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44 lines
709 B
44 lines
709 B
package internal
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import (
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fasthex "github.com/tmthrgd/go-hex"
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)
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type HexEncoder struct {
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b []byte
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written bool
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}
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func NewHexEncoder(b []byte) *HexEncoder {
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return &HexEncoder{
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b: b,
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}
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}
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func (enc *HexEncoder) Bytes() []byte {
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return enc.b
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}
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func (enc *HexEncoder) Write(b []byte) (int, error) {
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if !enc.written {
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enc.b = append(enc.b, '\'')
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enc.b = append(enc.b, `\x`...)
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enc.written = true
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}
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i := len(enc.b)
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enc.b = append(enc.b, make([]byte, fasthex.EncodedLen(len(b)))...)
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fasthex.Encode(enc.b[i:], b)
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return len(b), nil
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}
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func (enc *HexEncoder) Close() error {
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if enc.written {
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enc.b = append(enc.b, '\'')
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} else {
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enc.b = append(enc.b, "NULL"...)
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}
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return nil
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}
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