1 ;;; A frontend for the SBCL code coverage facility. Written by Juho
2 ;;; Snellman, and placed under public domain.
4 ;;; This module includes a modified version of the source path parsing
5 ;;; routines from Swank. That code was written by Helmut Eller, and
6 ;;; was placed under Public Domain
11 #:reset-coverage #:clear-coverage
12 #:store-coverage-data))
14 (in-package #:sb-cover)
16 (defclass sample-count ()
17 ((mode :accessor mode-of :initarg :mode)
18 (all :accessor all-of :initform 0)
19 (ok :accessor ok-of :initform 0)))
21 (defun clear-coverage ()
22 "Clear all files from the coverage database. The files will be re-entered
23 into the database when the FASL files (produced by compiling
24 STORE-COVERAGE-DATA optimization policy set to 3) are loaded again into the
26 (sb-c::clear-code-coverage))
28 (defun reset-coverage ()
29 "Reset all coverage data back to the `Not executed` state."
30 (sb-c::reset-code-coverage))
32 (defun report (directory &key (external-format :default))
33 "Print a code coverage report of all instrumented files into DIRECTORY.
34 If DIRECTORY does not exist, it will be created. The main report will be
35 printed to the file cover-index.html. The external format of the source
36 files can be specified with the EXTERNAL-FORMAT parameter."
38 (*default-pathname-defaults* (merge-pathnames (pathname directory))))
39 (ensure-directories-exist *default-pathname-defaults*)
40 (maphash (lambda (k v)
42 (let* ((n (substitute #\_ #\. (substitute #\_ #\/ k)))
43 (path (make-pathname :name n :type "html")))
45 (with-open-file (stream path
48 :if-does-not-exist :create)
49 (push (list* k n (report-file k stream external-format))
52 (let ((report-file (make-pathname :name "cover-index" :type "html")))
53 (with-open-file (stream report-file
54 :direction :output :if-exists :supersede
55 :if-does-not-exist :create)
58 (warn "No coverage data found for any file, producing an empty report. Maybe you~%forgot to (DECLAIM (OPTIMIZE SB-COVER:STORE-COVERAGE-DATA))?")
59 (format stream "<h3>No code coverage data found.</h3>")
62 (format stream "<table class='summary'>")
63 (format stream "<tr class='head-row'><td></td><td class='main-head' colspan='3'>Expression</td><td class='main-head' colspan='3'>Branch</td></tr>")
64 (format stream "<tr class='head-row'>~{<td width='80px'>~A</td>~}</tr>"
67 "Covered" "Total" "%"))
68 (setf paths (sort paths #'string< :key #'car))
69 (loop for prev = nil then source-file
70 for (source-file report-file expression branch) in paths
71 for even = nil then (not even)
72 do (when (or (null prev)
73 (not (equal (pathname-directory (pathname source-file))
74 (pathname-directory (pathname prev)))))
75 (format stream "<tr class='subheading'><td colspan='7'>~A</td></tr>~%"
76 (namestring (make-pathname :directory (pathname-directory (pathname source-file))))))
77 do (format stream "<tr class='~:[odd~;even~]'><td class='text-cell'><a href='~a.html'>~a</a></td>~{<td>~:[-~;~:*~a~]</td><td>~:[-~;~:*~a~]</td><td>~:[-~;~:*~5,1f~]</td>~}</tr>"
80 (enough-namestring (pathname source-file)
81 (pathname source-file))
82 (list (ok-of expression)
88 (format stream "</table>"))
91 (defun percent (count)
92 (unless (zerop (all-of count))
94 (/ (ok-of count) (all-of count)))))
96 (defun report-file (file html-stream external-format)
97 "Print a code coverage report of FILE into the stream HTML-STREAM."
98 (format html-stream "<html><head>")
99 (write-styles html-stream)
100 (format html-stream "</head><body>")
101 (let* ((source (detabify (read-file file external-format)))
102 (states (make-array (length source)
104 :element-type '(unsigned-byte 4)))
105 ;; Convert the code coverage records to a more suitable format
106 ;; for this function.
