Comparing ReScript's behavior to Prettier's, Prettier is consistent for types and values, but ReScript is not.

My proposal is tostandardize on Prettier's behavior, also because it seems to follow user intention better. If the user put the first record field on a separate line, we may assume that they intend to keep the formatting multiline and/or add more fields later.

Prettier

Types

typeX={a:number};typeY={a:number};typeZ={a:number};

reformats to

typeX={a:number};typeY={a:number};typeZ={a:number;};

Values

letx={a:2};letx={a:2,};letx={a:2,};

reformats to

letx={a:2};letx={a:2};letx={a:2,};

ReScript

Types

typex= {a:int}typey= {a:int}typez= {a:int,}

reformats to

type x = {a: int}type y = {a: int}type z = {a: int}

Values

letx= {a:2}letx= {a:2}letx= {a:2}

reformats to

let x = {a: 2}let x = {  a: 2,}let x = {  a: 2,}