get_param_result.hpp

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#pragma once
 
#include <string>
#include <type_traits>
 
#include <ros/console_backend.h>
 
namespace cras
{
 
struct GetParamResultInfo
{
  bool defaultUsed {false};
 
  bool convertFailed {false};
 
  bool requiredMissing {false};
 
  ::std::string message{};
 
  ::ros::console::Level messageLevel {::ros::console::Level::Count};
};
 
template <typename T>
struct GetParamResult
{
  GetParamResult(const T& value, const ::cras::GetParamResultInfo& info) : value(value), info(info) {}
 
  operator T() const  // NOLINT(google-explicit-constructor)
  {
    return this->value;
  }
 
  template <typename = ::std::enable_if<::std::is_same<T, char*>::value>>
  operator ::std::string() const  // NOLINT(google-explicit-constructor)
  {
    return {this->value};
  }
 
  template <int I, typename = ::std::enable_if<::std::is_same<T, char[I]>::value>>
  operator ::std::string() const  // NOLINT(google-explicit-constructor)
  {
    return {this->value};
  }
 
  T value;
 
  ::cras::GetParamResultInfo info {};
};
 
}