NullWalker         26 third_party/re2/re2/testing/null_walker.cc   DISALLOW_EVIL_CONSTRUCTORS(NullWalker);
NullWalker         33 third_party/re2/re2/testing/null_walker.cc bool NullWalker::PostVisit(Regexp* re, bool parent_arg, bool pre_arg,
NullWalker         40 third_party/re2/re2/testing/null_walker.cc   NullWalker w;