A Subclass with extend has an enumerable constructor

[jspies]

Iterating over a class does not enumerate "constructor", which I would expect.

class Base
  constructor: ->

test = new Base

for name, value of test
  console.log(name)

There's no output, as expected. But when I extend the class, the constructor shows up in enumeration.

class Base
  constructor: ->

class Test extends Base

test = new Test

for name, value of test
  console.log(name)

Output is "constructor"

I'm assuming this isn't desired behavior, but I'm not sure of a workaround or fix at this point.

[michaelficarra]

Base.prototype still has a constructor property, it's just non-enumerable (see §13.2 step 17). We can't define a non-enumerable constructor property on the subclass's prototype in our target of least-common-denominator (IE6) JS. Marking as wontfix and frozen, since we could theoretically fix this one day if we target ES5. Thanks for the bug report, though.

[jspies]

Alright, I was able to work around it with

class Test extends Base
Object.defineProperty(Test.prototype, 'constructor', {enumerable:false})

Do you guys have a discussion anywhere about why you are supporting IE6?

[michaelficarra]

See #2008 for the most recent discussion.