gistfile1.txt

let function = macro {
	case { _ * $id ($args ...) { $body ... } } => {
		var body = #{ $body ... };
		var isAwaitGenerator = false;
		for (var i = 0; i < body.length; i++) {
			if (body[i].token.type === parser.Token.Identifier &&
				body[i].token.value === 'await') {
				var expr = getExpr(body.slice(i));
				if (expr.success) {
					isAwaitGenerator = true;
					// just drop the token?
					body.splice(i,1);
					i--;
				}
			}
		}
		if (isAwaitGenerator) {
		  //PROBLEM: causes errors?
		  letstx $nbody ... = body;
		  return #{ 
			  function* $id ($args ...) { "is an await";
				  $nbody ...
			  }
		  }
		}
	}
}

var a = function*x(b) {
	// PROBLEM: Expected to drop await token?
  await +1;
}