/
comparison.go
35 lines (33 loc) · 1.15 KB
/
comparison.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// 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 errors
// Resemble returns true iff the given errors resemble, meaning that the Code,
// Namespace and Name of the errors are equal. A nil error only resembles nil.
// Invalid errors or definitions (including typed nil) never resemble anything.
func Resemble(a, b error) bool {
if a == nil && b == nil {
return true
}
ttnA, ok := From(a)
if !ok {
return false
}
ttnB, ok := From(b)
if !ok {
return false
}
return ttnA.Code() == ttnB.Code() &&
ttnA.Namespace() == ttnB.Namespace() &&
ttnA.Name() == ttnB.Name()
}