Returns the size of a vector type, vector variable, list or a generate foreach statement. int sizeof(any object);

entity Test
{
	typedef logic[4] DataType;
	
	signal logic[8] test1;
	signal DataType test2;
	
	process dummy()
	{
		auto x = test1 cat test2;
		int a = sizeof(DataType);
		int b = sizeof(test1);
		int c = sizeof(test2);
		int d = sizeof(x);
	}
}

Generated VHDL code:

dummy : process  is
	variable x : std_logic_vector(11 downto 0);
	variable a : integer;
	variable b : integer;
	variable c : integer;
	variable d : integer;
begin
	x := (test1 & test2);
	a := 4;
	b := 8;
	c := 4;
	d := 12;
end process dummy;

entity Test
{
	const any lst1 = (1, 2, 3);
	const any lst2 = (lst1, 4, 5);
	
	process dummy()
	{
		int a = sizeof(lst1);
		int b = sizeof(lst2);
	}
}

Generated VHDL code:

dummy : process  is
	variable a : integer;
	variable b : integer;
begin
	a := 3;
	b := 5;
end process dummy;

entity Test
{
	const any lst1 = (1, 2, 3);
	
	generate something foreach(any i in lst1)
	{
		signal logic[8] sig = i;
	}
	
	process dummy()
	{
		int a = sizeof(something);
	}
}

Generated VHDL code:

entity Test is
end entity Test;

architecture Behavioral of Test is
	signal something_0_sig : std_logic_vector(7 downto 0) := X"01";
	signal something_1_sig : std_logic_vector(7 downto 0) := X"02";
	signal something_2_sig : std_logic_vector(7 downto 0) := X"03";
	
	begin
		a := 3;
		
end architecture Behavioral;