How to match colon in sweet.js?

Question

macro m {
  rule {
    $a: $b
  } => {
    $a($b)
  }
}

m 1: 2

I think sweetjs is interpreting the colon as a marker for match class. If so, how do I escape that make make sweetjs match it as it is?

This seems to work just fine though

macro m {
  rule {
    :$b
  } => {
    $b
  }
}

m :1

Thanks for making me me look at `sweet.js`. It's a pretty cool library. — royhowie, Apr 16 '14 at 20:34

score 1 · Accepted Answer · answered Apr 17 '14 at 00:24

1

You can use $[:] to match a literal.

answered Apr 17 '14 at 00:24

timdisney

1 Answers1