;;;; While most of SBCL is derived from the CMU CL system, the test
;;;; files (like this one) were written from scratch after the fork
;;;; from CMU CL.
-;;;;
+;;;;
;;;; This software is in the public domain and is provided with
;;;; absolutely no warranty. See the COPYING and CREDITS files for
;;;; more information.
-(in-package :cl-user)
+(load "assertoid.lisp")
+(use-package "ASSERTOID")
;;; Bug 30, involving mistakes in binding the read table, made this
;;; code fail.
(assert (equalp res #(#\x)))
(assert (= pos 5)))
+;;; Bug 51b. (try to throw READER-ERRORs when the reader encounters
+;;; dubious input)
+(assert (raises-error? (read-from-string "1e1000") reader-error))
+(assert (raises-error? (read-from-string "1/0") reader-error))
+
+;;; Bug reported by Antonio Martinez on comp.lang.lisp 2003-02-03 in
+;;; message <b32da960.0302030640.7d6fc610@posting.google.com>: reading
+;;; circular instances of CLOS classes didn't work:
+(defclass box ()
+ ((value :initarg :value :reader value)))
+(defun read-box (stream char)
+ (declare (ignore char))
+ (let ((objects (read-delimited-list #\] stream t)))
+ (unless (= 1 (length objects))
+ (error "Unknown box reader syntax"))
+ (make-instance 'box :value (first objects))))
+(set-macro-character #\[ 'read-box)
+(set-syntax-from-char #\] #\))
+(multiple-value-bind (res pos)
+ (read-from-string "#1=[#1#]")
+ (assert (eq (value res) res))
+ (assert (= pos 8)))
+;;; much, much, later (in Feb 2007), CSR noticed that the problem
+;;; still exists for funcallable instances.
+(defclass funcallable-box (box sb-mop:funcallable-standard-object) ()
+ (:metaclass sb-mop:funcallable-standard-class))
+(defun read-funcallable-box (stream char)
+ (declare (ignore char))
+ (let ((objects (read-delimited-list #\} stream t)))
+ (unless (= 1 (length objects))
+ (error "Unknown box reader syntax"))
+ (make-instance 'funcallable-box :value (first objects))))
+(set-macro-character #\{ 'read-funcallable-box)
+(set-syntax-from-char #\} #\))
+(multiple-value-bind (res pos)
+ (read-from-string "#1={#1#}")
+ (assert (eq (value res) res))
+ (assert (= pos 8)))
+
+;;; CSR managed to break the #S reader macro in the process of merging
+;;; SB-PCL:CLASS and CL:CLASS -- make sure it works
+(defstruct readable-struct a)
+(macrolet
+ ((frob (string)
+ `(assert (eq (readable-struct-a (read-from-string ,string)) t))))
+ (frob "#S(READABLE-STRUCT :A T)")
+ (frob "#S(READABLE-STRUCT A T)")
+ (frob "#S(READABLE-STRUCT \"A\" T)")
+ (frob "#S(READABLE-STRUCT #\\A T)")
+ (frob "#S(READABLE-STRUCT #\\A T :A NIL)"))
+(macrolet
+ ((frob (string)
+ `(assert (raises-error? (read-from-string ,string) reader-error))))
+ (frob "#S(READABLE-STRUCT . :A)")
+ (frob "#S(READABLE-STRUCT :A . T)")
+ (frob "#S(READABLE-STRUCT :A T . :A)")
+ (frob "#S(READABLE-STRUCT :A T :A . T)"))
+
+;;; reported by Henrik Motakef
+(defpackage "")
+(assert (eq (symbol-package (read-from-string "||::FOO"))
+ (find-package "")))
+
+;;; test nested reads, test case by Helmut Eller for cmucl
+(defclass my-in-stream (sb-gray:fundamental-character-input-stream)
+ ((last-char :initarg :last-char)))
+
+(let ((string " a ")
+ (i 0))
+ (defmethod sb-gray:stream-read-char ((s my-in-stream))
+ (with-input-from-string (s "b") (read s))
+ (with-slots (last-char) s
+ (cond (last-char (prog1 last-char (setf last-char nil)))
+ (t (prog1 (aref string i)
+ (setq i (mod (1+ i) (length string)))))))))
+
+(defmethod sb-gray:stream-unread-char ((s my-in-stream) char)
+ (setf (slot-value s 'last-char) char)
+ nil)
+
+(assert (eq 'a (read (make-instance 'my-in-stream :last-char nil))))
+
+;;; NIL as the last argument to SET-SYNTAX-FROM-CHAR in compiled code,
+;;; reported by Levente Mészáros
+(let ((fun (compile nil '(lambda ()
+ (set-syntax-from-char #\{ #\( *readtable* nil)))))
+ (funcall fun)
+ (assert (equal '(:ok) (read-from-string "{:ok)"))))
+
+(with-test (:name :bad-recursive-read)
+ ;; This use to signal an unbound-variable error instead.
+ (assert (eq :error
+ (handler-case
+ (with-input-from-string (s "42")
+ (read s t nil t))
+ (reader-error (e)
+ :error)))))
+
+(with-test (:name :standard-readtable-modified)
+ (macrolet ((test (form &optional op)
+ `(assert
+ (eq :error
+ (handler-case
+ (progn ,form t)
+ (sb-int:standard-readtable-modified-error (e)
+ ,@(when op
+ `((assert
+ (equal ,op (sb-kernel::standard-readtable-modified-operation e)))))
+ :error))))))
+ (let ((rt *readtable*))
+ (with-standard-io-syntax
+ (let ((srt *readtable*))
+ (test (setf (readtable-case srt) :preserve) '(setf readtable-case))
+ (test (copy-readtable rt srt) 'copy-readtable)
+ (test (set-syntax-from-char #\a #\a srt rt) 'set-syntax-from-char)
+ (test (set-macro-character #\a (constantly t) t srt) 'set-macro-character)
+ (test (make-dispatch-macro-character #\! t srt))
+ (test (set-dispatch-macro-character #\# #\a (constantly t) srt) 'set-dispatch-macro-character))))))
+
+(with-test (:name :reader-package-errors)
+ (flet ((test (string)
+ (handler-case
+ (progn (read-from-string string) :feh)
+ (error (e)
+ (when (and (typep e 'reader-error) (typep e 'package-error))
+ (package-error-package e))))))
+ (assert (equal "NO-SUCH-PKG" (test "no-such-pkg::foo")))
+ (assert (eq (find-package :cl) (test "cl:no-such-sym")))))
+
+;;; THIS SHOULD BE LAST as it frobs the standard readtable
+(with-test (:name :set-macro-character-nil)
+ (handler-bind ((sb-int:standard-readtable-modified-error #'continue))
+ (let ((fun (lambda (&rest args) 'ok)))
+ ;; NIL means the standard readtable.
+ (assert (eq t (set-macro-character #\~ fun nil nil)))
+ (assert (eq fun (get-macro-character #\~ nil)))
+ (assert (eq t (set-dispatch-macro-character #\# #\~ fun nil)))
+ (assert (eq fun (get-dispatch-macro-character #\# #\~ nil))))))
+
;;; success
-(quit :unix-status 104)
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