ruby.git/test/-ext-/array/test_to_ary_concat.rb, branch v4.0.3 The Ruby Programming Language Guard array when appending 2021-09-01T17:58:20+00:00 Aaron Patterson tenderlove@ruby-lang.org 2021-08-31T23:58:29+00:00 8db269edb3550a85dfab9b193ea115ca36912ced This prevents early collection of the array. The GC doesn't see the array on the stack when Ruby is compiled with optimizations enabled Thanks @jhaberman for the test case [ruby-core:105099] [Bug #18140] 
This prevents early collection of the array.  The GC doesn't see the
array on the stack when Ruby is compiled with optimizations enabled

Thanks @jhaberman for the test case

[ruby-core:105099] [Bug #18140]