gistfile1.txt

macro _throw {
  rule { $x } => {
    (function () {
      throw($x);
    }.call(this))
  }
}

function problem() {
  _throw "Hello";
}

function problem2() {
  problem();
}

function problem3() {
  problem2();
}

function problem4() {
  problem3();
}

problem4();