)

//go:generate msgp -file $GOFILE -io=false -tests=false -unexported=false

//msgp:ignore ObjectOptions TransitionOptions DeleteBucketOptions

// CheckPreconditionFn returns true if precondition check failed.
type CheckPreconditionFn func(o ObjectInfo) bool

// EvalMetadataFn validates input objInfo and GetObjectInfo error and returns an updated metadata and replication decision if any

		return nil, err
	}

	partInfosInQuorum := make([]ObjectPartInfo, len(partMetaPaths))
	for pidx := range partMetaPaths {
		// partMetaQuorumMap uses
		//  - path/to/part.N as key to collate errors from failed drives.
		//  - part ETag to collate part metadata
		partMetaQuorumMap := make(map[string]int, len(partNumbers))
		var pinfos []*ObjectPartInfo
		for idx := range disks {

			return true
		}
		if parseRangeErr != nil {
			writeCopyPartErr(ctx, w, parseRangeErr, r.URL)
			// Range header mismatch is pre-condition like failure
			// so return true to indicate Range precondition failed.
			return true
		}
		return false
	}
	getOpts.CheckPrecondFn = checkCopyPartPrecondFn
	gr, err := getObjectNInfo(ctx, srcBucket, srcObject, rs, r.Header, getOpts)
	if err != nil {

		case encrypted:
			decSize, err := sio.DecryptedSize(uint64(n))
			if err == nil {
				actualSize = int64(decSize)
			}
		default:
			actualSize = n
		}
	}
	// If ServerSideChecksum is wanted for this object, it takes precedence
	// over opts.WantChecksum.
	if opts.WantServerSideChecksumType.IsSet() {
		serverSideChecksum := r.RawServerSideChecksumResult()
		if serverSideChecksum != nil {

						!isErrPreconditionFailed(proxyGetErr) && !isErrInvalidRange(proxyGetErr) {
						replLogIf(ctx, fmt.Errorf("Proxying request (replication) failed for %s/%s(%s) - %w", bucket, object, opts.VersionID, perr))
					}
				}
				if reader != nil && proxy.Proxy && perr == nil {
					gr = reader
				}
			}
		}
		if reader == nil || !proxy.Proxy {