The members of the class are encapsulated. The default member type is public, and the restricted member types are protected and local:
class clock
local bit is_summer = 0;
local int nclock = 6;
function int get_clock();
if(!is_summer) return this.nclock;
else return this.nclock+1;
endfunction
function bit set_summer(bit s);
this.is_summer = s;
endfunction
endclass
clock ck;
initial begin
ck = new();
$display("now tome is %0d", ck.get_clock());
ck.set_summer(1);
$display("noe time is %0d", ck.nclock);
end
[6, error]
Analysis procedures:
clock ck first declares a handle ck, then creates an object new ()
The ck.get_clock function calls the object's method, but ck belongs to an external handle and cannot access the local variable nclock. But the local variable can be accessed through the function get_clock.
Some characteristics of the members of the class are:
