tests/compiler.pure-cload.lisp

   1 ;;;; miscellaneous tests of compiling toplevel forms
   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 (in-package :cl-user)
  15
  16 ;;; Exercise a compiler bug (by causing a call to ERROR).
  17 ;;;
  18 ;;; This bug was in sbcl-0.6.11.6.
  19 (let ((a 1) (b 1))
  20   (declare (type (mod 1000) a b))
  21   (let ((tmp (= 10 (+ (incf a) (incf a) (incf b) (incf b)))))
  22     (or tmp (error "TMP not true"))))
  23
  24 ;;; Exercise a (byte-)compiler bug by causing a call to ERROR, not
  25 ;;; because the symbol isn't defined as a variable, but because
  26 ;;;  TYPE-ERROR in SB-KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER:
  27 ;;;     0 is not of type (OR FUNCTION SB-KERNEL:FDEFN).
  28 ;;; Correct behavior is to warn at compile time because the symbol
  29 ;;; isn't declared as a variable, but to set its SYMBOL-VALUE anyway.
  30 ;;;
  31 ;;; This bug was in sbcl-0.6.11.13.
  32 (print (setq improperly-declared-var '(1 2)))
  33 (assert (equal (symbol-value 'improperly-declared-var) '(1 2)))
  34 (makunbound 'improperly-declared-var)
  35 ;;; This is a slightly different way of getting the same symptoms out
  36 ;;; of the sbcl-0.6.11.13 byte compiler bug.
  37 (print (setq *print-level* *print-level*))
  38
  39 ;;; PROGV with different numbers of variables and values
  40 (let ((a 1))
  41   (declare (special a))
  42   (assert (equal (list a (progv '(a b) '(:a :b :c)
  43                            (assert (eq (symbol-value 'nil) nil))
  44                            (list (symbol-value 'a) (symbol-value 'b)))
  45                        a)
  46                  '(1 (:a :b) 1)))
  47   (assert (equal (list a (progv '(a b) '(:a :b)
  48                            (assert (eq (symbol-value 'nil) nil))
  49                            (list (symbol-value 'a) (symbol-value 'b)))
  50                        a)
  51                  '(1 (:a :b) 1)))
  52   (assert (not (boundp 'b))))
  53
  54 (let ((a 1) (b 2))
  55   (declare (special a b))
  56   (assert (equal (list a b (progv '(a b) '(:a)
  57                              (assert (eq (symbol-value 'nil) nil))
  58                              (assert (not (boundp 'b)))
  59                              (symbol-value 'a))
  60                        a b)
  61                  '(1 2 :a 1 2))))
  62
  63 ;;; bug in LOOP, reported by ??? on c.l.l
  64 (flet ((foo (l)
  65          (loop for x in l
  66                when (symbolp x) return x
  67                while (numberp x)
  68                collect (list x))))
  69   (assert (equal (foo '(1 2 #\a 3)) '((1) (2))))
  70   (assert (equal (foo '(1 2 x 3)) 'x)))
  71
  72 ;;; bug 282
  73 ;;;
  74 ;;; Verify type checking policy in full calls: the callee is supposed
  75 ;;; to perform check, but the results should not be used before the
  76 ;;; check will be actually performed.
  77 #+nil
  78 (locally
  79     (declare (optimize (safety 3)))
  80   (flet ((bar (f a)
  81            (declare (type (simple-array (unsigned-byte 32) (*)) a))
  82            (declare (type (function (fixnum)) f))
  83            (funcall f (aref a 0))))
  84     (assert
  85      (eval `(let ((n (1+ most-positive-fixnum)))
  86               (if (not (typep n '(unsigned-byte 32)))
  87                   (warn 'style-warning
  88                         "~@<This test is written for platforms with ~
  89                         ~@<(proper-subtypep 'fixnum '(unsigned-byte 32))~:@>.~:@>")
  90                   (block nil
  91                     (funcall ,#'bar
  92                              (lambda (x) (when (eql x n) (return t)))
  93                              (make-array 1 :element-type '(unsigned-byte 32)
  94                                          :initial-element n))
  95                     nil)))))))