1 files changed, 10 insertions, 2 deletions

diff --git a/subprojects/frontend/src/xtext/HighlightingService.ts b/subprojects/frontend/src/xtext/HighlightingService.ts
index 447f1401..eacee117 100644
--- a/subprojects/frontend/src/xtext/HighlightingService.ts
+++ b/subprojects/frontend/src/xtext/HighlightingService.ts
@@ -10,6 +10,8 @@ import type { IHighlightRange } from '../editor/semanticHighlighting';
 import type UpdateService from './UpdateService';
 import { highlightingResult } from './xtextServiceResults';
 
+const TYPE_HASH_HEX_PREFIX = 'typeHash-_';
+
 export default class HighlightingService {
   constructor(
     private readonly store: EditorStore,
@@ -20,6 +22,7 @@ export default class HighlightingService {
     const { regions } = highlightingResult.parse(push);
     const allChanges = this.updateService.computeChangesSinceLastUpdate();
     const ranges: IHighlightRange[] = [];
+    const hexTypeHashes = new Set<string>();
     regions.forEach(({ offset, length, styleClasses }) => {
       if (styleClasses.length === 0) {
         return;
@@ -34,11 +37,16 @@ export default class HighlightingService {
         to,
         classes: styleClasses,
       });
+      styleClasses.forEach((styleClass) => {
+        if (styleClass.startsWith(TYPE_HASH_HEX_PREFIX)) {
+          hexTypeHashes.add(styleClass.substring(TYPE_HASH_HEX_PREFIX.length));
+        }
+      });
     });
-    this.store.updateSemanticHighlighting(ranges);
+    this.store.updateSemanticHighlighting(ranges, Array.from(hexTypeHashes));
   }
 
   onDisconnect(): void {
-    this.store.updateSemanticHighlighting([]);
+    this.store.updateSemanticHighlighting([], []);
   }
 }