office-gobmx/compilerplugins/clang/constantparam.py
Noel Grandin ef3ca022d9 constantparam loplugin improvements
clean up the python code, filter out setter methods

Change-Id: I8294dd305a30708cf0e81c5328935ec8f6cdc8d4
Reviewed-on: https://gerrit.libreoffice.org/23466
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>
2016-03-23 12:05:37 +00:00

66 lines
2.3 KiB
Python
Executable file

#!/usr/bin/python
import sys
import re
import io
definitionSet = set()
definitionToSourceLocationMap = dict()
callParamSet = dict()
# 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(sys.argv[1], "rb", buffering=1024*1024) as txt:
for line in txt:
idx1 = line.find("\t")
idx2 = line.find("\t",idx1+1)
idx3 = line.find("\t",idx2+1)
idx4 = line.find("\t",idx3+1)
returnType = normalizeTypeParams(line[:idx1])
nameAndParams = normalizeTypeParams(line[idx1+1:idx2])
sourceLocation = line[idx2+1:idx3]
paramName = line[idx3+1:idx4]
callValue = line[idx4+1:].strip()
callInfo = (returnType, nameAndParams, paramName)
if not callInfo in callParamSet:
callParamSet[callInfo] = set()
callParamSet[callInfo].add(callValue)
definitionToSourceLocationMap[callInfo] = sourceLocation
tmp1list = list()
for callInfo, callValues in callParamSet.iteritems():
nameAndParams = callInfo[1]
if len(callValues) != 1:
continue
if "unknown" in callValues:
continue
# ignore anything with only one parameter, normally just setter methods
if nameAndParams.find(",") == -1:
continue
# if it contains anything other than this set, ignore it
if len(callValues - set(["0", "1", "-1", "nullptr"])) > 0:
continue
v0 = callInfo[0] + " " + callInfo[1]
v1 = callInfo[2] + " " + (",".join(callValues))
v2 = definitionToSourceLocationMap[callInfo]
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("unused.constantparams", "wt") as f:
for v in tmp1list:
f.write(v[2] + "\n")
f.write(" " + v[0] + "\n")
f.write(" " + v[1] + "\n")