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#!/usr/bin/python
import sys
import re
import io
definitionSet = set()
definitionToSourceLocationMap = dict()
callSet = set()
# things we need to exclude for reasons like :
# - it's a weird template thingy that confuses the plugin
exclusionSet = set([
"class boost::intrusive_ptr<class FontCharMap> FontCharMap::GetDefaultMap(_Bool)"
])
# 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)
# The parsing here is designed to avoid grabbing stuff which is mixed in from gbuild.
# I have not yet found a way of suppressing the gbuild output.
with io.open(sys.argv[1], "rb", buffering=1024*1024) as txt:
for line in txt:
if line.startswith("defn:\t"):
idx1 = line.find("\t",6)
idx2 = line.find("\t",idx1+1)
idx3 = line.find("\t",idx2+1)
access = line[6:idx1]
returnType = line[idx1+1:idx2]
nameAndParams = line[idx2+1:idx3]
sourceLocation = line[idx3+1:].strip()
funcInfo = (normalizeTypeParams(returnType), normalizeTypeParams(nameAndParams))
definitionSet.add(funcInfo)
definitionToSourceLocationMap[funcInfo] = sourceLocation
elif line.startswith("call:\t"):
idx1 = line.find("\t",6)
returnType = line[6:idx1]
nameAndParams = line[idx1+1:].strip()
callSet.add((normalizeTypeParams(returnType), normalizeTypeParams(nameAndParams)))
# Invert the definitionToSourceLocationMap.
# If we see more than one method at the same sourceLocation, it's being autogenerated as part of a template
# and we should just ignore it.
sourceLocationToDefinitionMap = {}
for k, v in definitionToSourceLocationMap.iteritems():
sourceLocationToDefinitionMap[v] = sourceLocationToDefinitionMap.get(v, [])
sourceLocationToDefinitionMap[v].append(k)
for k, definitions in sourceLocationToDefinitionMap.iteritems():
if len(definitions) > 1:
for d in definitions:
definitionSet.remove(d)
tmp1set = set()
for d in definitionSet:
clazz = d[0] + " " + d[1]
if clazz in exclusionSet:
continue
if d in callSet:
continue
tmp1set.add((clazz, definitionToSourceLocationMap[d]))
# sort the results using a "natural order" so sequences like [item1,item2,item10] sort nicely
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)]
# sort results by name and line number
tmp1list = sorted(tmp1set, key=lambda v: natural_sort_key(v[1]))
# print out the results
with open("unused.defaultparams", "wt") as f:
for t in tmp1list:
f.write(t[1] + "\n")
f.write(" " + t[0] + "\n")
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