bpo-31338 (#3374)

* Add Py_UNREACHABLE() as an alias to abort().
* Use Py_UNREACHABLE() instead of assert(0)
* Convert more unreachable code to use Py_UNREACHABLE()
* Document Py_UNREACHABLE() and a few other macros.

1 files changed, 1 insertions, 2 deletions

diff --git a/Python/compile.c b/Python/compile.c
index e547c2fd59..df5070aad2 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -1350,8 +1350,7 @@ get_const_value(expr_ty e)
     case NameConstant_kind:
         return e->v.NameConstant.value;
     default:
-        assert(!is_const(e));
-        return NULL;
+        Py_UNREACHABLE();
     }
 }