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client-go/cache: support errors.Unwrap for KeyError

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Signed-off-by: Iceber Gu <wei.cai-nat@daocloud.io>

Kubernetes-commit: 85fa121f84ee33bdc8d77e7a35d1f4d2c063c28f
This commit is contained in:
Iceber Gu
2021-04-02 10:17:57 +08:00
committed by Kubernetes Publisher
parent 4e267f6cae
commit fc03592e80
2 changed files with 21 additions and 0 deletions
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5
tools/cache/store.go vendored
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@@ -85,6 +85,11 @@ func (k KeyError) Error() string {
return fmt.Sprintf("couldn't create key for object %+v: %v", k.Obj, k.Err)
}
// Unwrap implements errors.Unwrap
func (k KeyError) Unwrap() error {
return k.Err
}
// ExplicitKey can be passed to MetaNamespaceKeyFunc if you have the key for
// the object but not the object itself.
type ExplicitKey string