| // 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 !appengine,!js |
| |
| package cmp |
| |
| import ( |
| "reflect" |
| "unsafe" |
| ) |
| |
| const supportAllowUnexported = true |
| |
| // unsafeRetrieveField 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 unsafeRetrieveField(v reflect.Value, f reflect.StructField) reflect.Value { |
| return reflect.NewAt(f.Type, unsafe.Pointer(v.UnsafeAddr()+f.Offset)).Elem() |
| } |
