Reflection and introspection updates for task #85

unittests/function_introspection.chai

@@ -48,3 +48,29 @@ assert_equal(true, types[0].bare_equal(bool_type));
 assert_equal(true, types[1].bare_equal(Object_type));
 assert_equal(true, types[2].bare_equal(Object_type));
 assert_equal(2, `<`.get_contained_functions().size());
+
+
+// guard existence tests
+
+def with_guard(x) : x > 3 {}
+def without_guard(x) {}
+
+def group_guard(x) {}
+def group_guard(x) : x > 3 {}
+
+assert_equal(true, with_guard.has_guard());
+assert_equal(false, without_guard.has_guard());
+
+assert_equal(2, group_guard.get_contained_functions().size());
+var group = group_guard.get_contained_functions();
+
+assert_equal(true, group[0].has_guard())
+assert_equal(false, group[1].has_guard())
+
+assert_throws("Function does not have a guard", fun() { group[0].get_guard(); } );
+assert_throws("Function does not have a guard", fun() { without_guard.get_guard(); } );
+
+var guard = with_guard.get_guard();
+
+assert_equal(false, guard.has_guard());
+assert_throws("Function does not have a guard", fun() { guard.get_guard(); } );