107 (expr-records (convert-records (gethash file *code-coverage-info*)
109 (branch-records (convert-records (gethash file *code-coverage-info*)
111 ;; Cache the source-maps
112 (maps (with-input-from-string (stream source)
116 do (setf (values form map)
118 (read-and-record-source-map stream)
125 collect (cons form map)))))
126 (mapcar (lambda (map)
127 (maphash (lambda (k locations)
129 (dolist (location locations)
130 (destructuring-bind (start end suppress) location
132 (fill-with-state source states 15 (1- start)
136 ;; Go through all records, find the matching source in the file,
137 ;; and update STATES to contain the state of the record in the
138 ;; indexes matching the source location. Process the longest paths
139 ;; first, so that the state of each index will reflect the state
140 ;; of the innermost containing form. Processes branch-records
141 ;; before expr-records of the same length, for the same reason.
142 (let ((counts (list :branch (make-instance 'sample-count :mode :branch)
143 :expression (make-instance 'sample-count
144 :mode :expression))))
145 (let ((records (append branch-records expr-records)))
146 (dolist (record (stable-sort records #'>
147 :key (lambda (e) (length (second e)))))
148 (destructuring-bind (mode path state) record
149 (let* ((path (reverse path))
151 (source-form (car (nth tlf maps)))
152 (source-map (cdr (nth tlf maps)))
153 (source-path (cdr path)))
154 (cond ((eql mode :branch)
155 (let ((count (getf counts :branch)))
156 ;; For branches mode each record accounts for two paths
162 (incf (all-of count) 2)))
164 (let ((count (getf counts :expression)))
166 (incf (ok-of count)))
167 (incf (all-of count)))))
170 (multiple-value-bind (start end)
171 (source-path-source-position (cons 0 source-path)
174 (fill-with-state source states state start end))
176 (warn "Error finding source location for source path ~A in file ~A~%" source-path file)))
177 (warn "Unable to find a source map for toplevel form ~A in file ~A~%" tlf file))))))
178 (print-report html-stream file counts states source)
179 (format html-stream "</body></html>")
180 (list (getf counts :expression)
181 (getf counts :branch)))))
183 (defun fill-with-state (source states state start end)
184 (let* ((pos (position #\Newline source
187 (start-column (if pos
191 (loop for i from start below end
192 for col from start-column
193 for char = (aref source i)
194 do (cond ((eql char #\Newline)
196 ((not (eql char #\Space))
197 (setf end-column (max end-column col)))))
198 (loop for i from start below end
199 for col from start-column
200 for char = (aref source i)
201 do (if (eql char #\Newline)
203 (when (and (zerop (aref states i))
204 #+nil (<= col end-column)
205 (>= col start-column))
206 (setf (aref states i) state))))))
208 ;;; Convert tabs to spaces
209 (defun detabify (source)
210 (with-output-to-string (stream)
211 (loop for char across source
214 do (if (eql char #\Tab)
215 (loop repeat (- 8 (mod col 8))
216 do (write-char #\Space stream)
220 (when (eql char #\Newline)
221 ;; Filter out empty last line
222 (when (eql i (1- (length source)))
225 (write-char char stream))))))
227 (defvar *counts* nil)
229 (defun print-report (html-stream file counts states source)
230 ;; Just used for testing
231 (setf *counts* counts)
232 (let ((*print-case* :downcase))
234 "<h3>Coverage report: ~a <br />~%</h3>~%" file)
235 (when (zerop (all-of (getf counts :expression)))
236 (format html-stream "<b>File has no instrumented forms</b>")
237 (return-from print-report))
238 (format html-stream "<table class='summary'><tr class='head-row'>~{<td width='80px'>~a</td>~}"
239 (list "Kind" "Covered" "All" "%"))
240 (dolist (mode '(:expression :branch))
241 (let ((count (getf counts mode)))
242 (format html-stream "<tr class='~:[odd~;even~]'><td>~A</td><td>~a</td><td>~a</td><td>~5,1F</td></tr>~%"
248 (format html-stream "</table>"))
249 (format html-stream "<div class='key'><b>Key</b><br />~%")
250 (format html-stream "<div class='state-0'>Not instrumented</div>")
251 (format html-stream "<div class='state-15'>Conditionalized out</div>")
252 (format html-stream "<div class='state-1'>Executed</div>")
253 (format html-stream "<div class='state-2'>Not executed</div>")
