compilerplugins/clang/mergeclasses.py

   1 #!/usr/bin/python
   2
   3 import sys
   4
   5 instantiatedSet = set()
   6 definitionSet = set()
   7 parentChildDict = {}
   8 definitionToFileDict = {}
   9
  10 with open("workdir/loplugin.mergeclasses.log") as txt:
  11     for line in txt:
  12         tokens = line.strip().split("\t")
  13
  14         if len(tokens) == 1:
  15             pass
  16
  17         elif tokens[0] == "instantiated:":
  18             clazzName = tokens[1]
  19             if (clazzName.startswith("const ")):
  20                 clazzName = clazzName[6:]
  21             if (clazzName.startswith("class ")):
  22                 clazzName = clazzName[6:]
  23             if (clazzName.startswith("::")):
  24                 clazzName = clazzName[2:]
  25             instantiatedSet.add(clazzName)
  26
  27         elif tokens[0] == "definition:":
  28             clazzName = tokens[1]
  29             # the 1.. is so we skip the leading /
  30             fileName  = tokens[2][1:]
  31             definitionSet.add(clazzName)
  32             definitionToFileDict[clazzName] = fileName
  33
  34         elif tokens[0] == "has-subclass:":
  35             child  = tokens[1]
  36             parent = tokens[2]
  37             if (parent.startswith("class ")):
  38                 parent = parent[6:]
  39             elif (parent.startswith("struct ")):
  40                 parent = parent[7:]
  41             if (child.startswith("class ")):
  42                 child = child[6:]
  43             elif (child.startswith("struct ")):
  44                 child = child[7:]
  45             if (parent not in parentChildDict):
  46                 parentChildDict[parent] = set()
  47             parentChildDict[parent].add(child)
  48
  49 def extractModuleName(clazz):
  50     filename = definitionToFileDict[clazz]
  51     if filename.startswith("include/"):
  52         filename = filename[8:]
  53     idx = filename.find("/")
  54     return filename[:idx]
  55
  56 with open("compilerplugins/clang/mergeclasses.results", "wt") as f:
  57     # loop over defined, but not instantiated classes
  58     for clazz in sorted(definitionSet - instantiatedSet):
  59         if clazz == "svl::IUndoManager": print parentChildDict[clazz]
  60         # ignore classes without any children, and classes with more than one child
  61         if (clazz not in parentChildDict) or (len(parentChildDict[clazz]) != 1):
  62             continue
  63         # exclude some common false positives
  64         a = ['Dialog', 'Dlg', 'com::sun', 'Base']
  65         if any(x in clazz for x in a):
  66             continue
  67         # ignore base class that contain the word "mutex", they are normally there to
  68         # help with the WeakComponentImpl template magic
  69         if ("mutex" in clazz) or ("Mutex" in clazz):
  70             continue
  71         otherclazz = next(iter(parentChildDict[clazz]))
  72         if clazz == "svl::IUndoManager": print extractModuleName(clazz)
  73         if clazz == "svl::IUndoManager": print extractModuleName(otherclazz)
  74         # exclude combinations that span modules because we often use those to make cross-module dependencies more manageable.
  75         if extractModuleName(clazz) != extractModuleName(otherclazz):
  76             continue
  77         f.write( "merge " + clazz + " with " + otherclazz + "\n" )
  78