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#!/usr/bin/python
import sys
instantiatedSet = set()
definitionSet = set()
parentChildDict = {}
definitionToFileDict = {}
with open("workdir/loplugin.mergeclasses.log") as txt:
for line in txt:
tokens = line.strip().split("\t")
if len(tokens) == 1:
pass
elif tokens[0] == "instantiated:":
clazzName = tokens[1]
if (clazzName.startswith("const ")):
clazzName = clazzName[6:]
if (clazzName.startswith("class ")):
clazzName = clazzName[6:]
if (clazzName.startswith("::")):
clazzName = clazzName[2:]
instantiatedSet.add(clazzName)
elif tokens[0] == "definition:":
clazzName = tokens[1]
# the 1.. is so we skip the leading /
fileName = tokens[2][1:]
definitionSet.add(clazzName)
definitionToFileDict[clazzName] = fileName
elif tokens[0] == "has-subclass:":
child = tokens[1]
parent = tokens[2]
if (parent.startswith("class ")):
parent = parent[6:]
elif (parent.startswith("struct ")):
parent = parent[7:]
if (child.startswith("class ")):
child = child[6:]
elif (child.startswith("struct ")):
child = child[7:]
if (parent not in parentChildDict):
parentChildDict[parent] = set()
parentChildDict[parent].add(child)
def extractModuleName(clazz):
filename = definitionToFileDict[clazz]
if filename.startswith("include/"):
filename = filename[8:]
idx = filename.find("/")
return filename[:idx]
with open("compilerplugins/clang/mergeclasses.results", "wt") as f:
# loop over defined, but not instantiated classes
for clazz in sorted(definitionSet - instantiatedSet):
# ignore classes without any children, and classes with more than one child
if (clazz not in parentChildDict) or (len(parentChildDict[clazz]) != 1):
continue
# exclude some common false positives
a = ['Dialog', 'Dlg', 'com::sun', 'Base']
if any(x in clazz for x in a):
continue
# ignore base class that contain the word "mutex", they are normally there to
# help with the WeakComponentImpl template magic
if ("mutex" in clazz) or ("Mutex" in clazz):
continue
otherclazz = next(iter(parentChildDict[clazz]))
# exclude combinations that span modules because we often use those to make cross-module dependencies more manageable.
if extractModuleName(clazz) != extractModuleName(otherclazz):
continue
f.write( "merge " + clazz + " with " + otherclazz + "\n" )
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