WIP

simulator/src/jack/listener/error.listener.ts

@@ -1,4 +1,10 @@
-import { ErrorListener, NoViableAltException, RecognitionException, Recognizer, Token } from "antlr4";
+import {
+  ErrorListener,
+  NoViableAltException,
+  RecognitionException,
+  Recognizer,
+  Token,
+} from "antlr4";
 import { JackCompilerError, LexerOrParserError } from "../error.js";
 interface LexerNoViableAltException {
   startIndex: number;
@@ -14,21 +20,28 @@ export class CustomErrorListener extends ErrorListener<any> {
     msg: string,
     e: RecognitionException | undefined,
   ) => {
-    if (offendingSymbol != null || e != null && e.offendingToken != null) {
-      const t = offendingSymbol ?? e!.offendingToken as Token;
+    if (offendingSymbol != null || (e != null && e.offendingToken != null)) {
+      const t = offendingSymbol ?? (e!.offendingToken as Token);
       this.errors.push(new LexerOrParserError(line, t.start, t.stop + 1, msg));
     } else if (e instanceof NoViableAltException) {
-      this.errors.push(new LexerOrParserError(line, e.startToken.start, e.startToken.stop + 1, msg));
-
+      this.errors.push(
+        new LexerOrParserError(
+          line,
+          e.startToken.start,
+          e.startToken.stop + 1,
+          msg,
+        ),
+      );
     }
     //antlr doesn't provide a class for LexerNoViableAltException atm. Once https://github.com/antlr/antlr4/pull/4711 is release we can change it
-    else if (e != null && 'startIndex' in e) {
+    else if (e != null && "startIndex" in e) {
       const err = e as LexerNoViableAltException;
-      this.errors.push(new LexerOrParserError(line, err.startIndex, err.startIndex + 1, msg));
+      this.errors.push(
+        new LexerOrParserError(line, err.startIndex, err.startIndex + 1, msg),
+      );
     } else {
       console.error("Don't know how to handle this error");
       throw new Error("Don't know how to handle this error");
     }
   };
 }
-