XORGroupDescription.h

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#ifndef FWCore_ParameterSet_XORGroupDescription_h
#define FWCore_ParameterSet_XORGroupDescription_h

#include "FWCore/ParameterSet/interface/ParameterDescriptionNode.h"

#include "FWCore/Utilities/interface/value_ptr.h"

#include <memory>
#include <iosfwd>
#include <set>
#include <string>

namespace edm {

  class ParameterSet;
  class DocFormatHelper;

  class XORGroupDescription : public ParameterDescriptionNode {
  public:
    XORGroupDescription(ParameterDescriptionNode const& node_left, ParameterDescriptionNode const& node_right);

    XORGroupDescription(std::unique_ptr<ParameterDescriptionNode> node_left,
                        ParameterDescriptionNode const& node_right);

    XORGroupDescription(ParameterDescriptionNode const& node_left,
                        std::unique_ptr<ParameterDescriptionNode> node_right);

    XORGroupDescription(std::unique_ptr<ParameterDescriptionNode> node_left,
                        std::unique_ptr<ParameterDescriptionNode> node_right);

    ParameterDescriptionNode* clone() const override { return new XORGroupDescription(*this); }

  private:
    void checkAndGetLabelsAndTypes_(std::set<std::string>& usedLabels,
                                    std::set<ParameterTypes>& parameterTypes,
                                    std::set<ParameterTypes>& wildcardTypes) const override;

    void validate_(ParameterSet& pset, std::set<std::string>& validatedLabels, bool optional) const override;

    void writeCfi_(
        std::ostream& os, bool optional, bool& startWithComma, int indentation, bool& wroteSomething) const override;

    void print_(std::ostream& os, bool optional, bool writeToCfi, DocFormatHelper& dfh) const override;

    bool hasNestedContent_() const override { return true; }

    void printNestedContent_(std::ostream& os, bool optional, DocFormatHelper& dfh) const override;

    bool exists_(ParameterSet const& pset) const override;

    bool partiallyExists_(ParameterSet const& pset) const override;

    int howManyXORSubNodesExist_(ParameterSet const& pset) const override;

    void throwMoreThanOneParameter() const;
    void throwAfterValidation() const;

    edm::value_ptr<ParameterDescriptionNode> node_left_;
    edm::value_ptr<ParameterDescriptionNode> node_right_;
  };
}  // namespace edm
#endif