greatly simplified app

src/App.tsx

@@ -6,14 +6,15 @@ import { CommandContext } from './CommandContext';
 import { EnvContext } from './EnvContext';
 
 export function App() {
-  const [history, setHistory] = useState([initialEditorState]);
+  // const [history, setHistory] = useState([initialEditorState]);
   // const [history, setHistory] = useState([nonEmptyEditorState]);
-  // const [history, setHistory] = useState([tripleFunctionCallEditorState]);
+  const [history, setHistory] = useState([tripleFunctionCallEditorState]);
 
   const [future, setFuture] = useState<EditorState[]>([]);
 
-  const pushHistory = (s: EditorState) => {
-    setHistory(history.concat([s]));
+  const pushHistory = (callback: (p: EditorState) => EditorState) => {
+    const newState = callback(history.at(-1)!);
+    setHistory(history.concat([newState]));
     setFuture([]);
   };
 
@@ -87,7 +88,6 @@ export function App() {
           <Editor
             state={history.at(-1)!}
             setState={pushHistory}
-            onResolve={() => {}}
             onCancel={() => {}}
             filter={() => true}
           />