254 (format html-stream "<div> </div>")
255 (format html-stream "<div class='state-5'>Both branches taken</div>")
256 (format html-stream "<div class='state-6'>One branch taken</div>")
257 (format html-stream "<div class='state-10''>Neither branch taken</div>")
258 (format html-stream "</div>")
259 (format html-stream "<nobr><div><code>~%")
261 (format html-stream "</code></div></nobr>~%<nobr><div class='source'><div class='line-number'><code>~A</code></div><code> " line)
263 (loop for last-state = nil then state
266 for char across source
267 for state across states
268 do (unless (eq state last-state)
270 (format html-stream "</span>"))
271 (format html-stream "<span class='state-~a'>" state))
276 (format html-stream "</span>")
279 (format html-stream " "))
283 (if (alphanumericp char)
284 (write-char char html-stream)
285 (format html-stream "&#~A;" (char-code char))))))
286 (format html-stream "</code></div>")))
288 (defun write-styles (html-stream)
289 (format html-stream "<style type='text/css'>
290 *.state-0 { background-color: #eeeeee }
291 *.state-1 { background-color: #aaffaa }
292 *.state-5 { background-color: #44dd44 }
293 *.state-2 { background-color: #ffaaaa }
294 *.state-10 { background-color: #ee6666 }
295 *.state-15 { color: #aaaaaa; background-color: #eeeeee }
296 *.state-9,*.state-6 { background-color: #ffffaa }
297 div.key { margin: 20px; width: 200px }
298 div.source { width: 88ex; background-color: #eeeeee; padding-left: 5px;
299 /* border-style: solid none none none; border-width: 1px;
300 border-color: #dddddd */ }
302 *.line-number { color: #666666; float: left; width: 6ex; text-align: right; margin-right: 1ex; }
304 table.summary tr.head-row { background-color: #aaaaff }
305 table.summary tr td.text-cell { text-align: left }
306 table.summary tr td.main-head { text-align: center }
307 table.summary tr td { text-align: right }
308 table.summary tr.even { background-color: #eeeeff }
309 table.summary tr.subheading { background-color: #aaaaff}
310 table.summary tr.subheading td { text-align: left; font-weight: bold; padding-left: 5ex; }
313 (defun convert-records (records mode)
316 (loop for record in records
317 unless (member (caar record) '(:then :else))
324 (let ((hash (make-hash-table :test 'equal)))
325 (dolist (record records)
326 (let ((path (car record)))
327 (when (member (car path) '(:then :else))
328 (setf (gethash (cdr path) hash)
329 (logior (gethash (cdr path) hash 0)
330 (ash (if (cdr record)
333 (if (eql (car path) :then)
337 (maphash (lambda (k v)
338 (push (list mode k v) list))
342 ;;;; A mutant version of swank-source-path-parser from Swank/Slime.
344 (defun read-file (filename external-format)
345 "Return the entire contents of FILENAME as a string."
346 (with-open-file (s filename :direction :input
347 :external-format external-format)
348 (let ((string (make-string (file-length s))))
349 (read-sequence string s)
352 (defun make-source-recorder (fn source-map)
353 "Return a macro character function that does the same as FN, but
354 additionally stores the result together with the stream positions
355 before and after of calling FN in the hashtable SOURCE-MAP."
356 (declare (type function fn))
357 (lambda (stream char)
358 (declare (optimize debug safety))
359 (let ((start (file-position stream))
360 (values (multiple-value-list (funcall fn stream char)))
361 (end (file-position stream)))
362 (unless (null values)
363 (push (list start end *read-suppress*)
364 (gethash (car values) source-map)))
365 (values-list values))))
367 (defun make-source-recording-readtable (readtable source-map)
368 "Return a source position recording copy of READTABLE.
369 The source locations are stored in SOURCE-MAP."
370 (let* ((tab (copy-readtable readtable))
373 (let ((char (code-char code)))
374 (multiple-value-bind (fn term) (get-macro-character char tab)
376 (set-macro-character char (make-source-recorder fn source-map)
378 (suppress-sharp-dot tab)
379 (set-macro-character #\(
380 (make-source-recorder
381 (make-recording-read-list source-map)
385 ;;; Ripped from SB-IMPL, since location recording on a cons-cell level
386 ;;; can't be done just by simple read-table tricks.
