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#!/usr/bin/python3
import re
import io
definitionSet = set()
definitionToSourceLocationMap = dict()
definitionToTypeMap = dict()
castMap = 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)
with io.open("workdir/loplugin.fieldcast.log", "r", buffering=1024*1024) as txt:
for line in txt:
tokens = line.strip().split("\t")
if tokens[0] == "cast:":
fieldInfo = (normalizeTypeParams(tokens[1]), tokens[2])
fieldType = tokens[3]
srcLoc = tokens[4]
castToType = tokens[5]
# ignore external source code
if srcLoc.startswith("external/"):
continue
# ignore build folder
if srcLoc.startswith("workdir/"):
continue
definitionSet.add(fieldInfo)
definitionToTypeMap[fieldInfo] = fieldType
definitionToSourceLocationMap[fieldInfo] = srcLoc
if fieldInfo not in castMap:
castMap[fieldInfo] = castToType
elif castMap[fieldInfo] != "": # if we are not ignoring it
# if it is cast to more than one type, mark it as being ignored
if castMap[fieldInfo] != castToType:
castMap[fieldInfo] = ""
else:
print( "unknown line: " + line)
outputSet = set()
for k, v in castMap.items():
if v == "":
continue
srcLoc = definitionToSourceLocationMap[k]
outputSet.add((k[0] + " " + k[1] + " " + definitionToTypeMap[k], srcLoc, v))
# 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 by both the source-line and the datatype, so the output file ordering is stable
# when we have multiple fields declared on the same source line
def v_sort_key(v):
return natural_sort_key(v[1]) + [v[0]]
# sort results by name and line number
tmp1list = sorted(outputSet, key=lambda v: v_sort_key(v))
# print out the results
with open("compilerplugins/clang/fieldcast.results", "wt") as f:
for t in tmp1list:
f.write( t[1] + "\n" )
f.write( " " + t[0] + "\n" )
f.write( " " + t[2] + "\n" )
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