77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
/*
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Copyright 2018 The KubeSphere Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package reflectutils
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import (
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"fmt"
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"reflect"
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"unsafe"
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)
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func In(value interface{}, container interface{}) bool {
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containerValue := reflect.ValueOf(container)
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switch reflect.TypeOf(container).Kind() {
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case reflect.Slice, reflect.Array:
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for i := 0; i < containerValue.Len(); i++ {
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if containerValue.Index(i).Interface() == value {
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return true
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}
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}
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case reflect.Map:
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if containerValue.MapIndex(reflect.ValueOf(value)).IsValid() {
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return true
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}
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default:
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return false
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}
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return false
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}
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func Override(left interface{}, right interface{}) {
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if reflect.ValueOf(left).IsNil() || reflect.ValueOf(right).IsNil() {
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return
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}
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if reflect.ValueOf(left).Type().Kind() != reflect.Ptr ||
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reflect.ValueOf(right).Type().Kind() != reflect.Ptr ||
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reflect.ValueOf(left).Kind() != reflect.ValueOf(right).Kind() {
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return
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}
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oldVal := reflect.ValueOf(left).Elem()
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newVal := reflect.ValueOf(right).Elem()
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for i := 0; i < oldVal.NumField(); i++ {
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val := newVal.Field(i).Interface()
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if !reflect.DeepEqual(val, reflect.Zero(reflect.TypeOf(val)).Interface()) {
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oldVal.Field(i).Set(reflect.ValueOf(val))
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}
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}
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}
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func SetUnExportedField(ptr interface{}, filedName string, newFiledValue interface{}) (err error) {
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v := reflect.ValueOf(ptr).Elem().FieldByName(filedName)
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v = reflect.NewAt(v.Type(), unsafe.Pointer(v.UnsafeAddr())).Elem()
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nv := reflect.ValueOf(newFiledValue)
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if v.Kind() != nv.Kind() {
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return fmt.Errorf("kind error")
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}
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v.Set(nv)
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return nil
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}
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