Merge branch 'master' of github.com:vriad/zod

README.md

@@ -35,6 +35,7 @@
     - [.merge](#merge)
     - [.pick/.omit](#pickomit)
     - [.partial](#partial)
+    - [.partialBy](#partialBy)
     - [.deepPartial](#deepPartial)
     - [.passthrough](#passthrough)
     - [.strict](#strict)
@@ -242,7 +243,7 @@ const User = z.object({
   username: z.string(),
 });
 
-User.parse({ username: string });
+User.parse({ username: "Ludwig" });
 
 // extract the inferred type
 type User = z.infer<typeof User>;
@@ -343,6 +344,8 @@ z.number().positive(); //     > 0
 z.number().nonnegative(); //  >= 0
 z.number().negative(); //     < 0
 z.number().nonpositive(); //  <= 0
+
+z.number().multipleOf(5); // Evenly divisible by 5. Alias .step(5)
 ```
 
 Optionally, you can pass in a second argument to provide a custom error message.
@@ -454,6 +457,34 @@ const partialUser = user.partial();
 // { username?: string | undefined }
 ```
 
+### `.partialBy`
+
+All Zod object schemas have a `.partialBy` method which returns a modified version with the specified properties optional.
+
+Starting from this object:
+
+```ts
+const Recipe = z.object({
+  id: z.string(),
+  name: z.string(),
+  ingredients: z.array(z.string()),
+});
+```
+
+To make certain keys optional:
+
+```ts
+const OptionalName = Recipe.partialBy({ name: true });
+type OptionalName = z.infer<typeof OptionalName>;
+/* 
+{
+  id: string,
+  name?: string | undefined, 
+  ingredients: string[]
+}
+*/
+```
+
 ### `.deepPartial`
 
 The `.partial` method is shallow — it only applies one level deep. There is also a "deep" version:

README_ZH.md

@@ -351,6 +351,8 @@ z.number().positive(); //     > 0
 z.number().nonnegative(); //  >= 0
 z.number().negative(); //     < 0
 z.number().nonpositive(); //  <= 0
+
+z.number().multipleOf(5); // x % 5 === 0
 ```
 
 你可以选择传入第二个参数来提供一个自定义的错误信息。

deno/lib/ZodError.ts

@@ -14,6 +14,7 @@ export const ZodIssueCode = util.arrayToEnum([
   "too_small",
   "too_big",
   "invalid_intersection_types",
+  "not_multiple_of",
 ]);
 
 export type ZodIssueCode = keyof typeof ZodIssueCode;
@@ -84,6 +85,11 @@ export interface ZodInvalidIntersectionTypesIssue extends ZodIssueBase {
   code: typeof ZodIssueCode.invalid_intersection_types;
 }
 
+export interface ZodNotMultipleOfIssue extends ZodIssueBase {
+  code: typeof ZodIssueCode.not_multiple_of;
+  multipleOf: number;
+}
+
 export interface ZodCustomIssue extends ZodIssueBase {
   code: typeof ZodIssueCode.custom;
   params?: { [k: string]: any };
@@ -103,6 +109,7 @@ export type ZodIssueOptionalMessage =
   | ZodTooSmallIssue
   | ZodTooBigIssue
   | ZodInvalidIntersectionTypesIssue
+  | ZodNotMultipleOfIssue
   | ZodCustomIssue;
 
 export type ZodIssue = ZodIssueOptionalMessage & { message: string };
@@ -326,6 +333,9 @@ export const defaultErrorMap = (
     case ZodIssueCode.invalid_intersection_types:
       message = `Intersection results could not be merged`;
       break;
+    case ZodIssueCode.not_multiple_of:
+      message = `Should be multiple of ${error.multipleOf}`;
+      break;
     default:
       message = _ctx.defaultError;
       util.assertNever(error);

deno/lib/__tests__/number.test.ts

@@ -9,13 +9,17 @@ const gteFive = z.number().gte(5);
 const ltFive = z.number().lt(5);
 const lteFive = z.number().lte(5);
 const intNum = z.number().int();
+const multipleOfFive = z.number().multipleOf(5);
+const stepSixPointFour = z.number().step(6.4);
 
 test("passing validations", () => {
   gtFive.parse(6);
   gteFive.parse(5);
   ltFive.parse(4);
   lteFive.parse(5);
   intNum.parse(4);
+  multipleOfFive.parse(15);
+  stepSixPointFour.parse(12.8);
 });
 
 test("failing validations", () => {
@@ -24,6 +28,8 @@ test("failing validations", () => {
   expect(() => gtFive.parse(5)).toThrow();
   expect(() => gteFive.parse(4)).toThrow();
   expect(() => intNum.parse(3.14)).toThrow();
+  expect(() => multipleOfFive.parse(14.9)).toThrow();
+  expect(() => stepSixPointFour.parse(6.41)).toThrow();
 });
 
 test("parse NaN", () => {

deno/lib/__tests__/partialBy.test.ts

@@ -0,0 +1,43 @@
+// @ts-ignore TS6133
+import { expect } from "https://deno.land/x/expect@v0.2.6/mod.ts";
+const test = Deno.test;
+
+import { util } from "../helpers/util.ts";
+import * as z from "../index.ts";
+
+const fish = z.object({
+  name: z.string(),
+  age: z.number(),
+  nested: z.object({}),
+});
+
+test("partial by type inference", () => {
+  const optionalNameFish = fish.partialBy({ name: true });
+  type optionalNameFish = z.infer<typeof optionalNameFish>;
+  const f1: util.AssertEqual<
+    optionalNameFish,
+    { name?: string | undefined; age: number; nested: {} }
+  > = true;
+  f1;
+});
+
+test("partial by parse - success", () => {
+  const nameOptionalFish = fish.partialBy({ name: true });
+  nameOptionalFish.parse({ age: 0, nested: {} });
+});
+
+test("partial by parse - fail", () => {
+  fish.partialBy({ name: true, age: true }).parse({ nested: {} } as any);
+  fish
+    .partialBy({ name: true })
+    .parse({ name: "bob", age: 12, nested: {} } as any);
+  fish.partialBy({ name: true }).parse({ age: 12, nested: {} } as any);
+
+  const nameOptionalFish = fish.partialBy({ name: true });
+  const bad1 = () =>
+    nameOptionalFish.parse({ name: 12, age: 12, nested: {} } as any);
+  const bad2 = () => nameOptionalFish.parse({ age: 12 } as any);
+
+  expect(bad1).toThrow();
+  expect(bad2).toThrow();
+});

deno/lib/types.ts

@@ -557,7 +557,8 @@ export class ZodString extends ZodType<string, ZodStringDef> {
 type ZodNumberCheck =
   | { kind: "min"; value: number; inclusive: boolean; message?: string }
   | { kind: "max"; value: number; inclusive: boolean; message?: string }
-  | { kind: "int"; message?: string };
+  | { kind: "int"; message?: string }
+  | { kind: "multipleOf"; value: number; message?: string };
 
 export interface ZodNumberDef extends ZodTypeDef {
   checks: ZodNumberCheck[];
@@ -622,6 +623,15 @@ export class ZodNumber extends ZodType<number, ZodNumberDef> {
             message: check.message,
           });
         }
+      } else if (check.kind === "multipleOf") {
+        if (data % check.value !== 0) {
+          invalid = true;
+          ctx.addIssue(data, {
+            code: ZodIssueCode.not_multiple_of,
+            multipleOf: check.value,
+            message: check.message,
+          });
+        }
       }
     }
 
@@ -736,6 +746,20 @@ export class ZodNumber extends ZodType<number, ZodNumberDef> {
       ],
     });
 
+  multipleOf = (value: number, message?: errorUtil.ErrMessage) =>
+    new ZodNumber({
+      ...this._def,
+      checks: [
+        ...this._def.checks,
+        {
+          kind: "multipleOf",
+          value: value,
+          message: errorUtil.toString(message),
+        },
+      ],
+    });
+  step = this.multipleOf;
+
   get minValue() {
     let min: number | null = null;
     for (const ch of this._def.checks) {
@@ -1668,6 +1692,33 @@ export class ZodObject<
     return deepPartialify(this) as any;
   };
 
+  partialBy = <Mask extends { [k in keyof T]?: true }>(
+    mask: Mask
+  ): ZodObject<
+    objectUtil.noNever<
+      {
+        [k in keyof T]: k extends keyof Mask
+          ? ReturnType<T[k]["optional"]>
+          : T[k];
+      }
+    >,
+    UnknownKeys,
+    Catchall
+  > => {
+    const newShape: any = {};
+    util.objectKeys(this.shape).map((key) => {
+      if (util.objectKeys(mask).indexOf(key) === -1) {
+        newShape[key] = this.shape[key];
+      } else {
+        newShape[key] = this.shape[key].optional();
+      }
+    });
+    return new ZodObject({
+      ...this._def,
+      shape: () => newShape,
+    }) as any;
+  };
+
   required = (): ZodObject<
     { [k in keyof T]: deoptional<T[k]> },
     UnknownKeys,

src/ZodError.ts

@@ -14,6 +14,7 @@ export const ZodIssueCode = util.arrayToEnum([
   "too_small",
   "too_big",
   "invalid_intersection_types",
+  "not_multiple_of",
 ]);
 
 export type ZodIssueCode = keyof typeof ZodIssueCode;
@@ -84,6 +85,11 @@ export interface ZodInvalidIntersectionTypesIssue extends ZodIssueBase {
   code: typeof ZodIssueCode.invalid_intersection_types;
 }
 
+export interface ZodNotMultipleOfIssue extends ZodIssueBase {
+  code: typeof ZodIssueCode.not_multiple_of;
+  multipleOf: number;
+}
+
 export interface ZodCustomIssue extends ZodIssueBase {
   code: typeof ZodIssueCode.custom;
   params?: { [k: string]: any };
@@ -103,6 +109,7 @@ export type ZodIssueOptionalMessage =
   | ZodTooSmallIssue
   | ZodTooBigIssue
   | ZodInvalidIntersectionTypesIssue
+  | ZodNotMultipleOfIssue
   | ZodCustomIssue;
 
 export type ZodIssue = ZodIssueOptionalMessage & { message: string };
@@ -326,6 +333,9 @@ export const defaultErrorMap = (
     case ZodIssueCode.invalid_intersection_types:
       message = `Intersection results could not be merged`;
       break;
+    case ZodIssueCode.not_multiple_of:
+      message = `Should be multiple of ${error.multipleOf}`;
+      break;
     default:
       message = _ctx.defaultError;
       util.assertNever(error);

src/__tests__/number.test.ts

@@ -8,13 +8,17 @@ const gteFive = z.number().gte(5);
 const ltFive = z.number().lt(5);
 const lteFive = z.number().lte(5);
 const intNum = z.number().int();
+const multipleOfFive = z.number().multipleOf(5);
+const stepSixPointFour = z.number().step(6.4);
 
 test("passing validations", () => {
   gtFive.parse(6);
   gteFive.parse(5);
   ltFive.parse(4);
   lteFive.parse(5);
   intNum.parse(4);
+  multipleOfFive.parse(15);
+  stepSixPointFour.parse(12.8);
 });
 
 test("failing validations", () => {
@@ -23,6 +27,8 @@ test("failing validations", () => {
   expect(() => gtFive.parse(5)).toThrow();
   expect(() => gteFive.parse(4)).toThrow();
   expect(() => intNum.parse(3.14)).toThrow();
+  expect(() => multipleOfFive.parse(14.9)).toThrow();
+  expect(() => stepSixPointFour.parse(6.41)).toThrow();
 });
 
 test("parse NaN", () => {

src/__tests__/partialBy.test.ts

@@ -0,0 +1,42 @@
+// @ts-ignore TS6133
+import { expect, test } from "@jest/globals";
+
+import { util } from "../helpers/util";
+import * as z from "../index";
+
+const fish = z.object({
+  name: z.string(),
+  age: z.number(),
+  nested: z.object({}),
+});
+
+test("partial by type inference", () => {
+  const optionalNameFish = fish.partialBy({ name: true });
+  type optionalNameFish = z.infer<typeof optionalNameFish>;
+  const f1: util.AssertEqual<
+    optionalNameFish,
+    { name?: string | undefined; age: number; nested: {} }
+  > = true;
+  f1;
+});
+
+test("partial by parse - success", () => {
+  const nameOptionalFish = fish.partialBy({ name: true });
+  nameOptionalFish.parse({ age: 0, nested: {} });
+});
+
+test("partial by parse - fail", () => {
+  fish.partialBy({ name: true, age: true }).parse({ nested: {} } as any);
+  fish
+    .partialBy({ name: true })
+    .parse({ name: "bob", age: 12, nested: {} } as any);
+  fish.partialBy({ name: true }).parse({ age: 12, nested: {} } as any);
+
+  const nameOptionalFish = fish.partialBy({ name: true });
+  const bad1 = () =>
+    nameOptionalFish.parse({ name: 12, age: 12, nested: {} } as any);
+  const bad2 = () => nameOptionalFish.parse({ age: 12 } as any);
+
+  expect(bad1).toThrow();
+  expect(bad2).toThrow();
+});