int32.go 755 B

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  1. package column
  2. import (
  3. "github.com/ClickHouse/clickhouse-go/lib/binary"
  4. )
  5. type Int32 struct{ base }
  6. func (Int32) Read(decoder *binary.Decoder, isNull bool) (interface{}, error) {
  7. v, err := decoder.Int32()
  8. if err != nil {
  9. return int32(0), err
  10. }
  11. return v, nil
  12. }
  13. func (i *Int32) Write(encoder *binary.Encoder, v interface{}) error {
  14. switch v := v.(type) {
  15. case int32:
  16. return encoder.Int32(v)
  17. case int64:
  18. return encoder.Int32(int32(v))
  19. case int:
  20. return encoder.Int32(int32(v))
  21. // this relies on Nullable never sending nil values through
  22. case *int32:
  23. return encoder.Int32(*v)
  24. case *int64:
  25. return encoder.Int32(int32(*v))
  26. case *int:
  27. return encoder.Int32(int32(*v))
  28. }
  29. return &ErrUnexpectedType{
  30. T: v,
  31. Column: i,
  32. }
  33. }