Method GetObjectFileNameWithoutTarget

Source/cmLocalGenerator.cxx:4576–4673

}

std::string cmLocalGenerator::GetObjectFileNameWithoutTarget(
  cmSourceFile const& source, std::string const& dir_max,
  bool* hasSourceExtension, char const* customOutputExtension,
  bool const* forceShortObjectName)
{
  bool useShortObjectNames = this->UseShortObjectNames();
  if (forceShortObjectName) {
    useShortObjectNames = *forceShortObjectName;
  }

  if (!useShortObjectNames &&
      this->GetGlobalGenerator()->SupportsCustomObjectNames()) {
    auto customName = this->GetCustomObjectFileName(source);
    if (!customName.empty()) {
      auto ext = this->GlobalGenerator->GetLanguageOutputExtension(source);
      if (customOutputExtension) {
        ext = *customOutputExtension;
      }
      return cmStrCat(customName, ext);
    }
  }

  // This can return an absolute path in the case where source is
  // not relative to the current source or binary directories
  std::string objectName = this->GetRelativeSourceFileName(source);
  // if it is still a full path check for the try compile case
  // try compile never have in source sources, and should not
  // have conflicting source file names in the same target
  if (cmSystemTools::FileIsFullPath(objectName)) {
    if (this->GetGlobalGenerator()->GetCMakeInstance()->GetIsInTryCompile()) {
      objectName = cmSystemTools::GetFilenameName(source.GetFullPath());
    }
  }
  bool const isPchObject = source.IsPchHeader() || source.IsPchSource();

  // Short object path policy selected, use as little info as necessary to
  // select an object name
  bool keptSourceExtension = true;
  if (useShortObjectNames) {
    objectName = this->GetShortObjectFileName(source);
    keptSourceExtension = false;
  }

  // Ensure that for the CMakeFiles/<target>.dir/generated_source_file
  // we don't end up having:
  // CMakeFiles/<target>.dir/CMakeFiles/<target>.dir/generated_source_file.obj
  cmValue unitySourceFile = source.GetProperty("UNITY_SOURCE_FILE");
  cmValue pchExtension = source.GetProperty("PCH_EXTENSION");
  if (unitySourceFile || pchExtension || isPchObject) {
    if (pchExtension) {
      customOutputExtension = pchExtension->c_str();
    }

    cmsys::RegularExpression var("(CMakeFiles/[^/]+.dir/)");
    if (var.find(objectName)) {
      objectName.erase(var.start(), var.end() - var.start());
    }
  }