Issue #21335 has been updated by tagomoris (Satoshi Tagomori). The `ns_id` seems good to be shown in backtrace (I'm unsure about this format is good or not): ``` foo.rb:7:in namespace(1) 'Foo.test' ``` ---------------------------------------- Feature #21335: Namespaces should be present in the backtrace https://bugs.ruby-lang.org/issues/21335#change-113238 * Author: tenderlovemaking (Aaron Patterson) * Status: Open ---------------------------------------- Namespaces can call in to other name spaces. I think it might be helpful if namespace information is in the backtrace. For example: ```ruby File.binwrite "foo.rb", <<-eorb class Foo def self.test(ns1, ns2, count) if count == 0 puts caller else if count % 2 == 0 ns1::Foo.test(ns1, ns2, count - 1) else ns2::Foo.test(ns1, ns2, count - 1) end end end end eorb ns1 = Namespace.new ns1.load "foo.rb" ns2 = Namespace.new ns2.load "foo.rb" ns1::Foo.test(ns1, ns2, 10) ``` The output is like this: ``` See doc/namespace.md for known issues, etc. /Users/aaron/git/ruby/exe/ruby: warning: Namespace is experimental, and the behavior may change in the future! See doc/namespace.md for known issues, etc. /Users/aaron/git/ruby/foo.rb:9:in 'test' /Users/aaron/git/ruby/foo.rb:7:in 'test' /Users/aaron/git/ruby/foo.rb:9:in 'test' /Users/aaron/git/ruby/foo.rb:7:in 'test' /Users/aaron/git/ruby/foo.rb:9:in 'test' /Users/aaron/git/ruby/foo.rb:7:in 'test' /Users/aaron/git/ruby/foo.rb:9:in 'test' /Users/aaron/git/ruby/foo.rb:7:in 'test' /Users/aaron/git/ruby/foo.rb:9:in 'test' /Users/aaron/git/ruby/foo.rb:7:in 'test' ./test.rb:23:in '<main>' ``` `Foo.test` alternates between namespaces when calling a method, but you can't tell from the backtrace. I think we should include namespaces in the backtrace. -- https://bugs.ruby-lang.org/