Unexpected token punc «,», expected punc «:»

[jmesa-sistel]

Bug
uglify-js 2.8.15

• JavaScript input: create file test.js with the next code

function f1 (variable) {
  return variable*2
}

function f2 () {
  return false
}

module.exports = {
  f1,
  f2
}

• The uglifyjs CLI command executed
  uglify-js test.js

• An example of JavaScript output produced and/or the error or warning.

SyntaxError: Unexpected token punc «,», expected punc «:»
    at JS_Parse_Error.get (eval at <anonymous> (C:\Users\jmesa.SISTEL\AppData\Roaming\npm\node_modules\uglify-js\tools\node.js:27:1), <anonymous>:86:23)
    at C:\Users\jmesa.SISTEL\AppData\Roaming\npm\node_modules\uglify-js\bin\uglifyjs:384:39
    at time_it (C:\Users\jmesa.SISTEL\AppData\Roaming\npm\node_modules\uglify-js\bin\uglifyjs:620:15)
    at C:\Users\jmesa.SISTEL\AppData\Roaming\npm\node_modules\uglify-js\bin\uglifyjs:345:9
    at tryToString (fs.js:448:3)
    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:435:12)

To fix the code I have 2 workaround: use acorn (uglify-js --acorn test.js)
or I modifify the code like this:

module.exports = {
  f1:f1,
  f2:f2
}

The problem is that code like this is inside a lot of external modules and I want to use webpack uglify plugin.

[alexlamsl]

https://github.com/mishoo/UglifyJS2#note

https://github.com/mishoo/UglifyJS2#harmony