@ngxs/store - npm Package Compare versions

Comparing version 2.0.0-dev.d07c910 to 2.0.0-dev.d110e8b

bundles/ngxs-store.umd.js

 (function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('rxjs/BehaviorSubject'), require('rxjs/Observable'), require('rxjs/operators'), require('rxjs/observable/forkJoin'), require('rxjs/operators/map'), require('rxjs/observable/fromPromise'), require('rxjs/observable/of')) :
-	typeof define === 'function' && define.amd ? define('@ngxs/store', ['exports', '@angular/core', 'rxjs/BehaviorSubject', 'rxjs/Observable', 'rxjs/operators', 'rxjs/observable/forkJoin', 'rxjs/operators/map', 'rxjs/observable/fromPromise', 'rxjs/observable/of'], factory) :
-	(factory((global.ngxs = global.ngxs || {}, global.ngxs.store = {}),global.ng.core,global.Rx,global.Rx,global.Rx.Observable.prototype,global.Rx.Observable,global.Rx.Observable.prototype,global.Rx.Observable,global.Rx.Observable));
-}(this, (function (exports,core,BehaviorSubject,Observable,operators,forkJoin,map,fromPromise,of) { 'use strict';
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('rxjs/Subject'), require('rxjs/BehaviorSubject'), require('rxjs/Observable'), require('rxjs/operators'), require('rxjs/observable/forkJoin'), require('rxjs/operators/map'), require('rxjs/observable/fromPromise'), require('rxjs/observable/of')) :
+	typeof define === 'function' && define.amd ? define('@ngxs/store', ['exports', '@angular/core', 'rxjs/Subject', 'rxjs/BehaviorSubject', 'rxjs/Observable', 'rxjs/operators', 'rxjs/observable/forkJoin', 'rxjs/operators/map', 'rxjs/observable/fromPromise', 'rxjs/observable/of'], factory) :
+	(factory((global.ngxs = global.ngxs || {}, global.ngxs.store = {}),global.ng.core,global.Rx,global.Rx,global.Rx,global.Rx.Observable.prototype,global.Rx.Observable,global.Rx.Observable.prototype,global.Rx.Observable,global.Rx.Observable));
+}(this, (function (exports,core,Subject,BehaviorSubject,Observable,operators,forkJoin,map,fromPromise,of) { 'use strict';
 
@@ -365,3 +365,3 @@ /*! *****************************************************************************
     function Actions(parent) {
-        var _this = _super.call(this, {}) || this;
+        var _this = _super.call(this) || this;
         if (parent) {
@@ -373,3 +373,3 @@ Object.assign(_this, parent);
     return Actions;
-}(BehaviorSubject.BehaviorSubject));
+}(Subject.Subject));
 Actions.decorators = [
@@ -474,3 +474,8 @@ { type: core.Injectable },
         }
-        return this._stateStream.pipe(map.map(selector), operators.distinctUntilChanged());
+        return this._stateStream.pipe(map.map(selector), operators.catchError(function (err) {
+            if (err instanceof TypeError) {
+                return of.of(undefined);
+            }
+            throw err;
+        }), operators.distinctUntilChanged());
     };
@@ -500,3 +505,3 @@ Store.prototype.selectOnce = function (selector) {
         var results = this._storeFactory.invokeActions(function () { return _this._stateStream.getValue(); }, function (newState) { return _this._stateStream.next(newState); }, function (actions) { return _this.dispatch(actions); }, action);
-        return results.length ? forkJoin.forkJoin(this._handleNesting(results)) : of.of({});
+        return (results.length ? forkJoin.forkJoin(this._handleNesting(results)) : of.of({})).pipe(operators.shareReplay());
     };
@@ -605,2 +610,8 @@ Store.prototype._handleNesting = function (eventResults) {
 InitState.type = '@@INIT';
+var UpdateState = /** @class */ (function () {
+    function UpdateState() {
+    }
+    return UpdateState;
+}());
+UpdateState.type = '@@UPDATE_STATE';
 var NgxsRootModule = /** @class */ (function () {
@@ -638,2 +649,3 @@ function NgxsRootModule(_factory, _stateStream, store, select, states) {
         this.initStates(flattenedStates);
+        store.dispatch(new UpdateState());
     }
@@ -781,3 +793,3 @@ NgxsFeatureModule.prototype.initStates = function (stores) {
     return function (target, key, descriptor) {
-        var metadata = target[META_KEY];
+        var metadata = ensureStoreMetadata(target);
         if (descriptor.value !== null) {
@@ -787,3 +799,11 @@ var prev_1 = descriptor.value;
                 var local = getValue(state, metadata.path);
-                return prev_1(local);
+                try {
+                    return prev_1(local);
+                }
+                catch (ex) {
+                    if (ex instanceof TypeError) {
+                        return undefined;
+                    }
+                    throw ex;
+                }
             };
@@ -816,2 +836,4 @@ return {
 exports.getValue = getValue;
+exports.InitState = InitState;
+exports.UpdateState = UpdateState;
 exports.ɵb = NgxsFeatureModule;
@@ -818,0 +840,0 @@ exports.ɵa = NgxsRootModule;

