Fixes crash if hull's children are empty objects. Fixes #345

2 files changed, 17 insertions, 0 deletions

diff --git a/testdata/scad/features/hull2-tests.scad b/testdata/scad/features/hull2-tests.scad
index e656e6a..82b56e4 100644
--- a/testdata/scad/features/hull2-tests.scad
+++ b/testdata/scad/features/hull2-tests.scad
@@ -31,7 +31,15 @@ module hull2dForLoop() {
   }
 }
 
+module hull2null() {
+  hull() {
+    square(0);
+    circle(0);
+  }
+}
+
 convex2dHole();
 translate([40,0,0]) convex2dSimple();
 translate([0,-20,0]) concave2dSimple();
 translate([30,-25,0]) hull2dForLoop();
+hull2null();
\ No newline at end of file
diff --git a/testdata/scad/features/hull3-tests.scad b/testdata/scad/features/hull3-tests.scad
index e3fc8e7..0f48b8f 100644
--- a/testdata/scad/features/hull3-tests.scad
+++ b/testdata/scad/features/hull3-tests.scad
@@ -26,3 +26,12 @@ translate([-5,-5,-5]) {
     }
   }
 }
+
+module hull3null() {
+  hull() {
+    cube(0);
+    sphere(0);
+  }
+}
+hull3null();
+