Kismet Hasanaj
135 lines
4.7 KiB
JavaScript
135 lines
4.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, //------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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"default", {
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enumerable: true,
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get: function() {
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return _default;
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}
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});
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var _definerule = require("../utils/define-rule");
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// Keep in sync with next.js polyfills file : https://github.com/vercel/next.js/blob/master/packages/next-polyfill-nomodule/src/index.js
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var NEXT_POLYFILLED_FEATURES = [
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'Array.prototype.@@iterator',
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'Array.prototype.at',
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'Array.prototype.copyWithin',
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'Array.prototype.fill',
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'Array.prototype.find',
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'Array.prototype.findIndex',
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'Array.prototype.flatMap',
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'Array.prototype.flat',
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'Array.from',
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'Array.prototype.includes',
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'Array.of',
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'Function.prototype.name',
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'fetch',
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'Map',
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'Number.EPSILON',
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'Number.Epsilon',
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'Number.isFinite',
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'Number.isNaN',
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'Number.isInteger',
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'Number.isSafeInteger',
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'Number.MAX_SAFE_INTEGER',
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'Number.MIN_SAFE_INTEGER',
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'Number.parseFloat',
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'Number.parseInt',
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'Object.assign',
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'Object.entries',
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'Object.fromEntries',
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'Object.getOwnPropertyDescriptor',
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'Object.getOwnPropertyDescriptors',
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'Object.hasOwn',
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'Object.is',
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'Object.keys',
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'Object.values',
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'Reflect',
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'Set',
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'Symbol',
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'Symbol.asyncIterator',
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'String.prototype.codePointAt',
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'String.prototype.endsWith',
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'String.fromCodePoint',
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'String.prototype.includes',
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'String.prototype.@@iterator',
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'String.prototype.padEnd',
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'String.prototype.padStart',
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'String.prototype.repeat',
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'String.raw',
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'String.prototype.startsWith',
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'String.prototype.trimEnd',
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'String.prototype.trimStart',
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'URL',
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'URL.prototype.toJSON',
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'URLSearchParams',
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'WeakMap',
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'WeakSet',
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'Promise',
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'Promise.prototype.finally',
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'es2015',
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'es2016',
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'es2017',
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'es2018',
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'es2019',
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'es5',
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'es6',
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'es7'
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];
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var url = 'https://nextjs.org/docs/messages/no-unwanted-polyfillio';
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var _default = (0, _definerule.defineRule)({
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meta: {
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docs: {
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description: 'Prevent duplicate polyfills from Polyfill.io.',
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category: 'HTML',
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recommended: true,
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url: url
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},
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type: 'problem',
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schema: []
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},
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create: function create(context) {
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var scriptImport = null;
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return {
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ImportDeclaration: function ImportDeclaration(node) {
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if (node.source && node.source.value === 'next/script') {
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scriptImport = node.specifiers[0].local.name;
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}
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},
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JSXOpeningElement: function JSXOpeningElement(node) {
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if (node.name && node.name.name !== 'script' && node.name.name !== scriptImport) {
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return;
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}
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if (node.attributes.length === 0) {
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return;
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}
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var srcNode = node.attributes.find(function(attr) {
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return attr.type === 'JSXAttribute' && attr.name.name === 'src';
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});
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if (!srcNode || srcNode.value.type !== 'Literal') {
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return;
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}
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var src = srcNode.value.value;
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if (src.startsWith('https://cdn.polyfill.io/v2/') || src.startsWith('https://polyfill.io/v3/') || // https://community.fastly.com/t/new-options-for-polyfill-io-users/2540
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src.startsWith('https://polyfill-fastly.net/') || src.startsWith('https://polyfill-fastly.io/') || // https://blog.cloudflare.com/polyfill-io-now-available-on-cdnjs-reduce-your-supply-chain-risk
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src.startsWith('https://cdnjs.cloudflare.com/polyfill/')) {
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var featureQueryString = new URL(src).searchParams.get('features');
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var featuresRequested = (featureQueryString || '').split(',');
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var unwantedFeatures = featuresRequested.filter(function(feature) {
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return NEXT_POLYFILLED_FEATURES.includes(feature);
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});
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if (unwantedFeatures.length > 0) {
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context.report({
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node: node,
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message: "No duplicate polyfills from Polyfill.io are allowed. ".concat(unwantedFeatures.join(', '), " ").concat(unwantedFeatures.length > 1 ? 'are' : 'is', " already shipped with Next.js. See: ").concat(url)
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});
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}
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}
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}
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};
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}
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});
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