bundles/ngxs-store.umd.min.js

@@ -1,2 +0,2 @@
-!function(t,r){"object"==typeof exports&&"undefined"!=typeof module?r(exports,require("@angular/core"),require("rxjs/BehaviorSubject"),require("rxjs/Observable"),require("rxjs/operators"),require("rxjs/observable/forkJoin"),require("rxjs/operators/map"),require("rxjs/observable/fromPromise"),require("rxjs/observable/of")):"function"==typeof define&&define.amd?define("@ngxs/store",["exports","@angular/core","rxjs/BehaviorSubject","rxjs/Observable","rxjs/operators","rxjs/observable/forkJoin","rxjs/operators/map","rxjs/observable/fromPromise","rxjs/observable/of"],r):r((t.ngxs=t.ngxs||{},t.ngxs.store={}),t.ng.core,t.Rx,t.Rx,t.Rx.Observable.prototype,t.Rx.Observable,t.Rx.Observable.prototype,t.Rx.Observable,t.Rx.Observable)}(this,function(t,r,e,u,o,n,a,c,i){"use strict";var s=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,r){t.__proto__=r}||function(t,r){for(var e in r)r.hasOwnProperty(e)&&(t[e]=r[e])};function f(t,r){function e(){this.constructor=t}s(t,r),t.prototype=null===r?Object.create(r):(e.prototype=r.prototype,new e)}function m(t){var r="function"==typeof Symbol&&t[Symbol.iterator],e=0;return r?r.call(t):{next:function(){return t&&e>=t.length&&(t=void 0),{value:t&&t[e++],done:!t}}}}function p(t,r){var e="function"==typeof Symbol&&t[Symbol.iterator];if(!e)return t;var n,o,a=e.call(t),i=[];try{for(;(void 0===r||0<r--)&&!(n=a.next()).done;)i.push(n.value)}catch(s){o={error:s}}finally{try{n&&!n.done&&(e=a["return"])&&e.call(a)}finally{if(o)throw o.error}}return i}function S(){for(var t=[],r=0;r<arguments.length;r++)t=t.concat(p(arguments[r]));return t}var l=new r.InjectionToken("ROOT_STATE_TOKEN"),h=new r.InjectionToken("FEATURE_STATE_TOKEN"),j="NGXS_META",y=new r.InjectionToken("NGXS_PLUGINS");function d(t){if(!t.hasOwnProperty(j)){Object.defineProperty(t,j,{value:{name:null,actions:{},defaults:{},path:null,children:[]}})}return t[j]}function v(t){for(var r=t,e="store."+r[0],n=0,o=r.length,a=e;++n<o;)a=a+" && "+(e=e+"."+r[n]);return new Function("store","return "+a+";")}function b(t){return t.constructor.type?t.constructor.type:t.constructor.name?t.constructor.name:t.type?t.type:void 0}var g=function(t,r,e){t=Object.assign({},t);var n=r.split("."),o=n[n.length-1];return n.reduce(function(t,r){return t[r]=r===o?e:Object.assign({},t[r]),t&&t[r]},t),t},_=function(t,r){return r.split(".").reduce(function(t,r){return t&&t[r]},t)},x=function(){function t(t,r){this._injector=t,this._parentFactory=r,this._states=[]}return Object.defineProperty(t.prototype,"states",{get:function(){return this._parentFactory?this._parentFactory.states:this._states},enumerable:!0,configurable:!0}),t.prototype.add=function(t){Array.isArray(t)||(t=[t]);var e,a,n,o,i,s,r,u,c,f=(a=function(r){var t=e.find(function(t){return t===r});if(!t)throw new Error("Child state not found: "+r);if(!t[j])throw new Error("States must be decorated with @State() decorator");return t[j].name},(e=t).reduce(function(t,r){if(!r[j])throw new Error("States must be decorated with @State() decorator");var e=r[j],n=e.name,o=e.children;return t[n]=(o||[]).map(a),t},{})),p=(n=f,o=[],i={},s=function(r,e){void 0===e&&(e=[]),Array.isArray(e)||(e=[]),e.push(r),i[r]=!0,n[r].forEach(function(t){if(0<=e.indexOf(t))throw new Error("Circular dependency '"+t+"' is required by '"+r+"': "+e.join(" -> "));i[t]||s(t,e.slice(0))}),o.indexOf(r)<0&&o.push(r)},Object.keys(n).forEach(function(t){return s(t)}),o.reverse()),l=function(t,r){void 0===r&&(r={});var o=function(t,r){for(var e in t)if(t.hasOwnProperty(e)&&0<=t[e].indexOf(r)){var n=o(t,e);return null!==n?n+"."+e:e}return null};for(var e in t)if(t.hasOwnProperty(e)){var n=o(t,e);r[e]=n?n+"."+e:e}return r}(f),h=t.reduce(function(t,r){if(!r[j])throw new Error("States must be decorated with @State() decorator");return t[r[j].name]=r,t},{}),y=[],d=function(r){var t=h[r];if(!t[j])throw new Error("States must be decorated with @State() decorator");var e,n=l[r],o=t[j].actions,a=t[j].defaults;if(t[j].path=n,v.states.find(function(t){return t.name===r}))throw new Error("Store has already been added: "+r);Array.isArray(a)?a=S(a):"object"==typeof(e=a)&&null!==e||"function"==typeof e?a=Object.assign({},a):a===undefined&&(a={});var i=v._injector.get(t);y.push({actions:o,instance:i,defaults:a,name:r,depth:n})},v=this;try{for(var b=m(p),g=b.next();!g.done;g=b.next()){d(g.value)}}catch(_){r={error:_}}finally{try{g&&!g.done&&(u=b["return"])&&u.call(b)}finally{if(r)throw r.error}}return(c=this.states).push.apply(c,S(y)),y},t.prototype.addAndReturnDefaults=function(t){return this.add(t).reduce(function(t,r){return g(t,r.depth,r.defaults)},{})},t.prototype.invokeActions=function(p,l,h,y){var t,r,d=[],e=function(o){var t,r,e=b(y),n=o.actions[e];if(n)try{for(var a=m(n),i=a.next();!i.done;i=a.next()){var s=i.value,u={getState:function(){var t=p();return _(t,o.depth)},patchState:function(t){if(Array.isArray(t))throw new Error("Patching arrays is not supported.");var r=p(),e=_(r,o.depth);for(var n in t)e[n]=t[n];return