`Thoth.Json.Net` cannot find Union case

[MangelMaxime]

Issue by matthid
Thursday Oct 24, 2019 at 13:45 GMT
Originally opened as MangelMaxime/Thoth#175

---

open Fable.Core
open Thoth.Json.Net

[<StringEnum>]
type Test = 
 | Test1
 | TEST2

[<EntryPoint>]
let main argv =

    let t = TEST2
    printfn "%A" t
    let json = (Encode.Auto.toString(0, t))
    printfn "json %A" json
    let t2 : Test = Decode.Auto.unsafeFromString(json)
    printfn "res %A" t2

    0 // return an integer exit code

[MangelMaxime]

Comment by matthid
Thursday Oct 24, 2019 at 13:48 GMT

---

Interestingly not even Test1 works. Do I use it wrong?

[MangelMaxime]

Comment by MangelMaxime
Thursday Oct 24, 2019 at 13:50 GMT

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Before your second message, I would have said it's due to how Fable works:

open Fable.Core
open Fable.Core.JsInterop

[<StringEnum>]
type Test = 
    | Test1
    | TEST2
    | [<CompiledName("TEST3")>] TEST3

JS.console.log(Test.Test1)
JS.console.log(Test.TEST2)
JS.console.log(Test.TEST3)

Output:

test1
tEST2
TEST3

[MangelMaxime]

Comment by matthid
Thursday Oct 24, 2019 at 13:56 GMT

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Ok as discussed in gitter this is mainly due to [<StringEnum>]

[MangelMaxime]

Comment by MangelMaxime
Thursday Oct 24, 2019 at 14:07 GMT

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Just so I remember, it's due to [<StringEnum>] but still show that converting back and forth doesn't work on special cases. I need to cover them.