Intersection/Union Validation Errors

I'm a bit confused around how errors are calculated when validating objects using types involving intersections/unions.

For example, given the following

const base = type({name:'string'})
const union = type({a:"1", 'b?':"2"}).or({a:"'a'", 'b?':"'b'", 'c?':"'c'"})
const validator = base.and(union);
const res = validator({});

const base = type({name:'string'})
const union = type({a:"1", 'b?':"2"}).or({a:"'a'", 'b?':"'b'", 'c?':"'c'"})
const validator = base.and(union);
const res = validator({});

I would expect

res

res

to contain errors on both

name

name

and

since they are the common required fields, but instead I only get an error reported on

. Is this because ArkType (or TS?) needs to have a fully resolved(?) type before it can validate all fields?

arktype•14mo ago•

10 replies

dibbo

Intersection/Union Validation Errors

I'm a bit confused around how errors are calculated when validating objects using types involving intersections/unions.

For example, given the following

const base = type({name:'string'})
const union = type({a:"1", 'b?':"2"}).or({a:"'a'", 'b?':"'b'", 'c?':"'c'"})
const validator = base.and(union);
const res = validator({});

const base = type({name:'string'})
const union = type({a:"1", 'b?':"2"}).or({a:"'a'", 'b?':"'b'", 'c?':"'c'"})
const validator = base.and(union);
const res = validator({});

I would expect

res

res

to contain errors on both

name

name

and

since they are the common required fields, but instead I only get an error reported on

. Is this because ArkType (or TS?) needs to have a fully resolved(?) type before it can validate all fields?

Intersection/Union Validation Errors

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