| mpagenko | af80163 | 2020-07-03 10:00:42 +0000 | [diff] [blame] | 1 | // Copyright 2018 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // Package flags provides a set of flags controlled by build tags. |
| 6 | package flags |
| 7 | |
| 8 | // ProtoLegacy specifies whether to enable support for legacy functionality |
| 9 | // such as MessageSets, weak fields, and various other obscure behavior |
| 10 | // that is necessary to maintain backwards compatibility with proto1 or |
| 11 | // the pre-release variants of proto2 and proto3. |
| 12 | // |
| 13 | // This is disabled by default unless built with the "protolegacy" tag. |
| 14 | // |
| 15 | // WARNING: The compatibility agreement covers nothing provided by this flag. |
| 16 | // As such, functionality may suddenly be removed or changed at our discretion. |
| 17 | const ProtoLegacy = protoLegacy |
| 18 | |
| 19 | // LazyUnmarshalExtensions specifies whether to lazily unmarshal extensions. |
| 20 | // |
| 21 | // Lazy extension unmarshaling validates the contents of message-valued |
| 22 | // extension fields at unmarshal time, but defers creating the message |
| 23 | // structure until the extension is first accessed. |
| 24 | const LazyUnmarshalExtensions = ProtoLegacy |