compilerplugins/clang/inlinefields.py

   1 #!/usr/bin/python
   2
   3 import sys
   4 import re
   5 import io
   6
   7 definitionToSourceLocationMap = dict() # dict of tuple(parentClass, fieldName) to sourceLocation
   8 definitionSet = set()
   9 excludedSet = set()
  10 deletedInDestructorSet = set()
  11 newedInConstructorSet = set();
  12
  13 # clang does not always use exactly the same numbers in the type-parameter vars it generates
  14 # so I need to substitute them to ensure we can match correctly.
  15 normalizeTypeParamsRegex = re.compile(r"type-parameter-\d+-\d+")
  16 def normalizeTypeParams( line ):
  17     return normalizeTypeParamsRegex.sub("type-parameter-?-?", line)
  18
  19 # reading as binary (since we known it is pure ascii) is much faster than reading as unicode
  20 with io.open("workdir/loplugin.inlinefields.log", "rb", buffering=1024*1024) as txt:
  21     for line in txt:
  22         tokens = line.strip().split("\t")
  23         if tokens[0] == "definition:":
  24             parentClass = normalizeTypeParams(tokens[1])
  25             fieldName = normalizeTypeParams(tokens[2])
  26             sourceLocation = tokens[3]
  27             fieldInfo = (parentClass, fieldName)
  28             definitionSet.add(fieldInfo)
  29             definitionToSourceLocationMap[fieldInfo] = sourceLocation
  30         elif tokens[0] == "excluded:":
  31             parentClass = normalizeTypeParams(tokens[1])
  32             fieldName = normalizeTypeParams(tokens[2])
  33             fieldInfo = (parentClass, fieldName)
  34             excludedSet.add(fieldInfo)
  35         elif tokens[0] == "deletedInDestructor:":
  36             parentClass = normalizeTypeParams(tokens[1])
  37             fieldName = normalizeTypeParams(tokens[2])
  38             fieldInfo = (parentClass, fieldName)
  39             deletedInDestructorSet.add(fieldInfo)
  40         elif tokens[0] == "newedInConstructor:":
  41             parentClass = normalizeTypeParams(tokens[1])
  42             fieldName = normalizeTypeParams(tokens[2])
  43             fieldInfo = (parentClass, fieldName)
  44             newedInConstructorSet.add(fieldInfo)
  45         else:
  46             print( "unknown line: " + line)
  47
  48 # Invert the definitionToSourceLocationMap
  49 # If we see more than one method at the same sourceLocation, it's being autogenerated as part of a template
  50 # and we should just ignore it
  51 sourceLocationToDefinitionMap = {}
  52 for k, v in definitionToSourceLocationMap.iteritems():
  53     sourceLocationToDefinitionMap[v] = sourceLocationToDefinitionMap.get(v, [])
  54     sourceLocationToDefinitionMap[v].append(k)
  55 for k, definitions in sourceLocationToDefinitionMap.iteritems():
  56     if len(definitions) > 1:
  57         for d in definitions:
  58             definitionSet.remove(d)
  59
  60 tmp1list = list()
  61 for d in definitionSet:
  62 # TODO see comment in InlineFields::VisitCXXDeleteExpr
  63 #    if d in excludedSet or d not in deletedInDestructorSet or d not in newedInConstructorSet:
  64     if d in excludedSet or d not in newedInConstructorSet:
  65         continue
  66     srcLoc = definitionToSourceLocationMap[d];
  67     tmp1list.append((d[0] + " " + d[1], srcLoc))
  68
  69 # sort results by filename:lineno
  70 def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
  71     return [int(text) if text.isdigit() else text.lower()
  72             for text in re.split(_nsre, s)]
  73 tmp1list.sort(key=lambda v: natural_sort_key(v[1]))
  74
  75 # print out the results
  76 with open("loplugin.inlinefields.report", "wt") as f:
  77     for v in tmp1list:
  78         f.write(v[1] + "\n")
  79         f.write("    " + v[0] + "\n")
  80
  81