blob: 264b0eac0ddcf613a5df496283c3b47ec2b8c7f3 [file] [log] [blame]
Scott Bakerf579f132019-10-24 14:31:41 -07001// Copyright (c) 2019 Uber Technologies, Inc.
2//
3// Permission is hereby granted, free of charge, to any person obtaining a copy
4// of this software and associated documentation files (the "Software"), to deal
5// in the Software without restriction, including without limitation the rights
6// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7// copies of the Software, and to permit persons to whom the Software is
8// furnished to do so, subject to the following conditions:
9//
10// The above copyright notice and this permission notice shall be included in
11// all copies or substantial portions of the Software.
12//
13// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19// THE SOFTWARE.
20
21// +build go1.13
22
23package multierr
24
25import "errors"
26
27// As attempts to find the first error in the error list that matches the type
28// of the value that target points to.
29//
30// This function allows errors.As to traverse the values stored on the
31// multierr error.
32func (merr *multiError) As(target interface{}) bool {
33 for _, err := range merr.Errors() {
34 if errors.As(err, target) {
35 return true
36 }
37 }
38 return false
39}
40
41// Is attempts to match the provided error against errors in the error list.
42//
43// This function allows errors.Is to traverse the values stored on the
44// multierr error.
45func (merr *multiError) Is(target error) bool {
46 for _, err := range merr.Errors() {
47 if errors.Is(err, target) {
48 return true
49 }
50 }
51 return false
52}