Type check amp-access and make type checking mandatory for extensions.

ads/yieldmo.js

@@ -25,7 +25,7 @@ export function yieldmo(global, data) {
   const ymElem = global.document.createElement('div');
   ymElem.id = 'ym_' + data.ymid;
   ymElem.className = 'ym';
-  ymElem.dataset.ampEnabled = true;
+  ymElem.dataset['ampEnabled'] = true;
   global.document.getElementById('c').appendChild(ymElem);
 
   const ymJs = 'https://static.yieldmo.com/ym.amp1.js';

build-system/amp.extern.js

@@ -26,6 +26,12 @@
  */
 function JsonObject() {}
 
+/**
+ * Force the dataset property to be handled as a JsonObject.
+ * @type {!JsonObject}
+ */
+Element.prototype.dataset;
+
 /**
  * - n is the name.
  * - f is the function body of the extension.

build-system/tasks/compile.js

@@ -154,6 +154,8 @@ function compile(entryModuleFilenames, outputDir,
       'extensions/amp-bind/**/*.js',
       // Needed to access form impl from other extensions
       'extensions/amp-form/**/*.js',
+      // Needed for AccessService
+      'extensions/amp-access/**/*.js',
       // Needed to access UserNotificationManager from other extensions
       'extensions/amp-user-notification/**/*.js',
       'src/*.js',
@@ -283,6 +285,8 @@ function compile(entryModuleFilenames, outputDir,
           'build/patched-module/',
           // Can't seem to suppress `(0, win.eval)` suspicious code warning
           '3p/environment.js',
+          // Generated code.
+          'extensions/amp-access/0.1/access-expr-impl.js',
         ],
         jscomp_error: [],
       }

extensions/amp-access-laterpay/0.1/laterpay-impl.js

@@ -19,6 +19,7 @@ import {dev, user} from '../../../src/log';
 import {installStyles} from '../../../src/style-installer';
 import {installStylesForShadowRoot} from '../../../src/shadow-embed';
 import {getMode} from '../../../src/mode';
+import {dict} from '../../../src/utils/object';
 import {listen} from '../../../src/event-helper';
 import {removeChildren} from '../../../src/dom';
 import {timerFor} from '../../../src/services';
@@ -46,13 +47,13 @@ const DEFAULT_MESSAGES = {
 
 /**
  * @typedef {{
- *   articleTitleSelector: !string,
- *   configUrl: string=,
- *   articleId: string=,
- *   scrollToTopAfterAuth: boolean=,
- *   locale: string=,
- *   localeMessages: object=,
- *   sandbox: boolean=,
+ *   articleTitleSelector: string,
+ *   configUrl: (string|undefined),
+ *   articleId: (string|undefined),
+ *   scrollToTopAfterAuth: (boolean|undefined),
+ *   locale: (string|undefined),
+ *   localeMessages: (Object|undefined),
+ *   sandbox: (boolean|undefined),
  * }}
  */
 let LaterpayConfigDef;
@@ -76,35 +77,35 @@ let PurchaseOptionDef;
  *   access: boolean,
  *   apl: string,
  *   premiumcontent: !PurchaseOptionDef,
- *   timepasses: Array<PurchaseOptionDef>=,
- *   subscriptions: Array<PurchaseOptionDef>=
+ *   timepasses: (!Array<PurchaseOptionDef>|undefined),
+ *   subscriptions: (!Array<PurchaseOptionDef>|undefined)
  * }}
  */
 let PurchaseConfigDef;
 
 
 /**
- * @implements {AccessVendor}
+ * @implements {../../amp-access/0.1/access-vendor.AccessVendor}
  */
 export class LaterpayVendor {
 
   /**
-   * @param {!AccessService} accessService
+   * @param {!../../amp-access/0.1/amp-access.AccessService} accessService
    */
   constructor(accessService) {
     /** @const */
     this.ampdoc = accessService.ampdoc;
 
