Function wrapAsyncFunction

lib/script.js:268–315

(asyncFunction, sandbox, events, done, sandboxRoot)

}

function wrapAsyncFunction(asyncFunction, sandbox, events, done, sandboxRoot) {
  return function() {
    if (sandboxRoot._error) return;

    var args = _.toArray(arguments);
    var callback;
    var callbackIndex;
    var result;

    for(var i = 0; i < args.length; i++) {
      if(typeof args[i] == 'function') {
        callback = args[i];
        callbackIndex = i;
        break;
      }
    }

    if (typeof callback === 'function') {
      events.emit('addCallback');
      args[callbackIndex] = function() {
        if (sandboxRoot._error) return;
        try {
          result = callback.apply(sandboxRoot._this, arguments);
          events.emit('finishCallback');
        } catch (err) {
          var wrappedErr = wrapError(err);
          sandbox._error = wrappedErr;
          return done(wrappedErr);
        }
      };
    }
    try {
      result = asyncFunction.apply(sandboxRoot._this, args);
    } catch(err) {
      var wrappedErr = wrapError(err);
      sandbox._error = wrappedErr;
      return done(wrappedErr);
    }

    if(result !== undefined) {
      if(isPromise(result)) {
        return wrapPromise(result, sandbox, events, done, sandboxRoot);
      } else {
        return result;
      }
    }
  };
}

function wrapAsyncFunctions(asyncFunctions, sandbox, events, done, sandboxRoot) {
  if (!sandboxRoot) sandboxRoot = sandbox;