add rust 2021 default notification

Author: lqd

ui/frontend/Notifications.tsx

@@ -9,30 +9,29 @@ import * as selectors from './selectors';
 
 import styles from './Notifications.module.css';
 
-const SURVEY_URL = 'https://blog.rust-lang.org/2020/09/10/survey-launch.html';
+const EDITION_URL = 'https://doc.rust-lang.org/edition-guide/';
 
 const Notifications: React.SFC = () => {
   return (
     <Portal>
       <div className={styles.container}>
-        <Rust2020SurveyNotification />
+        <Rust2021IsDefaultNotification />
       </div>
     </Portal>
   );
 };
 
-const Rust2020SurveyNotification: React.SFC = () => {
-  const showRust2020Survey = useSelector(selectors.showRustSurvey2020Selector);
+const Rust2021IsDefaultNotification: React.SFC = () => {
+  const showRust2021IsDefault = useSelector(selectors.showRust2021IsDefaultSelector);
 
   const dispatch = useDispatch();
-  const seenRustSurvey2020 = useCallback(() => dispatch(actions.seenRustSurvey2020()), [dispatch]);
-
-  return showRust2020Survey && (
-    <Notification onClose={seenRustSurvey2020}>
-      We want to know your opinions! Your responses to
-      the <a href={SURVEY_URL}>2020 State of Rust Survey</a> will
-      help the project understand its strengths and weaknesses
-      and establish development priorities for the future!
+  const seenRust2021IsDefault = useCallback(() => dispatch(actions.seenRust2021IsDefault()), [dispatch]);
+
+  return showRust2021IsDefault && (
+    <Notification onClose={seenRust2021IsDefault}>
+      As of Rust 1.56, the default edition of Rust is now Rust
+      2021. Learn more about editions in the <a href={EDITION_URL}>Edition Guide</a>.
+      To specify which edition to use, use the advanced compilation options menu.
     </Notification>
   );
 };

ui/frontend/actions.ts

@@ -708,7 +708,7 @@ export function performVersionsLoad(): ThunkAction {
 const notificationSeen = (notification: Notification) =>
   createAction(ActionType.NotificationSeen, { notification });
 
-export const seenRustSurvey2020 = () => notificationSeen(Notification.RustSurvey2020);
+export const seenRust2021IsDefault = () => notificationSeen(Notification.Rust2021IsDefault);
 
 export const browserWidthChanged = (isSmall: boolean) =>
   createAction(ActionType.BrowserWidthChanged, { isSmall });

ui/frontend/reducers/notifications.ts

@@ -4,21 +4,23 @@ import { Notification } from '../types';
 interface State {
   seenRustSurvey2018: boolean; // expired
   seenRust2018IsDefault: boolean; // expired
-  seenRustSurvey2020: boolean;
+  seenRustSurvey2020: boolean; // expired
+  seenRust2021IsDefault: boolean;
 }
 
 const DEFAULT: State = {
   seenRustSurvey2018: true,
   seenRust2018IsDefault: true,
-  seenRustSurvey2020: false,
+  seenRustSurvey2020: true,
+  seenRust2021IsDefault: false,
 };
 
 export default function notifications(state = DEFAULT, action: Action): State {
   switch (action.type) {
     case ActionType.NotificationSeen: {
       switch (action.notification) {
-        case Notification.RustSurvey2020: {
-          return { ...state, seenRustSurvey2020: true };
+        case Notification.Rust2021IsDefault: {
+          return { ...state, seenRust2021IsDefault: true };
         }
       }
     }

ui/frontend/selectors/index.ts

@@ -249,15 +249,15 @@ export const codeUrlSelector = createSelector(
 const notificationsSelector = (state: State) => state.notifications;
 
 const NOW = new Date();
-const RUST_SURVEY_2020_END = new Date('2020-09-24T23:59:59Z');
-const RUST_SURVEY_2020_OPEN = NOW <= RUST_SURVEY_2020_END;
-export const showRustSurvey2020Selector = createSelector(
+const RUST_2021_DEFAULT_END = new Date('2022-01-01T00:00:00Z');
+const RUST_2021_DEFAULT_OPEN = NOW <= RUST_2021_DEFAULT_END;
+export const showRust2021IsDefaultSelector = createSelector(
   notificationsSelector,
-  notifications => RUST_SURVEY_2020_OPEN && !notifications.seenRustSurvey2020,
+  notifications => RUST_2021_DEFAULT_OPEN && !notifications.seenRust2021IsDefault,
 );
 
 export const anyNotificationsToShowSelector = createSelector(
-  showRustSurvey2020Selector,
+  showRust2021IsDefaultSelector,
   allNotifications => allNotifications,
 );
 

ui/frontend/types.ts

@@ -119,7 +119,7 @@ export enum Focus {
 }
 
 export enum Notification {
-  RustSurvey2020 = 'rust-survey-2020',
+  Rust2021IsDefault = 'rust-2021-is-default',
 }
 
 export type AceResizeKey = [Focus, number];