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Support Field Presence (proto3) #513

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Tracked by #518
theduke opened this issue Jul 25, 2020 · 2 comments
Closed
Tracked by #518

Support Field Presence (proto3) #513

theduke opened this issue Jul 25, 2020 · 2 comments
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rust-protobuf-v3 Issued to be fixed to release version 3

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@theduke
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theduke commented Jul 25, 2020

Field presence is a new experimental feature that adds support for optional fields.

TLDR: it works in a somewhat hacky way by representing an optional field with a oneOf with only one variant.

https://github.com/protocolbuffers/protobuf/blob/master/docs/implementing_proto3_presence.md#satisfying-the-experimental-check
@stepancheg stepancheg mentioned this issue Aug 12, 2020
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@stepancheg stepancheg added the rust-protobuf-v3 Issued to be fixed to release version 3 label Aug 12, 2020
@marcmo marcmo mentioned this issue Aug 26, 2020
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stepancheg added a commit that referenced this issue Sep 28, 2020
@stepancheg
Run tests with --experimental_allow_proto3_optional option
253fee8 
This is a preparation to implement #513
@stepancheg
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stepancheg commented Apr 4, 2022 •
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Implemented in version 3.0.0-alpha.9.

@theduke
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theduke commented Apr 6, 2022

Awesome, thanks!

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