From c0be20ca52c183bdf84ec1bafe5ede1fc95e38e9 Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Tue, 9 Aug 2011 16:15:04 -0500
Subject: add a AST validator (closes #12575)

---
 Python/bltinmodule.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Python/bltinmodule.c')

diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 152210b30b..94b2798fee 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -604,6 +604,10 @@ builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
                 PyArena_Free(arena);
                 goto error;
             }
+            if (!PyAST_Validate(mod)) {
+                PyArena_Free(arena);
+                goto error;
+            }
             result = (PyObject*)PyAST_CompileEx(mod, filename,
                                                 &cf, optimize, arena);
             PyArena_Free(arena);
-- 
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