zod
Version:
TypeScript-first schema declaration and validation library with static type inference
61 lines (60 loc) • 2.4 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const vitest_1 = require("vitest");
const z = __importStar(require("zod/v4"));
(0, vitest_1.test)("branded types", () => {
const mySchema = z
.object({
name: z.string(),
})
.brand();
(0, vitest_1.expectTypeOf)().toEqualTypeOf();
const doStuff = (arg) => arg;
doStuff(mySchema.parse({ name: "hello there" }));
// inheritance
const extendedSchema = mySchema.brand();
(0, vitest_1.expectTypeOf)().toEqualTypeOf();
doStuff(extendedSchema.parse({ name: "hello again" }));
// number branding
const numberSchema = z.number().brand();
(0, vitest_1.expectTypeOf)().toEqualTypeOf();
// symbol branding
const MyBrand = Symbol("hello");
const symbolBrand = z.number().brand().brand();
// number & { [z.BRAND]: { sup: true, [MyBrand]: true } }
(0, vitest_1.expectTypeOf)().toEqualTypeOf();
// keeping brands out of input types
const age = z.number().brand();
(0, vitest_1.expectTypeOf)().not.toEqualTypeOf();
(0, vitest_1.expectTypeOf)().toEqualTypeOf();
(0, vitest_1.expectTypeOf)().toEqualTypeOf();
// @ts-expect-error
doStuff({ name: "hello there!" });
});
(0, vitest_1.test)("$branded", () => {
const a = z.string().brand();
(0, vitest_1.expectTypeOf)().toEqualTypeOf();
});