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var acorn = require('acorn')
var xtend = require('xtend')
var CJSParser = acorn.Parser
.extend(require('./lib/bigint'))
.extend(require('./lib/class-fields'))
.extend(require('./lib/static-class-features'))
.extend(require('./lib/numeric-separator'))
.extend(require('./lib/dynamic-import').default)
var ESModulesParser = CJSParser
.extend(require('./lib/export-ns-from'))
.extend(require('./lib/import-meta'))
function mapOptions (opts) {
if (!opts) opts = {}
return xtend({
ecmaVersion: 2020,
allowHashBang: true,
allowReturnOutsideFunction: true
}, opts)
}
function getParser (opts) {
if (!opts) opts = {}
return opts.sourceType === 'module' ? ESModulesParser : CJSParser
}
module.exports = exports = xtend(acorn, {
parse: function parse (src, opts) {
return getParser(opts).parse(src, mapOptions(opts))
},
parseExpressionAt: function parseExpressionAt (src, offset, opts) {
return getParser(opts).parseExpressionAt(src, offset, mapOptions(opts))
},
tokenizer: function tokenizer (src, opts) {
return getParser(opts).tokenizer(src, mapOptions(opts))
}
})