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https://issues.apache.org/jira/browse/THRIFT-2945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15798207#comment-15798207
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ASF GitHub Bot commented on THRIFT-2945:
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Github user allengeorge commented on the issue:

    https://github.com/apache/thrift/pull/1147
  
    @jsgf For structs it's more involved than it appears - perhaps because of 
the way I've chosen to represent them. Here are some factors that cause issues:
    
    1. I represent `required` fields as bare types (i.e. no `Option` wrapper). 
This means that if the user doesn't specify them in the IDL const declaration 
then `rustc` will fail.
    2. I'm not sure how to handle a case where a user specifies a single struct 
field in the IDL const declaration but ignores the others. I *could* 
conceivably use ".." but (see below)
    3. I currently don't implement a `Defaults` trait for structs. Even if I 
did generate one, I'd only do it for structs with all optional or 
opt-in-req-out fields


> Implement support for Rust language
> -----------------------------------
>
>                 Key: THRIFT-2945
>                 URL: https://issues.apache.org/jira/browse/THRIFT-2945
>             Project: Thrift
>          Issue Type: New Feature
>          Components: Wish List
>            Reporter: Maksim Golov
>            Assignee: Jeremy Fitzhardinge
>
> Work on implementing support for Rust is in progress: 
> https://github.com/maximg/thrift by Simon GĂ©nier and myself.
> It will probably take quite some time to complete. Please keep us updated if 
> there are changes related to our work.



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