Function.h

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#ifndef CATALOG_SYSTABLES_Function_H
#define CATALOG_SYSTABLES_Function_H
 
namespace taco {
 
class SysTable_Function {
public:
 
    constexpr Oid
    funcid() const {
        return m_funcid;
    }
 
    constexpr int16_t
    funcnargs() const {
        return m_funcnargs;
    }
 
    constexpr Oid
    funcrettypid() const {
        return m_funcrettypid;
    }
 
    constexpr const std::string&
    funcname() const {
        return m_funcname;
    }
 
 
 
private:
    SysTable_Function(
        Oid funcid,
        int16_t funcnargs,
        Oid funcrettypid,
        std::string funcname
 
    ):
    m_funcid((funcid)),
    m_funcnargs((funcnargs)),
    m_funcrettypid((funcrettypid)),
    m_funcname(std::move(funcname))
{}
 
    Oid m_funcid;
    int16_t m_funcnargs;
    Oid m_funcrettypid;
    std::string m_funcname;
 
    std::vector<Datum> GetDatumVector() const;
 
    static SysTable_Function *Create(const std::vector<Datum>&);
 
    SysTable_Function(const SysTable_Function&) = default;
    SysTable_Function& operator=(const SysTable_Function&) = default;
 
    friend class BootstrapCatCache;
    friend class CatCacheInternalAccess;
 
public:
    // The following are constants of the field ids in the systables.
    // These are mostly used by the catalog cache impl. to prevent accidental
    // misspelling of column names.
 
    inline static constexpr FieldId
    funcid_colid() {
        return 0;
    }
 
    inline static constexpr FieldId
    funcnargs_colid() {
        return 1;
    }
 
    inline static constexpr FieldId
    funcrettypid_colid() {
        return 2;
    }
 
    inline static constexpr FieldId
    funcname_colid() {
        return 3;
    }
 
 
};
 
}        // namespace taco
 
#endif  // CATALOG_SYSTABLES_Function_H