source: frontend/node_modules/@babel/eslint-parser/lib/worker/maybeParseSync.cjs

"use strict";

const babel = require("./babel-core.cjs");
const convert = require("../convert/index.cjs");
const astInfo = require("./ast-info.cjs");
const extractParserOptionsPlugin = require("./extract-parser-options-plugin.cjs");
const {
  getVisitorKeys,
  getTokLabels
} = astInfo;
const ref = {};
let extractParserOptionsConfigItem;
const MULTIPLE_OVERRIDES = /More than one plugin attempted to override parsing/;
module.exports = function maybeParseSync(code, options) {
  if (!extractParserOptionsConfigItem) {
    extractParserOptionsConfigItem = babel.createConfigItemSync([extractParserOptionsPlugin, ref], {
      dirname: __dirname,
      type: "plugin"
    });
  }
  const {
    plugins
  } = options;
  options.plugins = plugins.concat(extractParserOptionsConfigItem);
  let ast;
  try {
    return {
      parserOptions: babel.parseSync(code, options),
      ast: null
    };
  } catch (err) {
    if (!MULTIPLE_OVERRIDES.test(err.message)) {
      throw err;
    }
  }
  options.plugins = plugins;
  try {
    ast = babel.parseSync(code, options);
  } catch (err) {
    throw convert.convertError(err);
  }
  return {
    ast: convert.convertFile(ast, code, getTokLabels(), getVisitorKeys()),
    parserOptions: null
  };
};

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