unison/records.md at 994b3e512b4cb3fec76738edb3b3a8542a41cdc1

mirror of https://github.com/unisonweb/unison.git synced 2024-09-21 07:17:25 +03:00

(issue) transcript of issue with record types and user types

If a record type has a field that is a user-defined type, `view` no
longer treats the type as a record type. This becomes a big pain because
if you want to `edit` the type you have to search around for the proper
name and order of the fields to recreate what the record type definition
should look like.

**Note**: this is really more of an issue than a PR. I've added a
failing test case in a transcript but not a fix for the issue.

2023-06-14 13:03:14 -04:00

1.3 KiB

Raw Blame History

Ensure that Records keep their syntax after being added to the codebase

.> builtins.mergeio
.> load unison-src/transcripts-using-base/base.u

Record with 1 field

unique type Record1 = { a : Text }

.> add

.> view Record1

Record with 2 fields

unique type Record2 = { a : Text, b : Int }

.> add

.> view Record2

Record with 3 fields

unique type Record3 = { a : Text, b : Int, c : Nat }

.> add

.> view Record3

Record with many fields

unique type Record4 = 
  { a : Text
  , b : Int
  , c : Nat
  , d : Bytes
  , e : Text
  , f : Nat
  , g : [Nat]
  }

.> add

.> view Record4

Record with user-defined type fields

This record type has two fields whose types are user-defined (Record4 and UserType).

unique type UserType = UserType Nat

unique type RecordWithUserType = { a : Text, b : Record4, c : UserType }

.> add

If you view or edit it, it should be treated as a record type, but it does not (which is a bug)

.> view RecordWithUserType

Syntax

Trailing commas are allowed.

unique type Record5 = 
  { a : Text, 
    b : Int,
  }

1.3 KiB Raw Blame History