I want to have a SystemVerilog class which contains an array of another class, like below:
class AggregateClass;
integer x;
OtherClass[x] otherClassArray;
extern function new(int x, logic in);
endclass: AggregateClass
class OtherClass;
// ...
extern function new(logic in);
// ...
endclass: OtherClass
- How do I define an array of classes in SystemVerilog?
- How can I have the number of class objects in said class array be set by the constructor?
CodePudding user response:
When declaring a static array, you need a constant to declare its size; so, a variable cannot be used there. However, in SystemVerilog you can use dynamic arrays as follows:
class B;
int val;
function new(int v);
val = v;
endfunction
function void print;
$display("
", val);
endfunction
endclass
class A;
int x;
B b[int]; // << declaration of a dynamic array
function new(int n);
x = n;
for (int i = 0; i < n; i )
b[i] = new(i); // <<< construction of dynamic array elements of class B.
endfunction
function void print;
$display("size:
", b.size);
for (int i = 0; i < x; i )
b[i].print;
endfunction
endclass
module top;
initial begin
A a = new(4);
a.print();
end
endmodule