as in mapped types + intersection + conditional type = ugliness

[thorn0]

That's quite a combo:

Prettier 2.2.1
Playground link

--parser typescript

Input:

export type EntityPrimaryColumnValueMap<
  Entity extends AnyEntity,
  Deepness extends string = "."
> = FlatTypeHint<
  {
    [
      P in keyof (Entity["columns"] & Entity["embeds"])
      as EntityPrimaryColumnValueMapAsCondition<Entity, P> extends true ? P : never
    ]: P extends keyof Entity["columns"]
      ? ColumnCompileType<Entity, P>
      : P extends keyof Entity["embeds"]
      ? EntityPrimaryColumnValueMap<Entity["embeds"][P], `${Deepness}.`>
      : never
  }
>

Output:

export type EntityPrimaryColumnValueMap<
  Entity extends AnyEntity,
  Deepness extends string = "."
> = FlatTypeHint<
  {
    [P in keyof (Entity["columns"] &
      Entity["embeds"]) as EntityPrimaryColumnValueMapAsCondition<
      Entity,
      P
    > extends true
      ? P
      : never]: P extends keyof Entity["columns"]
      ? ColumnCompileType<Entity, P>
      : P extends keyof Entity["embeds"]
      ? EntityPrimaryColumnValueMap<Entity["embeds"][P], `${Deepness}.`>
      : never;
  }
>;

Originally posted by @pleerock in #10642 (comment)

[texastoland]

Still an issue 🙋🏼