protocols/autonat/src/protocol: Use ResponseStatus::from_i32 #3
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elenaf9
approved these changes
Jan 13, 2022
| status_text, | ||
| addr: Some(addr), | ||
| }) => { | ||
| }) if structs_proto::message::ResponseStatus::from_i32(status) |
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Where does from_i32 come from? It's not from TryFrom<i32>, right?
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Prost generates the following code:
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
#[repr(i32)]
pub enum ResponseStatus {
Ok = 0,
EDialError = 100,
EDialRefused = 101,
EBadRequest = 200,
EInternalError = 300,
}The Enumeration derive macro then generates the from_i32 implementation:
https://docs.rs/prost-derive/latest/src/prost_derive/lib.rs.html#299-304
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Ahh, I didn't know that yet about prost. Thanks for the explanation!
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Would make the
.protofile the single source of truth of the mapping of error codes to their names.