UVM：filed_automation

参考UVM实战3.3 filed_automation机制

`define uvm_file_int(ARG, FLAG)

class trans;
		rand bit [47 : 0] dmac;
		rand bit [31 : 0] dq [];
		`uvm_object_utils_begin(trans)
			`uvm_filed_int(dmac, UVM_ALL_ON)
			`uvm_filed_array_int(dq, UVM_ALL_ON)
		`uvm_object_utils_end
endclass

域自动化后就可以直接调用copy(),compare(),print();