// In Verilog, we don't have direct support for generics or type parameters.
// However, we can use parameters to achieve some level of flexibility.

// This module implements a parameterized function similar to SlicesIndex
module SlicesIndex #(
    parameter WIDTH = 8,
    parameter SIZE = 4
) (
    input [WIDTH-1:0] s [SIZE-1:0],
    input [WIDTH-1:0] v,
    output reg [$clog2(SIZE)-1:0] index
);
    integer i;
    always @(*) begin
        index = -1;
        for (i = 0; i < SIZE; i = i + 1) begin
            if (s[i] == v) begin
                index = i;
                break;
            end
        end
    end
endmodule

// In Verilog, we can't directly implement a linked list as in the Go example.
// Instead, we'll create a simple array-based list.
module List #(
    parameter WIDTH = 8,
    parameter MAX_SIZE = 16
) (
    input clk,
    input rst,
    input [WIDTH-1:0] push_val,
    input push_en,
    output reg [WIDTH-1:0] elements [MAX_SIZE-1:0],
    output reg [$clog2(MAX_SIZE):0] size
);
    always @(posedge clk or posedge rst) begin
        if (rst) begin
            size <= 0;
        end else if (push_en && size < MAX_SIZE) begin
            elements[size] <= push_val;
            size <= size + 1;
        end
    end
endmodule

// Testbench to demonstrate the usage
module testbench;
    reg clk, rst;
    reg [7:0] s [3:0];
    reg [7:0] v;
    wire [1:0] index;

    SlicesIndex #(8, 4) si (
        .s(s),
        .v(v),
        .index(index)
    );

    reg [7:0] push_val;
    reg push_en;
    wire [7:0] list_elements [15:0];
    wire [4:0] list_size;

    List #(8, 16) lst (
        .clk(clk),
        .rst(rst),
        .push_val(push_val),
        .push_en(push_en),
        .elements(list_elements),
        .size(list_size)
    );

    initial begin
        clk = 0;
        rst = 1;
        #10 rst = 0;

        // Test SlicesIndex
        s[0] = "foo";
        s[1] = "bar";
        s[2] = "zoo";
        s[3] = "baz";
        v = "zoo";
        #10;
        $display("index of zoo: %d", index);

        // Test List
        push_en = 1;
        push_val = 10;
        #10;
        push_val = 13;
        #10;
        push_val = 23;
        #10;
        push_en = 0;
        #10;
        $display("list size: %d", list_size);
        $display("list elements: %d %d %d", list_elements[0], list_elements[1], list_elements[2]);

        $finish;
    end

    always #5 clk = ~clk;
endmodule