compilerplugins/clang/unnecessaryvirtual.py

   1 #!/usr/bin/python3
   2
   3 import io
   4 import re
   5
   6 definitionSet = set()
   7 definitionToSourceLocationMap = dict()
   8 overridingSet = set()
   9 nonEmptySet = set()
  10
  11
  12 with io.open("workdir/loplugin.unnecessaryvirtual.log", "r", buffering=1024*1024) as txt:
  13     for line in txt:
  14         tokens = line.strip().split("\t")
  15         if tokens[0] == "definition:":
  16             fullMethodName = tokens[1]
  17             sourceLocation = tokens[2]
  18             definitionSet.add(fullMethodName)
  19             definitionToSourceLocationMap[fullMethodName] = sourceLocation
  20         elif tokens[0] == "overriding:":
  21             fullMethodName = tokens[1]
  22             overridingSet.add(fullMethodName)
  23         elif tokens[0] == "nonempty:":
  24             fullMethodName = tokens[1]
  25             nonEmptySet.add(fullMethodName)
  26         else:
  27             print( "unknown line: " + line)
  28
  29 unnecessaryVirtualSet = set()
  30
  31 for clazz in (definitionSet - overridingSet):
  32     # windows-specific stuff
  33     if clazz.startswith("canvas::"): continue
  34     if clazz.startswith("psp::PrinterInfoManager"): continue
  35     if clazz.startswith("DdeTopic::"): continue
  36     if clazz == "basegfx::unotools::UnoPolyPolygon::void-modifying()const": continue
  37     if clazz == "SalLayout::_Bool-IsKashidaPosValid(int,)const": continue
  38     if clazz == "SalLayout::void-DisableGlyphInjection(_Bool,)": continue
  39     # Linux-TDF specific
  40     if clazz == "X11SalFrame::void-updateGraphics(_Bool,)": continue
  41     # OSX specific
  42     if clazz == "SalFrame::void-SetRepresentedURL(const class rtl::OUString &,)": continue
  43     if clazz == "SalMenu::_Bool-AddMenuBarButton(const struct SalMenuButtonItem &,)": continue
  44     if clazz == "SalMenu::class Rectangle-GetMenuBarButtonRectPixel(sal_uInt16,class SalFrame *,)": continue
  45     if clazz == "SalMenu::void-RemoveMenuBarButton(sal_uInt16,)": continue
  46     if clazz == "SalLayout::_Bool-DrawTextSpecial(class SalGraphics &,sal_uInt32,)const": continue
  47     # GTK < 3
  48     if clazz == "GtkSalDisplay::int-CaptureMouse(class SalFrame *,)": continue
  49     # some test magic
  50     if clazz.startswith("apitest::"): continue
  51
  52     loc = definitionToSourceLocationMap[clazz]
  53
  54     # ignore external code
  55     if loc.startswith("external/"): continue
  56     if loc.startswith("workdir/"): continue
  57     if loc.startswith("64-linux-gnu/"): continue
  58     # there is a bunch of Windows specific code that we don't see
  59     if loc.startswith("include/canvas/"): continue
  60     # not sure what the problem is here
  61     if loc.startswith("include/test/"): continue
  62
  63     unnecessaryVirtualSet.add( (clazz,loc) )
  64
  65
  66 deadSet = set()
  67
  68 for clazz in (definitionSet - nonEmptySet):
  69
  70     # ignore destructors
  71     if "::~" in clazz: continue
  72
  73     loc = definitionToSourceLocationMap[clazz]
  74
  75     # ignore external code
  76     if loc.startswith("external/"): continue
  77     if loc.startswith("workdir/"): continue
  78     if loc.startswith("64-linux-gnu/"): continue
  79
  80     deadSet.add( (clazz,loc) )
  81
  82
  83 # sort the results using a "natural order" so sequences like [item1,item2,item10] sort nicely
  84 def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
  85     return [int(text) if text.isdigit() else text.lower()
  86             for text in re.split(_nsre, s)]
  87 # sort by both the source-line and the datatype, so the output file ordering is stable
  88 # when we have multiple items on the same source line
  89 def v_sort_key(v):
  90     return natural_sort_key(v[1]) + [v[0]]
  91
  92 # sort results by name and line number
  93 tmp1list = sorted(unnecessaryVirtualSet, key=lambda v: v_sort_key(v))
  94 tmp2list = sorted(deadSet, key=lambda v: v_sort_key(v))
  95
  96 with open("compilerplugins/clang/unnecessaryvirtual.results", "wt") as f:
  97     for t in tmp1list:
  98         f.write( t[1] + "\n" )
  99         f.write( "    " + t[0] + "\n" )
 100     # add an empty line at the end to make it easier for the removevirtuals plugin to mmap() the output file
 101     f.write("\n")
 102
 103 with open("compilerplugins/clang/unnecessaryvirtual-dead.results", "wt") as f:
 104     for t in tmp2list:
 105         f.write( t[1] + "\n" )
 106         f.write( "    " + t[0] + "\n" )
 107