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
|
//go:build go1.13
// +build go1.13
package errors
import (
baseErrors "errors"
)
// As finds the first error in err's tree that matches target, and if one is found, sets
// target to that error value and returns true. Otherwise, it returns false.
//
// For more information see stdlib errors.As.
func As(err error, target interface{}) bool {
return baseErrors.As(err, target)
}
// Is detects whether the error is equal to a given error. Errors
// are considered equal by this function if they are matched by errors.Is
// or if their contained errors are matched through errors.Is.
func Is(e error, original error) bool {
if baseErrors.Is(e, original) {
return true
}
if e, ok := e.(*Error); ok {
return Is(e.Err, original)
}
if original, ok := original.(*Error); ok {
return Is(e, original.Err)
}
return false
}
|
