fix(deps): properties with long arrow function declared

fix #706

src/app/compiler/angular/deps/helpers/class-helper.ts

@@ -920,6 +920,10 @@ export class ClassHelper {
         };
         let jsdoctags;
 
+        if (property.initializer && property.initializer.kind === SyntaxKind.ArrowFunction) {
+            result.defaultValue = '() => {...}';
+        }
+
         if (typeof result.name === 'undefined' && typeof property.name.expression !== 'undefined') {
             result.name = property.name.expression.text;
         }

test/src/cli/cli-generation-big-app.spec.ts

@@ -759,4 +759,9 @@ describe('CLI simple generation - big app', () => {
             'https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string'
         );
     });
+
+    it('shorten long arrow function declaration for properties', () => {
+        let file = read(distFolder + '/classes/Todo.html');
+        expect(file).to.contain('() &#x3D;&gt; {...}</code>');
+    });
 });

test/src/todomvc-ng2/src/app/shared/models/todo.model.ts

@@ -84,9 +84,20 @@ export class Todo extends Tada {
         return 5;
     }
 
-    abstract abstractMethod(input : string) : string;
+    abstract abstractMethod(input: string): string;
 
     async asyncMethod() {}
+
+    url2state = async <T>(defaults: Partial<T>) =>
+        await this.route.queryParamMap
+            .pipe(
+                /** use first to make sure this only runs at component init time */
+                first(),
+                map(r => {}),
+                catchError(e => {})
+            )
+            /** cast observable to promise */
+            .toPromise();
 }
 
 export type PopupPosition = ElementRef | HTMLElement;