mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-25 07:40:19 +00:00
35 lines
1.1 KiB
Go
35 lines
1.1 KiB
Go
|
//go:build go1.18
|
||
|
|
// +build go1.18
|
||
|
|
|
||
|
|
/*
|
||
|
|
Copyright 2023 The Kubernetes Authors.
|
||
|
|
|
||
|
|
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 klog
|
||
|
|
|
||
|
|
// SafePtr is a function that takes a pointer of any type (T) as an argument.
|
||
|
|
// If the provided pointer is not nil, it returns the same pointer. If it is nil, it returns nil instead.
|
||
|
|
//
|
||
|
|
// This function is particularly useful to prevent nil pointer dereferencing when:
|
||
|
|
//
|
||
|
|
// - The type implements interfaces that are called by the logger, such as `fmt.Stringer`.
|
||
|
|
// - And these interface implementations do not perform nil checks themselves.
|
||
|
|
func SafePtr[T any](p *T) any {
|
||
|
|
if p == nil {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
return p
|
||
|
|
}
|