src/metrics/refinement_metrics.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2012 Jean Privat <jean@pryen.org>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 # Collect metrics about refinement usage
  18 module refinement_metrics
  19
  20 import model
  21 private import metrics_base
  22
  23 # Print refinement usage metrics
  24 fun compute_refinement_metrics(model: Model)
  25 do
  26         print "--- Metrics of refinement usage ---"
  27         var nbmod = model.mmodules.length
  28         print "Number of modules: {nbmod}"
  29
  30         print ""
  31
  32         var nbcla = model.mclasses.length
  33         var nbcladef = model.mclassdef_hierarchy.length
  34         print "Number of classes: {nbcla}"
  35
  36         # determine the distribution of:
  37         #  * class kinds (interface, abstract class, etc.)
  38         #  * refinex classes (vs. unrefined ones)
  39         var kinds = new Counter[MClassKind]
  40         var refined = 0
  41         for c in model.mclasses do
  42                 kinds.inc(c.kind)
  43                 if c.mclassdefs.length > 1 then
  44                         refined += 1
  45                 end
  46         end
  47         for k in kinds.sort do
  48                 var v = kinds[k]
  49                 print "  Number of {k} kind: {v} ({div(v*100,nbcla)}%)"
  50         end
  51
  52
  53         print ""
  54
  55         print "Number of class definitions: {nbcladef}"
  56         print "Number of refined classes: {refined} ({div(refined*100,nbcla)}%)"
  57         print "Average number of class refinments by classes: {div(nbcladef-nbcla,nbcla)}"
  58         print "Average number of class refinments by refined classes: {div(nbcladef-nbcla,refined)}"
  59
  60         print ""
  61
  62         var nbprop = model.mproperties.length
  63         var nbpropdef = 0
  64         var redefined = 0
  65         print "Number of properties: {model.mproperties.length}"
  66         var pkinds = new Counter[String]
  67         for p in model.mproperties do
  68                 nbpropdef += p.mpropdefs.length
  69                 if p.mpropdefs.length > 1 then
  70                         redefined += 1
  71                 end
  72                 pkinds.inc(p.class_name)
  73         end
  74         for k in pkinds.sort do
  75                 var v = pkinds[k]
  76                 print "  Number of {k}: {v} ({div(v*100,nbprop)}%)"
  77         end
  78
  79         print ""
  80
  81         print "Number of property definitions: {nbpropdef}"
  82         print "Number of redefined properties: {redefined} ({div(redefined*100,nbprop)}%)"
  83         print "Average number of property redefinitions by property: {div(nbpropdef-nbprop,nbprop)}"
  84         print "Average number of property redefinitions by redefined property: {div(nbpropdef-nbprop,redefined)}"
  85 end