I'm not sure why, but all the source values are listed here: https://github.com/ruby/ruby/blob/1cc700907d3ad3368272488a6f8960f2336bf26e/iseq.c#L3247 https://git

I'm not sure why, but all the source values are listed here: https://github.com/ruby/ruby/blob/1cc700907d3ad3368272488a6f8960f2336bf26e/iseq.c#L3247 https://github.com/ruby/ruby/blob/1cc700907d3ad3368272488a6f... Maybe someone knowledgeable in the underpinnings of Ruby will explain why "class variable" was not hyphenated.