From: duerst@... Date: 2020-07-02T00:18:27+00:00 Subject: [ruby-core:99021] [Ruby master Feature#17004] Provide a way for methods to omit their return value Issue #17004 has been updated by duerst (Martin D�rst). Additional questions: - Are there any other languages that have such a feature? - Where there are performance implications, couldn't that be solved by an additional parameter to the methods in question? Or by a better design of interfaces (e.g. different methods for cases where an expensive return value isn't needed)? (@jeremyevans0) ---------------------------------------- Feature #17004: Provide a way for methods to omit their return value https://bugs.ruby-lang.org/issues/17004#change-86396 * Author: shyouhei (Shyouhei Urabe) * Status: Open * Priority: Normal ---------------------------------------- In ruby, it often is the case for a method's return value to not be used by its caller. Even when a method returns something meaningful, its caller is free to ignore it. Why not provide a way for a method to know if its return value is needed or not? That adds a room for methods to be optimized, by for instance skipping creation of complex return values. The following pull request implements `RubyVM.return_value_is_used?` method, which does that: https://github.com/ruby/ruby/pull/3271 -- https://bugs.ruby-lang.org/ Unsubscribe: