
Issue #21160 has been reported by JustJosh (Joshua Stowers). ---------------------------------------- Feature #21160: Local return from proc https://bugs.ruby-lang.org/issues/21160 * Author: JustJosh (Joshua Stowers) * Status: Open ---------------------------------------- When writing DSL-style helper methods, I often store block arguments as procs to use as callbacks. Using `return` in a proc will return from the context it was created in, which is unsuitable in the following example. Since procs cannot be converted to lambdas, I end up using `next` to return a value from them early. Example: ``` ruby fulfills_promise :generate_large_image do |image_data| next false if image_data.nil? puts 'Saving image..' # etc. end ``` This works but confuses most readers. I propose introducing an alias for it that is more appropriate for this use case. Perhaps `pass` or `continue`? It's worth noting that `return` would work with `fulfills_promise :foo, -> (bar) do`, though it detracts a bit from a DSL's expressiveness. -- https://bugs.ruby-lang.org/