short example for cps based exception handling without propagation

exceptions.js

/*
 * try {
 *   var foo = 3 
 *   raise "some exception"
 *   console.log("do some stuff");
 * } catch(msg) {
 *   console.log("caught exception")
 *   proceed
 * }
 * 
 * could easily be compiled into
 */
_try(function(raise) {
  var foo = 3;
  
  raise("some exception", function() {
    console.log("do some stuff");
  });  

// catch
},function(e, proceed, retry) {
  console.log("caught exception")
  proceed()
}).call(this)


// of course doesn't play well with `return`, since it is captured by this encoding as functions
function _try(body, handler) {

  function execute() {
    body.call(this, raise) 
  }
  function raise(exception, cont) {
    handler(exception, cont, execute)
  }  
  return execute;
  
}