// Copyright 2017, The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE.md file.

// +build !purego

package cmp

import (

	"reflect"

	"unsafe"

)

const supportAllowUnexported = true

// retrieveUnexportedField uses unsafe to forcibly retrieve any field from

// a struct such that the value has read-write permissions.

//

// The parent struct, v, must be addressable, while f must be a StructField

// describing the field to retrieve.

func retrieveUnexportedField(v reflect.Value, f reflect.StructField) reflect.Value {

	return reflect.NewAt(f.Type, unsafe.Pointer(v.UnsafeAddr()+f.Offset)).Elem()

}