From: sawadatsuyoshi@... Date: 2021-03-26T06:57:49+00:00 Subject: [ruby-core:103034] [Ruby master Feature#17749] Const source location without name Issue #17749 has been updated by sawa (Tsuyoshi Sawada). I also think that a method name other than `const_source_location` should be used for this feature because this feature has nothing to do with constants. Module are not necessarily constants, and constants are not necessarily modules. ---------------------------------------- Feature #17749: Const source location without name https://bugs.ruby-lang.org/issues/17749#change-91097 * Author: tenderlovemaking (Aaron Patterson) * Status: Open * Priority: Normal ---------------------------------------- Hi, I would like to be able to ask a class or module what its source location is without knowing the name. For example, I want to do this: ```ruby module A class B end end p A::B.const_source_location ``` In other works `A::B.const_source_location` would be equivalent to `A.const_source_location(:B)`. The reason I want to do this is because sometimes it is very difficult to get the name of a constant, and sometimes I don't have access to the constant that "encloses" the class or module. One example: ```ruby ObjectSpace.each_object(Class) do |k| p k.const_source_location end ``` In this case I have class objects, but I can't tell what constant `k` was defined *inside* of. Also I can't trust the "name" method on `k` because sometimes it's not the default method (of course I could work around that, but it's not fun). I've attached a patch that implements the feature, and there is a PR [here](https://github.com/ruby/ruby/pull/4324) Side note: I think I would like "source_location" better than `const_source_location`, but I wanted to just file a feature request so we could talk about the feature in general. ---Files-------------------------------- 0001-Add-constant-location-information-to-classes.patch (5.34 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: