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