Method ~Regexp

extern/re2/re2/regexp.cc:46–65

Destructor. Assumes already cleaned up children. Private: use Decref() instead of delete to destroy Regexps. Can't call Decref on the sub-Regexps here because that could cause arbitrarily deep recursion, so required Decref() to have handled them for us.

// that could cause arbitrarily deep recursion, so
// required Decref() to have handled them for us.
Regexp::~Regexp() {
  if (nsub_ > 0)
    LOG(DFATAL) << "Regexp not destroyed.";

  switch (op_) {
    default:
      break;
    case kRegexpCapture:
      delete name_;
      break;
    case kRegexpLiteralString:
      delete[] runes_;
      break;
    case kRegexpCharClass:
      if (cc_)
        cc_->Delete();
      delete ccb_;
      break;
  }
}

// If it's possible to destroy this regexp without recurring,
// do so and return true.  Else return false.