2021-08-12 21:03:24 +02:00
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// Copyright 2018 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 file.
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// Package flags provides a set of flags controlled by build tags.
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package flags
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// ProtoLegacy specifies whether to enable support for legacy functionality
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2025-03-10 09:23:45 +00:00
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// such as MessageSets, and various other obscure behavior
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2021-08-12 21:03:24 +02:00
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// that is necessary to maintain backwards compatibility with proto1 or
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// the pre-release variants of proto2 and proto3.
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//
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// This is disabled by default unless built with the "protolegacy" tag.
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//
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// WARNING: The compatibility agreement covers nothing provided by this flag.
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// As such, functionality may suddenly be removed or changed at our discretion.
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const ProtoLegacy = protoLegacy
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// LazyUnmarshalExtensions specifies whether to lazily unmarshal extensions.
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//
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// Lazy extension unmarshaling validates the contents of message-valued
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// extension fields at unmarshal time, but defers creating the message
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// structure until the extension is first accessed.
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const LazyUnmarshalExtensions = ProtoLegacy
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