Parse pointer types

backend/riscv.cpp

@@ -289,6 +289,10 @@ namespace elna::riscv
         statement->body().accept(this);
     }
 
+    void visitor::visit(source::type_expression *type)
+    {
+    }
+
     void visitor::visit(source::variable_expression *variable)
     {
         const auto free_register = this->register_in_use ? x_register::a0 : x_register::t0;