multi.go (1438B)
1 // GoToSocial 2 // Copyright (C) GoToSocial Authors admin@gotosocial.org 3 // SPDX-License-Identifier: AGPL-3.0-or-later 4 // 5 // This program is free software: you can redistribute it and/or modify 6 // it under the terms of the GNU Affero General Public License as published by 7 // the Free Software Foundation, either version 3 of the License, or 8 // (at your option) any later version. 9 // 10 // This program is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU Affero General Public License for more details. 14 // 15 // You should have received a copy of the GNU Affero General Public License 16 // along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18 package gtserror 19 20 import ( 21 "errors" 22 "fmt" 23 "strings" 24 ) 25 26 // MultiError allows encapsulating multiple errors under a singular instance, 27 // which is useful when you only want to log on errors, not return early / bubble up. 28 type MultiError []string 29 30 func (e *MultiError) Append(err error) { 31 *e = append(*e, err.Error()) 32 } 33 34 func (e *MultiError) Appendf(format string, args ...any) { 35 *e = append(*e, fmt.Sprintf(format, args...)) 36 } 37 38 // Combine converts this multiError to a singular error instance, returning nil if empty. 39 func (e MultiError) Combine() error { 40 if len(e) == 0 { 41 return nil 42 } 43 return errors.New(`"` + strings.Join(e, `","`) + `"`) 44 }