Files F99490239

generate-regenerator-runtime.js
No OneTemporary
Actions

Subscribers

None

File Metadata

Created: Fri, Jan 24, 23:47

generate-regenerator-runtime.js
View Options

	/* eslint-disable import/no-extraneous-dependencies */

	import fs from "fs";
	import { createRequire } from "module";

	const [parse, generate] = await Promise.all([
	import("@babel/parser").then(ns => ns.parse),
	import("@babel/generator").then(ns => ns.default.default \|\| ns.default),
	]).catch(error =>
	Promise.reject(
	new Error(
	"Before running generate-helpers.js you must compile @babel/parser and @babel/generator.",
	{ cause: error }
	)
	)
	);

	const REGENERATOR_RUNTIME_IN_FILE = fs.readFileSync(
	createRequire(import.meta.url).resolve("regenerator-runtime"),
	"utf8"
	);

	const MIN_VERSION = "7.18.0";

	const HEADER = `/* @minVersion ${MIN_VERSION} */
	/*
	* This file is auto-generated! Do not modify it directly.
	* To re-generate, update the regenerator-runtime dependency of
	* @babel/helpers and run 'yarn gulp generate-runtime-helpers'.
	*/

	/* eslint-disable */
	`;

	const COPYRIGHT = `/! regenerator-runtime -- Copyright (c) 2014-present, Facebook, Inc. -- license (MIT): https://github.com/facebook/regenerator/blob/main/LICENSE /`;

	export default function generateRegeneratorRuntimeHelper() {
	const ast = parse(REGENERATOR_RUNTIME_IN_FILE, { sourceType: "script" });

	const factoryFunction = ast.program.body[0].declarations[0].init.callee;
	factoryFunction.type = "FunctionDeclaration";
	factoryFunction.id = { type: "Identifier", name: "_regeneratorRuntime" };
	factoryFunction.params = [];
	factoryFunction.body.body.unshift(
	...stmts(`
	${COPYRIGHT}
	_regeneratorRuntime = function () { return exports; };
	var exports = {};
	`)
	);

	const { code } = generate({
	type: "ExportDefaultDeclaration",
	declaration: factoryFunction,
	});

	return HEADER + code;
	}

	function stmts(code) {
	return parse(`function _() { ${code} }`, {
	sourceType: "script",
	}).program.body[0].body.body;
	}

Event Timeline