-    /** @const @private {!AccessService} */
+    /** @const @private {!../../amp-access/0.1/amp-access.AccessService} */
     this.accessService_ = accessService;
 
-    /** @private @const {!Viewport} */
+    /** @private @const {!../../../src/service/viewport-impl.Viewport} */
     this.viewport_ = viewportForDoc(this.ampdoc);
 
-    /** @const @private {!LaterpayConfigDef} */
+    /** @const @private {!JsonObject} For shape see LaterpayConfigDef */
     this.laterpayConfig_ = this.accessService_.getAdapterConfig();
 
-    /** @private {?PurchaseConfigDef} */
+    /** @private {?JsonObject} For shape see PurchaseConfigDef */
     this.purchaseConfig_ = null;
 
     /** @private {?Function} */
@@ -113,7 +114,7 @@ export class LaterpayVendor {
     /** @private {?Function} */
     this.alreadyPurchasedListener_ = null;
 
-    /** @const @private {!Array<function(!Event)>} */
+    /** @const @private {!Array<function()>} */
     this.purchaseOptionListeners_ = [];
 
     /** @private {!boolean} */
@@ -129,27 +130,27 @@ export class LaterpayVendor {
     this.purchaseButton_ = null;
 
     /** @private {string} */
-    this.currentLocale_ = this.laterpayConfig_.locale || 'en';
+    this.currentLocale_ = this.laterpayConfig_['locale'] || 'en';
 
-    /** @private {Object} */
-    this.i18n_ = Object.assign({}, DEFAULT_MESSAGES,
-        this.laterpayConfig_.localeMessages || {});
+    /** @private {!JsonObject} */
+    this.i18n_ = /** @type {!JsonObject} */ (Object.assign(dict(),
+        DEFAULT_MESSAGES, this.laterpayConfig_['localeMessages'] || dict()));
 
     /** @private {string} */
     this.purchaseConfigBaseUrl_ = this.getConfigUrl_() + CONFIG_BASE_PATH;
-    const articleId = this.laterpayConfig_.articleId;
+    const articleId = this.laterpayConfig_['articleId'];
     if (articleId) {
       this.purchaseConfigBaseUrl_ +=
         '&article_id=' + encodeURIComponent(articleId);
     }
 
-    /** @const @private {!Timer} */
+    /** @const @private {!../../../src/service/timer-impl.Timer} */
     this.timer_ = timerFor(this.ampdoc.win);
 
-    /** @const @private {!Vsync} */
+    /** @const @private {!../../../src/service/vsync-impl.Vsync} */
     this.vsync_ = vsyncFor(this.ampdoc.win);
 
-    /** @const @private {!Xhr} */
+    /** @const @private {!../../../src/service/xhr-impl.Xhr} */
     this.xhr_ = xhrFor(this.ampdoc.win);
 
     // Install styles.
@@ -169,10 +170,10 @@ export class LaterpayVendor {
   getConfigUrl_() {
     if (
       (getMode().localDev || getMode().development) &&
-      this.laterpayConfig_.configUrl
+      this.laterpayConfig_['configUrl']
     ) {
-      return this.laterpayConfig_.configUrl;
-    } else if (this.laterpayConfig_.sandbox) {
+      return this.laterpayConfig_['configUrl'];
+    } else if (this.laterpayConfig_['sandbox']) {
       return SANDBOX_CONFIG_URL;
     } else {
       return CONFIG_URL;
@@ -191,7 +192,7 @@ export class LaterpayVendor {
             'article, or no paid content configurations are setup.');
           }
 