387 (defun make-recording-read-list (source-map)
388 (lambda (stream ignore)
390 (when (eql *package* (find-package :keyword))
392 (sb-impl::read-list stream ignore)))
393 (let* ((thelist (list nil))
395 (do ((firstchar (sb-impl::flush-whitespace stream)
396 (sb-impl::flush-whitespace stream)))
397 ((char= firstchar #\) ) (cdr thelist))
398 (when (char= firstchar #\.)
399 (let ((nextchar (read-char stream t)))
400 (cond ((sb-impl::token-delimiterp nextchar)
401 (cond ((eq listtail thelist)
402 (unless *read-suppress*
403 (sb-impl::%reader-error
405 "Nothing appears before . in list.")))
406 ((sb-impl::whitespace[2]p nextchar)
407 (setq nextchar (sb-impl::flush-whitespace stream))))
409 ;; Return list containing last thing.
410 (car (sb-impl::read-after-dot stream nextchar)))
411 (return (cdr thelist)))
412 ;; Put back NEXTCHAR so that we can read it normally.
413 (t (unread-char nextchar stream)))))
414 ;; Next thing is not an isolated dot.
415 (let ((start (file-position stream))
416 (listobj (sb-impl::read-maybe-nothing stream firstchar))
417 (end (file-position stream)))
418 ;; allows the possibility that a comment was read
420 (unless (consp (car listobj))
421 (setf (car listobj) (gensym))
422 (push (list start end *read-suppress*)
423 (gethash (car listobj) source-map)))
424 (rplacd listtail listobj)
425 (setq listtail listobj))))))))
427 (defun suppress-sharp-dot (readtable)
428 (when (get-macro-character #\# readtable)
429 (let ((sharp-dot (get-dispatch-macro-character #\# #\. readtable)))
430 (set-dispatch-macro-character #\# #\. (lambda (&rest args)
431 (let ((*read-suppress* t))
432 (apply sharp-dot args))
435 (list (gensym "#."))))
438 (defun read-and-record-source-map (stream)
439 "Read the next object from STREAM.
440 Return the object together with a hashtable that maps
441 subexpressions of the object to stream positions."
442 (let* ((source-map (make-hash-table :test #'eq))
443 (*readtable* (make-source-recording-readtable *readtable* source-map))
444 (start (file-position stream))
446 (end (file-position stream)))
447 ;; ensure that at least FORM is in the source-map
448 (unless (gethash form source-map)
449 (push (list start end nil)
450 (gethash form source-map)))
451 (values form source-map)))
453 (defun read-source-form (n stream)
454 "Read the Nth toplevel form number with source location recording.
455 Return the form and the source-map."
456 (let ((*read-suppress* t))
459 (let ((*read-suppress* nil)
461 (read-and-record-source-map stream)))
463 (defun source-path-stream-position (path stream)
464 "Search the source-path PATH in STREAM and return its position."
465 (check-source-path path)
466 (destructuring-bind (tlf-number . path) path
467 (multiple-value-bind (form source-map) (read-source-form tlf-number stream)
468 (source-path-source-position (cons 0 path) form source-map))))
470 (defun check-source-path (path)
471 (unless (and (consp path)
472 (every #'integerp path))
473 (error "The source-path ~S is not valid." path)))
475 (defun source-path-string-position (path string)
476 (with-input-from-string (s string)
477 (source-path-stream-position path s)))
479 (defun source-path-file-position (path filename)
480 (with-open-file (file filename)
481 (source-path-stream-position path file)))
483 (defun source-path-source-position (path form source-map)
484 "Return the start position of PATH from FORM and SOURCE-MAP. All
485 subforms along the path are considered and the start and end position
486 of the deepest (i.e. smallest) possible form is returned."
487 ;; compute all subforms along path
488 (let ((forms (loop for n in path
490 for dummy = (when (eql n :progn)
492 for f = form then (nth n f)
493 unless (null (cdr m))
495 finally (return forms))))
496 ;; select the first subform present in source-map
497 (loop for form in (reverse forms)
498 for positions = (gethash form source-map)
499 until (and positions (null (cdr positions)))
500 finally (destructuring-bind ((start end suppress)) positions
501 (declare (ignore suppress))
502 (return (values (1- start) end))))))