RGENGC_WB_PROTECTED_STRUCT  764 include/ruby/ruby.h #ifndef RGENGC_WB_PROTECTED_STRUCT
RGENGC_WB_PROTECTED_STRUCT  574 struct.c           NEWOBJ_OF(st, struct RStruct, klass, T_STRUCT | (RGENGC_WB_PROTECTED_STRUCT ? FL_WB_PROTECTED : 0));