build(aio): remove unused imports and local variables (#19682)

PR Close #19682

aio/src/app/documents/document.service.spec.ts

@@ -1,10 +1,7 @@
 import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
-import { Injector } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
 
-import { Observable } from 'rxjs/Observable';
 import { Subscription } from 'rxjs/Subscription';
-import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 
 import { LocationService } from 'app/shared/location.service';
 import { MockLocationService } from 'testing/location.service';

aio/src/app/embedded/api/api-list.component.spec.ts

@@ -1,4 +1,4 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 
 import { ApiListComponent } from './api-list.component';

aio/src/app/embedded/api/api-list.component.ts

@@ -13,7 +13,7 @@ import { ReplaySubject } from 'rxjs/ReplaySubject';
 import { combineLatest } from 'rxjs/observable/combineLatest';
 
 import { LocationService } from 'app/shared/location.service';
-import { ApiItem, ApiSection, ApiService } from './api.service';
+import { ApiSection, ApiService } from './api.service';
 
 import { Option } from 'app/shared/select/select.component';
 

aio/src/app/embedded/api/api.service.spec.ts

@@ -1,6 +1,6 @@
 import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
 import { Injector } from '@angular/core';
-import { TestBed, inject } from '@angular/core/testing';
+import { TestBed } from '@angular/core/testing';
 
 import { Logger } from 'app/shared/logger.service';
 

aio/src/app/embedded/code/code.component.ts

@@ -1,11 +1,9 @@
-import { Component, ElementRef, ViewChild, OnChanges, OnDestroy, Input } from '@angular/core';
+import { Component, ElementRef, ViewChild, OnChanges, Input } from '@angular/core';
 import { Logger } from 'app/shared/logger.service';
 import { PrettyPrinter } from './pretty-printer.service';
 import { CopierService } from 'app/shared/copier.service';
 import { MdSnackBar } from '@angular/material';
 
-const originalLabel = 'Copy Code';
-const copiedLabel = 'Copied!';
 const defaultLineNumsCount = 10; // by default, show linenums over this number
 
 /**

aio/src/app/embedded/contributor/contributor.service.spec.ts

@@ -3,7 +3,7 @@ import { Injector } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
 
 import { ContributorService } from './contributor.service';
-import { Contributor, ContributorGroup } from './contributors.model';
+import { ContributorGroup } from './contributors.model';
 
 describe('ContributorService', () => {
 

aio/src/app/embedded/current-location.component.spec.ts

@@ -1,4 +1,4 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { LocationService } from 'app/shared/location.service';
 import { MockLocationService } from 'testing/location.service';
 import { CurrentLocationComponent } from './current-location.component';

aio/src/app/embedded/live-example/live-example.component.spec.ts

@@ -1,6 +1,6 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
-import { Component, DebugElement, ElementRef } from '@angular/core';
+import { Component, DebugElement } from '@angular/core';
 import { Location } from '@angular/common';
 
 import { LiveExampleComponent, EmbeddedPlunkerComponent } from './live-example.component';
@@ -71,7 +71,6 @@ describe('LiveExampleComponent', () => {
 
   describe('when not embedded', () => {
     function getLiveExampleAnchor() { return getAnchors()[0]; }
-    function getDownloadAnchor() { return getAnchors()[1]; }
 
     it('should create LiveExampleComponent', () => {
       testComponent(() => {

aio/src/app/embedded/resource/resource-list.component.spec.ts

@@ -1,7 +1,6 @@
 import { ReflectiveInjector } from '@angular/core';
 import { PlatformLocation } from '@angular/common';
 
-import { Observable } from 'rxjs/Observable';
 import { of } from 'rxjs/observable/of';
 
 import { ResourceListComponent } from './resource-list.component';

aio/src/app/embedded/resource/resource.service.spec.ts

@@ -3,7 +3,7 @@ import { Injector } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
 
 import { ResourceService } from './resource.service';
-import { Category, SubCategory, Resource } from './resource.model';
+import { Category } from './resource.model';
 
 describe('ResourceService', () => {
 

aio/src/app/embedded/toc/toc.component.spec.ts

@@ -1,6 +1,6 @@
 import { Component, CUSTOM_ELEMENTS_SCHEMA, DebugElement } from '@angular/core';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
-import { By, DOCUMENT } from '@angular/platform-browser';
+import { By } from '@angular/platform-browser';
 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 import { asap } from 'rxjs/scheduler/asap';
 

aio/src/app/layout/doc-viewer/doc-viewer.component.spec.ts

@@ -1,11 +1,8 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
-import {
+import { Component, DebugElement, ElementRef, NgModule, OnInit, ViewChild } from '@angular/core';
-  Component, ComponentFactoryResolver, DebugElement,
-  ElementRef, Injector, NgModule, OnInit, ViewChild } from '@angular/core';
-import { By } from '@angular/platform-browser';
 import { DocViewerComponent } from './doc-viewer.component';
 import { DocumentContents } from 'app/documents/document.service';
-import { EmbeddedModule, embeddedComponents, EmbeddedComponents } from 'app/embedded/embedded.module';
+import { EmbeddedModule, EmbeddedComponents } from 'app/embedded/embedded.module';
 import { Title } from '@angular/platform-browser';
 import { TocService } from 'app/shared/toc.service';
 

