From 1dcd932f1f2c203f0010456d1e8c2e3e4e0d008d Mon Sep 17 00:00:00 2001
From: raskad <32105367+raskad@users.noreply.github.com>
Date: Sat, 7 Jan 2023 05:08:08 +0000
Subject: [PATCH] Fix postfix operator line terminator parsing (#2520)

Postfix increment / decrement operators require that there is no line terminator between the LHS expression and  the operator. This was previously ignored.
---
 boa_parser/src/parser/expression/update.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/boa_parser/src/parser/expression/update.rs b/boa_parser/src/parser/expression/update.rs
index 9f196fac3f1..d36f8aff2d5 100644
--- a/boa_parser/src/parser/expression/update.rs
+++ b/boa_parser/src/parser/expression/update.rs
@@ -123,6 +123,10 @@ where
         let lhs = LeftHandSideExpression::new(self.name, self.allow_yield, self.allow_await)
             .parse(cursor, interner)?;
 
+        if cursor.peek_is_line_terminator(0, interner)?.unwrap_or(true) {
+            return Ok(lhs);
+        }
+
         if let Some(tok) = cursor.peek(0, interner)? {
             let token_start = tok.span().start();
             match tok.kind() {