From 6fcf962fb5f436f990b31726a2880289adf4d1ce Mon Sep 17 00:00:00 2001
From: vsavkin <avix1000@gmail.com>
Date: Wed, 6 Jul 2016 11:01:47 -0700
Subject: [PATCH] feat(core): add AddModuleFactoryLoader

---
 modules/@angular/core/src/linker.ts           |  2 +
 .../src/linker/app_module_factory_loader.ts   | 17 +++++
 .../system_js_app_module_factory_loader.ts    | 63 +++++++++++++++++++
 3 files changed, 82 insertions(+)
 create mode 100644 modules/@angular/core/src/linker/app_module_factory_loader.ts
 create mode 100644 modules/@angular/core/src/linker/system_js_app_module_factory_loader.ts

diff --git a/modules/@angular/core/src/linker.ts b/modules/@angular/core/src/linker.ts
index a300cb4bf5..0adbbcd9a6 100644
--- a/modules/@angular/core/src/linker.ts
+++ b/modules/@angular/core/src/linker.ts
@@ -8,6 +8,7 @@
 
 // Public API for compiler
 export {AppModuleFactory, AppModuleRef} from './linker/app_module_factory';
+export {AppModuleFactoryLoader} from './linker/app_module_factory_loader';
 export {Compiler} from './linker/compiler';
 export {ComponentFactory, ComponentRef} from './linker/component_factory';
 export {ComponentFactoryResolver, NoComponentFactoryError} from './linker/component_factory_resolver';
@@ -16,6 +17,7 @@ export {DynamicComponentLoader} from './linker/dynamic_component_loader';
 export {ElementRef} from './linker/element_ref';
 export {ExpressionChangedAfterItHasBeenCheckedException} from './linker/exceptions';
 export {QueryList} from './linker/query_list';
+export {SystemJsAppModuleFactoryLoader, SystemJsAppModuleLoader} from './linker/system_js_app_module_factory_loader';
 export {SystemJsCmpFactoryResolver, SystemJsComponentResolver} from './linker/systemjs_component_resolver';
 export {TemplateRef} from './linker/template_ref';
 export {ViewContainerRef} from './linker/view_container_ref';
diff --git a/modules/@angular/core/src/linker/app_module_factory_loader.ts b/modules/@angular/core/src/linker/app_module_factory_loader.ts
new file mode 100644
index 0000000000..30f506ceca
--- /dev/null
+++ b/modules/@angular/core/src/linker/app_module_factory_loader.ts
@@ -0,0 +1,17 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import {AppModuleFactory} from './app_module_factory';
+
+/**
+ * Used to load app moduled factories.
+ * @experimental
+ */
+export abstract class AppModuleFactoryLoader {
+  abstract load(path: string): Promise<AppModuleFactory<any>>;
+}
\ No newline at end of file
diff --git a/modules/@angular/core/src/linker/system_js_app_module_factory_loader.ts b/modules/@angular/core/src/linker/system_js_app_module_factory_loader.ts
new file mode 100644
index 0000000000..1f7d8334f3
--- /dev/null
+++ b/modules/@angular/core/src/linker/system_js_app_module_factory_loader.ts
@@ -0,0 +1,63 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+
+import {Injectable} from '../di';
+import {global} from '../facade/lang';
+
+import {AppModuleFactory} from './app_module_factory';
+import {AppModuleFactoryLoader} from './app_module_factory_loader';
+import {Compiler} from './compiler';
+
+const _SEPARATOR = '#';
+
+/**
+ * AppModuleFactoryLoader that uses SystemJS to load AppModule type and then compiles them.
+ * @experimental
+ */
+@Injectable()
+export class SystemJsAppModuleLoader implements AppModuleFactoryLoader {
+  constructor(private _compiler: Compiler) {}
+
+  load(path: string): Promise<AppModuleFactory<any>> {
+    let [module, exportName] = path.split(_SEPARATOR);
+    if (exportName === undefined) exportName = 'default';
+
+    return (<any>global)
+        .System.import(module)
+        .then((module: any) => module[exportName])
+        .then((type: any) => checkNotEmpty(type, module, exportName))
+        .then((type: any) => this._compiler.compileAppModuleAsync(type));
+  }
+}
+
+const FACTORY_MODULE_SUFFIX = '.ngfactory';
+const FACTORY_CLASS_SUFFIX = 'NgFactory';
+
+/**
+ * AppModuleFactoryLoader that uses SystemJS to load AppModuleFactories
+ * @experimental
+ */
+export class SystemJsAppModuleFactoryLoader implements AppModuleFactoryLoader {
+  load(path: string): Promise<AppModuleFactory<any>> {
+    let [module, exportName] = path.split(_SEPARATOR);
+    if (exportName === undefined) exportName = 'default';
+
+    return (<any>global)
+        .System.import(module + FACTORY_MODULE_SUFFIX)
+        .then((module: any) => module[exportName + FACTORY_CLASS_SUFFIX])
+        .then((factory: any) => checkNotEmpty(factory, module, exportName));
+  }
+}
+
+function checkNotEmpty(value: any, modulePath: string, exportName: string): any {
+  if (!value) {
+    throw new Error(`Cannot find '${exportName}' in '${modulePath}'`);
+  }
+  return value;
+}
\ No newline at end of file