import { getOption } from "../lib/util" ; export function parse ( source , options ? ) { const comments = [ ] ; const tokens = [ ] ; const ast = require ( "acorn" ) . parse ( source , { allowHashBang : true , allowImportExportEverywhere : true , allowReturnOutsideFunction : true , ecmaVersion : getOption ( options , "ecmaVersion" , 8 ) , sourceType : getOption ( options , "sourceType" , "module" ) , locations : true , onComment : comments , onToken : tokens , } ) ; if ( ! ast . comments ) { ast . comments = comments ; } if ( ! ast . tokens ) { ast . tokens = tokens ; } return ast ; } ;