// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"). You may
// not use this file except in compliance with the License. A copy of the
// License is located at
//
//	http://aws.amazon.com/apache2.0/
//
// or in the "license" file accompanying this file. This file 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 utils

import "reflect"

func ZeroOrNil(obj interface{}) bool {
	value := reflect.ValueOf(obj)
	if !value.IsValid() {
		return true
	}
	if obj == nil {
		return true
	}
	switch value.Kind() {
	case reflect.Slice, reflect.Array, reflect.Map:
		return value.Len() == 0
	}
	zero := reflect.Zero(reflect.TypeOf(obj))
	if !value.Type().Comparable() {
		return false
	}
	if obj == zero.Interface() {
		return true
	}
	return false
}