aio/src/app/layout/doc-viewer/doc-viewer.component.ts

@@ -1,7 +1,7 @@
 import {
   Component, ComponentFactory, ComponentFactoryResolver, ComponentRef,
   DoCheck, ElementRef, EventEmitter, Injector, Input, OnDestroy,
-  Output, ViewEncapsulation
+  Output
 } from '@angular/core';
 
 import { EmbeddedComponents } from 'app/embedded/embedded.module';

aio/src/app/layout/nav-item/nav-item.component.spec.ts

@@ -1,6 +1,6 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
-import { SimpleChange, SimpleChanges, NO_ERRORS_SCHEMA } from '@angular/core';
+import { NO_ERRORS_SCHEMA } from '@angular/core';
 
 import { NavItemComponent } from './nav-item.component';
 import { NavigationNode } from 'app/navigation/navigation.model';

aio/src/app/layout/top-menu/top-menu.component.spec.ts

@@ -1,9 +1,9 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 
 import { TopMenuComponent } from './top-menu.component';
-import { NavigationService, NavigationViews, NavigationNode } from 'app/navigation/navigation.service';
+import { NavigationService, NavigationViews } from 'app/navigation/navigation.service';
 
 describe('TopMenuComponent', () => {
   let component: TopMenuComponent;

aio/src/app/navigation/navigation.service.ts

@@ -2,7 +2,6 @@ import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
 
 import { Observable } from 'rxjs/Observable';
-import { AsyncSubject } from 'rxjs/AsyncSubject';
 import { combineLatest } from 'rxjs/observable/combineLatest';
 import 'rxjs/add/operator/map';
 import 'rxjs/add/operator/publishLast';

aio/src/app/shared/custom-md-icon-registry.spec.ts

@@ -1,5 +1,5 @@
 import { MdIconRegistry } from '@angular/material';
-import { CustomMdIconRegistry, SVG_ICONS, SvgIconInfo } from './custom-md-icon-registry';
+import { CustomMdIconRegistry, SvgIconInfo } from './custom-md-icon-registry';
 
 describe('CustomMdIconRegistry', () => {
   it('should get the SVG element for a preloaded icon from the cache', () => {

aio/src/app/shared/location.service.ts

@@ -1,7 +1,6 @@
 import { Injectable } from '@angular/core';
 import { Location, PlatformLocation } from '@angular/common';
 
-import { Observable } from 'rxjs/Observable';
 import { ReplaySubject } from 'rxjs/ReplaySubject';
 import 'rxjs/add/operator/do';
 

aio/src/app/shared/scroll-spy.service.spec.ts

@@ -3,7 +3,7 @@ import { fakeAsync, tick } from '@angular/core/testing';
 import { DOCUMENT } from '@angular/platform-browser';
 
 import { ScrollService } from 'app/shared/scroll.service';
-import { ScrollItem, ScrollSpiedElement, ScrollSpiedElementGroup, ScrollSpyInfo, ScrollSpyService } from 'app/shared/scroll-spy.service';
+import { ScrollItem, ScrollSpiedElement, ScrollSpiedElementGroup, ScrollSpyService } from 'app/shared/scroll-spy.service';
 
 
 describe('ScrollSpiedElement', () => {
@@ -197,6 +197,7 @@ describe('ScrollSpyService', () => {
                            .and.callFake(() => actions.push('calibrate'));
 
       expect(onResizeSpy).not.toHaveBeenCalled();
+      expect(calibrateSpy).not.toHaveBeenCalled();
 
       scrollSpyService.spyOn([]);
       expect(actions).toEqual(['onResize', 'calibrate']);

aio/src/app/shared/select/select.component.spec.ts

@@ -1,5 +1,5 @@
 import { Component, DebugElement } from '@angular/core';
-import { async, ComponentFixture, TestBed, inject } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
 import { SelectComponent, Option } from './select.component';
 

aio/src/app/shared/toc.service.spec.ts

@@ -1,4 +1,4 @@
-import { ReflectiveInjector, SecurityContext } from '@angular/core';
+import { ReflectiveInjector } from '@angular/core';
 import { DOCUMENT, DomSanitizer, SafeHtml } from '@angular/platform-browser';
 import { Subject } from 'rxjs/Subject';
 
@@ -268,7 +268,6 @@ describe('TocService', () => {
     });
 
     it('should calculate and set id of heading without an id', () => {
-      const tocItem = lastTocList.find(item => item.title === 'H2 Two');
       const id = headings[2].getAttribute('id');
       expect(id).toEqual('h2-two');
     });

aio/src/app/shared/web-worker.ts

@@ -4,7 +4,7 @@ Use of this source code is governed by an MIT-style license that
 can be found in the LICENSE file at http://angular.io/license
 */
 
-import {NgZone, Injectable} from '@angular/core';
+import {NgZone} from '@angular/core';
 import {Observable} from 'rxjs/Observable';
 
 export interface WebWorkerMessage {

aio/src/app/sw-updates/sw-updates.service.ts

@@ -1,4 +1,4 @@
-import { Inject, Injectable, OnDestroy } from '@angular/core';
+import { Injectable, OnDestroy } from '@angular/core';
 import { NgServiceWorker } from '@angular/service-worker';
 import { Observable } from 'rxjs/Observable';
 import { Subject } from 'rxjs/Subject';

aio/tsconfig.json

@@ -8,6 +8,7 @@
     "moduleResolution": "node",
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
+    "noUnusedLocals": true,
     "target": "es5",
     "typeRoots": [
       "node_modules/@types"