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multi_errors.go
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multi_errors.go
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//
// Copyright 2022 IBM Corporation
//
// Licensed 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.
//
package util
import (
"strings"
)
// MultiErr is a multiple error slice
type MultiErr struct {
Errors []string
}
// Error is the error message
func (mer *MultiErr) Error() string {
if len(mer.Errors) == 0 {
return "no error occurred"
}
var sb strings.Builder
sb.WriteString("the following errors occurred:")
for _, errMessage := range mer.Errors {
sb.WriteString("\n - " + errMessage)
}
return sb.String()
}
// Add appends error message
func (mer *MultiErr) Add(err error) {
if mer.Errors == nil {
mer.Errors = []string{}
}
mer.Errors = append(mer.Errors, err.Error())
}