Rename selector to reduce future confusion

Author: shepmaster

ui/frontend/AdvancedOptionsMenu.tsx

@@ -9,7 +9,7 @@ import * as selectors from './selectors';
 import { Backtrace, Edition } from './types';
 
 const AdvancedOptionsMenu: React.SFC = () => {
-  const isEditionSet = useSelector(selectors.getEditionSet);
+  const isEditionDefault = useSelector(selectors.isEditionDefault);
   const edition = useSelector((state: State) => state.configuration.edition);
   const isBacktraceSet = useSelector(selectors.getBacktraceSet);
   const backtrace = useSelector((state: State) => state.configuration.backtrace);
@@ -24,7 +24,7 @@ const AdvancedOptionsMenu: React.SFC = () => {
       <SelectConfig
         name="Edition"
         value={edition}
-        isNotDefault={isEditionSet}
+        isNotDefault={!isEditionDefault}
         onChange={changeEdition}
       >
         <option value={Edition.Rust2015}>2015</option>

ui/frontend/selectors/index.ts

@@ -119,19 +119,19 @@ export const getChannelLabel = (state: State) => {
   return `${channel}`;
 };
 
-export const getEditionSet = createSelector(
+export const isEditionDefault = createSelector(
   editionSelector,
-  edition => edition !== Edition.Rust2018,
+  edition => edition == Edition.Rust2018,
 );
 
 export const getBacktraceSet = (state: State) => (
   state.configuration.backtrace !== Backtrace.Disabled
 );
 
 export const getAdvancedOptionsSet = createSelector(
-  getEditionSet, getBacktraceSet,
-  (editionSet, backtraceSet) => (
-    editionSet || backtraceSet
+  isEditionDefault, getBacktraceSet,
+  (editionDefault, backtraceSet) => (
+    !editionDefault || backtraceSet
   ),
 );