2 * Copyright (C) 2018 Nick Downing <nick@ndcode.org>
3 * SPDX-License-Identifier: MIT
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to
7 * deal in the Software without restriction, including without limitation the
8 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 * sell copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 let acorn = require('./dist/acorn')
25 let astring = require('astring')
26 let transform = require('./transform')
27 let visitors = require('./visitors')
28 let uglify_js = require('@ndcode/uglify-js')
30 let jst = (text, options) => {
31 options = Object.assign(
34 ecma_version: 'latest', // or 11, 12, 13, etc
36 ast_options: {indent: 2},
37 astring_options: {indent: ' ', startingIndentLevel: 0},
38 uglify_options: {compress: true, mangle: true}
43 let ast0 = acorn.parse(
46 allowReturnOutsideFunction: options.bare_returns,
47 ecmaVersion: options.ecma_version
50 if (options.output === 'ast0')
51 return JSON.stringify(ast0, null, options.ast_options.indent)
53 let ast1 = transform.transform(visitors, ast0)
54 if (options.output === 'ast1')
55 return JSON.stringify(ast1, null, options.ast_options.indent)
57 if (options.output === 'astring')
58 return astring.generate(ast1, options.astring_options)
60 let render = uglify_js.minify(
61 uglify_js.AST_Node.from_mozilla_ast(ast1),
62 options.uglify_options