dragonfly/pkg/util/ifaceutils/interface_utils.go

43 lines
1.0 KiB
Go

/*
* Copyright 2020 The Dragonfly 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 ifaceutils
import (
"reflect"
)
func IsNil(value interface{}) bool {
if value == nil {
return true
}
switch v := reflect.ValueOf(value); v.Kind() {
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.UnsafePointer, reflect.Slice:
return v.IsNil()
}
return false
}
func IsZero(value interface{}) bool {
if value == nil {
return true
}
return reflect.ValueOf(value).IsZero()
}