From 1a892d6261efaf5cac0ab9b8ae9cc505e91935b3 Mon Sep 17 00:00:00 2001
From: Weixie Cui <cuiweixie@gmail.com>
Date: Sun, 29 Mar 2026 13:44:25 +0800
Subject: [PATCH] fix(parse): use StarStar for ** precedence

Exponentiation is lexed as `TokenKind::StarStar`, not `BinOp(Star)`. Match
`StarStar` so chained `**` parses with right associativity as intended
---
 crates/parse/src/parser/expr.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/crates/parse/src/parser/expr.rs b/crates/parse/src/parser/expr.rs
index cd1259f59..bcade7c8d 100644
--- a/crates/parse/src/parser/expr.rs
+++ b/crates/parse/src/parser/expr.rs
@@ -49,10 +49,10 @@ impl<'sess, 'ast> Parser<'sess, 'ast> {
         while precedence >= min_precedence {
             while token_precedence(self.token) == precedence {
                 // Parse a**b**c as a**(b**c)
-                let next_precedence = if self.token.kind == TokenKind::BinOp(BinOpToken::Star) {
-                    precedence + 1
-                } else {
+                let next_precedence = if self.token.kind == TokenKind::StarStar {
                     precedence
+                } else {
+                    precedence + 1
                 };
 
                 let token = self.token;