w_uclass          694 marshal.c      	    w_uclass(obj, rb_cString, arg);
w_uclass          700 marshal.c                  w_uclass(obj, rb_cRegexp, arg);
w_uclass          710 marshal.c      	    w_uclass(obj, rb_cArray, arg);
w_uclass          726 marshal.c      	    w_uclass(obj, rb_cHash, arg);