Function ref

test/angular/1.2/angular.js:11815–11826

(value)

  var ref = function(value) {
    if (isPromiseLike(value)) return value;
    return {
      then: function(callback) {
        var result = defer();
        nextTick(function() {
          result.resolve(callback(value));
        });
        return result.promise;
      }
    };
  };


  /**