37 lines
1.6 KiB
JavaScript
37 lines
1.6 KiB
JavaScript
import { clone, mergeDefs } from "../core/util.js";
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import { visit } from "../core/visit.js";
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import * as schemas from "./schemas.js";
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/** See `classic/in-out.ts`. */
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function withChecks(side, checks) {
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if (!checks?.length)
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return side;
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const def = side._zod.def;
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return clone(side, mergeDefs(def, { checks: [...(def.checks ?? []), ...checks] }), { parent: true });
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}
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/** See `classic/in-out.ts`. */
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function outSide(def) {
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return withChecks(def.out, def.checks);
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}
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/** See `classic/in-out.ts`. */
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function inSide(def) {
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return def.in._zod.traits.has("$ZodTransform") ? outSide(def) : def.in;
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}
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/** See `classic/in-out.ts`. */
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export function input(schema) {
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return visit(schema, {
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pipe: (s) => inSide(s._zod.def),
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// A default value belongs to the output side, so a rewritten inner type leaves it stranded. `.default()` widens the declared input type with `undefined`, and `optional` is what carries that across.
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default: (s, rewritten) => (rewritten ? schemas.optional(s._zod.def.innerType) : s),
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// A catch value is output-side too, but `.catch()` leaves the declared input type alone, so the inner schema stands on its own.
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catch: (s, rewritten) => (rewritten ? s._zod.def.innerType : s),
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});
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}
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/** See `classic/in-out.ts`. */
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export function output(schema) {
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return visit(schema, {
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pipe: (s) => outSide(s._zod.def),
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// A prefault value is fed through the schema, which makes it input-side, so a rewritten inner type leaves it stranded.
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prefault: (s, rewritten) => (rewritten ? s._zod.def.innerType : s),
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});
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}
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