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