congqixia ea4ab9e4a4
Replace ErrorList with multiErrors (#22532)
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
2023-03-03 14:59:49 +08:00

64 lines
1.6 KiB
Go

// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// errutil package provides utility for errors handling.
package errutil
import (
"github.com/cockroachdb/errors"
"github.com/samber/lo"
)
type multiErrors struct {
errs []error
}
func (e multiErrors) Unwrap() error {
if len(e.errs) <= 1 {
return nil
}
return multiErrors{
errs: e.errs[1:],
}
}
func (e multiErrors) Error() string {
final := e.errs[0]
for i := 1; i < len(e.errs); i++ {
final = errors.Wrap(e.errs[i], final.Error())
}
return final.Error()
}
func (e multiErrors) Is(err error) bool {
for _, item := range e.errs {
if errors.Is(item, err) {
return true
}
}
return false
}
func Combine(errs ...error) error {
errs = lo.Filter(errs, func(err error, _ int) bool { return err != nil })
if len(errs) == 0 {
return nil
}
return multiErrors{
errs,
}
}