ed5badda3d518c869aa22d6401f604aa864fcfc4,src/python/pants/build_graph/build_file_address_mapper.py,BuildFileAddressMapper,scan_addresses,#BuildFileAddressMapper#Any#Any#,201
 Before Change 
    :rtype: set of :class:`pants.build_graph.address.Address`
    :raises AddressLookupError: if there is a problem parsing a BUILD file
    
    if root and os.path.commonprefix([get_buildroot(), root]) != get_buildroot() :
      raise self.InvalidRootError("The given root_dir is not an absolute sub-directory of the "
                                  "build root: {}".format(root))
    base_path = os.path.relpath(root, get_buildroot()) if root else NoneAfter Change 
    base_path = None
    if root:
      try:
        base_path = fast_relpath(root, root_dir)
      except ValueError as e:
        raise self.InvalidRootError(e)
     addresses = set()
    try:
      for build_file in self._build_file_type.scan_buildfiles(root_dir=root_dir,
                                                              base_path=base_path,In pattern: SUPERPATTERN
Frequency: 3
Non-data size: 3
Instances  Project Name: pantsbuild/pants
 Commit Name: ed5badda3d518c869aa22d6401f604aa864fcfc4
 Time: 2015-10-18
 Author: john.sirois@gmail.com
 File Name: src/python/pants/build_graph/build_file_address_mapper.py
 Class Name: BuildFileAddressMapper
 Method Name: scan_addresses
 Project Name: pantsbuild/pants
 Commit Name: 3442c3da20317e9e3948639bc96481124d74bf43
 Time: 2016-01-25
 Author: abishev.timur@gmail.com
 File Name: src/python/pants/build_graph/source_mapper.py
 Class Name: LazySourceMapper
 Method Name: _find_owners
 Project Name: pantsbuild/pants
 Commit Name: 3442c3da20317e9e3948639bc96481124d74bf43
 Time: 2016-01-25
 Author: abishev.timur@gmail.com
 File Name: src/python/pants/build_graph/source_mapper.py
 Class Name: SpecSourceMapper
 Method Name: target_addresses_for_source