/usr/lib/R/site-library/dplyr/include/dplyr/SubsetVectorVisitor.h is in r-cran-dplyr 0.7.4-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | #ifndef dplyr_SubsetVectorVisitor_H
#define dplyr_SubsetVectorVisitor_H
#include <tools/SlicingIndex.h>
#include <dplyr/DataFrameVisitorsIndexMap.h>
#include <dplyr/EmptySubset.h>
namespace dplyr {
template <typename Container>
inline int output_size(const Container& container) {
return container.size();
}
/**
* Subset Vector visitor base class, defines the interface
*/
class SubsetVectorVisitor {
public:
virtual ~SubsetVectorVisitor() {}
/** creates a new vector, of the same type as the visited vector, by
* copying elements at the given indices
*/
virtual SEXP subset(const Rcpp::IntegerVector& index) const = 0;
virtual SEXP subset(const std::vector<int>&) const = 0;
virtual SEXP subset(const SlicingIndex&) const = 0;
/** creates a new vector, of the same type as the visited vector, by
* copying elements at the given indices
*/
virtual SEXP subset(const ChunkIndexMap& index) const = 0;
virtual SEXP subset(EmptySubset) const = 0;
virtual int size() const = 0;
virtual std::string get_r_type() const = 0;
bool is_same_typeid(SubsetVectorVisitor* other) const {
return typeid(*other) == typeid(*this);
}
virtual bool is_same_type(SubsetVectorVisitor* other, std::stringstream&, const SymbolString&) const {
return is_same_typeid(other);
}
virtual bool is_compatible(SubsetVectorVisitor* other, std::stringstream&, const SymbolString&) const = 0;
};
} // namespace dplyr
#endif
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