rb_mod_constants  290 eval.c         	return rb_mod_constants(argc, argv, rb_cModule);
rb_mod_constants  752 include/ruby/intern.h VALUE rb_mod_constants(int, VALUE *, VALUE);
rb_mod_constants 2607 object.c           rb_define_method(rb_cModule, "constants", rb_mod_constants, -1); /* in variable.c */