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)
117 do (setf (values form map)
119 (read-and-record-source-map stream)
123 (warn "Error when recording source map for toplevel form ~A:~% ~A" i error)
125 (make-hash-table)))))
128 collect (cons form map)))))
129 (mapcar (lambda (map)
130 (maphash (lambda (k locations)
132 (dolist (location locations)
133 (destructuring-bind (start end suppress) location
135 (fill-with-state source states 15 (1- start)
139 ;; Go through all records, find the matching source in the file,
140 ;; and update STATES to contain the state of the record in the
141 ;; indexes matching the source location. Process the longest paths
142 ;; first, so that the state of each index will reflect the state
143 ;; of the innermost containing form. Processes branch-records
144 ;; before expr-records of the same length, for the same reason.
145 (let ((counts (list :branch (make-instance 'sample-count :mode :branch)
146 :expression (make-instance 'sample-count
147 :mode :expression))))
148 (let ((records (append branch-records expr-records)))
149 (dolist (record (stable-sort records #'>
150 :key (lambda (e) (length (second e)))))
151 (destructuring-bind (mode path state) record
152 (let* ((path (reverse path))
154 (source-form (car (nth tlf maps)))
155 (source-map (cdr (nth tlf maps)))
156 (source-path (cdr path)))
157 (cond ((eql mode :branch)
158 (let ((count (getf counts :branch)))
159 ;; For branches mode each record accounts for two paths
165 (incf (all-of count) 2)))
167 (let ((count (getf counts :expression)))
169 (incf (ok-of count)))
170 (incf (all-of count)))))
173 (multiple-value-bind (start end)
174 (source-path-source-position (cons 0 source-path)
177 (fill-with-state source states state start end))
179 (warn "Error finding source location for source path ~A in file ~A~%" source-path file)))
180 (warn "Unable to find a source map for toplevel form ~A in file ~A~%" tlf file))))))
181 (print-report html-stream file counts states source)
182 (format html-stream "</body></html>")
183 (list (getf counts :expression)
184 (getf counts :branch)))))
186 (defun fill-with-state (source states state start end)
187 (let* ((pos (position #\Newline source
190 (start-column (if pos
194 (loop for i from start below end
195 for col from start-column
196 for char = (aref source i)
197 do (cond ((eql char #\Newline)
199 ((not (eql char #\Space))
200 (setf end-column (max end-column col)))))
201 (loop for i from start below end
202 for col from start-column
203 for char = (aref source i)
204 do (if (eql char #\Newline)
206 (when (and (zerop (aref states i))
207 #+nil (<= col end-column)
208 (>= col start-column))
209 (setf (aref states i) state))))))
211 ;;; Convert tabs to spaces
212 (defun detabify (source)
213 (with-output-to-string (stream)
214 (loop for char across source
217 do (if (eql char #\Tab)
218 (loop repeat (- 8 (mod col 8))
219 do (write-char #\Space stream)
223 (when (eql char #\Newline)
224 ;; Filter out empty last line
225 (when (eql i (1- (length source)))
228 (write-char char stream))))))
230 (defvar *counts* nil)
232 (defun print-report (html-stream file counts states source)
233 ;; Just used for testing
234 (setf *counts* counts)
235 (let ((*print-case* :downcase))
237 "<h3>Coverage report: ~a <br />~%</h3>~%" file)
238 (when (zerop (all-of (getf counts :expression)))
239 (format html-stream "<b>File has no instrumented forms</b>")
240 (return-from print-report))
241 (format html-stream "<table class='summary'><tr class='head-row'>~{<td width='80px'>~a</td>~}"
242 (list "Kind" "Covered" "All" "%"))
243 (dolist (mode '(:expression :branch))
244 (let ((count (getf counts mode)))
245 (format html-stream "<tr class='~:[odd~;even~]'><td>~A</td><td>~a</td><td>~a</td><td>~5,1F</td></tr>~%"
251 (format html-stream "</table>"))
252 (format html-stream "<div class='key'><b>Key</b><br />~%")
253 (format html-stream "<div class='state-0'>Not instrumented</div>")
254 (format html-stream "<div class='state-15'>Conditionalized out</div>")
255 (format html-stream "<div class='state-1'>Executed</div>")
256 (format html-stream "<div class='state-2'>Not executed</div>")
