verilator/test_regress/t/t_interface_virtual_unused2.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain
// SPDX-FileCopyrightText: 2025 Antmicro
// SPDX-License-Identifier: CC0-1.0

interface QBus(input logic k);
   logic data;
endinterface

class cls;
    virtual QBus vif1;

    function void foo(virtual QBus vif2);
        vif2.data = 1;
    endfunction
endclass

module t;

   cls bar;

   initial begin
      $write("*-* All Finished *-*\n");
      $finish;
   end
endmodule