r=g(r,o.depth,Object.assign({},e)),l(r),r},setState:function(t){var r=p();return r=g(r,o.depth,t),l(r),r},dispatch:function(t){return h(t)}},c=o.instance[s.fn](u,y);c&&d.push(c)}}catch(f){t={error:f}}finally{try{i&&!i.done&&(r=a["return"])&&r.call(a)}finally{if(t)throw t.error}}};try{for(var n=m(this.states),o=n.next();!o.done;o=n.next()){e(o.value)}}catch(a){t={error:a}}finally{try{o&&!o.done&&(r=n["return"])&&r.call(n)}finally{if(t)throw t.error}}return d},t}();x.decorators=[{type:r.Injectable}],x.ctorParameters=function(){return[{type:r.Injector},{type:x,decorators:[{type:r.Optional},{type:r.SkipSelf}]}]};var w=function(e){function t(t){var r=e.call(this,{})||this;return t&&Object.assign(r,t),r}return f(t,e),t}(e.BehaviorSubject);w.decorators=[{type:r.Injectable}],w.ctorParameters=function(){return[{type:w,decorators:[{type:r.Optional},{type:r.SkipSelf}]}]};var O=function(e){return function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];return e.shift().apply(void 0,S(t,[function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];return O(e).apply(void 0,S(t))}]))}},A=function(e){function t(t){var r=e.call(this,{})||this;return t&&Object.assign(r,t),r}return f(t,e),t}(e.BehaviorSubject);A.decorators=[{type:r.Injectable}],A.ctorParameters=function(){return[{type:A,decorators:[{type:r.Optional},{type:r.SkipSelf}]}]};var P=function(){function t(t,r){this._parentManager=t,this._plugins=r,this.plugins=[],this.register()}return t.prototype.register=function(){var t;this._plugins&&(this.plugins=this._plugins.map(function(t){return t.handle?t.handle.bind(t):t}),this._parentManager&&(t=this._parentManager.plugins).push.apply(t,S(this.plugins)))},t}();P.decorators=[{type:r.Injectable}],P.ctorParameters=function(){return[{type:P,decorators:[{type:r.Optional},{type:r.SkipSelf}]},{type:Array,decorators:[{type:r.Inject,args:[y]},{type:r.Optional}]}]};var E=function(){function t(t,r,e,n,o){this._errorHandler=t,this._actions=r,this._storeFactory=e,this._pluginManager=n,this._stateStream=o}return t.prototype.dispatch=function(t){var r,e=this;return(r=Array.isArray(t)?n.forkJoin(t.map(function(t){return e._dispatch(t)})):this._dispatch(t)).pipe(o.catchError(function(t){return e._errorHandler.handleError(t),i.of(t)})),r.subscribe(),r},t.prototype.select=function(t){if(t[j]&&t[j].path){var r=v(t[j].path.split("."));return this._stateStream.pipe(a.map(r),o.distinctUntilChanged())}return this._stateStream.pipe(a.map(t),o.distinctUntilChanged())},t.prototype.selectOnce=function(t){return this.select(t).pipe(o.take(1))},t.prototype.subscribe=function(t){return this._stateStream.subscribe(t)},t.prototype._dispatch=function(t){var e=this,n=this._stateStream.getValue(),r=this._pluginManager.plugins;return O(S(r,[function(t,r){return t!==n&&e._stateStream.next(t),e._actions.next(r),e._dispatchActions(r).pipe(a.map(function(){return e._stateStream.getValue()}))}]))(n,t).pipe(o.shareReplay())},t.prototype._dispatchActions=function(t){var r=this,e=this._storeFactory.invokeActions(function(){return r._stateStream.getValue()},function(t){return r._stateStream.next(t)},function(t){return r.dispatch(t)},t);return e.length?n.forkJoin(this._handleNesting(e)):i.of({})},t.prototype._handleNesting=function(t){var r,e,n=[];try{for(var o=m(t),a=o.next();!a.done;a=o.next()){var i=a.value;i instanceof Promise&&(i=c.fromPromise(i)),i instanceof u.Observable&&n.push(i)}}catch(s){r={error:s}}finally{try{a&&!a.done&&(e=o["return"])&&e.call(o)}finally{if(r)throw r.error}}return n},t}();E.decorators=[{type:r.Injectable}],E.ctorParameters=function(){return[{type:r.ErrorHandler},{type:w},{type:x},{type:P},{type:A}]};var I=function(t){};I.store=undefined,I.decorators=[{type:r.Injectable}],I.ctorParameters=function(){return[{type:E}]};var k=function(){};k.type="@@INIT";var M=function(){function t(t,r,e,n,o){this._factory=t,this._stateStream=r,this.initStates(o),e.dispatch(new k)}return t.prototype.initStates=function(t){if(t){var r=this._factory.addAndReturnDefaults(t),e=this._stateStream.getValue();this._stateStream.next(Object.assign({},e,r))}},t}();M.decorators=[{type:r.NgModule}],M.ctorParameters=function(){return[{type:x},{type:A},{type:E},{type:I},{type:Array,decorators:[{type:r.Optional},{type:r.Inject,args:[l]}]}]};var N=function(){function t(t,r,e,n,o){this._stateStream=e,this._factory=n;var a=[].concat.apply([],S(o));this.initStates(a)}return t.prototype.initStates=function(t){if(t){var r=this._factory.addAndReturnDefaults(t),e=this._stateStream.getValue();this._stateStream.next(Object.assign({},e,r))}},t}();N.decorators=[{type:r.NgModule,args:[{}]}],N.ctorParameters=function(){return[{type:M},{type:E},{type:A},{type:x},{type:Array,decorators:[{type:r.Optional},{type:r.Inject,args:[h]}]}]};var R=function(){function t(){}return t.forRoot=function(t){return void 0===t&&(t=[]),{ngModule:M,providers:S([x,w,E,A,I,P],t,[{provide:l,useValue:t}])}},t.forFeature=function(t){return{ngModule:N,providers:S([x,P],t,[{provide:h,multi:!0,useValue:t}])}},t}();R.decorators=[{type:r.NgModule,args:[{}]}],R.ctorParameters=function(){return[]},t.NgxsModule=R,t.Action=function(l){return function(t,r,e){var n,o,a,i=d(t.constructor);Array.isArray(l)||(l=[l]);try{for(var s=m(l),u=s.next();!u.done;u=s.next()){var c=u.value,f=(n=c).type?n.type:n.name?n.name:void 0;i.actions[f]||(i.actions[f]=[]),i.actions[f].push({fn:r,type:f})}}catch(p){o={error:p}}finally{try{u&&!u.done&&(a=s["return"])&&a.call(s)}finally{if(o)throw o.error}}}},t.Store=E,t.State=function(n){return function(t){var r=d(t);if(t.