Issue #21974 has been updated by afurm (Andrii Furmanets). I have created a fix for this https://github.com/ruby/ruby/pull/16642 ---------------------------------------- Bug #21974: Cannot inspect RubyVM::AST for CDECL https://bugs.ruby-lang.org/issues/21974#change-116913 * Author: kddnewton (Kevin Newton) * Status: Open * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN, 4.0: UNKNOWN ---------------------------------------- ``` ./ruby -e 'pp RubyVM::AbstractSyntaxTree.parse("::Foo = 1")' ``` and ``` ./ruby -e 'p RubyVM::AbstractSyntaxTree.parse("::Foo = 1").children[2].children' ``` both crash -- https://bugs.ruby-lang.org/