Issue #19458 has been updated by janosch-x (Janosch Müller). joelhawksley (Joel Hawksley) wrote in #note-8:
My thinking (the proposal I considered submitting but didn't fully form yet) was rather that HEREdocs might create some subclass, like `TaggedString` [...]
Given the feedback here so far, this is the approach I think we should take.
That would be a substantial breaking change for a minor feature. It would break code like `foo.class == String` or `foo.instance_of?(String)`. ---------------------------------------- Feature #19458: Expose HEREDOC identifier https://bugs.ruby-lang.org/issues/19458#change-102818 * Author: joelhawksley (Joel Hawksley) * Status: Open * Priority: Normal ---------------------------------------- I’d like to have access to the HEREDOC identifier. In the ViewComponent framework I help maintain, we added a method to declare a template as such: ```ruby class Component erb_template <<~ERB <h1>Hello, <%= @name %>!</h1> ERB end ``` I'd prefer to be able to write: ```ruby class Component template <<~ERB <h1>Hello, <%= @name %>!</h1> ERB end ``` And be able to see that the argument passed to `.template` was from a HEREDOC with an `ERB` identifier, which would allow me to use the correct template handler to compile the template. I could see this being implemented: 1) As a new property of String, such as `identifier` or `heredoc_identifier`. 2) By having HEREDOCs return a subclass of String that includes an `identifier` property. I'd be happy to work on implementing this change. ---Files-------------------------------- clipboard-202302251947-5owjc.png (16.4 KB) -- https://bugs.ruby-lang.org/