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fix: don't serialize undefined as null (#7531)

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* fix: don't serialize `undefined` as `null`

* test: include more types in the pass-js test
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wackbyte 2023-06-30 17:24:29 -04:00 committed by GitHub
parent 4dd8849be2
commit 2172dd4f0d
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6 changed files with 143 additions and 35 deletions
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5
.changeset/moody-singers-develop.md Normal file
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@ -0,0 +1,5 @@
---
'astro': patch
---
Fix serialization of `undefined` in framework component props

37
packages/astro/e2e/fixtures/pass-js/src/components/React.tsx
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@ -1,10 +1,14 @@
import type { BigNestedObject } from '../types';
import { useState } from 'react';
interface Props {
obj: BigNestedObject;
num: bigint;
arr: any[];
undefined: undefined;
null: null;
boolean: boolean;
number: number;
string: string;
bigint: bigint;
object: BigNestedObject;
array: any[];
map: Map<string, string>;
set: Set<string>;
}
@ -12,7 +16,7 @@ interface Props {
const isNode = typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]';
/** a counter written in React */
export default function Component({ obj, num, arr, map, set }: Props) {
export default function Component({ undefined: undefinedProp, null: nullProp, boolean, number, string, bigint, object, array, map, set }: Props) {
// We are testing hydration, so don't return anything in the server.
if(isNode) {
return <div></div>
@ -20,13 +24,22 @@ export default function Component({ obj, num, arr, map, set }: Props) {
return (
<div>
<span id="nested-date">{obj.nested.date.toUTCString()}</span>
<span id="regexp-type">{Object.prototype.toString.call(obj.more.another.exp)}</span>
<span id="regexp-value">{obj.more.another.exp.source}</span>
<span id="bigint-type">{Object.prototype.toString.call(num)}</span>
<span id="bigint-value">{num.toString()}</span>
<span id="arr-type">{Object.prototype.toString.call(arr)}</span>
<span id="arr-value">{arr.join(',')}</span>
<span id="undefined-type">{Object.prototype.toString.call(undefinedProp)}</span>
<span id="null-type">{Object.prototype.toString.call(nullProp)}</span>
<span id="boolean-type">{Object.prototype.toString.call(boolean)}</span>
<span id="boolean-value">{boolean.toString()}</span>
<span id="number-type">{Object.prototype.toString.call(number)}</span>
<span id="number-value">{number.toString()}</span>
<span id="string-type">{Object.prototype.toString.call(string)}</span>
<span id="string-value">{string}</span>
<span id="bigint-type">{Object.prototype.toString.call(bigint)}</span>
<span id="bigint-value">{bigint.toString()}</span>
<span id="date-type">{Object.prototype.toString.call(object.nested.date)}</span>
<span id="date-value">{object.nested.date.toUTCString()}</span>
<span id="regexp-type">{Object.prototype.toString.call(object.more.another.exp)}</span>
<span id="regexp-value">{object.more.another.exp.source}</span>
<span id="array-type">{Object.prototype.toString.call(array)}</span>
<span id="array-value">{array.join(',')}</span>
<span id="map-type">{Object.prototype.toString.call(map)}</span>
<ul id="map-items">{Array.from(map).map(([key, value]) => (
<li>{key}: {value}</li>

18
packages/astro/e2e/fixtures/pass-js/src/pages/index.astro
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@ -1,8 +1,8 @@
---
import type { BigNestedObject } from '../types';
import Component from '../components/React';
import { BigNestedObject } from '../types';
const obj: BigNestedObject = {
const object: BigNestedObject = {
nested: {
date: new Date('Thu, 09 Jun 2022 14:18:27 GMT')
},
@ -30,7 +30,19 @@ set.add('test2');
</head>
<body>
<main>
<Component client:load obj={obj} num={11n} arr={[0, "foo"]} map={map} set={set} />
<Component
client:load
undefined={undefined}
null={null}
boolean={true}
number={16}
string={"abc"}
bigint={11n}
object={object}
array={[0, "foo"]}
map={map}
set={set}
/>
</main>
</body>
</html>

87
packages/astro/e2e/pass-js.test.js
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@ -16,49 +16,97 @@ test.afterAll(async () => {
});
test.describe('Passing JS into client components', () => {
test('Complex nested objects', async ({ astro, page }) => {
test('Primitive values', async ({ astro, page }) => {
await page.goto(astro.resolveUrl('/'));
const nestedDate = await page.locator('#nested-date');
await expect(nestedDate, 'component is visible').toBeVisible();
await expect(nestedDate).toHaveText('Thu, 09 Jun 2022 14:18:27 GMT');
// undefined
const undefinedType = page.locator('#undefined-type');
await expect(undefinedType, 'is visible').toBeVisible();
await expect(undefinedType).toHaveText('[object Undefined]');
const regeExpType = await page.locator('#regexp-type');
await expect(regeExpType, 'is visible').toBeVisible();
await expect(regeExpType).toHaveText('[object RegExp]');
// null
const nullType = page.locator('#null-type');
await expect(nullType, 'is visible').toBeVisible();
await expect(nullType).toHaveText('[object Null]');
const regExpValue = await page.locator('#regexp-value');
await expect(regExpValue, 'is visible').toBeVisible();
await expect(regExpValue).toHaveText('ok');
// boolean
const booleanType = page.locator('#boolean-type');
await expect(booleanType, 'is visible').toBeVisible();
await expect(booleanType).toHaveText('[object Boolean]');
const booleanValue = page.locator('#boolean-value');
await expect(booleanValue, 'is visible').toBeVisible();
await expect(booleanValue).toHaveText('true');
// number
const numberType = page.locator('#number-type');
await expect(numberType, 'is visible').toBeVisible();
await expect(numberType).toHaveText('[object Number]');
const numberValue = page.locator('#number-value');
await expect(numberValue, 'is visible').toBeVisible();
await expect(numberValue).toHaveText('16');
// string
const stringType = page.locator('#string-type');
await expect(stringType, 'is visible').toBeVisible();
await expect(stringType).toHaveText('[object String]');
const stringValue = page.locator('#string-value');
await expect(stringValue, 'is visible').toBeVisible();
await expect(stringValue).toHaveText('abc');
});
test('BigInts', async ({ astro, page }) => {
await page.goto(astro.resolveUrl('/'));
const bigIntType = await page.locator('#bigint-type');
const bigIntType = page.locator('#bigint-type');
await expect(bigIntType, 'is visible').toBeVisible();
await expect(bigIntType).toHaveText('[object BigInt]');
const bigIntValue = await page.locator('#bigint-value');
const bigIntValue = page.locator('#bigint-value');
await expect(bigIntValue, 'is visible').toBeVisible();
await expect(bigIntValue).toHaveText('11');
});
test('Complex nested objects', async ({ astro, page }) => {
await page.goto(astro.resolveUrl('/'));
// Date
const dateType = page.locator('#date-type');
await expect(dateType, 'is visible').toBeVisible();
await expect(dateType).toHaveText('[object Date]');
const dateValue = page.locator('#date-value');
await expect(dateValue, 'is visible').toBeVisible();
await expect(dateValue).toHaveText('Thu, 09 Jun 2022 14:18:27 GMT');
// RegExp
const regExpType = page.locator('#regexp-type');
await expect(regExpType, 'is visible').toBeVisible();
await expect(regExpType).toHaveText('[object RegExp]');
const regExpValue = page.locator('#regexp-value');
await expect(regExpValue, 'is visible').toBeVisible();
await expect(regExpValue).toHaveText('ok');
});
test('Arrays that look like the serialization format', async ({ astro, page }) => {
await page.goto(astro.resolveUrl('/'));
const arrType = await page.locator('#arr-type');
await expect(arrType, 'is visible').toBeVisible();
await expect(arrType).toHaveText('[object Array]');
const arrayType = page.locator('#array-type');
await expect(arrayType, 'is visible').toBeVisible();
await expect(arrayType).toHaveText('[object Array]');
const arrValue = await page.locator('#arr-value');
await expect(arrValue, 'is visible').toBeVisible();
await expect(arrValue).toHaveText('0,foo');
const arrayValue = page.locator('#array-value');
await expect(arrayValue, 'is visible').toBeVisible();
await expect(arrayValue).toHaveText('0,foo');
});
test('Maps and Sets', async ({ astro, page }) => {
await page.goto(astro.resolveUrl('/'));
// Map
const mapType = page.locator('#map-type');
await expect(mapType, 'is visible').toBeVisible();
await expect(mapType).toHaveText('[object Map]');
@ -69,10 +117,13 @@ test.describe('Passing JS into client components', () => {
const texts = await mapValues.allTextContents();
expect(texts).toEqual(['test1: test2', 'test3: test4']);
// Set
const setType = page.locator('#set-type');
await expect(setType, 'is visible').toBeVisible();
await expect(setType).toHaveText('[object Set]');
const setValue = page.locator('#set-value');
await expect(setValue, 'is visible').toBeVisible();
await expect(setValue).toHaveText('test1,test2');
});
});

4
packages/astro/src/runtime/server/serialize.ts
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@ -58,7 +58,7 @@ function convertToSerializedForm(
value: any,
metadata: AstroComponentMetadata | Record<string, any> = {},
parents = new WeakSet<any>()
): [ValueOf<typeof PROP_TYPE>, any] {
): [ValueOf<typeof PROP_TYPE>, any] | [ValueOf<typeof PROP_TYPE>] {
const tag = Object.prototype.toString.call(value);
switch (tag) {
case '[object Date]': {
@ -100,6 +100,8 @@ function convertToSerializedForm(
default: {
if (value !== null && typeof value === 'object') {
return [PROP_TYPE.Value, serializeObject(value, metadata, parents)];
} else if (value === undefined) {
return [PROP_TYPE.Value];
} else {
return [PROP_TYPE.Value, value];
}

27
packages/astro/test/serialize.test.js
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@ -2,11 +2,36 @@ import { expect } from 'chai';
import { serializeProps } from '../dist/runtime/server/serialize.js';
describe('serialize', () => {
it('serializes a plain value', () => {
it('serializes undefined', () => {
const input = { a: undefined };
const output = `{"a":[0]}`;
expect(serializeProps(input)).to.equal(output);
});
it('serializes null', () => {
const input = { a: null };
const output = `{"a":[0,null]}`;
expect(serializeProps(input)).to.equal(output);
});
it('serializes a boolean', () => {
const input = { a: false };
const output = `{"a":[0,false]}`;
expect(serializeProps(input)).to.equal(output);
});
it('serializes a number', () => {
const input = { a: 1 };
const output = `{"a":[0,1]}`;
expect(serializeProps(input)).to.equal(output);
});
it('serializes a string', () => {
const input = { a: 'b' };
const output = `{"a":[0,"b"]}`;
expect(serializeProps(input)).to.equal(output);
});
it('serializes an object', () => {
const input = { a: { b: 'c' } };
const output = `{"a":[0,{"b":[0,"c"]}]}`;
expect(serializeProps(input)).to.equal(output);
});
it('serializes an array', () => {
const input = { a: [0] };
const output = `{"a":[1,"[[0,0]]"]}`;