int8.go 917 B

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  1. package column
  2. import (
  3. "github.com/ClickHouse/clickhouse-go/lib/binary"
  4. )
  5. type Int8 struct{ base }
  6. func (Int8) Read(decoder *binary.Decoder, isNull bool) (interface{}, error) {
  7. v, err := decoder.Int8()
  8. if err != nil {
  9. return int8(0), err
  10. }
  11. return v, nil
  12. }
  13. func (i *Int8) Write(encoder *binary.Encoder, v interface{}) error {
  14. switch v := v.(type) {
  15. case int8:
  16. return encoder.Int8(v)
  17. case int64:
  18. return encoder.Int8(int8(v))
  19. case int:
  20. return encoder.Int8(int8(v))
  21. case bool:
  22. if v {
  23. return encoder.Int8(int8(1))
  24. }
  25. return encoder.Int8(int8(0))
  26. // this relies on Nullable never sending nil values through
  27. case *int8:
  28. return encoder.Int8(*v)
  29. case *int64:
  30. return encoder.Int8(int8(*v))
  31. case *int:
  32. return encoder.Int8(int8(*v))
  33. case *bool:
  34. if *v {
  35. return encoder.Int8(int8(1))
  36. }
  37. return encoder.Int8(int8(0))
  38. }
  39. return &ErrUnexpectedType{
  40. T: v,
  41. Column: i,
  42. }
  43. }