-          if (this.laterpayConfig_.scrollToTopAfterAuth) {
+          if (this.laterpayConfig_['scrollToTopAfterAuth']) {
             this.vsync_.mutate(() => this.viewport_.setScrollTop(0));
           }
           this.emptyContainer_();
@@ -250,23 +251,23 @@ export class LaterpayVendor {
    */
   getArticleTitle_() {
     const title = this.ampdoc.getRootNode().querySelector(
-        this.laterpayConfig_.articleTitleSelector);
+        this.laterpayConfig_['articleTitleSelector']);
     user().assert(
         title, 'No article title element found with selector %s',
-        this.laterpayConfig_.articleTitleSelector);
+        this.laterpayConfig_['articleTitleSelector']);
     return title.textContent.trim();
   }
 
   /**
-   * @return {!Node}
+   * @return {!Element}
    * @private
    */
   getContainer_() {
     const id = TAG + '-dialog';
     const dialogContainer = this.ampdoc.getElementById(id);
-    return user().assert(
+    return user().assertElement(
         dialogContainer,
-        'No element found with id %s', id
+        'No element found with id ' + id
     );
   }
 
@@ -305,46 +306,48 @@ export class LaterpayVendor {
     const dialogContainer = this.getContainer_();
     this.innerContainer_ = this.createElement_('div');
     this.innerContainer_.className = TAG + '-container';
-    if (this.laterpayConfig_.sandbox) {
+    if (this.laterpayConfig_['sandbox']) {
       this.renderTextBlock_('sandbox');
     }
     this.renderTextBlock_('header');
     const listContainer = this.createElement_('ul');
-    this.purchaseConfig_.premiumcontent['tp_title'] =
-      this.i18n_.premiumContentTitle;
-    this.purchaseConfig_.premiumcontent.description = this.getArticleTitle_();
+    this.purchaseConfig_['premiumcontent']['tp_title'] =
+      this.i18n_['premiumContentTitle'];
+    this.purchaseConfig_['premiumcontent']['description'] =
+        this.getArticleTitle_();
     listContainer.appendChild(
-        this.createPurchaseOption_(this.purchaseConfig_.premiumcontent)
+        this.createPurchaseOption_(this.purchaseConfig_['premiumcontent'])
     );
-    this.purchaseConfig_.timepasses.forEach(timepass => {
+    this.purchaseConfig_['timepasses'].forEach(timepass => {
       listContainer.appendChild(this.createPurchaseOption_(timepass));
     });
-    this.purchaseConfig_.subscriptions.forEach(subscription => {
+    this.purchaseConfig_['subscriptions'].forEach(subscription => {
       listContainer.appendChild(this.createPurchaseOption_(subscription));
     });
     const purchaseButton = this.createElement_('button');
     purchaseButton.className = TAG + '-purchase-button';
-    purchaseButton.textContent = this.i18n_.defaultButton;
+    purchaseButton.textContent = this.i18n_['defaultButton'];
     this.purchaseButton_ = purchaseButton;
     this.purchaseButtonListener_ = listen(purchaseButton, 'click', ev => {
       const value = this.selectedPurchaseOption_.value;
-      const purchaseType = this.selectedPurchaseOption_.dataset.purchaseType;
+      const purchaseType = this.selectedPurchaseOption_.dataset['purchaseType'];
       this.handlePurchase_(ev, value, purchaseType);
     });
     this.innerContainer_.appendChild(listContainer);
     this.innerContainer_.appendChild(purchaseButton);
     this.innerContainer_.appendChild(
-        this.createAlreadyPurchasedLink_(this.purchaseConfig_.apl));
+        this.createAlreadyPurchasedLink_(this.purchaseConfig_['apl']));
     this.renderTextBlock_('footer');
     dialogContainer.appendChild(this.innerContainer_);
     dialogContainer.appendChild(this.createLaterpayBadge_());
     this.containerEmpty_ = false;
-    this.preselectFirstOption_(listContainer.firstElementChild);
+    this.preselectFirstOption_(
+        dev().assertElement(listContainer.firstElementChild));
   }
 
   /**
    * @private
-   * @param {!Node} firstOption
+   * @param {!Element} firstOption
    */
   preselectFirstOption_(firstOption) {
     const firstInput = firstOption.querySelector('input[type="radio"]');
@@ -367,7 +370,7 @@ export class LaterpayVendor {
 
