address review comments

babel · Oct 14, 2022 · 4f0e6ff · 4f0e6ff
1 parent f9e12dd
commit 4f0e6ff
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/packages/babel-parser/src/parser/statement.ts b/packages/babel-parser/src/parser/statement.ts
@@ -319,7 +319,7 @@ export default abstract class StatementParser extends ExpressionParser {
 
   startsUsingForOf(): boolean {
     const lookahead = this.lookahead();
-    if (lookahead.type === tt._of && lookahead.end - lookahead.start === 2) {
+    if (lookahead.type === tt._of && !lookahead.containsEsc) {
       // `using of` must start a for-lhs-of statement
       return false;
     } else {

diff --git a/packages/babel-parser/src/tokenizer/state.ts b/packages/babel-parser/src/tokenizer/state.ts
@@ -189,4 +189,7 @@ export type LookaheadState = {
   curPosition: () => Position;
   /* Used only in readToken_mult_modulo */
   inType: boolean;
+  // These boolean properties are not initialized in createLookaheadState()
+  // instead they will only be set by the tokenizer
+  containsEsc?: boolean;
 };