__proto__.hasOwnProperty(j)){var e=t.__proto__[j];r.actions=Object.assign({},r.actions,e.actions)}if(r.children=n.children,r.defaults=n.defaults,r.name=n.name,!n.name)throw new Error("States must register a 'name' property")}},t.Select=function(n){for(var o=[],t=1;t<arguments.length;t++)o[t-1]=arguments[t];return function(t,r){var e="__"+r+"__selector";if(n||(n=r.lastIndexOf("$")===r.length-1?r.substring(0,r.length-1):r),t[e])throw new Error("You cannot use @Select decorator and a "+e+" property.");delete t[r]&&(Object.defineProperty(t,e,{writable:!0,enumerable:!1,configurable:!0}),Object.defineProperty(t,r,{get:function(){return this[e]||(this[e]=function(t){var r=I.store;if(!r)throw new Error("SelectFactory not connected to store!");return r.select(t)}.apply(this,["string"==typeof n?v(o.length?S([n],o):n.split(".")):n[j]&&n[j].path?v(n[j].path.split(".")):n]))},enumerable:!0,configurable:!0}))}},t.Actions=w,t.ofAction=function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];var e={};return t.forEach(function(t){return e[t.type||t.name]=!0}),o.filter(function(t){return e[t.constructor.type||t.constructor.name]})},t.Selector=function(){for(var i=[],t=0;t<arguments.length;t++)i[t]=arguments[t];return function(t,r,e){var n=t[j];if(null!==e.value){var o=e.value,a=function(t){var r=_(t,n.path);return o(r)};return{configurable:!0,get:function(){return function(a,i){var s=function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];var e=i?i.apply(this,t):t[0],n=s.cache;if(n.has(e))return n.get(e);var o=a.apply(this,t);return s.cache=n.set(e,o)||n,o};return s.cache=new WeakMap,s}.apply(null,S([a],i))}}}throw new Error("Selectors only work on methods")}},t.getActionTypeFromInstance=b,t.NGXS_PLUGINS=y,t.StateStream=A,t.setValue=g,t.getValue=_,t.ɵb=N,t.ɵa=M,t.ɵg=P,t.ɵc=I,t.ɵf=x,t.ɵe=h,t.ɵd=l,Object.defineProperty(t,"__esModule",{value:!0})});
+!function(t,r){"object"==typeof exports&&"undefined"!=typeof module?r(exports,require("@angular/core"),require("rxjs/Subject"),require("rxjs/BehaviorSubject"),require("rxjs/Observable"),require("rxjs/operators"),require("rxjs/observable/forkJoin"),require("rxjs/operators/map"),require("rxjs/observable/fromPromise"),require("rxjs/observable/of")):"function"==typeof define&&define.amd?define("@ngxs/store",["exports","@angular/core","rxjs/Subject","rxjs/BehaviorSubject","rxjs/Observable","rxjs/operators","rxjs/observable/forkJoin","rxjs/operators/map","rxjs/observable/fromPromise","rxjs/observable/of"],r):r((t.ngxs=t.ngxs||{},t.ngxs.store={}),t.ng.core,t.Rx,t.Rx,t.Rx,t.Rx.Observable.prototype,t.Rx.Observable,t.Rx.Observable.prototype,t.Rx.Observable,t.Rx.Observable)}(this,function(t,r,e,n,u,o,a,i,c,s){"use strict";var f=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,r){t.__proto__=r}||function(t,r){for(var e in r)r.hasOwnProperty(e)&&(t[e]=r[e])};function p(t,r){function e(){this.constructor=t}f(t,r),t.prototype=null===r?Object.create(r):(e.prototype=r.prototype,new e)}function m(t){var r="function"==typeof Symbol&&t[Symbol.iterator],e=0;return r?r.call(t):{next:function(){return t&&e>=t.length&&(t=void 0),{value:t&&t[e++],done:!t}}}}function l(t,r){var e="function"==typeof Symbol&&t[Symbol.iterator];if(!e)return t;var n,o,a=e.call(t),i=[];try{for(;(void 0===r||0<r--)&&!(n=a.next()).done;)i.push(n.value)}catch(s){o={error:s}}finally{try{n&&!n.done&&(e=a["return"])&&e.call(a)}finally{if(o)throw o.error}}return i}function S(){for(var t=[],r=0;r<arguments.length;r++)t=t.concat(l(arguments[r]));return t}var h=new r.InjectionToken("ROOT_STATE_TOKEN"),y=new r.InjectionToken("FEATURE_STATE_TOKEN"),j="NGXS_META",d=new r.InjectionToken("NGXS_PLUGINS");function v(t){if(!t.hasOwnProperty(j)){Object.defineProperty(t,j,{value:{name:null,actions:{},defaults:{},path:null,children:[]}})}return t[j]}function b(t){for(var r=t,e="store."+r[0],n=0,o=r.length,a=e;++n<o;)a=a+" && "+(e=e+"."