package object import ( "crypto/sha256" "github.com/nspcc-dev/neofs-api-go/v2/refs" "github.com/pkg/errors" ) // ID represents object identifier that // supports different type of values. type ID struct { val []byte } // SetSHA256 sets object identifier value to SHA256 checksum. func (id *ID) SetSHA256(v [sha256.Size]byte) { if id != nil { id.val = v[:] } } // ToV2 converts ID to v2 ObjectID message. func (id *ID) ToV2() *refs.ObjectID { if id != nil { idV2 := new(refs.ObjectID) idV2.SetValue(id.val) return idV2 } return nil } // IDFromV2 converts v2 ObjectID message to ID. // // Returns an error if the format of the identifier // in the message is broken. func IDFromV2(idV2 *refs.ObjectID) (*ID, error) { val := idV2.GetValue() if ln := len(val); ln != sha256.Size { return nil, errors.Errorf("could not convert %T to %T: invalid length %d", idV2, (*ID)(nil), ln, ) } return &ID{ val: val, }, nil }