Function cmIncludeGuardCommand

Source/cmIncludeGuardCommand.cxx:49–104

cmIncludeGuardCommand

// cmIncludeGuardCommand
bool cmIncludeGuardCommand(std::vector<std::string> const& args,
                           cmExecutionStatus& status)
{
  if (args.size() > 1) {
    status.SetError(
      "given an invalid number of arguments. The command takes at "
      "most 1 argument.");
    return false;
  }

  IncludeGuardScope scope = VARIABLE;

  if (!args.empty()) {
    std::string const& arg = args[0];
    if (arg == "DIRECTORY") {
      scope = DIRECTORY;
    } else if (arg == "GLOBAL") {
      scope = GLOBAL;
    } else {
      status.SetError("given an invalid scope: " + arg);
      return false;
    }
  }

  std::string includeGuardVar = GetIncludeGuardVariableName(
    *status.GetMakefile().GetDefinition("CMAKE_CURRENT_LIST_FILE"));

  cmMakefile* const mf = &status.GetMakefile();

  switch (scope) {
    case VARIABLE:
      if (mf->IsDefinitionSet(includeGuardVar)) {
        status.SetReturnInvoked();
        return true;
      }
      mf->AddDefinitionBool(includeGuardVar, true);
      break;
    case DIRECTORY:
      if (CheckIncludeGuardIsSet(mf, includeGuardVar)) {
        status.SetReturnInvoked();
        return true;
      }
      mf->SetProperty(includeGuardVar, "TRUE");
      break;
    case GLOBAL:
      cmake* const cm = mf->GetCMakeInstance();
      if (cm->GetProperty(includeGuardVar)) {
        status.SetReturnInvoked();
        return true;
      }
      cm->SetProperty(includeGuardVar, "TRUE");
      break;
  }

  return true;
}