result.cpp

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#include <yaclib/util/result.hpp>
 
namespace yaclib {
 
template class Result<>;
 
const std::exception_ptr& StopPtr() noexcept {
  // yaclib objects must not have static storage duration:
  // e.g. a Promise destroyed during static destruction would cancel after this is destroyed
  static const std::exception_ptr stop = std::make_exception_ptr(StopException{});
  return stop;
}
 
bool IsStop(const std::exception_ptr& error) noexcept {
  if (error == nullptr) {
    return false;
  }
  if (error == StopPtr()) {
    return true;
  }
  try {
    std::rethrow_exception(error);
  } catch (const StopException&) {
    return true;
  } catch (...) {
    return false;
  }
}
 
}  // namespace yaclib