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Rework enums in rust. (#6098)

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* Rework enums in rust.

They're now a unit struct, rather than an enum. This is a
backwards incompatible change but the previous version had UB
and was also backwards incompatible so...

* Update and test sample rust flatbuffers

* Use bitflags crate to properly support rust enums.

Previously, the bitflags attribute was just ignored. This is a breaking change
as the bitflgs API is not like a normal rust enum (duh).

* variant_name() -> Option<_>

* repr transparent

* Reexport bitflags from flatbuffers

* Make bitflags constants CamelCase, matching normal enums

* Deprecate c-style associated enum constants

Co-authored-by: Casper Neo <cneo@google.com>
This commit is contained in:
Casper
2020-10-19 11:40:03 -07:00
committed by GitHub
parent a402b3abae
commit 9fa1d27059
13 changed files with 724 additions and 628 deletions
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rust/flatbuffers/Cargo.toml
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@@ -12,3 +12,4 @@ categories = ["encoding", "data-structures", "memory-management"]
[dependencies]
smallvec = "1.0"
bitflags = "1.2"