/**
 * Maintains a stack of the current service in scope.
 * This is used to provide the correct service to spawn().
 */
var serviceStack = [];
var provide = function (service, fn) {
  serviceStack.push(service);
  var result = fn(service);
  serviceStack.pop();
  return result;
};
var consume = function (fn) {
  return fn(serviceStack[serviceStack.length - 1]);
};

export { consume, provide };