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