feat: add $UrlLike

Author: joshunrau

src/__tests__/zod.test.ts

@@ -3,7 +3,7 @@ import * as module from 'node:module';
 import { describe, expect, it } from 'vitest';
 import { z } from 'zod';
 
-import { $BooleanLike, $NumberLike, isZodType } from '../zod.js';
+import { $BooleanLike, $NumberLike, $UrlLike, isZodType } from '../zod.js';
 
 const require = module.createRequire(import.meta.url);
 
@@ -71,3 +71,16 @@ describe('$NumberLike', () => {
     expect($IntLike.safeParse('1').data).toBe(1);
   });
 });
+
+describe('$UrlLike', () => {
+  it('should parse a url', () => {
+    const result = $UrlLike.safeParse(new URL('https://opendatacapture.org'));
+    expect(result.success).toBe(true);
+    expect(result.data).toBeInstanceOf(URL);
+  });
+  it('should parse a url string', () => {
+    const result = $UrlLike.safeParse('https://opendatacapture.org');
+    expect(result.success).toBe(true);
+    expect(result.data).toBeInstanceOf(URL);
+  });
+});

src/zod.ts

@@ -29,3 +29,16 @@ export const $NumberLike: z.ZodType<number, z.ZodTypeDef, any> = z.preprocess((a
   }
   return arg;
 }, z.number());
+
+export const $UrlLike: z.ZodType<URL, z.ZodTypeDef, any> = z.preprocess(
+  (arg) => {
+    if (arg instanceof URL) {
+      return arg.href;
+    }
+    return arg;
+  },
+  z
+    .string()
+    .url()
+    .transform((arg) => new URL(arg))
+);