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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import escapeStringRegexp from 'escape-string-regexp';
import fs from 'fs';
import path from 'path';
import { builtinsPolyfills } from './polyfills';
// import { NodeResolvePlugin } from '@esbuild-plugins/node-resolve'
const NAME = 'node-modules-polyfills';
const NAMESPACE = NAME;
function removeEndingSlash(importee) {
if (importee && importee.slice(-1) === '/') {
importee = importee.slice(0, -1);
}
return importee;
}
export function NodeModulesPolyfillPlugin(options = {}) {
const { namespace = NAMESPACE, name = NAME } = options;
if (namespace.endsWith('commonjs')) {
throw new Error(`namespace ${namespace} must not end with commonjs`);
}
// this namespace is needed to make ES modules expose their default export to require: require('assert') will give you import('assert').default
const commonjsNamespace = namespace + '-commonjs';
const polyfilledBuiltins = builtinsPolyfills();
const polyfilledBuiltinsNames = [...polyfilledBuiltins.keys()];
return {
name,
setup: function setup({ onLoad, onResolve, initialOptions }) {
var _a;
// polyfills contain global keyword, it must be defined
if ((initialOptions === null || initialOptions === void 0 ? void 0 : initialOptions.define) && !((_a = initialOptions.define) === null || _a === void 0 ? void 0 : _a.global)) {
initialOptions.define['global'] = 'globalThis';
}
else if (!(initialOptions === null || initialOptions === void 0 ? void 0 : initialOptions.define)) {
initialOptions.define = { global: 'globalThis' };
}
// TODO these polyfill module cannot import anything, is that ok?
function loader(args) {
return __awaiter(this, void 0, void 0, function* () {
try {
const argsPath = args.path.replace(/^node:/, '');
const isCommonjs = args.namespace.endsWith('commonjs');
const resolved = polyfilledBuiltins.get(removeEndingSlash(argsPath));
const contents = yield (yield fs.promises.readFile(resolved)).toString();
let resolveDir = path.dirname(resolved);
if (isCommonjs) {
return {
loader: 'js',
contents: commonJsTemplate({
importPath: argsPath,
}),
resolveDir,
};
}
return {
loader: 'js',
contents,
resolveDir,
};
}
catch (e) {
console.error('node-modules-polyfill', e);
return {
contents: `export {}`,
loader: 'js',
};
}
});
}
onLoad({ filter: /.*/, namespace }, loader);
onLoad({ filter: /.*/, namespace: commonjsNamespace }, loader);
const filter = new RegExp([
...polyfilledBuiltinsNames,
...polyfilledBuiltinsNames.map((n) => `node:${n}`),
]
.map(escapeStringRegexp)
.join('|'));
function resolver(args) {
return __awaiter(this, void 0, void 0, function* () {
const argsPath = args.path.replace(/^node:/, '');
const ignoreRequire = args.namespace === commonjsNamespace;
if (!polyfilledBuiltins.has(argsPath)) {
return;
}
const isCommonjs = !ignoreRequire && args.kind === 'require-call';
return {
namespace: isCommonjs ? commonjsNamespace : namespace,
path: argsPath,
};
});
}
onResolve({ filter }, resolver);
// onResolve({ filter: /.*/, namespace }, resolver)
},
};
}
function commonJsTemplate({ importPath }) {
return `
const polyfill = require('${importPath}')
if (polyfill && polyfill.default) {
module.exports = polyfill.default
for (let k in polyfill) {
module.exports[k] = polyfill[k]
}
} else if (polyfill) {
module.exports = polyfill
}
`;
}
export default NodeModulesPolyfillPlugin;
//# sourceMappingURL=index.js.map
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