compilerplugins/clang/store/inlinefields.py

   1 #!/usr/bin/python
   2
   3 import re
   4 import io
   5
   6 definitionToSourceLocationMap = dict() # dict of tuple(parentClass, fieldName) to sourceLocation
   7 definitionSet = set()
   8 excludedSet = set()
   9 deletedInDestructorSet = set()
  10 newedInConstructorSet = set()
  11
  12 # clang does not always use exactly the same numbers in the type-parameter vars it generates
  13 # so I need to substitute them to ensure we can match correctly.
  14 normalizeTypeParamsRegex = re.compile(r"type-parameter-\d+-\d+")
  15 def normalizeTypeParams( line ):
  16     return normalizeTypeParamsRegex.sub("type-parameter-?-?", line)
  17
  18 # reading as binary (since we known it is pure ascii) is much faster than reading as unicode
  19 with io.open("workdir/loplugin.inlinefields.log", "rb", buffering=1024*1024) as txt:
  20     for line in txt:
  21         tokens = line.strip().split("\t")
  22         if tokens[0] == "definition:":
  23             parentClass = normalizeTypeParams(tokens[1])
  24             fieldName = normalizeTypeParams(tokens[2])
  25             sourceLocation = tokens[3]
  26             fieldInfo = (parentClass, fieldName)
  27             definitionSet.add(fieldInfo)
  28             definitionToSourceLocationMap[fieldInfo] = sourceLocation
  29         elif tokens[0] == "excluded:":
  30             parentClass = normalizeTypeParams(tokens[1])
  31             fieldName = normalizeTypeParams(tokens[2])
  32             fieldInfo = (parentClass, fieldName)
  33             excludedSet.add(fieldInfo)
  34         elif tokens[0] == "deletedInDestructor:":
  35             parentClass = normalizeTypeParams(tokens[1])
  36             fieldName = normalizeTypeParams(tokens[2])
  37             fieldInfo = (parentClass, fieldName)
  38             deletedInDestructorSet.add(fieldInfo)
  39         elif tokens[0] == "newedInConstructor:":
  40             parentClass = normalizeTypeParams(tokens[1])
  41             fieldName = normalizeTypeParams(tokens[2])
  42             fieldInfo = (parentClass, fieldName)
  43             newedInConstructorSet.add(fieldInfo)
  44         else:
  45             print( "unknown line: " + line)
  46
  47 tmp1list = list()
  48 for d in definitionSet:
  49 # TODO see comment in InlineFields::VisitCXXDeleteExpr
  50 #    if d in excludedSet or d not in deletedInDestructorSet or d not in newedInConstructorSet:
  51     if d in excludedSet or d not in newedInConstructorSet:
  52         continue
  53     srcLoc = definitionToSourceLocationMap[d]
  54     tmp1list.append((d[0] + " " + d[1], srcLoc))
  55
  56 # sort results by filename:lineno
  57 def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
  58     return [int(text) if text.isdigit() else text.lower()
  59             for text in re.split(_nsre, s)]
  60 # sort by both the source-line and the datatype, so the output file ordering is stable
  61 # when we have multiple items on the same source line
  62 def v_sort_key(v):
  63     return natural_sort_key(v[1]) + [v[0]]
  64 tmp1list.sort(key=lambda v: v_sort_key(v))
  65
  66 # print out the results
  67 with open("loplugin.inlinefields.report", "wt") as f:
  68     for v in tmp1list:
  69         f.write(v[1] + "\n")
  70         f.write("    " + v[0] + "\n")
  71
  72