Enable crate autocomplete on use in Rust 2021

Author: shepmaster

ui/frontend/AdvancedEditor.tsx

@@ -1,9 +1,9 @@
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { connect } from 'react-redux';
-import { aceResizeKey } from './selectors';
+import { aceResizeKey, offerCrateAutocompleteOnUse } from './selectors';
 
 import State from './state';
-import { AceResizeKey, CommonEditorProps, Crate, Edition, PairCharacters, Position, Selection } from './types';
+import { AceResizeKey, CommonEditorProps, Crate, PairCharacters, Position, Selection } from './types';
 
 import styles from './Editor.module.css';
 
@@ -478,7 +478,7 @@ const mapStateToProps = (state: State) => {
     pairCharacters,
     keybinding: keybinding === 'ace' ? null : keybinding,
     resizeKey: aceResizeKey(state),
-    autocompleteOnUse: state.configuration.edition === Edition.Rust2018,
+    autocompleteOnUse: offerCrateAutocompleteOnUse(state),
   };
 };
 

ui/frontend/selectors/index.ts

@@ -303,3 +303,8 @@ export const aceResizeKey = createSelector(
   ratioGeneration,
   (focus, ratioGeneration): AceResizeKey => [focus, ratioGeneration],
 )
+
+export const offerCrateAutocompleteOnUse = createSelector(
+  editionSelector,
+  (edition) => edition !== Edition.Rust2015,
+);