[ruby-core:122561] [Ruby Bug#21447] Fix handling of PM_CONSTANT_PATH_NODE node in keyword arguments with ARGS_SPLAT
From:
"jeremyevans0 (Jeremy Evans) via ruby-core" <ruby-core@...>
Date:
2025-06-20 03:22:57 UTC
List:
ruby-core #122561
Issue #21447 has been reported by jeremyevans0 (Jeremy Evans). ---------------------------------------- Bug #21447: Fix handling of PM_CONSTANT_PATH_NODE node in keyword arguments with ARGS_SPLAT https://bugs.ruby-lang.org/issues/21447 * Author: jeremyevans0 (Jeremy Evans) * Status: Open * Assignee: jeremyevans0 (Jeremy Evans) * Backport: 3.2: DONTNEED, 3.3: DONTNEED, 3.4: REQUIRED ---------------------------------------- I added an optimization to reduce implicit allocations when using parse.y in commit:3de20efc308cccc38bf9dacfffca6c626d039a06. An implementation was added for prism in commit:14bb376b79ca9140bfd36dbbad06be045f31f92e. Unfortunately, when I added tests for the optimization, I only tested the optimizable case for `NODE_COLON2` (`Foo::Bar`). I neglected to add a test for the unoptimizable case (`foo()::Bar`). The prism implementation of the optimization incorrectly optimized the unoptimizable case (for `PM_CONSTANT_PATH_NODE`), but that's because the tests did not fail when it was incorrectly optimized. This can cause an evaluation order issue in the following code if `foo` modifies `array`: ```ruby method(*array, kw: foo(array)::Bar) ``` I've submitted a PR that adds tests for the unoptimizable case, and fixes the prism implementation of the optimization: https://github.com/ruby/ruby/pull/13664 -- 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/