Function getTypeDetails

errbase/encode.go:218–252

(
	err error, onlyFamily bool,
)

}

func getTypeDetails(
	err error, onlyFamily bool,
) (origTypeName string, typeKeyFamily string, typeKeyExtension string) {
	// If we have received an error of type not known locally,
	// we still know its type name. Return that.
	switch t := err.(type) {
	case *opaqueLeaf:
		return t.details.OriginalTypeName, t.details.ErrorTypeMark.FamilyName, t.details.ErrorTypeMark.Extension
	case *opaqueLeafCauses:
		return t.details.OriginalTypeName, t.details.ErrorTypeMark.FamilyName, t.details.ErrorTypeMark.Extension
	case *opaqueWrapper:
		return t.details.OriginalTypeName, t.details.ErrorTypeMark.FamilyName, t.details.ErrorTypeMark.Extension
	}

	// Compute the full error name, for reporting and printing details.
	tn := getFullTypeName(err)
	// Compute a family name, used to find decoders and to compare error identities.
	fm := tn
	if prevKey, ok := backwardRegistry[TypeKey(tn)]; ok {
		fm = string(prevKey)
	}

	if onlyFamily {
		return tn, fm, ""
	}

	// If the error has an extra type marker, add it.
	// This is not used by the base functionality but
	// is hooked into by the barrier subsystem.
	var em string
	if tm, ok := err.(TypeKeyMarker); ok {
		em = tm.ErrorKeyMarker()
	}
	return tn, fm, em
}

// TypeKeyMarker can be implemented by errors that wish to extend
// their type name as seen by GetTypeKey().