text: 'use strict';var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
      if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
      switch (arguments.length) {
          case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
          case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
          case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
      }
  };
  var __metadata = (this && this.__metadata) || function (k, v) {
      if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
  };
  var metadata_1 = require('angular2/metadata');
  var core_1 = require('angular2/core');
  var lang_1 = require('angular2/src/core/facade/lang');
  /**
   * Removes or recreates a portion of the DOM tree based on an {expression}.
   *
   * If the expression assigned to `ng-if` evaluates to a false value then the element
   * is removed from the DOM, otherwise a clone of the element is reinserted into the DOM.
   *
   * # Example:
   *
   * ```
   * <div *ng-if="errorCount > 0" class="error">
   *   <!-- Error message displayed when the errorCount property on the current context is greater
   * than 0. -->
   *   {{errorCount}} errors detected
   * </div>
   * ```
   *
   * # Syntax
   *
   * - `<div *ng-if="condition">...</div>`
   * - `<div template="ng-if condition">...</div>`
   * - `<template [ng-if]="condition"><div>...</div></template>`
   */
  var NgIf = (function () {
      function NgIf(_viewContainer, _templateRef) {
          this._viewContainer = _viewContainer;
          this._templateRef = _templateRef;
          this._prevCondition = null;
      }
      Object.defineProperty(NgIf.prototype, "ngIf", {
          set: function (newCondition /* boolean */) {
              if (newCondition && (lang_1.isBlank(this._prevCondition) || !this._prevCondition)) {
                  this._prevCondition = true;
                  this._viewContainer.createEmbeddedView(this._templateRef);
              }
              else if (!newCondition && (lang_1.isBlank(this._prevCondition) || this._prevCondition)) {
                  this._prevCondition = false;
                  this._viewContainer.clear();
              }
          },
          enumerable: true,
          configurable: true
      });
      NgIf = __decorate([
          metadata_1.Directive({ selector: '[ng-if]', properties: ['ngIf'] }), 
          __metadata('design:paramtypes', [core_1.ViewContainerRef, core_1.TemplateRef])
      ], NgIf);
      return NgIf;
  })();
  exports.NgIf = NgIf;
  //# sourceMappingURL=ng_if.js.map