Covergroup identification

[GiamboVuolo]

Hello,
I'm having trouble when getting out coverage groups informations in the ast. The fact is that when I declare and instantiate the coverage group in a module, it is shown in the ast as "kind: CovergroupType" with its coverpoints and bins, while if I instantiate it inside of a class, it sees it as "kind: ClassProperty". As consequence, the information about its bins and coverpoints is lost.
I provide a dummy test with the two configurations and the file .json I obtain.
Let me know if you can help me, thank you!

`module test_top;

`include "packet.sv"

packet pkt;
bit ok;
bit clk = 0;

always #10 clk = ~clk;


covergroup cg_good @(posedge clk);
    pluto : coverpoint pkt.length   {
        bins a = {[0:25]};
        bins b = {27};
    }
    topolino : coverpoint pkt.address   {
        bins a = {1};
        bins b = {3};
    }
endgroup

initial begin
    cg_good cg_g= new();
    for (int i = 0; i < 2; i++) begin
        @(posedge clk);
        pkt = new($sformatf("packet_%0d", i + 1));
        ok = pkt.randomize();
        pkt.sample();
        pkt.print();
    end
    $finish();
end

endmodule
`

`
class packet;

string name;
rand bit[5:0]       length;
rand bit[1:0]       address;

covergroup cg_bad with function sample();
    pippo : coverpoint length   {
        bins a = {6'b000000};
        bins b = {2,16};
    }
    lello : coverpoint address  {
        bins a = {2'b00};
        bins b = {2};
    }
endgroup

function new(string name = "CIAO");
    this.name = name;
    cg_bad = new();
endfunction

function void sample();
    cg_bad.sample();
endfunction

function void print();
    $display("%s, length %0d, address %0d", name, length, address);
endfunction

endclass`

[MikePopoloski]

According to the rules of the language, covergroups declared inside classes are anonymous, and their name is instead used to create a class property of that covergroup type, which is what you're seeing. You should be able to find the anonymous covergroup type itself in the class members list though? If not that's a bug that can be fixed, just open an issue and I'll look into it.

[GiamboVuolo]

There's only one covergroup type and it's the one of cg_good instantiated in module. I attach a zip with the .json file with the ast so you can see what's going on
prova.zip