diff --git a/libs/interpreter/source/eval.cpp b/libs/interpreter/source/eval.cpp
index f8fe084..a515b42 100644
--- a/libs/interpreter/source/eval.cpp
+++ b/libs/interpreter/source/eval.cpp
@@ -472,6 +472,18 @@ namespace pslang::interpreter
 			return std::visit([&](auto const & type){ return cast_impl(value, type); }, type);
 		}
 
+		template <typename T>
+		value cast_impl(primitive_value_base<T> const &, type::array_type const &)
+		{
+			throw std::runtime_error("Cannot cast anything to array type");
+		}
+
+		template <typename T>
+		value cast_impl(primitive_value_base<T> const &, type::function_type const &)
+		{
+			throw std::runtime_error("Cannot cast anything to function type");
+		}
+
 		template <typename T>
 		value cast_impl(primitive_value_base<T> const & value, type::type const & type)
 		{