Common Lisp has had with-open-file for a long time now. The great thing about with-open-file is that it ensures the file gets closed regardless of what the code

Common Lisp has had with-open-file for a long time now. The great thing about with-open-file is that it ensures the file gets closed regardless of what the code in the scope does, using unwind-protect. This implies you can use the same method to create your own with-held-resource macros that work the same way.