Annotating F# records with Bond attributes only works when adding the CLIMutable attribute

[ant0nsc]

Serializing/deserializing this record fails:

    [< Bond.Schema >]
    type PlainRecord = 
    {
        [< Bond.Id(0us) >] 
        DoubleImmutable     : float
    }

whereas this one works:

    [< Bond.Schema >]
    [< CLIMutable >]
    type MutableRecord = 
    {
        [< Bond.Id(0us) >] 
        DoubleMutable : float
    }

[jack-pappas]

I think this is by design? The [<CLIMutable>] attribute causes the F# compiler to generate slightly different code for the record (compared to what it'd generate without the attribute); with the attribute, the compiler generates get, set auto-properties for the record fields so they can be set via reflection -- the F# compiler just enforces that you can't call the setters from F# code (so the record remains "immutable" as far as F# code is concerned).

[<CLIMutable>] was introduced to allow F# records to be used with serializers (e.g., Bond) or ORMs, so I don't think this is a Bond-specific issue.

[ant0nsc]

Yes, I'm aware of why that attribute exists. This issue here is more of a reminder to me and @chwarr. A solution to the problem is in code review.

[ncthbrt]

Any update on this @ant0nsc ?

[chwarr]

@ant0nsc is waiting for me to implement F# codegen as part of first-class F# support. This work has been delayed because I need to work on some internal-to-Microsoft systems that use/build Bond. No ETA for when I'll be able to pick F# back up.

[ncthbrt]

Thanks for the update. Good to know it is still on the roadmap however. On 14 Jul 2017 03:27, "Christopher Warrington" <notifications@github.com> wrote: @ant0nsc <https://github.com/ant0nsc> is waiting for me to implement F# codegen as part of first-class F# support. This work has been delayed because I need to work on some internal-to-Microsoft systems that use/build Bond. No ETA for when I'll be able to pick F# back up. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#85 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AISSWcBfV4ZfcyNFJ-gIGD_GUb2VHTZhks5sNsPkgaJpZM4F7CUj> .

[brettrowberry]

Interested in this!

[chwarr]

As of September 2020 and for the foreseeable future, no new languages will be added to Bond by Microsoft.

[brettrowberry]

Thanks @chwarr, should we be moving to protobuf?

[chwarr]

@brettrowberry, I've answered in issue #312, "F# code generation from IDL".