+r[n]);return new Function("store","return "+a+";")}function g(t){return t.constructor.type?t.constructor.type:t.constructor.name?t.constructor.name:t.type?t.type:void 0}var _=function(t,r,e){t=Object.assign({},t);var n=r.split("."),o=n[n.length-1];return n.reduce(function(t,r){return t[r]=r===o?e:Object.assign({},t[r]),t&&t[r]},t),t},x=function(t,r){return r.split(".").reduce(function(t,r){return t&&t[r]},t)},w=function(){function t(t,r){this._injector=t,this._parentFactory=r,this._states=[]}return Object.defineProperty(t.prototype,"states",{get:function(){return this._parentFactory?this._parentFactory.states:this._states},enumerable:!0,configurable:!0}),t.prototype.add=function(t){Array.isArray(t)||(t=[t]);var e,a,n,o,i,s,r,u,c,f=(a=function(r){var t=e.find(function(t){return t===r});if(!t)throw new Error("Child state not found: "+r);if(!t[j])throw new Error("States must be decorated with @State() decorator");return t[j].name},(e=t).reduce(function(t,r){if(!r[j])throw new Error("States must be decorated with @State() decorator");var e=r[j],n=e.name,o=e.children;return t[n]=(o||[]).map(a),t},{})),p=(n=f,o=[],i={},s=function(r,e){void 0===e&&(e=[]),Array.isArray(e)||(e=[]),e.push(r),i[r]=!0,n[r].forEach(function(t){if(0<=e.indexOf(t))throw new Error("Circular dependency '"+t+"' is required by '"+r+"': "+e.join(" -> "));i[t]||s(t,e.slice(0))}),o.indexOf(r)<0&&o.push(r)},Object.keys(n).forEach(function(t){return s(t)}),o.reverse()),l=function(t,r){void 0===r&&(r={});var o=function(t,r){for(var e in t)if(t.hasOwnProperty(e)&&0<=t[e].indexOf(r)){var n=o(t,e);return null!==n?n+"."+e:e}return null};for(var e in t)if(t.hasOwnProperty(e)){var n=o(t,e);r[e]=n?n+"."+e:e}return r}(f),h=t.reduce(function(t,r){if(!r[j])throw new Error("States must be decorated with @State() decorator");return t[r[j].name]=r,t},{}),y=[],d=function(r){var t=h[r];if(!t[j])throw new Error("States must be decorated with @State() decorator");var e,n=l[r],o=t[j].actions,a=t[j].defaults;if(t[j].path=n,v.states.find(function(t){return t.name===r}))throw new Error("Store has already been added: "+r);Array.isArray(a)?a=S(a):"object"==typeof(e=a)&&null!==e||"function"==typeof e?a=Object.assign({},a):a===undefined&&(a={});var i=v._injector.get(t);y.push({actions:o,instance:i,defaults:a,name:r,depth:n})},v=this;try{for(var b=m(p),g=b.next();!g.done;g=b.next()){d(g.value)}}catch(_){r={error:_}}finally{try{g&&!g.done&&(u=b["return"])&&u.call(b)}finally{if(r)throw r.error}}return(c=this.states).push.apply(c,S(y)),y},t.prototype.addAndReturnDefaults=function(t){return this.add(t).reduce(function(t,r){return _(t,r.depth,r.defaults)},{})},t.prototype.invokeActions=function(p,l,h,y){var t,r,d=[],e=function(o){var t,r,e=g(y),n=o.actions[e];if(n)try{for(var a=m(n),i=a.next();!i.done;i=a.next()){var s=i.value,u={getState:function(){var t=p();return x(t,o.depth)},patchState:function(t){if(Array.isArray(t))throw new Error("Patching arrays is not supported.");var r=p(),e=x(r,o.depth);for(var n in t)e[n]=t[n];return r=_(r,o.depth,Object.assign({},e)),l(r),r},setState:function(t){var r=p();return r=_(r,o.depth,t),l(r),r},dispatch:function(t){return h(t)}},c=o.instance[s.fn](u,y);c&&d.push(c)}}catch(f){t={error:f}}finally{try{i&&!i.done&&(r=a["return"])&&r.call(a)}finally{if(t)throw t.error}}};try{for(var n=m(this.states),o=n.next();!o.done;o=n.next()){e(o.value)}}catch(a){t={error:a}}finally{try{o&&!o.done&&(r=n["return"])&&r.call(n)}finally{if(t)throw t.error}}return d},t}();w.decorators=[{type:r.Injectable}],w.ctorParameters=function(){return[{type:r.Injector},{type:w,decorators:[{type:r.Optional},{type:r.SkipSelf}]}]};var O=function(e){function t(t){var r=e.call(this)||this;return t&&Object.assign(r,t),r}return p(t,e),t}(e.Subject);O.decorators=[{type:r.Injectable}],O.ctorParameters=function(){return[{type:O,decorators:[{type:r.Optional},{type:r.SkipSelf}]}]};var A=function(e){return function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];return e.shift().apply(void 0,S(t,[function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];return A(e).apply(void 0,S(t))}]))}},E=function(e){function t(t){var r=e.call(this,{})||this;return t&&Object.assign(r,t),r}return p(t,e),t}(n.BehaviorSubject);E.decorators=[{type:r.Injectable}],E.ctorParameters=function(){return[{type:E,decorators:[{type:r.Optional},{type:r.SkipSelf}]}]};var P=function(){function t(t,r){this._parentManager=t,this._plugins=r,this.plugins=[],this.register()}return t.prototype.register=function(){var t;this._plugins&&(this.plugins=this._plugins.map(function(t){return t.handle?t.handle.bind(t):t}),this._parentManager&&(t=this._parentManager.plugins).push.apply(t,S(this.plugins)))},t}();P.decorators=[{type:r.Injectable}],P.ctorParameters=function(){return[{type:P,decorators:[{type:r.Optional},{type:r.SkipSelf}]},{type:Array,decorators:[{type:r.Inject,args:[d]},{type:r.Optional}]}]};var I=function(){function t(t,r,e,n,o){this._errorHandler=t,this._actions=r,this._storeFactory=e,this._pluginManager=n,this._stateStream=o}return t.prototype.dispatch=function(t){var r,e=this;return(r=Array.isArray(t)?a.forkJoin(t.map(function(t){return e._dispatch(t)})):this._dispatch(t)).pipe(o.catchError(function(t){return e._errorHandler.handleError(t),s.of(t)})),r.subscribe(),r},t.prototype.select=function(t){if(t[j]&&t[j].path){var r=b(t[j].path.split("."));return this._stateStream.pipe(i.map(r),o.distinctUntilChanged())}return this._stateStream.pipe(i.map(t),o.catchError(function(t){if(t instanceof TypeError)return s.of(undefined);throw t}),o.distinctUntilChanged())},t.prototype.selectOnce=function(t){return this.select(t).pipe(o.take(1))},t.prototype.subscribe=function(t){return this._stateStream.subscribe(t)},t.prototype._dispatch=function(t){var e=this,n=this._stateStream.getValue(),r=this._pluginManager.plugins;return A(S(r,[function(t,r){return t!