mirror of https://github.com/jkjoy/sunpeiwen.git
65 lines
1.8 KiB
JavaScript
65 lines
1.8 KiB
JavaScript
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/* eslint-disable import/no-extraneous-dependencies */
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import fs from "fs";
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import { createRequire } from "module";
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const [parse, generate] = await Promise.all([
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import("@babel/parser").then(ns => ns.parse),
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import("@babel/generator").then(ns => ns.default.default || ns.default),
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]).catch(error =>
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Promise.reject(
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new Error(
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"Before running generate-helpers.js you must compile @babel/parser and @babel/generator.",
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{ cause: error }
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)
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)
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);
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const REGENERATOR_RUNTIME_IN_FILE = fs.readFileSync(
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createRequire(import.meta.url).resolve("regenerator-runtime"),
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"utf8"
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);
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const MIN_VERSION = "7.18.0";
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const HEADER = `/* @minVersion ${MIN_VERSION} */
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/*
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* This file is auto-generated! Do not modify it directly.
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* To re-generate, update the regenerator-runtime dependency of
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* @babel/helpers and run 'yarn gulp generate-runtime-helpers'.
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*/
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/* eslint-disable */
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`;
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const COPYRIGHT = `/*! regenerator-runtime -- Copyright (c) 2014-present, Facebook, Inc. -- license (MIT): https://github.com/facebook/regenerator/blob/main/LICENSE */`;
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export default function generateRegeneratorRuntimeHelper() {
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const ast = parse(REGENERATOR_RUNTIME_IN_FILE, { sourceType: "script" });
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const factoryFunction = ast.program.body[0].declarations[0].init.callee;
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factoryFunction.type = "FunctionDeclaration";
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factoryFunction.id = { type: "Identifier", name: "_regeneratorRuntime" };
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factoryFunction.params = [];
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factoryFunction.body.body.unshift(
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...stmts(`
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${COPYRIGHT}
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_regeneratorRuntime = function () { return exports; };
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var exports = {};
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`)
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);
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const { code } = generate({
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type: "ExportDefaultDeclaration",
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declaration: factoryFunction,
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});
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return HEADER + code;
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}
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function stmts(code) {
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return parse(`function _() { ${code} }`, {
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sourceType: "script",
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}).program.body[0].body.body;
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}
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