record_datatype.h

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 * Copyright (C) 2020 Institute of Bioorganic Chemistry Polish Academy of Science (PSNC)
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#ifndef PDI_RECORD_DATATYPE_H_
#define PDI_RECORD_DATATYPE_H_

#include <string>
#include <vector>

#include <pdi/pdi_fwd.h>
#include <pdi/datatype.h>


namespace PDI {

class PDI_EXPORT Record_datatype:
    public Datatype
{
public:
    class Member_accessor : public Accessor_base
    {
        std::string m_member_name;
        
        std::string access_kind() const override;
    public:
        Member_accessor(const std::string& member_name);
        
        std::pair<void*, Datatype_uptr> access(const Record_datatype& record_type,
            void* from,
            std::vector<std::unique_ptr<Accessor_base>>::const_iterator remaining_begin,
            std::vector<std::unique_ptr<Accessor_base>>::const_iterator remaining_end) const override;
            
        std::unique_ptr<Accessor_base> clone() const override;
    };
    
    class Member
    {
        size_t m_displacement;
        
        Datatype_uptr m_type;
        
        std::string m_name;
        
    public:
        Member(size_t displacement, Datatype_uptr type, const std::string& name);
        
        Member(const Member& o);
        
        size_t displacement() const;
        
        const Datatype& type() const;
        
        const std::string& name() const;
        
        bool operator==(const Member& rhs) const;
        
        bool operator!=(const Member& rhs) const;
        
    };
    
private:
    std::vector<Member> m_members;
    
    size_t m_buffersize;
    
public:
    Record_datatype(std::vector<Member>&& members, size_t size);
    
    const std::vector<Member>& members() const;
    
    
    Datatype_template_uptr clone() const override;
    
    Datatype_uptr clone_type() const override;
    
    Datatype_uptr densify() const override;
    
    Datatype_uptr evaluate(Context&) const override;
    
    bool dense() const override;
    
    size_t datasize() const override;
    
    size_t buffersize() const override;
    
    size_t alignment() const override;
    
    bool simple() const override;
    
    void* data_to_dense_copy(void* to, const void*) const override;
    
    void* data_from_dense_copy(void* to, const void*) const override;
    
    std::pair<void*, Datatype_uptr> subaccess_by_iterators(void* from,
        std::vector<std::unique_ptr<Accessor_base>>::const_iterator remaining_begin,
        std::vector<std::unique_ptr<Accessor_base>>::const_iterator remaining_end) const override;
        
    void destroy_data(void*) const override;
    
    std::string debug_string() const override;
    
    bool operator== (const Datatype&) const override;
    
};

} // namespace PDI

#endif // PDI_RECORD_DATATYPE_H_