code.delx.au - gnu-emacs/blob - lisp/cedet/semantic/chart.el

   1 ;;; semantic/chart.el --- Utilities for use with semantic tag tables
   2
   3 ;;; Copyright (C) 1999, 2000, 2001, 2003, 2005, 2008, 2009
   4 ;;; Free Software Foundation, Inc.
   5
   6 ;; Author: Eric M. Ludlam <zappo@gnu.org>
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24 ;;
  25 ;; A set of simple functions for charting details about a file based on
  26 ;; the output of the semantic parser.
  27 ;;
  28
  29 (require 'chart)
  30 (require 'semantic)
  31 (require 'semantic/db-mode)
  32 (require 'semantic/db-typecache)
  33 (require 'semantic/scope)
  34
  35 ;;; Code:
  36
  37 (defun semantic-chart-tags-by-class (&optional tagtable)
  38   "Create a bar chart representing the number of tags for a given tag class.
  39 Each bar represents how many toplevel tags in TAGTABLE
  40 exist with a given class.  See `semantic-symbol->name-assoc-list'
  41 for tokens which will be charted.
  42 TAGTABLE is passedto `semantic-something-to-tag-table'."
  43   (interactive)
  44   (let* ((stream (semantic-something-to-tag-table
  45                   (or tagtable (current-buffer))))
  46          (names (mapcar 'cdr semantic-symbol->name-assoc-list))
  47          (nums (mapcar
  48                 (lambda (symname)
  49                   (length
  50                    (semantic-brute-find-tag-by-class (car symname)
  51                                                      stream)
  52                    ))
  53                 semantic-symbol->name-assoc-list)))
  54     (chart-bar-quickie 'vertical
  55                        "Semantic Toplevel Tag Volume"
  56                        names "Tag Class"
  57                        nums "Volume")
  58     ))
  59
  60 (defun semantic-chart-database-size (&optional tagtable)
  61   "Create a bar chart representing the size of each file in semanticdb.
  62 Each bar represents how many toplevel tags in TAGTABLE
  63 exist in each database entry.
  64 TAGTABLE is passed to `semantic-something-to-tag-table'."
  65   (interactive)
  66   (if (or (not (fboundp 'semanticdb-minor-mode-p))
  67           (not (semanticdb-minor-mode-p)))
  68       (error "Semanticdb is not enabled"))
  69   (let* ((db semanticdb-current-database)
  70          (dbt (semanticdb-get-database-tables db))
  71          (names (mapcar 'car
  72                         (object-assoc-list
  73                          'file
  74                          dbt)))
  75          (numnuts (mapcar (lambda (dba)
  76                             (prog1
  77                                 (cons
  78                                  (if (slot-boundp dba 'tags)
  79                                      (length (oref dba tags))
  80                                    1)
  81                                  (car names))
  82                               (setq names (cdr names))))
  83                           dbt))
  84          (nums nil)
  85          (fh (/ (- (frame-height) 7) 4)))
  86     (setq numnuts (sort numnuts (lambda (a b) (> (car a) (car b)))))
  87     (setq names (mapcar 'cdr numnuts)
  88           nums (mapcar 'car numnuts))
  89     (if (> (length names) fh)
  90         (progn
  91           (setcdr (nthcdr fh names) nil)
  92           (setcdr (nthcdr fh nums) nil)))
  93     (chart-bar-quickie 'horizontal
  94                        "Semantic DB Toplevel Tag Volume"
  95                        names "File"
  96                        nums "Volume")
  97     ))
  98
  99 (defun semantic-chart-token-complexity (tok)
 100   "Calculate the `complexity' of token TOK."
 101   (count-lines
 102    (semantic-tag-end tok)
 103    (semantic-tag-start tok)))
 104
 105 (defun semantic-chart-tag-complexity
 106   (&optional class tagtable)
 107   "Create a bar chart representing the complexity of some tags.
 108 Complexity is calculated for tags of CLASS.  Each bar represents
 109 the complexity of some tag in TAGTABLE.  Only the most complex
 110 items are charted.  TAGTABLE is passedto
 111 `semantic-something-to-tag-table'."
 112   (interactive)
 113   (let* ((sym (if (not class) 'function))
 114          (stream
 115           (semantic-find-tags-by-class
 116            sym (semantic-something-to-tag-table (or tagtable
 117                                                     (current-buffer)))
 118            ))
 119          (name (cond ((semantic-tag-with-position-p (car stream))
 120                       (buffer-name (semantic-tag-buffer (car stream))))
 121                      (t "")))
 122          (cplx (mapcar (lambda (tok)
 123                          (cons tok (semantic-chart-token-complexity tok)))
 124                        stream))
 125          (namelabel (cdr (assoc 'function semantic-symbol->name-assoc-list)))
 126          (names nil)
 127          (nums nil))
 128     (setq cplx (sort cplx (lambda (a b) (> (cdr a) (cdr b)))))
 129     (while (and cplx (<= (length names) (/ (- (frame-height) 7) 4)))
 130       (setq names (cons (semantic-tag-name (car (car cplx)))
 131                         names)
 132             nums (cons (cdr (car cplx)) nums)
 133             cplx (cdr cplx)))
 134 ;; ;;     (setq names (mapcar (lambda (str)
 135 ;; ;;                     (substring str (- (length str) 10)))
 136 ;; ;;                   names))
 137     (chart-bar-quickie 'horizontal
 138                        (format "%s Complexity in %s"
 139                                (capitalize (symbol-name sym))
 140                                name)
 141                        names namelabel
 142                        nums "Complexity (Lines of code)")
 143     ))
 144
 145 (defun semantic-chart-analyzer ()
 146   "Chart the extent of the context analysis."
 147   (interactive)
 148   (let* ((p (semanticdb-find-translate-path nil nil))
 149          (plen (length p))
 150          (tab semanticdb-current-table)
 151          (tc (semanticdb-get-typecache tab))
 152          (tclen (+ (length (oref tc filestream))
 153                    (length (oref tc includestream))))
 154          (scope (semantic-calculate-scope))
 155          (fslen (length (oref scope fullscope)))
 156          (lvarlen (length (oref scope localvar)))
 157          )
 158     (chart-bar-quickie 'vertical
 159                        (format "Analyzer Overhead in %s" (buffer-name))
 160                        '("includes" "typecache" "scopelen" "localvar")
 161                        "Overhead Entries"
 162                        (list plen tclen fslen lvarlen)
 163                        "Number of tags")
 164     ))
 165
 166
 167
 168 (provide 'semantic/chart)
 169
 170 ;;; semantic/chart.el ends here