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23 lines
689 B
Go
23 lines
689 B
Go
// Copyright 2017, The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE.md file.
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// +build !purego,!appengine,!js
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package cmp
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import (
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"reflect"
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"unsafe"
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)
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const supportAllowUnexported = true
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// unsafeRetrieveField uses unsafe to forcibly retrieve any field from a struct
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// such that the value has read-write permissions.
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//
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// The parent struct, v, must be addressable, while f must be a StructField
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// describing the field to retrieve.
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func unsafeRetrieveField(v reflect.Value, f reflect.StructField) reflect.Value {
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return reflect.NewAt(f.Type, unsafe.Pointer(v.UnsafeAddr()+f.Offset)).Elem()
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}
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