sam_builder_data_field.h

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#ifndef gamgee__sam_builder_data_field__guard
#define gamgee__sam_builder_data_field__guard

#include <memory>

namespace gamgee {

class SamBuilderDataField {
 public:
  SamBuilderDataField();                                                                                                             
  explicit SamBuilderDataField(const void* copy_source, const uint32_t bytes_to_copy, const uint32_t num_elements);                  
  explicit SamBuilderDataField(std::unique_ptr<uint8_t[]>&& move_source, const uint32_t source_bytes, const uint32_t num_elements);  
  SamBuilderDataField(SamBuilderDataField&& other);
  SamBuilderDataField& operator=(SamBuilderDataField&& other);

  // Fields cannot be copied (only moved), and use default destruction
  SamBuilderDataField(const SamBuilderDataField& other) = delete;
  SamBuilderDataField& operator=(const SamBuilderDataField& other) = delete;
  ~SamBuilderDataField() = default;

  const uint8_t* raw_data_ptr() const { return m_data.get(); }  
  uint32_t num_bytes() const { return m_num_bytes; }            
  uint32_t num_elements() const { return m_num_elements; }      
  bool empty() const { return m_num_bytes == 0; }               

  void update(const void* copy_source, const uint32_t bytes_to_copy, const uint32_t num_elements);                   
  void update(std::unique_ptr<uint8_t[]>&& move_source, const uint32_t source_bytes, const uint32_t num_elements);   
  uint8_t* copy_into(uint8_t* destination) const;    

 private:
  std::unique_ptr<uint8_t[]> m_data;  
  uint32_t m_num_bytes;               
  uint32_t m_num_elements;            
};

}

#endif /* gamgee__sam_builder_data_field__guard */