257 (format html-stream "<div> </div>")
258 (format html-stream "<div class='state-5'>Both branches taken</div>")
259 (format html-stream "<div class='state-6'>One branch taken</div>")
260 (format html-stream "<div class='state-10''>Neither branch taken</div>")
261 (format html-stream "</div>")
262 (format html-stream "<nobr><div><code>~%")
264 (format html-stream "</code></div></nobr>~%<nobr><div class='source'><div class='line-number'><code>~A</code></div><code> " line)
266 (loop for last-state = nil then state
269 for char across source
270 for state across states
271 do (unless (eq state last-state)
273 (format html-stream "</span>"))
274 (format html-stream "<span class='state-~a'>" state))
279 (format html-stream "</span>")
282 (format html-stream " "))
286 (if (alphanumericp char)
287 (write-char char html-stream)
288 (format html-stream "&#~A;" (char-code char))))))
289 (format html-stream "</code></div>")))
291 (defun write-styles (html-stream)
292 (format html-stream "<style type='text/css'>
293 *.state-0 { background-color: #eeeeee }
294 *.state-1 { background-color: #aaffaa }
295 *.state-5 { background-color: #44dd44 }
296 *.state-2 { background-color: #ffaaaa }
297 *.state-10 { background-color: #ee6666 }
298 *.state-15 { color: #aaaaaa; background-color: #eeeeee }
299 *.state-9,*.state-6 { background-color: #ffffaa }
300 div.key { margin: 20px; width: 200px }
301 div.source { width: 88ex; background-color: #eeeeee; padding-left: 5px;
302 /* border-style: solid none none none; border-width: 1px;
303 border-color: #dddddd */ }
305 *.line-number { color: #666666; float: left; width: 6ex; text-align: right; margin-right: 1ex; }
307 table.summary tr.head-row { background-color: #aaaaff }
308 table.summary tr td.text-cell { text-align: left }
309 table.summary tr td.main-head { text-align: center }
310 table.summary tr td { text-align: right }
311 table.summary tr.even { background-color: #eeeeff }
312 table.summary tr.subheading { background-color: #aaaaff}
313 table.summary tr.subheading td { text-align: left; font-weight: bold; padding-left: 5ex; }
316 (defun convert-records (records mode)
319 (loop for record in records
320 unless (member (caar record) '(:then :else))
327 (let ((hash (make-hash-table :test 'equal)))
328 (dolist (record records)
329 (let ((path (car record)))
330 (when (member (car path) '(:then :else))
331 (setf (gethash (cdr path) hash)
332 (logior (gethash (cdr path) hash 0)
333 (ash (if (cdr record)
336 (if (eql (car path) :then)
340 (maphash (lambda (k v)
341 (push (list mode k v) list))
345 ;;;; A mutant version of swank-source-path-parser from Swank/Slime.
347 (defun read-file (filename external-format)
348 "Return the entire contents of FILENAME as a string."
349 (with-open-file (s filename :direction :input
350 :external-format external-format)
351 (let ((string (make-string (file-length s))))
352 (read-sequence string s)
355 (defun make-source-recorder (fn source-map)
356 "Return a macro character function that does the same as FN, but
357 additionally stores the result together with the stream positions
358 before and after of calling FN in the hashtable SOURCE-MAP."
359 (declare (type function fn))
360 (lambda (stream char)
361 (declare (optimize debug safety))
362 (let ((start (file-position stream))
363 (values (multiple-value-list (funcall fn stream char)))
364 (end (file-position stream)))
365 (unless (null values)
366 (push (list start end *read-suppress*)
367 (gethash (car values) source-map)))
368 (values-list values))))
370 (defun make-source-recording-readtable (readtable source-map)
371 "Return a source position recording copy of READTABLE.
372 The source locations are stored in SOURCE-MAP."
373 (let* ((tab (copy-readtable readtable))
376 (let ((char (code-char code)))
377 (multiple-value-bind (fn term) (get-macro-character char tab)
379 (set-macro-character char (make-source-recorder fn source-map)
381 (suppress-sharp-dot tab)
382 (set-macro-character #\(
383 (make-source-recorder
384 (make-recording-read-list source-map)
388 ;;; Ripped from SB-IMPL, since location recording on a cons-cell level
389 ;;; can't be done just by simple read-table tricks.
