From: "mame (Yusuke Endoh) via ruby-core" Date: 2025-03-13T11:06:11+00:00 Subject: [ruby-core:121325] [Ruby master Misc#20968] `Array#fetch_values` unexpected method name in stack trace Issue #20968 has been updated by mame (Yusuke Endoh). I reconfirmed this with @matz during the dev meeting. He reiterated that `:111:in '...' from :111:in '...' from :111:in '...' from :111:in 'Array#fetch_values' from foo.rb:1:in 'Foo#foo' ... ``` When creating a backtrace object (such as when creating an exception object, calling `Kernel#caller_locations`, etc.), this should be condensed to: ``` ... from bar.rb:1:in 'Bar#bar' from foo.rb:1:in 'Array#fetch_values' from foo.rb:1:in 'Foo#foo' ... ``` (`Array#fetch_values` is just an example; other built-in methods should be handled in the same way.) ---------------------------------------- Misc #20968: `Array#fetch_values` unexpected method name in stack trace https://bugs.ruby-lang.org/issues/20968#change-112292 * Author: koic (Koichi ITO) * Status: Open ---------------------------------------- It seems that the current Ruby implementation is displaying unexpected method name in stack trace. ## Expected Similar to `Hash#fetch_values`, the method name `Array#fetch_values` is expected to be displayed in the stack trace. ```console $ ruby -e '{k: 42}.fetch_values(:unknown)' -e:1:in 'Hash#fetch_values': key not found: :unknown (KeyError) from -e:1:in '
' $ ruby -e '[1].fetch_values(42)' -e:1:in 'Array#fetch_values': index 42 outside of array bounds: -1...1 (IndexError) from -e:1:in '
' ``` ## Actual The stack trace displays the `Array#fetch` method, which user is not aware of, along with the `` stack trace. ```console $ ruby -e '[1].fetch_values(42)' :211:in 'Array#fetch': index 42 outside of array bounds: -1...1 (IndexError) from :211:in 'block in Array#fetch_values' from :211:in 'Array#map!' from :211:in 'Array#fetch_values' from -e:1:in '
' ``` It likely requires an approach such as implementing it in C, as suggested in https://github.com/ruby/ruby/pull/11555. -- https://bugs.ruby-lang.org/ ______________________________________________ ruby-core mailing list -- ruby-core@ml.ruby-lang.org To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org ruby-core info -- https://ml.ruby-lang.org/mailman3/lists/ruby-core.ml.ruby-lang.org/