lambda (vars vals)
  73      (progv vars vals))
  74    ((nil nil) nil)))