From e911f2dc5e88b37d83569ba97fd3f52d26dddb78 Mon Sep 17 00:00:00 2001
From: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
Date: Sat, 31 Oct 2020 15:06:16 +0300
Subject: [PATCH] bpo-42218: Check for the error indicator when expecting a new
 token

---
 Lib/test/test_syntax.py | 3 +++
 Parser/pegen.c          | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
index e89d9401f2c397f..9abb545c0ad7900 100644
--- a/Lib/test/test_syntax.py
+++ b/Lib/test/test_syntax.py
@@ -972,6 +972,9 @@ def func2():
 """
         self._check_error(code, "invalid syntax")
 
+    def test_unexpected_line_continuation(self):
+        self._check_error('A.\u018a\\ ', "unexpected character after line continuation character")
+
 def test_main():
     support.run_unittest(SyntaxTestCase)
     from test import test_syntax
diff --git a/Parser/pegen.c b/Parser/pegen.c
index 188fd282b760436..be6441e6f70d4d1 100644
--- a/Parser/pegen.c
+++ b/Parser/pegen.c
@@ -835,7 +835,7 @@ expr_ty
 _PyPegen_name_token(Parser *p)
 {
     Token *t = _PyPegen_expect_token(p, NAME);
-    if (t == NULL) {
+    if (t == NULL || p->error_indicator) {
         return NULL;
     }
     char* s = PyBytes_AsString(t->bytes);