compilerplugins/clang/unnecessaryvirtual.py

   1 #!/usr/bin/python2
   2
   3 import io
   4 import re
   5 import sys
   6
   7 definitionSet = set()
   8 definitionToSourceLocationMap = dict()
   9 overridingSet = set()
  10 nonEmptySet = set()
  11
  12
  13 with io.open("workdir/loplugin.unnecessaryvirtual.log", "rb", buffering=1024*1024) as txt:
  14     for line in txt:
  15         tokens = line.strip().split("\t")
  16         if tokens[0] == "definition:":
  17             fullMethodName = tokens[1]
  18             sourceLocation = tokens[2]
  19             definitionSet.add(fullMethodName)
  20             definitionToSourceLocationMap[fullMethodName] = sourceLocation
  21         elif tokens[0] == "overriding:":
  22             fullMethodName = tokens[1]
  23             overridingSet.add(fullMethodName)
  24         elif tokens[0] == "nonempty:":
  25             fullMethodName = tokens[1]
  26             nonEmptySet.add(fullMethodName)
  27         else:
  28             print( "unknown line: " + line)
  29
  30 unnecessaryVirtualSet = set()
  31
  32 for clazz in (definitionSet - overridingSet):
  33     # windows-specific stuff
  34     if clazz.startswith("canvas::"): continue
  35     if clazz.startswith("psp::PrinterInfoManager"): continue
  36     if clazz.startswith("DdeTopic::"): continue
  37     if clazz == "basegfx::unotools::UnoPolyPolygon::void-modifying()const": continue
  38     if clazz == "SalLayout::_Bool-IsKashidaPosValid(int,)const": continue
  39     if clazz == "SalLayout::void-DisableGlyphInjection(_Bool,)": continue
  40     # Linux-TDF specific
  41     if clazz == "X11SalFrame::void-updateGraphics(_Bool,)": continue
  42     # OSX specific
  43     if clazz == "SalFrame::void-SetRepresentedURL(const class rtl::OUString &,)": continue
  44     if clazz == "SalMenu::_Bool-AddMenuBarButton(const struct SalMenuButtonItem &,)": continue
  45     if clazz == "SalMenu::class Rectangle-GetMenuBarButtonRectPixel(sal_uInt16,class SalFrame *,)": continue
  46     if clazz == "SalMenu::void-RemoveMenuBarButton(sal_uInt16,)": continue
  47     if clazz == "SalLayout::_Bool-DrawTextSpecial(class SalGraphics &,sal_uInt32,)const": continue
  48     # GTK < 3
  49     if clazz == "GtkSalDisplay::int-CaptureMouse(class SalFrame *,)": continue
  50     # some test magic
  51     if clazz.startswith("apitest::"): continue
  52
  53     loc = definitionToSourceLocationMap[clazz]
  54
  55     # ignore external code
  56     if loc.startswith("external/"): continue
  57     # there is a bunch of Windows specific code that we don't see
  58     if loc.startswith("include/canvas/"): continue
  59     # not sure what the problem is here
  60     if loc.startswith("include/test/"): continue
  61
  62     unnecessaryVirtualSet.add( (clazz,loc) )
  63
  64
  65 deadSet = set()
  66
  67 for clazz in (definitionSet - nonEmptySet):
  68
  69     # ignore destructors
  70     if "::~" in clazz: continue
  71
  72     loc = definitionToSourceLocationMap[clazz]
  73
  74     # ignore external code
  75     if loc.startswith("external/"): continue
  76
  77     deadSet.add( (clazz,loc) )
  78
  79
  80 # sort the results using a "natural order" so sequences like [item1,item2,item10] sort nicely
  81 def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
  82     return [int(text) if text.isdigit() else text.lower()
  83             for text in re.split(_nsre, s)]
  84
  85 # sort results by name and line number
  86 tmp1list = sorted(unnecessaryVirtualSet, key=lambda v: natural_sort_key(v[1]))
  87 tmp2list = sorted(deadSet, key=lambda v: natural_sort_key(v[1]))
  88
  89 with open("compilerplugins/clang/unnecessaryvirtual.results", "wt") as f:
  90     for t in tmp1list:
  91         f.write( t[1] + "\n" )
  92         f.write( "    " + t[0] + "\n" )
  93     # add an empty line at the end to make it easier for the removevirtuals plugin to mmap() the output file
  94     f.write("\n")
  95
  96 with open("compilerplugins/clang/unnecessaryvirtual-dead.results", "wt") as f:
  97     for t in tmp2list:
  98         f.write( t[1] + "\n" )
  99         f.write( "    " + t[0] + "\n" )
 100