Question

I’d like to create a const object inside my SystemVerilog class. Does SystemVerilog support const objects (and how?), or does it only support const primitive types.

I’d like to do something like:

const my_object MY_CONST;

const begin
    MY_CONST = new();
    MY_CONST.param1 = "value1";
    MY_CONST.param2 = "value2";
end

Answer 1

You can create constant class instances.

An instance of a class (an object handle) can also be declared with
the const keyword.

const class_name object = new(5,3);

In other words,
the object acts like a variable that cannot be written. The arguments
to the new method shall be constant expressions (see 11.2.1). The
members of the object can be written (except for those members that
are declared const).