verilator/test_regress/t/t_interface_and_struct_pattern.v

// DESCRIPTION: Verilator: SystemVerilog interface test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2012 Iztok Jeras
// SPDX-License-Identifier: CC0-1.0

package Package_pkg;
  typedef struct packed {
    int bar;
    int baz;
  } pkg_struct_t;
endpackage

interface intf #(
    parameter type data_type = bit
) (
    input wire clk,
    input wire rst
);
  data_type data;
  modport source(input clk, rst, output data);
endinterface

module sub (
    intf.source bar,
    input clk,
    input rst
);

  typedef struct packed {
    int foo;
    int baz;
  } struct_t;

  intf #(.data_type(struct_t)) the_intf (.*);

  Package_pkg::pkg_struct_t output_bar = Package_pkg::pkg_struct_t
'{bar: the_intf.data.foo, baz: the_intf.data.baz};
endmodule

module t (
    clk
);
  input clk;
  logic rst;

  intf bar (.*);
  sub the_sub (
      .bar(bar),
      .clk,
      .rst
  );

  // finish report
  always @(posedge clk) begin
    $write("*-* All Finished *-*\n");
    $finish;
  end
endmodule