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#!/usr/bin/python
import sys
import re
import io
definitionToSourceLocationMap = dict() # dict of tuple(parentClass, fieldName) to sourceLocation
fieldAssignDict = dict() # dict of tuple(parentClass, fieldName) to (set of values)
# clang does not always use exactly the same numbers in the type-parameter vars it generates
# so I need to substitute them to ensure we can match correctly.
normalizeTypeParamsRegex = re.compile(r"type-parameter-\d+-\d+")
def normalizeTypeParams( line ):
return normalizeTypeParamsRegex.sub("type-parameter-?-?", line)
# reading as binary (since we known it is pure ascii) is much faster than reading as unicode
with io.open("loplugin.singlevalfields.log", "rb", buffering=1024*1024) as txt:
for line in txt:
tokens = line.strip().split("\t")
if tokens[0] == "defn:":
parentClass = normalizeTypeParams(tokens[1])
fieldName = normalizeTypeParams(tokens[2])
sourceLocation = tokens[3]
fieldInfo = (parentClass, fieldName)
definitionToSourceLocationMap[fieldInfo] = sourceLocation
elif tokens[0] == "asgn:":
parentClass = normalizeTypeParams(tokens[1])
fieldName = normalizeTypeParams(tokens[2])
assignValue = tokens[3]
fieldInfo = (parentClass, fieldName)
if not fieldInfo in fieldAssignDict:
fieldAssignDict[fieldInfo] = set()
fieldAssignDict[fieldInfo].add(assignValue)
tmp1list = list()
for fieldInfo, assignValues in fieldAssignDict.iteritems():
if len(assignValues) != 1:
continue
if "?" in assignValues:
continue
#if len(assignValues - set(["0", "1", "-1", "nullptr"])) > 0:
# continue
# ignore things which are locally declared but are actually redeclarations of things from 3rd party code
containingClass = fieldInfo[0]
if containingClass == "_mwmhints":
continue
# ignore things which are representations of on-disk structures
if containingClass in ["SEPr", "WW8Dop", "BmpInfoHeader", "BmpFileHeader", "Exif::ExifIFD",
"sw::WW8FFData", "FFDataHeader", "INetURLHistory_Impl::head_entry"]:
continue
# Windows-only
if containingClass in ["SfxAppData_Impl", "sfx2::ImplDdeItem"]:
continue
v0 = fieldInfo[0] + " " + fieldInfo[1]
v1 = (",".join(assignValues))
v2 = ""
if fieldInfo in definitionToSourceLocationMap:
v2 = definitionToSourceLocationMap[fieldInfo]
tmp1list.append((v0,v1,v2))
# sort results by filename:lineno
def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
return [int(text) if text.isdigit() else text.lower()
for text in re.split(_nsre, s)]
tmp1list.sort(key=lambda v: natural_sort_key(v[2]))
# print out the results
with open("loplugin.singlevalfields.report", "wt") as f:
for v in tmp1list:
f.write(v[2] + "\n")
f.write(" " + v[0] + "\n")
f.write(" " + v[1] + "\n")
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