UVM/uvm-1.2/examples/simple/factory/test.sv

//----------------------------------------------------------------------
//   Copyright 2007-2010 Mentor Graphics Corporation
//   Copyright 2007-2010 Cadence Design Systems, Inc.
//   Copyright 2010-2011 Synopsys, Inc.
//   All Rights Reserved Worldwide
//
//   Licensed under the Apache License, Version 2.0 (the
//   "License"); you may not use this file except in
//   compliance with the License.  You may obtain a copy of
//   the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
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//   Unless required by applicable law or agreed to in
//   writing, software distributed under the License is
//   distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
//   CONDITIONS OF ANY KIND, either express or implied.  See
//   the License for the specific language governing
//   permissions and limitations under the License.
//----------------------------------------------------------------------


/*
About: factory

This example will illustrate the usage of uvm_factory methods.



To get more details about the factory related methods, check the file:
	- uvm/src/base/uvm_factory.svh


*/



module top;
  import uvm_pkg::*;
  import packet_pkg::*;
  import gen_pkg::*;
  import env_pkg::*;

  `include "uvm_macros.svh"
  env e;  //you need to use something from the package to have the
          //factory registration occur.

  class mygen extends gen;
    function new(string name, uvm_component parent);
      super.new(name, parent);
    endfunction

    function packet get_packet();
      `uvm_info("PKTGEN", $sformatf("Getting a packet from %s (%s)", get_full_name(), get_type_name()),UVM_MEDIUM)
      return super.get_packet();
    endfunction

    //Use the macro in a class to implement factory registration along with other
    //utilities (create, get_type_name). To just do factory registration, use the
    //macro `uvm_object_registry(mygen,"mygen")
    `uvm_component_utils(mygen)

  endclass

  class mypacket extends packet;
    constraint ct10 { addr >= 0 && addr <= 10; }

    //Use the macro in a class to implement factory registration along with other
    //utilities (create, get_type_name).
    `uvm_object_utils(mypacket)

  function new(string name="mypacket");
     super.new(name);
  endfunction

  endclass

  initial begin automatic uvm_coreservice_t cs_ = uvm_coreservice_t::get();

    uvm_factory factory;
    factory = cs_.get_factory();
    gen::type_id::set_inst_override(mygen::get_type(), "uvm_test_top.gen1");
    packet::type_id::set_type_override(mypacket::get_type());

    factory.print(1);

    //If a string is used to run_test, run_test will used the string based factory
    //create method to create an object of the desired type.
    run_test("env");
  end

endmodule