k3s/vendor/github.com/google/go-cmp/cmp/export_unsafe.go

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// 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.
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// +build !purego
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package cmp
import (
"reflect"
"unsafe"
)
const supportAllowUnexported = true
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// retrieveUnexportedField uses unsafe to forcibly retrieve any field from
// a struct such that the value has read-write permissions.
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//
// The parent struct, v, must be addressable, while f must be a StructField
// describing the field to retrieve.
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func retrieveUnexportedField(v reflect.Value, f reflect.StructField) reflect.Value {
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return reflect.NewAt(f.Type, unsafe.Pointer(v.UnsafeAddr()+f.Offset)).Elem()
}