.pick doesn't typecheck keys and throws Cannot read property '_parse' of undefined

[krivachy]

I've run into this issue when using .pick that the keys are not typechecked that they're actual keys on the source object.

Here's a small example to reproduce this using 3.15.1:

import { z } from 'zod';

const schema = z.object({
  a: z.string(),
  b: z.number(),
});

const pickedSchema = schema.pick({
  a: true,
  doesntExist: true,
});

pickedSchema.parse({
  a: 'value',
});

Results in:

/node_modules/.pnpm/[email protected]/node_modules/zod/lib/types.js:1060
                value: keyValidator._parse(new ParseInputLazyPath(ctx, value, ctx.path, key)),
                                    ^
TypeError: Cannot read property '_parse' of undefined
    at ZodObject._parse (/node_modules/.pnpm/[email protected]/node_modules/zod/lib/types.js:1060:37)
    at ZodObject._parseSync (/node_modules/.pnpm/[email protected]/node_modules/zod/lib/types.js:109:29)
    at ZodObject.safeParse (/node_modules/.pnpm/[email protected]/node_modules/zod/lib/types.js:139:29)
    at ZodObject.parse (/node_modules/.pnpm/[email protected]/node_modules/zod/lib/types.js:120:29)
    at Object.<anonymous> (/zodTest.ts:13:14)
    at Module._compile (internal/modules/cjs/loader.js:1085:14)
    at Module.m._compile (/node_modules/.pnpm/[email protected]_3yjwidxeabsavpmncg7zl6hyk4/node_modules/ts-node/src/index.ts:1455:23)
    at Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
    at Object.require.extensions.<computed> [as .ts] (/node_modules/.pnpm/[email protected]_3yjwidxeabsavpmncg7zl6hyk4/node_modules/ts-node/src/index.ts:1458:12)
    at Module.load (internal/modules/cjs/loader.js:950:32)

[krivachy]

I see it's a duplicate of #895. Is this an issue worth fixing?

[sizzlorox]

I see it's a duplicate of #895. Is this an issue worth fixing?

I've just encountered this exact issue, I believe this is just broken and pick is unusable, Is there any news for a fix? It cant be possible that nobody uses this feature or am I just misunderstand the use of .pick?

[colinhacks]

Good catch, fixed in 3.17.2