agsamantha/node_modules/openai/_vendor/zod-to-json-schema/parsers/union.mjs
2024-10-02 15:15:21 -05:00

73 lines
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3 KiB
JavaScript

import { parseDef } from "../parseDef.mjs";
export const primitiveMappings = {
ZodString: 'string',
ZodNumber: 'number',
ZodBigInt: 'integer',
ZodBoolean: 'boolean',
ZodNull: 'null',
};
export function parseUnionDef(def, refs) {
if (refs.target === 'openApi3')
return asAnyOf(def, refs);
const options = def.options instanceof Map ? Array.from(def.options.values()) : def.options;
// This blocks tries to look ahead a bit to produce nicer looking schemas with type array instead of anyOf.
if (options.every((x) => x._def.typeName in primitiveMappings && (!x._def.checks || !x._def.checks.length))) {
// all types in union are primitive and lack checks, so might as well squash into {type: [...]}
const types = options.reduce((types, x) => {
const type = primitiveMappings[x._def.typeName]; //Can be safely casted due to row 43
return type && !types.includes(type) ? [...types, type] : types;
}, []);
return {
type: types.length > 1 ? types : types[0],
};
}
else if (options.every((x) => x._def.typeName === 'ZodLiteral' && !x.description)) {
// all options literals
const types = options.reduce((acc, x) => {
const type = typeof x._def.value;
switch (type) {
case 'string':
case 'number':
case 'boolean':
return [...acc, type];
case 'bigint':
return [...acc, 'integer'];
case 'object':
if (x._def.value === null)
return [...acc, 'null'];
case 'symbol':
case 'undefined':
case 'function':
default:
return acc;
}
}, []);
if (types.length === options.length) {
// all the literals are primitive, as far as null can be considered primitive
const uniqueTypes = types.filter((x, i, a) => a.indexOf(x) === i);
return {
type: uniqueTypes.length > 1 ? uniqueTypes : uniqueTypes[0],
enum: options.reduce((acc, x) => {
return acc.includes(x._def.value) ? acc : [...acc, x._def.value];
}, []),
};
}
}
else if (options.every((x) => x._def.typeName === 'ZodEnum')) {
return {
type: 'string',
enum: options.reduce((acc, x) => [...acc, ...x._def.values.filter((x) => !acc.includes(x))], []),
};
}
return asAnyOf(def, refs);
}
const asAnyOf = (def, refs) => {
const anyOf = (def.options instanceof Map ? Array.from(def.options.values()) : def.options)
.map((x, i) => parseDef(x._def, {
...refs,
currentPath: [...refs.currentPath, 'anyOf', `${i}`],
}))
.filter((x) => !!x && (!refs.strictUnions || (typeof x === 'object' && Object.keys(x).length > 0)));
return anyOf.length ? { anyOf } : undefined;
};
//# sourceMappingURL=union.mjs.map