==n&&e._stateStream.next(t),e._actions.next(r),e._dispatchActions(r).pipe(i.map(function(){return e._stateStream.getValue()}))}]))(n,t).pipe(o.shareReplay())},t.prototype._dispatchActions=function(t){var r=this,e=this._storeFactory.invokeActions(function(){return r._stateStream.getValue()},function(t){return r._stateStream.next(t)},function(t){return r.dispatch(t)},t);return(e.length?a.forkJoin(this._handleNesting(e)):s.of({})).pipe(o.shareReplay())},t.prototype._handleNesting=function(t){var r,e,n=[];try{for(var o=m(t),a=o.next();!a.done;a=o.next()){var i=a.value;i instanceof Promise&&(i=c.fromPromise(i)),i instanceof u.Observable&&n.push(i)}}catch(s){r={error:s}}finally{try{a&&!a.done&&(e=o["return"])&&e.call(o)}finally{if(r)throw r.error}}return n},t}();I.decorators=[{type:r.Injectable}],I.ctorParameters=function(){return[{type:r.ErrorHandler},{type:O},{type:w},{type:P},{type:E}]};var T=function(t){};T.store=undefined,T.decorators=[{type:r.Injectable}],T.ctorParameters=function(){return[{type:I}]};var k=function(){};k.type="@@INIT";var R=function(){};R.type="@@UPDATE_STATE";var M=function(){function t(t,r,e,n,o){this._factory=t,this._stateStream=r,this.initStates(o),e.dispatch(new k)}return t.prototype.initStates=function(t){if(t){var r=this._factory.addAndReturnDefaults(t),e=this._stateStream.getValue();this._stateStream.next(Object.assign({},e,r))}},t}();M.decorators=[{type:r.NgModule}],M.ctorParameters=function(){return[{type:w},{type:E},{type:I},{type:T},{type:Array,decorators:[{type:r.Optional},{type:r.Inject,args:[h]}]}]};var N=function(){function t(t,r,e,n,o){this._stateStream=e,this._factory=n;var a=[].concat.apply([],S(o));this.initStates(a),r.dispatch(new R)}return t.prototype.initStates=function(t){if(t){var r=this._factory.addAndReturnDefaults(t),e=this._stateStream.getValue();this._stateStream.next(Object.assign({},e,r))}},t}();N.decorators=[{type:r.NgModule,args:[{}]}],N.ctorParameters=function(){return[{type:M},{type:I},{type:E},{type:w},{type:Array,decorators:[{type:r.Optional},{type:r.Inject,args:[y]}]}]};var q=function(){function t(){}return t.forRoot=function(t){return void 0===t&&(t=[]),{ngModule:M,providers:S([w,O,I,E,T,P],t,[{provide:h,useValue:t}])}},t.forFeature=function(t){return{ngModule:N,providers:S([w,P],t,[{provide:y,multi:!0,useValue:t}])}},t}();q.decorators=[{type:r.NgModule,args:[{}]}],q.ctorParameters=function(){return[]},t.NgxsModule=q,t.Action=function(l){return function(t,r,e){var n,o,a,i=v(t.constructor);Array.isArray(l)||(l=[l]);try{for(var s=m(l),u=s.next();!u.done;u=s.next()){var c=u.value,f=(n=c).type?n.type:n.name?n.name:void 0;i.actions[f]||(i.actions[f]=[]),i.actions[f].push({fn:r,type:f})}}catch(p){o={error:p}}finally{try{u&&!u.done&&(a=s["return"])&&a.call(s)}finally{if(o)throw o.error}}}},t.Store=I,t.State=function(n){return function(t){var r=v(t);if(t.__proto__.hasOwnProperty(j)){var e=t.__proto__[j];r.actions=Object.assign({},r.actions,e.actions)}if(r.children=n.children,r.defaults=n.defaults,r.name=n.name,!n.name)throw new Error("States must register a 'name' property")}},t.Select=function(n){for(var o=[],t=1;t<arguments.length;t++)o[t-1]=arguments[t];return function(t,r){var e="__"+r+"__selector";if(n||(n=r.lastIndexOf("$")===r.length-1?r.substring(0,r.length-1):r),t[e])throw new Error("You cannot use @Select decorator and a "+e+" property.");delete t[r]&&(Object.defineProperty(t,e,{writable:!0,enumerable:!1,configurable:!0}),Object.defineProperty(t,r,{get:function(){return this[e]||(this[e]=function(t){var r=T.store;if(!r)throw new Error("SelectFactory not connected to store!");return r.select(t)}.apply(this,["string"==typeof n?b(o.length?S([n],o):n.split(".")):n[j]&&n[j].path?b(n[j].path.split(".")):n]))},enumerable:!0,configurable:!0}))}},t.Actions=O,t.ofAction=function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];var e={};return t.forEach(function(t){return e[t.type||t.name]=!0}),o.filter(function(t){return e[t.constructor.type||t.constructor.name]})},t.Selector=function(){for(var i=[],t=0;t<arguments.length;t++)i[t]=arguments[t];return function(t,r,e){var n=v(t);if(null!==e.value){var o=e.value,a=function(t){var r=x(t,n.path);try{return o(r)}catch(e){if(e instanceof TypeError)return undefined;throw e}};return{configurable:!0,get:function(){return function(a,i){var s=function(){for(var t=[],r=0;r<arguments.length;r++)t[r]=arguments[r];var e=i?i.apply(this,t):t[0],n=s.cache;if(n.has(e))return n.get(e);var o=a.apply(this,t);return s.cache=n.set(e,o)||n,o};return s.cache=new WeakMap,s}.apply(null,S([a],i))}}}throw new Error("Selectors only work on methods")}},t.getActionTypeFromInstance=g,t.NGXS_PLUGINS=d,t.StateStream=E,t.setValue=_,t.getValue=x,t.InitState=k,t.UpdateState=R,t.ɵb=N,t.ɵa=M,t.ɵg=P,t.ɵc=T,t.ɵf=w,t.ɵe=y,t.ɵd=h,Object.defineProperty(t,"__esModule",{value:!0})});
 //# sourceMappingURL=ngxs-store.umd.min.js.map

