Is it possible to add support for literal types and discriminated unions?

[colinhacks]

Is it possible to add support for literal types and discriminated unions?

[colinhacks]

Just added literal support in [email protected]:

const hi = z.literal("hi");
hi.parse("sup") // fails

A literal can be a string, number, or boolean:

const hi = z.literal("hi");
const twelve = z.literal(12);
const nope = z.literal(false);

And this all works as expected:

const CellText = z.object({
  kind: z.literal('text'),
  body: z.string(),
});

const CellCode = z.object({
  kind: z.literal('code'),
  code: z.string(),
});

const Schema = z.array(
  z.object({
    category: z.string(),
    cells: z.array(z.union([CellText, CellCode])).nonempty(),
  }),
);

const y:any = "doesnotmatter";
if(Schema.is(y)){
  y[0].cells[0].kind; // => "text" | "code"
}

[1st1]

Awesome! Thanks!