Re: Block Lambdas: break and continue

Sun, 15 Jan 2012 07:36:41 -0800

January 15, 2012 3:51 AM
Brendan Eich wrote:

More when I reply to Axel in a bit.

I think there may have been a misunderstanding. My proposed solution
amounts to syntactic sugar over the existing strawman and makes
break/continue work intuitively with loopy block lambdas, and your
reply to Axel appears to be against an exception-based version, but
you seem to have (implicitly) tied them together.

That's right, because I don't see how your proposal can work without exceptions. You write that it is yntactic sugar. Ok, what is the desugaring? How does

for arr.ForEach { |o|
  if (...) break;
}

And it still works, without needing to throw exceptions or alter the
existing library code.
translate into JS without a throw that the implementation of arr.forEach, which is not modfiied by this for-prefixed invocation, can catch?

/be
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