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#ifndef CommonTools_Utils_ExpressionUnaryOperator_h
#define CommonTools_Utils_ExpressionUnaryOperator_h
/* \class reco::parser::ExpressionUnaryOperator
*
* Unary Operator expression
*
* \author original version: Chris Jones, Cornell,
* adapted by Luca Lista, INFN
*
* \version $Revision: 1.2 $
*
*/
#include "CommonTools/Utils/interface/parser/ExpressionBase.h"
#include "CommonTools/Utils/interface/parser/ExpressionStack.h"
namespace reco {
namespace parser {
template <typename Op>
struct ExpressionUnaryOperator : public ExpressionBase {
double value(const edm::ObjectWithDict& o) const override { return op_((*exp_).value(o)); }
ExpressionUnaryOperator(ExpressionStack& expStack) {
exp_ = expStack.back();
expStack.pop_back();
}
private:
Op op_;
ExpressionPtr exp_;
};
} // namespace parser
} // namespace reco
#endif
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