mirror of https://github.com/go-redis/redis.git
132 lines
2.3 KiB
Go
132 lines
2.3 KiB
Go
package proto
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import (
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"encoding"
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"fmt"
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"reflect"
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"github.com/go-redis/redis/internal"
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)
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func Scan(b []byte, v interface{}) error {
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switch v := v.(type) {
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case nil:
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return fmt.Errorf("redis: Scan(nil)")
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case *string:
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*v = internal.BytesToString(b)
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return nil
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case *[]byte:
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*v = b
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return nil
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case *int:
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var err error
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*v, err = atoi(b)
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return err
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case *int8:
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n, err := parseInt(b, 10, 8)
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if err != nil {
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return err
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}
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*v = int8(n)
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return nil
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case *int16:
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n, err := parseInt(b, 10, 16)
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if err != nil {
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return err
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}
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*v = int16(n)
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return nil
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case *int32:
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n, err := parseInt(b, 10, 32)
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if err != nil {
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return err
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}
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*v = int32(n)
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return nil
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case *int64:
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n, err := parseInt(b, 10, 64)
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if err != nil {
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return err
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}
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*v = n
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return nil
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case *uint:
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n, err := parseUint(b, 10, 64)
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if err != nil {
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return err
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}
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*v = uint(n)
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return nil
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case *uint8:
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n, err := parseUint(b, 10, 8)
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if err != nil {
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return err
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}
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*v = uint8(n)
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return nil
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case *uint16:
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n, err := parseUint(b, 10, 16)
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if err != nil {
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return err
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}
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*v = uint16(n)
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return nil
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case *uint32:
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n, err := parseUint(b, 10, 32)
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if err != nil {
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return err
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}
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*v = uint32(n)
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return nil
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case *uint64:
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n, err := parseUint(b, 10, 64)
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if err != nil {
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return err
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}
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*v = n
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return nil
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case *float32:
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n, err := parseFloat(b, 32)
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if err != nil {
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return err
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}
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*v = float32(n)
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return err
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case *float64:
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var err error
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*v, err = parseFloat(b, 64)
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return err
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case *bool:
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*v = len(b) == 1 && b[0] == '1'
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return nil
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case encoding.BinaryUnmarshaler:
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return v.UnmarshalBinary(b)
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default:
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return fmt.Errorf(
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"redis: can't unmarshal %T (consider implementing BinaryUnmarshaler)", v)
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}
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}
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func ScanSlice(data []string, slice interface{}) error {
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v := reflect.ValueOf(slice)
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if !v.IsValid() {
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return fmt.Errorf("redis: ScanSlice(nil)")
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}
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if v.Kind() != reflect.Ptr {
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return fmt.Errorf("redis: ScanSlice(non-pointer %T)", slice)
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}
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v = v.Elem()
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if v.Kind() != reflect.Slice {
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return fmt.Errorf("redis: ScanSlice(non-slice %T)", slice)
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}
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for i, s := range data {
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elem := internal.SliceNextElem(v)
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if err := Scan(internal.StringToBytes(s), elem.Addr().Interface()); err != nil {
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return fmt.Errorf("redis: ScanSlice(index=%d value=%q) failed: %s", i, s, err)
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}
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}
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return nil
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}
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