From 54246e12ad48bc1dbd416b0b415a4a48b337c2f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
Date: Thu, 27 Jan 2022 10:04:40 +0100
Subject: [PATCH] Throw Exception when shape has invalid type

Although the switch statement handles all (current) allowed values, from
a C/C++ view point the enum may have any value of its underlying type.
In this case the function has no return statement and runs into
undefined behavior.

Fixes build failures when built with "-Werror=return-type".
---
 libsrc/occ/python_occ_shapes.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libsrc/occ/python_occ_shapes.cpp b/libsrc/occ/python_occ_shapes.cpp
index 91e94c50..cbb35178 100644
--- a/libsrc/occ/python_occ_shapes.cpp
+++ b/libsrc/occ/python_occ_shapes.cpp
@@ -194,6 +194,7 @@ py::object CastShape(const TopoDS_Shape & s)
     case TopAbs_SHAPE:
       return py::cast(s);
     }
+    throw Exception("Invalid Shape type");
 };