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c06ec45f09
These exist so we can use the optimized MapIter APIs while still working with released versions of Go. They're pretty simple, but some docs won't hurt. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
28 lines
867 B
Go
28 lines
867 B
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, scratch reflect.Value) reflect.Value {
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iter.SetKey(scratch)
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return scratch
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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, scratch reflect.Value) reflect.Value {
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iter.SetValue(scratch)
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return scratch
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}
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