Function StaticLibraryCycle

Source/cmQtAutoGenInitializer.cxx:102–141

* Tests if targetDepend is a STATIC_LIBRARY and if any of its * recursive STATIC_LIBRARY dependencies depends on targetOrigin * (STATIC_LIBRARY cycle). */

 * (STATIC_LIBRARY cycle).
 */
bool StaticLibraryCycle(cmGeneratorTarget const* targetOrigin,
                        cmGeneratorTarget const* targetDepend,
                        std::string const& config)
{
  bool cycle = false;
  if ((targetOrigin->GetType() == cmStateEnums::STATIC_LIBRARY) &&
      (targetDepend->GetType() == cmStateEnums::STATIC_LIBRARY)) {
    std::set<cmGeneratorTarget const*> knownLibs;
    std::deque<cmGeneratorTarget const*> testLibs;

    // Insert initial static_library dependency
    knownLibs.insert(targetDepend);
    testLibs.push_back(targetDepend);

    while (!testLibs.empty()) {
      cmGeneratorTarget const* testTarget = testLibs.front();
      testLibs.pop_front();
      // Check if the test target is the origin target (cycle)
      if (testTarget == targetOrigin) {
        cycle = true;
        break;
      }
      // Collect all static_library dependencies from the test target
      cmLinkImplementationLibraries const* libs =
        testTarget->GetLinkImplementationLibraries(
          config, cmGeneratorTarget::UseTo::Link);
      if (libs) {
        for (cmLinkItem const& item : libs->Libraries) {
          cmGeneratorTarget const* depTarget = item.Target;
          if (depTarget &&
              (depTarget->GetType() == cmStateEnums::STATIC_LIBRARY) &&
              knownLibs.insert(depTarget).second) {
            testLibs.push_back(depTarget);
          }
        }
      }
    }
  }
  return cycle;
}

/** Sanitizes file search paths.  */
class SearchPathSanitizer