The record generator for anonymous records.

[Krzysztof-Cieslak]

Sample code:

let x () : {| A: int; B: string  |} = 
    {| A = 123 |}

The error message on the second line: Two anonymous record types have mismatched sets of field names '["A"; "B"]' and '["A"]'. Having info present in error message we should be able to generate stub for missing fields just like in case of normal records

[Angr1st]

I would like to tackle this. Do you know where the stub for the missing fields for regular records is created?

[baronfel]

The current record stub generation code is found src/FsAutoComplete.Core/RecordStubGenerator.fs, and the place it's called is the GetRecordStub member in src/FsAutoComplete.Core/Commands.fs. My guess is that shouldGenerateRecordStub needs to be updated to apply to anon records with 'missing' fields, and formatRecord would need to be updated as well.

[Angr1st]

Is there a Tool or Documentation to visualize the AST of F# Source Code to improve my understanding of the differences between a RecordExpression and an AnonRecordExpression?

[baronfel]

Yep! There's a good one over at https://jindraivanek.gitlab.io/ast-viewer, and a slightly-less good one at sharplab.io.