refactor: move angular source to /packages rather than modules/@angular

packages/platform-browser/src/browser/tools/tools.ts

@@ -0,0 +1,41 @@
+/**
+ * @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 {ComponentRef} from '@angular/core';
+import {getDOM} from '../../dom/dom_adapter';
+
+import {AngularProfiler} from './common_tools';
+
+const PROFILER_GLOBAL_NAME = 'ng.profiler';
+
+/**
+ * Enabled Angular debug tools that are accessible via your browser's
+ * developer console.
+ *
+ * Usage:
+ *
+ * 1. Open developer console (e.g. in Chrome Ctrl + Shift + j)
+ * 1. Type `ng.` (usually the console will show auto-complete suggestion)
+ * 1. Try the change detection profiler `ng.profiler.timeChangeDetection()`
+ *    then hit Enter.
+ *
+ * @experimental All debugging apis are currently experimental.
+ */
+export function enableDebugTools<T>(ref: ComponentRef<T>): ComponentRef<T> {
+  getDOM().setGlobalVar(PROFILER_GLOBAL_NAME, new AngularProfiler(ref));
+  return ref;
+}
+
+/**
+ * Disables Angular tools.
+ *
+ * @experimental All debugging apis are currently experimental.
+ */
+export function disableDebugTools(): void {
+  getDOM().setGlobalVar(PROFILER_GLOBAL_NAME, null);
+}