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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
;;
(include "codescanlib.scm")
(define (show-danglers)
(let* ((all-scm-files (glob "*.scm"))
(xref (get-xref all-scm-files))
(dangling-procs
(map car (filter (lambda (x) (equal? 1 (length x))) xref))))
(for-each print dangling-procs) ;; our product.
))
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
;;
;; gotta compile with csc, doesn't work with csi -s for whatever reason
(use srfi-69)
(use matchable)
(use utils)
(use ports)
(use extras)
(use srfi-1)
(use posix)
(use srfi-12)
;; turn scheme file to a list of sexps, sexps of interest will be in the form of (define (<procname> <args>) <body> )
(define (load-scm-file scm-file)
;;(print "load "scm-file)
(handle-exceptions
exn
'()
(with-input-from-string
(conc "("
(with-input-from-file scm-file read-all)
")" )
read)))
;; extract a list of procname, filename, args and body of procedures defined in filename, input from load-scm-file
;; -- be advised:
;; * this may be fooled by macros, since this code does not take them into account.
;; * this code does only checks for form (define (<procname> ... ) <body>)
;; so it excludes from reckoning
;; - generated functions, as in things like foo-set! from defstructs,
;; - define-inline, (
;; - define procname (lambda ..
;; - etc...
(define (get-toplevel-procs+file+args+body filename)
(let* ((scm-tree (load-scm-file filename))
(procs
(filter identity
(map
(match-lambda
[('define ('uses args ...) body ...) #f] ;; filter out (define (uses ...
[('define ('unit args ...) body ...) #f] ;; filter out (define (unit ...
[('define ('prefix args ...) body ...) #f] ;; filter out (define (prefix ...
[('define (defname args ...) body ...) ;; match (define (procname <args>) <body>)
(if (atom? defname) ;; filter out things we dont understand (procname is a list, what??)
(list defname filename args body)
#f)]
[else #f] ) scm-tree))))
procs))
;; given a sexp, return a flat list of atoms in that sexp
(define (get-atoms-in-body body)
(cond
((null? body) '())
((atom? body) (list body))
(else
(apply append (map get-atoms-in-body body)))))
;; given a file, return a list of procname, file, list of atoms in said procname
(define (get-procs+file+atoms file)
(let* ((toplevel-proc-items (get-toplevel-procs+file+args+body file))
(res
(map
(lambda (item)
(let* ((proc (car item))
(file (cadr item))
(args (caddr item))
(body (cadddr item))
(atoms (append (get-atoms-in-body args) (get-atoms-in-body body))))
(list proc file atoms)))
toplevel-proc-items)))
res))
;; uniquify a list of atoms
(define (unique-atoms lst)
(let loop ((lst (flatten lst)) (res '()))
(if (null? lst)
(reverse res)
(let ((c (car lst)))
(loop (cdr lst) (if (member c res) res (cons c res)))))))
;; given a list of procname, filename, list of procs called from procname, cross reference and reverse
;; returning alist mapping procname to procname that calls said procname
(define (get-callers-alist all-procs+file+calls)
(let* ((all-procs (map car all-procs+file+calls))
(caller-ht (make-hash-table)))
;; let's cross reference with a hash table
(for-each (lambda (proc) (hash-table-set! caller-ht proc '())) all-procs)
(for-each (lambda (item)
(let* ((proc (car item))
(file (cadr item))
(calls (caddr item)))
(for-each (lambda (callee)
(hash-table-set! caller-ht callee
(cons proc
(hash-table-ref caller-ht callee))))
calls)))
all-procs+file+calls)
(map (lambda (x)
(let ((k (car x))
(r (unique-atoms (cdr x))))
(cons k r)))
(hash-table->alist caller-ht))))
;; create a handy cross-reference of callees to callers in the form of an alist.
(define (get-xref all-scm-files)
(let* ((all-procs+file+atoms
(apply append (map get-procs+file+atoms all-scm-files)))
(all-procs (map car all-procs+file+atoms))
(all-procs+file+calls ; proc calls things in calls list
(map (lambda (item)
(let* ((proc (car item))
(file (cadr item))
(atoms (caddr item))
(calls
(filter identity
(map
(lambda (x)
(if (and ;; (not (equal? x proc)) ;; uncomment to prevent listing self
(member x all-procs))
x
#f))
atoms))))
(list proc file calls)))
all-procs+file+atoms))
(callers (get-callers-alist all-procs+file+calls)))
callers))
(define (get-danglers)
(let* ((all-scm-files (glob "*.scm"))
(xref (get-xref all-scm-files))
(dangling-procs
(map car (filter (lambda (x) (equal? 1 (length x))) xref))))
dangling-procs))
(define (read-ignore-file fname)
(let ((ht (make-hash-table)))
(if (file-exists? fname)
(for-each
(lambda (x)
(hash-table-set! ht x #t))
(with-input-from-file fname
read-lines)))
ht))
(define (show-danglers)
(let ((ignores (read-ignore-file "danglers-to-ignore.txt"))
(danglers (map get-stats (get-danglers))))
;; (print "ignores: " (hash-table->alist ignores))
(for-each (lambda (dangler)
(let* ((fnname (conc (cadr dangler))))
;; (print "fnname="fnname" member: "(member fnname ignore-list))
(if (not (hash-table-exists? ignores fnname))
(apply print (intersperse dangler "\t"))
#;(print "skipping "fnname))))
(sort danglers (lambda (a b)(< (car a)(car b)))))))
;; (for-each print dangling-procs) ;; our product.
(define (get-stats fn)
(let* ((data (with-input-from-pipe (conc "grep '"fn"' *.scm") read-lines))
(files (delete-duplicates
(map (lambda (entry)
(car (string-split entry ":")))
data))))
(list (length data) fn files)))
(show-danglers)
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