(in-package :seq-test)
+;;; user-defined mock sequence class for testing generic versions of
+;;; sequence functions.
+(defclass list-backed-sequence (standard-object
+ sequence)
+ ((elements :initarg :elements :type list :accessor %elements)))
+
+(defmethod sequence:make-sequence-like ((sequence list-backed-sequence) length
+ &rest args &key
+ initial-element initial-contents)
+ (declare (ignore initial-element initial-contents))
+ (make-instance 'list-backed-sequence
+ :elements (apply #'sequence:make-sequence-like
+ '() length args)))
+
+(defmethod sequence:length ((sequence list-backed-sequence))
+ (length (%elements sequence)))
+
+(defmethod sequence:elt
+ ((sequence list-backed-sequence) index)
+ (nth index (%elements sequence)))
+
+(defmethod (setf sequence:elt)
+ (new-value (sequence list-backed-sequence) index)
+ (setf (nth index (%elements sequence)) new-value))
+
;;; helper functions for exercising SEQUENCE code on data of many
;;; specialized types, and in many different optimization scenarios
(defun for-every-seq-1 (base-seq snippet)
- (dolist (seq-type '(list
- (simple-array t 1)
- (vector t)
- (simple-array character 1)
- (vector character)
- (simple-array (signed-byte 4) 1)
- (vector (signed-byte 4))))
- (flet ((entirely (eltype)
- (every (lambda (el) (typep el eltype)) base-seq)))
+ (labels
+ ((entirely (eltype)
+ (every (lambda (el) (typep el eltype)) base-seq))
+ (make-sequence-for-type (type)
+ (etypecase type
+ ((member list list-backed-sequence)
+ (coerce base-seq type))
+ ((cons (eql simple-array) (cons * (cons (eql 1) null)))
+ (destructuring-bind (eltype one) (rest type)
+ (when (entirely eltype)
+ (coerce base-seq type))))
+ ((cons (eql vector))
+ (destructuring-bind (eltype) (rest type)
+ (when (entirely eltype)
+ (let ((initial-element
+ (cond ((subtypep eltype 'character)
+ #\!)
+ ((subtypep eltype 'number)
+ 0)
+ (t #'error))))
+ (replace (make-array
+ (+ (length base-seq)
+ (random 3))
+ :element-type eltype
+ :fill-pointer
+ (length base-seq)
+ :initial-element
+ initial-element)
+ base-seq))))))))
+ (dolist (seq-type '(list
+ (simple-array t 1)
+ (vector t)
+ (simple-array character 1)
+ (vector character)
+ (simple-array (signed-byte 4) 1)
+ (vector (signed-byte 4))
+ list-backed-sequence))
(dolist (declaredness '(nil t))
(dolist (optimization '(((speed 3) (space 0))
((speed 2) (space 2))
((speed 1) (space 2))
((speed 0) (space 1))))
- (let* ((seq (if (eq seq-type 'list)
- (coerce base-seq 'list)
- (destructuring-bind (type-first &rest type-rest)
- seq-type
- (ecase type-first
- (simple-array
- (destructuring-bind (eltype one) type-rest
- (assert (= one 1))
- (if (entirely eltype)
- (coerce base-seq seq-type)
- (return))))
- (vector
- (destructuring-bind (eltype) type-rest
- (if (entirely eltype)
- (let ((initial-element
- (cond ((subtypep eltype 'character)
- #\!)
- ((subtypep eltype 'number)
- 0)
- (t #'error))))
- (replace (make-array
- (+ (length base-seq)
- (random 3))
- :element-type eltype
- :fill-pointer
- (length base-seq)
- :initial-element
- initial-element)
- base-seq))
- (return))))))))
- (lambda-expr `(lambda (seq)
- ,@(when declaredness
- `((declare (type ,seq-type seq))))
- (declare (optimize ,@optimization))
- ,snippet)))
+ (let ((seq (make-sequence-for-type seq-type))
+ (lambda-expr `(lambda (seq)
+ ,@(when declaredness
+ `((declare (type ,seq-type seq))))
+ (declare (optimize ,@optimization))
+ ,snippet)))
+ (when (not seq)
+ (return))
(format t "~&~S~%" lambda-expr)
(multiple-value-bind (fun warnings-p failure-p)
(compile nil lambda-expr)
(assert (eql 4 ; modified more, avoids charset technicalities completely
(find 5 '(6 4) :test '>)))
+(with-test (:name sequence:emptyp)
+ (for-every-seq #()
+ '((eq t (sequence:emptyp seq))))
+ (for-every-seq #(1)
+ '((eq nil (sequence:emptyp seq)))))
+
;;; tests of FIND, POSITION, FIND-IF, and POSITION-IF (and a few for
;;; deprecated FIND-IF-NOT and POSITION-IF-NOT too)
(for-every-seq #()
;; ... though not in all cases.
(assert-type-error (coerce '(#\f #\o #\o) 'simple-array))))
+;; CONCATENATE used to fail for generic sequences for result-type NULL.
+(with-test (:name (concatenate :result-type-null :bug-1162301))
+ (assert (sequence:emptyp (concatenate 'null)))
+
+ (for-every-seq #()
+ '((sequence:emptyp (concatenate 'null seq))
+ (sequence:emptyp (concatenate 'null seq seq))
+ (sequence:emptyp (concatenate 'null seq #()))
+ (sequence:emptyp (concatenate 'null seq ""))))
+
+ (for-every-seq #(1)
+ (mapcar (lambda (form)
+ `(typep (nth-value 1 (ignore-errors ,form)) 'type-error))
+ '((concatenate 'null seq)
+ (concatenate 'null seq seq)
+ (concatenate 'null seq #())
+ (concatenate 'null seq "2")))))
+
;;; As pointed out by Raymond Toy on #lisp IRC, MERGE had some issues
;;; with user-defined types until sbcl-0.7.8.11
(deftype list-typeoid () 'list)
4))
(assert-type-error (merge 'nil () () '<))
;; CONCATENATE
- (assert-type-error (concatenate 'null '(1) "2"))
(assert-type-error (concatenate 'cons #() ()))
(assert-type-error (concatenate '(cons t null) #(1 2 3) #(4 5 6)))
- (assert (null (concatenate 'null () #())))
(assert (= (length (concatenate 'cons #() '(1) "2 3")) 4))
(assert (= (length (concatenate '(cons t cons) '(1) "34")) 3))
(assert-type-error (concatenate 'nil '(3)))