testutil_unsafe.go

// Copyright 2020 The gVisor 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 testutil

import (
	"reflect"
	"unsafe"
)

// unsafeExposeUnexportedFields takes a Value and returns a version of it in
// which even unexported fields can be read and written.
func unsafeExposeUnexportedFields(a reflect.Value) reflect.Value {
	return reflect.NewAt(a.Type(), unsafe.Pointer(a.UnsafeAddr())).Elem()
}