390 (defun make-recording-read-list (source-map)
391 (lambda (stream ignore)
393 (when (eql *package* (find-package :keyword))
395 (sb-impl::read-list stream ignore)))
396 (let* ((thelist (list nil))
398 (do ((firstchar (sb-impl::flush-whitespace stream)
399 (sb-impl::flush-whitespace stream)))
400 ((char= firstchar #\) ) (cdr thelist))
401 (when (char= firstchar #\.)
402 (let ((nextchar (read-char stream t)))
403 (cond ((sb-impl::token-delimiterp nextchar)
404 (cond ((eq listtail thelist)
405 (unless *read-suppress*
406 (sb-impl::%reader-error
408 "Nothing appears before . in list.")))
409 ((sb-impl::whitespace[2]p nextchar)
410 (setq nextchar (sb-impl::flush-whitespace stream))))
412 ;; Return list containing last thing.
413 (car (sb-impl::read-after-dot stream nextchar)))
414 (return (cdr thelist)))
415 ;; Put back NEXTCHAR so that we can read it normally.
416 (t (unread-char nextchar stream)))))
417 ;; Next thing is not an isolated dot.
418 (let ((start (file-position stream))
419 (listobj (sb-impl::read-maybe-nothing stream firstchar))
420 (end (file-position stream)))
421 ;; allows the possibility that a comment was read
423 (unless (consp (car listobj))
424 (setf (car listobj) (gensym))
425 (push (list start end *read-suppress*)
426 (gethash (car listobj) source-map)))
427 (rplacd listtail listobj)
428 (setq listtail listobj))))))))
430 (defun suppress-sharp-dot (readtable)
431 (when (get-macro-character #\# readtable)
432 (let ((sharp-dot (get-dispatch-macro-character #\# #\. readtable)))
433 (set-dispatch-macro-character #\# #\.
435 (let ((*read-suppress* t))
436 (apply sharp-dot args)))
439 (defun read-and-record-source-map (stream)
440 "Read the next object from STREAM.
441 Return the object together with a hashtable that maps
442 subexpressions of the object to stream positions."
443 (let* ((source-map (make-hash-table :test #'eq))
444 (*readtable* (make-source-recording-readtable *readtable* source-map))
445 (start (file-position stream))
447 (end (file-position stream)))
448 ;; ensure that at least FORM is in the source-map
449 (unless (gethash form source-map)
450 (push (list start end nil)
451 (gethash form source-map)))
452 (values form source-map)))
454 (defun read-source-form (n stream)
455 "Read the Nth toplevel form number with source location recording.
456 Return the form and the source-map."
457 (let ((*read-suppress* t))
460 (let ((*read-suppress* nil)
462 (read-and-record-source-map stream)))
464 (defun source-path-stream-position (path stream)
465 "Search the source-path PATH in STREAM and return its position."
466 (check-source-path path)
467 (destructuring-bind (tlf-number . path) path
468 (multiple-value-bind (form source-map) (read-source-form tlf-number stream)
469 (source-path-source-position (cons 0 path) form source-map))))
471 (defun check-source-path (path)
472 (unless (and (consp path)
473 (every #'integerp path))
474 (error "The source-path ~S is not valid." path)))
476 (defun source-path-string-position (path string)
477 (with-input-from-string (s string)
478 (source-path-stream-position path s)))
480 (defun source-path-file-position (path filename)
481 (with-open-file (file filename)
482 (source-path-stream-position path file)))
484 (defun source-path-source-position (path form source-map)
485 "Return the start position of PATH from FORM and SOURCE-MAP. All
486 subforms along the path are considered and the start and end position
487 of the deepest (i.e. smallest) possible form is returned."
488 ;; compute all subforms along path
489 (let ((forms (loop for n in path
491 for dummy = (when (eql n :progn)
493 for f = form then (nth n f)
494 unless (null (cdr m))
496 finally (return forms))))
497 ;; select the first subform present in source-map
498 (loop for form in (reverse forms)
499 for positions = (gethash form source-map)
500 until (and positions (null (cdr positions)))
501 finally (destructuring-bind ((start end suppress)) positions
502 (declare (ignore suppress))
503 (return (values (1- start) end))))))