From f3dedba3203bd3aa9085aeca72c6113596786e5f Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Fri, 19 Sep 2025 13:23:29 +0200
Subject: [PATCH] Map opt<bool> in taxonony to none,false,true

---
 src/ifcwrap/IfcGeomWrapper.i | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/ifcwrap/IfcGeomWrapper.i b/src/ifcwrap/IfcGeomWrapper.i
index 9023cdf828..bc64a69bb0 100644
--- a/src/ifcwrap/IfcGeomWrapper.i
+++ b/src/ifcwrap/IfcGeomWrapper.i
@@ -112,6 +112,14 @@ std::pair<char const*, size_t> vector_to_buffer(const T& t) {
 	}
 }
 
+%typemap(out) boost::optional<bool> {
+    if ($1) {
+        $result = PyBool_FromLong(*$1 ? 1 : 0);
+    } else {
+        Py_INCREF(Py_None);
+        $result = Py_None;
+    }
+}
 
 %typemap(in) ifcopenshell::geometry::taxonomy::item::ptr {
 	// @this is really annoying, but apparently inheritance