replaceWith utility

[brettz9]

I would like the ability to store schema references and later replace them with a modified schema (e.g., with recursive properties added).

Something like:

var x = z.object({prop1: 'string'});

// Use the object within another
var y = z.array(x);

// Modify the child after the fact
x.replaceWith(x.extend({prop2: z.lazy(() => x)}));

// `x` should now have a recursive `prop2` property accessible within `y`

Is this conceivable?

[brettz9]

One workaround I've found seems to be viable, but I don't know if this would be a recommended approach, tampering with an internal function:

var lazy = z.lazy(() => z.null()); // Placeholder
var x = z.object({prop1: 'string', prop2: lazy});

// Use the object within another
var y = z.array(x);

// Modify the placeholder after the fact
lazy._def.getter = () => x;