   /**
    * @private
-   * @return {!Node}
+   * @return {!Element}
    */
   createLaterpayBadge_() {
     const a = this.createElement_('a');
@@ -382,42 +385,42 @@ export class LaterpayVendor {
   }
 
   /**
-   * @param {!PurchaseOptionDef} option
-   * @return {!Node}
+   * @param {!JsonObject} option Shape: PurchaseOptionDef
+   * @return {!Element}
    * @private
    */
   createPurchaseOption_(option) {
     const li = this.createElement_('li');
     const control = this.createElement_('label');
-    control.for = option.tp_title;
+    control.for = option['tp_title'];
     control.appendChild(this.createRadioControl_(option));
     const metadataContainer = this.createElement_('div');
     metadataContainer.className = TAG + '-metadata';
     const title = this.createElement_('span');
     title.className = TAG + '-title';
-    title.textContent = option.tp_title;
+    title.textContent = option['tp_title'];
     metadataContainer.appendChild(title);
     const description = this.createElement_('p');
     description.className = TAG + '-description';
-    description.textContent = option.description;
+    description.textContent = option['description'];
     metadataContainer.appendChild(description);
     control.appendChild(metadataContainer);
     li.appendChild(control);
-    li.appendChild(this.createPrice_(option.price));
+    li.appendChild(this.createPrice_(option['price']));
     return li;
   }
 
   /**
-   * @param {!PurchaseOptionDef} option
-   * @return {!Node}
+   * @param {!JsonObject} option Shape: PurchaseOptionDef
+   * @return {!Element}
    * @private
    */
   createRadioControl_(option) {
     const radio = this.createElement_('input');
     radio.name = 'purchaseOption';
     radio.type = 'radio';
-    radio.id = option.tp_title;
-    radio.value = option.purchase_url;
+    radio.id = option['tp_title'];
+    radio.value = option['purchase_url'];
     const purchaseType = option['purchase_type'] === 'ppu' ?
       'payLater' :
       'payNow';
@@ -432,7 +435,7 @@ export class LaterpayVendor {
 
   /**
    * @param {!Object<string, number>} price
-   * @return {!Node}
+   * @return {!Element}
    * @private
    */
   createPrice_(price) {
@@ -467,14 +470,14 @@ export class LaterpayVendor {
 
   /**
    * @param {!string} href
-   * @return {!Node}
+   * @return {!Element}
   */
   createAlreadyPurchasedLink_(href) {
     const p = this.createElement_('p');
     p.className = TAG + '-already-purchased-link-container';
     const a = this.createElement_('a');
     a.href = href;
-    a.textContent = this.i18n_.alreadyPurchasedLink;
+    a.textContent = this.i18n_['alreadyPurchasedLink'];
     this.alreadyPurchasedListener_ = listen(a, 'click', ev => {
       this.handlePurchase_(ev, href, 'alreadyPurchased');
     });
@@ -488,17 +491,17 @@ export class LaterpayVendor {
    */
   handlePurchaseOptionSelection_(ev) {
     ev.preventDefault();
-    this.selectPurchaseOption_(ev.target);
+    this.selectPurchaseOption_(dev().assertElement(ev.target));
   }
 
   /**
-   * @param {!Node} target
+   * @param {!Element} target
    * @private
    */
   selectPurchaseOption_(target) {
     const selectedOptionClassname = TAG + '-selected';
     const prevPurchaseOption = this.selectedPurchaseOption_;
-    const purchaseActionLabel = target.dataset.purchaseActionLabel;
+    const purchaseActionLabel = target.dataset['purchaseActionLabel'];
     if (prevPurchaseOption &&
         prevPurchaseOption.classList.contains(selectedOptionClassname)) {
       prevPurchaseOption.classList.remove(selectedOptionClassname);