From 43aeefa41915e4d3b0e68bbd4268c1c378a72dce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Batuhan=20Ta=C5=9Fkaya?= <batuhanosmantaskaya@gmail.com>
Date: Tue, 14 Apr 2020 23:21:22 +0300
Subject: bpo-39522: Use _PyUnicodeWriter_WriteStr instead of PyUnicode_AS_DATA
 (GH-19523)

---
 Python/ast_unparse.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Python/ast_unparse.c b/Python/ast_unparse.c
index c321acf..443e712 100644
--- a/Python/ast_unparse.c
+++ b/Python/ast_unparse.c
@@ -875,8 +875,10 @@ append_ast_expr(_PyUnicodeWriter *writer, expr_ty e, int level)
         if (e->v.Constant.value == Py_Ellipsis) {
             APPEND_STR_FINISH("...");
         }
-        APPEND_STR_IF(e->v.Constant.kind != NULL,
-                      PyUnicode_AS_DATA(e->v.Constant.kind));
+        if (e->v.Constant.kind != NULL
+            && -1 == _PyUnicodeWriter_WriteStr(writer, e->v.Constant.kind)) {
+            return -1;
+        }
         return append_ast_constant(writer, e->v.Constant.value);
     case JoinedStr_kind:
         return append_joinedstr(writer, e, false);
-- 
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