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38 lines
1.2 KiB
Go
38 lines
1.2 KiB
Go
// Copyright (c) 2021 Tailscale Inc & 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 file.
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// +build !tailscale_go
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package deephash
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import "reflect"
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// iterKey returns the current iter key.
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// scratch is a re-usable reflect.Value.
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// iterKey may store the iter key in scratch and return scratch,
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// or it may allocate and return a new reflect.Value.
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func iterKey(iter *reflect.MapIter, _ reflect.Value) reflect.Value {
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return iter.Key()
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}
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// iterVal returns the current iter val.
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// scratch is a re-usable reflect.Value.
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// iterVal may store the iter val in scratch and return scratch,
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// or it may allocate and return a new reflect.Value.
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func iterVal(iter *reflect.MapIter, _ reflect.Value) reflect.Value {
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return iter.Value()
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}
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// mapIter returns a map iterator for mapVal.
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// scratch is a re-usable reflect.MapIter.
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// mapIter may re-use scratch and return it,
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// or it may allocate and return a new *reflect.MapIter.
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// If mapVal is the zero reflect.Value, mapIter may return nil.
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func mapIter(_ *reflect.MapIter, mapVal reflect.Value) *reflect.MapIter {
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if !mapVal.IsValid() {
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return nil
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}
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return mapVal.MapRange()
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}
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