Function wrapOptions

Source/cmGeneratorTarget_Options.cxx:105–213

};

std::vector<BT<std::string>> wrapOptions(
  std::vector<std::string>& options, cmListFileBacktrace const& bt,
  std::vector<std::string> const& wrapperFlag, std::string const& wrapperSep,
  bool concatFlagAndArgs, NestedLinkerFlags nestedLinkerFlags)
{
  std::vector<BT<std::string>> result;

  if (options.empty()) {
    return result;
  }

  if (wrapperFlag.empty()) {
    // nothing specified, insert elements as is
    result.reserve(options.size());
    for (std::string& o : options) {
      result.emplace_back(std::move(o), bt);
    }
    return result;
  }

  auto insertWrapped = [&](std::vector<std::string>& opts) {
    if (!wrapperSep.empty()) {
      if (concatFlagAndArgs) {
        // insert flag elements except last one
        for (auto i = wrapperFlag.begin(); i != wrapperFlag.end() - 1; ++i) {
          result.emplace_back(*i, bt);
        }
        // concatenate last flag element and all list values
        // in one option
        result.emplace_back(wrapperFlag.back() + cmJoin(opts, wrapperSep), bt);
      } else {
        for (std::string const& i : wrapperFlag) {
          result.emplace_back(i, bt);
        }
        // concatenate all list values in one option
        result.emplace_back(cmJoin(opts, wrapperSep), bt);
      }
    } else {
      // prefix each element of list with wrapper
      if (concatFlagAndArgs) {
        std::transform(opts.begin(), opts.end(), opts.begin(),
                       [&wrapperFlag](std::string const& o) -> std::string {
                         return wrapperFlag.back() + o;
                       });
      }
      for (std::string& o : opts) {
        for (auto i = wrapperFlag.begin(),
                  e = concatFlagAndArgs ? wrapperFlag.end() - 1
                                        : wrapperFlag.end();
             i != e; ++i) {
          result.emplace_back(*i, bt);
        }
        result.emplace_back(std::move(o), bt);
      }
    }
  };

  if (nestedLinkerFlags == NestedLinkerFlags::PreserveAsSpelled) {