sweet.js macro for inserting angular.js dependency injection annotations

di.sjs

macro di {
  case {
    _(function ($args (,) ...) {
      $body...
    })
  } => {
    letstx $names... = _.map(
      #{ $args... },
      function(ident) {
        return makeValue(ident.token.value, ident);
      }
    );
  
    return #{
      [
        $names (,) ...,
        function($args...) {
          $body...
        }
      ]
    }
  }
}

di(function(alpha, beta, gamma) {
  return alpha + beta + gamma;
});