Exceptions in actions

[JonathanMEdwards]

When I throw an exception inside a semantic action it turns into a TypeError exception. Is there a supported way to do this?

[alexwarth]

I just edited the math demo to throw an Error from the AddExp_plus case of the interpret operation:

      ...,
      AddExp_plus: function(x, _, y) {
        throw new Error('uh-oh');
        return x.interpret() + y.interpret();
      },
      ...,

and when I load that page, the console shows what I expected: Uncaught Error: uh-oh. So I'm not sure what's causing the TypeError you're seeing. Can you include more details so I can try to reproduce this problem on my end? (Well, it probably makes more sense for us to look at this together tomorrow morning, since you're around.)

[JonathanMEdwards]

Sorry my bad.
Note to self: don't open issues late at night.

On Wed, Jun 3, 2015 at 11:52 PM, Alessandro Warth notifications@github.com
wrote:

I just edited the math demo to throw an Error from the AddExp_plus case
of the interpret operation:

  ...,
  AddExp_plus: function(x, _, y) {
    throw new Error('uh-oh');
    return x.interpret() + y.interpret();
  },
  ...,

and when I load that page, the console shows what I expected: Uncaught
Error: uh-oh. So I'm not sure what's causing the TypeError you're seeing.
Can you include more details so I can try to reproduce this problem on my
end? (Well, it probably makes more sense for us to look at this together
tomorrow morning, since you're around.)

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[alexwarth]

LOL