esm2015/ngxs-store.js

 import { InjectionToken, Injector, Injectable, SkipSelf, Optional, Inject, ErrorHandler, NgModule } from '@angular/core';
+import { Subject } from 'rxjs/Subject';
 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
@@ -458,5 +459,6 @@ import { Observable } from 'rxjs/Observable';
  * Action stream that is emitted anytime an action is dispatched.
+ *
  * You can listen to this in services to react without stores.
  */
-class Actions extends BehaviorSubject {
+class Actions extends Subject {
     /**
@@ -466,3 +468,3 @@ * @param {?} parent
     constructor(parent) {
-        super({});
+        super();
         if (parent) {
@@ -628,3 +630,10 @@ Object.assign(this, parent);
         }
-        return this._stateStream.pipe(map(selector), distinctUntilChanged());
+        return this._stateStream.pipe(map(selector), catchError(err => {
+            // if error is TypeError we swallow it to prevent usual errors with property access
+            if (err instanceof TypeError) {
+                return of(undefined);
+            }
+            // rethrow other errors
+            throw err;
+        }), distinctUntilChanged());
     }
@@ -670,3 +679,3 @@ /**
         const /** @type {?} */ results = this._storeFactory.invokeActions(() => this._stateStream.getValue(), newState => this._stateStream.next(newState), actions => this.dispatch(actions), action);
-        return results.length ? forkJoin(this._handleNesting(results)) : of({});
+        return (results.length ? forkJoin(this._handleNesting(results)) : of({})).pipe(shareReplay());
     }
@@ -781,2 +790,5 @@ /**
 InitState.type = '@@INIT';
+class UpdateState {
+}
+UpdateState.type = '@@UPDATE_STATE';
 
@@ -838,5 +850,7 @@ /**
         this._factory = _factory;
-        // since FEATURE_STATE_TOKEN is a multi token, we need to flatten it [[Feature1State, Feature2State], [Feature3State]]
+        // since FEATURE_STATE_TOKEN is a multi token, we need to
+        // flatten it [[Feature1State, Feature2State], [Feature3State]]
         const /** @type {?} */ flattenedStates = (/** @type {?} */ ([])).concat(...states);
         this.initStates(flattenedStates);
+        store.dispatch(new UpdateState());
     }
@@ -1027,3 +1041,3 @@ /**
     return (target, key, descriptor) => {
-        const /** @type {?} */ metadata = target[META_KEY];
+        const /** @type {?} */ metadata = ensureStoreMetadata(target);
         if (descriptor.value !== null) {
@@ -1033,3 +1047,13 @@ const /** @type {?} */ prev = descriptor.value;
                 const /** @type {?} */ local = getValue(state, metadata.path);
-                return prev(local);
+                // if the lambda tries to access a something on the state that doesn't exist, it will throw a TypeError.
+                // since this is quite usual behaviour, we simply return undefined if so.
+                try {
+                    return prev(local);
+                }
+                catch (/** @type {?} */ ex) {
+                    if (ex instanceof TypeError) {
+                        return undefined;
+                    }
+                    throw ex;
+                }
             };
@@ -1078,3 +1102,3 @@ return {
 
