Function withData

errors/errors.go:126–133

withData returns a new error that wraps err as a chain error message containing v as an extra data item. Calling Data on the returned error yields v. Note that if err already has a data item, it will not be accessible via the returned error value.

(err error, v map[string]interface{})

// Note that if err already has a data item,
// it will not be accessible via the returned error value.
func withData(err error, v map[string]interface{}) error {
	if err == nil {
		return nil
	}
	e1 := wrap(err, "", 1).(wrapperError)
	e1.data = v
	return e1
}

// WithData returns a new error that wraps err
// as a chain error message containing a value of type