Function GetDomain

domains/domains.go:36–49

GetDomain extracts the domain of the given error, or NoDomain if the error's cause does not have a domain annotation.

(err error)

// GetDomain extracts the domain of the given error, or NoDomain if
// the error's cause does not have a domain annotation.
func GetDomain(err error) Domain {
	for {
		if b, ok := err.(*withDomain); ok {
			return b.domain
		}
		// Recurse to the cause.
		if c := errbase.UnwrapOnce(err); c != nil {
			err = c
			continue
		}
		break
	}
	return NoDomain
}

// WithDomain wraps an error so that it appears to come from the given domain.
//