-export { NgxsModule, Action, Store, State, Select, Actions, ofAction, Selector, getActionTypeFromInstance, NGXS_PLUGINS, StateStream, setValue, getValue, NgxsFeatureModule as ɵb, NgxsRootModule as ɵa, PluginManager as ɵg, SelectFactory as ɵc, StateFactory as ɵf, FEATURE_STATE_TOKEN as ɵe, ROOT_STATE_TOKEN as ɵd };
+export { NgxsModule, Action, Store, State, Select, Actions, ofAction, Selector, getActionTypeFromInstance, NGXS_PLUGINS, StateStream, setValue, getValue, InitState, UpdateState, NgxsFeatureModule as ɵb, NgxsRootModule as ɵa, PluginManager as ɵg, SelectFactory as ɵc, StateFactory as ɵf, FEATURE_STATE_TOKEN as ɵe, ROOT_STATE_TOKEN as ɵd };
 //# sourceMappingURL=ngxs-store.js.map

esm5/ngxs-store.js

 import { __spread, __values, __extends } from 'tslib';
 import { InjectionToken, Injector, Injectable, SkipSelf, Optional, Inject, ErrorHandler, NgModule } from '@angular/core';
+import { Subject } from 'rxjs/Subject';
 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
@@ -308,3 +309,3 @@ import { Observable } from 'rxjs/Observable';
     function Actions(parent) {
-        var _this = _super.call(this, {}) || this;
+        var _this = _super.call(this) || this;
         if (parent) {
@@ -316,3 +317,3 @@ Object.assign(_this, parent);
     return Actions;
-}(BehaviorSubject));
+}(Subject));
 Actions.decorators = [
@@ -417,3 +418,8 @@ { type: Injectable },
         }
-        return this._stateStream.pipe(map(selector), distinctUntilChanged());
+        return this._stateStream.pipe(map(selector), catchError(function (err) {
+            if (err instanceof TypeError) {
+                return of(undefined);
+            }
+            throw err;
+        }), distinctUntilChanged());
     };
@@ -443,3 +449,3 @@ Store.prototype.selectOnce = function (selector) {
         var results = this._storeFactory.invokeActions(function () { return _this._stateStream.getValue(); }, function (newState) { return _this._stateStream.next(newState); }, function (actions) { return _this.dispatch(actions); }, action);
-        return results.length ? forkJoin(this._handleNesting(results)) : of({});
+        return (results.length ? forkJoin(this._handleNesting(results)) : of({})).pipe(shareReplay());
     };
@@ -548,2 +554,8 @@ Store.prototype._handleNesting = function (eventResults) {
 InitState.type = '@@INIT';
+var UpdateState = /** @class */ (function () {
+    function UpdateState() {
+    }
+    return UpdateState;
+}());
+UpdateState.type = '@@UPDATE_STATE';
 var NgxsRootModule = /** @class */ (function () {
@@ -581,2 +593,3 @@ function NgxsRootModule(_factory, _stateStream, store, select, states) {
         this.initStates(flattenedStates);
+        store.dispatch(new UpdateState());
     }
@@ -724,3 +737,3 @@ NgxsFeatureModule.prototype.initStates = function (stores) {
     return function (target, key, descriptor) {
-        var metadata = target[META_KEY];
+        var metadata = ensureStoreMetadata(target);
         if (descriptor.value !== null) {
@@ -730,3 +743,11 @@ var prev_1 = descriptor.value;
                 var local = getValue(state, metadata.path);
-                return prev_1(local);
+                try {
+                    return prev_1(local);
+                }
+                catch (ex) {
+                    if (ex instanceof TypeError) {
+                        return undefined;
+                    }
+                    throw ex;
+                }
             };
@@ -746,3 +767,3 @@ return {
 
-export { NgxsModule, Action, Store, State, Select, Actions, ofAction, Selector, getActionTypeFromInstance, NGXS_PLUGINS, StateStream, setValue, getValue, NgxsFeatureModule as ɵb, NgxsRootModule as ɵa, PluginManager as ɵg, SelectFactory as ɵc, StateFactory as ɵf, FEATURE_STATE_TOKEN as ɵe, ROOT_STATE_TOKEN as ɵd };
+export { NgxsModule, Action, Store, State, Select, Actions, ofAction, Selector, getActionTypeFromInstance, NGXS_PLUGINS, StateStream, setValue, getValue, InitState, UpdateState, NgxsFeatureModule as ɵb, NgxsRootModule as ɵa, PluginManager as ɵg, SelectFactory as ɵc, StateFactory as ɵf, FEATURE_STATE_TOKEN as ɵe, ROOT_STATE_TOKEN as ɵd };
 //# sourceMappingURL=ngxs-store.js.map

ngxs-store.metadata.json

@@ -1,1 +0,1 @@
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package.json

 {
   "name": "@ngxs/store",
-  "version": "2.0.0-dev.d07c910",
+  "version": "2.0.0-dev.d110e8b",
   "license": "MIT",
@@ -5,0 +5,0 @@ "peerDependencies": {

src/actions-stream.d.ts

@@ -1,8 +0,9 @@
-import { BehaviorSubject } from 'rxjs/BehaviorSubject';
+import { Subject } from 'rxjs/Subject';
 /**
  * Action stream that is emitted anytime an action is dispatched.
+ *
  * You can listen to this in services to react without stores.
  */
-export declare class Actions extends BehaviorSubject<any> {
+export declare class Actions extends Subject<any> {
     constructor(parent: Actions);
 }

src/plugin_api.d.ts

@@ -5,1 +5,2 @@ export { NgxsModule } from './module';
 export { getActionTypeFromInstance, setValue, getValue } from './utils';
+export { InitState, UpdateState } from './actions';

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