compilerplugins/clang/virtualdown.py

   1 #!/usr/bin/python
   2
   3 import io
   4 import re
   5
   6 definitionSet = set()
   7 definitionToSourceLocationMap = dict()
   8 callSet = set()
   9
  10
  11 with io.open("workdir/loplugin.virtualdown.log", "rb", buffering=1024*1024) as txt:
  12     for line in txt:
  13         tokens = line.strip().split("\t")
  14         if tokens[0] == "definition:":
  15             fullMethodName = tokens[1]
  16             sourceLocation = tokens[2]
  17             definitionSet.add(fullMethodName)
  18             definitionToSourceLocationMap[fullMethodName] = sourceLocation
  19         elif tokens[0] == "call:":
  20             fullMethodName = tokens[1]
  21             callSet.add(fullMethodName)
  22         else:
  23             print( "unknown line: " + line)
  24
  25 unnecessaryVirtualSet = set()
  26
  27 for clazz in (definitionSet - callSet):
  28 #    if clazz.startswith("canvas::"): continue
  29 #    if clazz == "basegfx::unotools::UnoPolyPolygon::void-modifying()const": continue
  30     # ignore external code
  31     if definitionToSourceLocationMap[clazz].startswith("external/"):
  32         continue
  33
  34     unnecessaryVirtualSet.add((clazz,definitionToSourceLocationMap[clazz] ))
  35
  36
  37 # sort the results using a "natural order" so sequences like [item1,item2,item10] sort nicely
  38 def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
  39     return [int(text) if text.isdigit() else text.lower()
  40             for text in re.split(_nsre, s)]
  41 # sort by both the source-line and the datatype, so the output file ordering is stable
  42 # when we have multiple items on the same source line
  43 def v_sort_key(v):
  44     return natural_sort_key(v[1]) + [v[0]]
  45
  46 # sort results by name and line number
  47 tmp1list = sorted(unnecessaryVirtualSet, key=lambda v: v_sort_key(v))
  48
  49 with open("compilerplugins/clang/virtualdown.results", "wt") as f:
  50     for t in tmp1list:
  51         f.write( t[1] + "\n" )
  52         f.write( "    " + t[0] + "\n" )
  53     # add an empty line at the end to make it easier for the removevirtuals plugin to mmap() the output file
  54     f.write("\n")
  55