github.com/zntrio/harp/v2@v2.0.9/pkg/sdk/types/null.go (about)

     1  // Licensed to Elasticsearch B.V. under one or more contributor
     2  // license agreements. See the NOTICE file distributed with
     3  // this work for additional information regarding copyright
     4  // ownership. Elasticsearch B.V. licenses this file to you under
     5  // the Apache License, Version 2.0 (the "License"); you may
     6  // not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing,
    12  // software distributed under the License is distributed on an
    13  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    14  // KIND, either express or implied.  See the License for the
    15  // specific language governing permissions and limitations
    16  // under the License.
    17  
    18  package types
    19  
    20  import "reflect"
    21  
    22  // IsNil returns true if given object is nil.
    23  func IsNil(c interface{}) bool {
    24  	return c == nil ||
    25  		(reflect.ValueOf(c).Kind() == reflect.Ptr && reflect.ValueOf(c).IsNil()) ||
    26  		(reflect.ValueOf(c).Kind() == reflect.Func && reflect.ValueOf(c).IsNil())
    27  }