** Fatal: sorry, attribute LAST_ACTIVE not implemented

[avelure]

I ran into this issue when analyzing some vendor libraries
Here is an MWE

library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;

entity test is
end entity test;
architecture rtl of test is
  signal sig : std_logic := '0';
begin

  process
  begin
    sig <= '0' after 1 ps;
    wait for 3 ps;
    assert sig'last_active = 3 ps - 1 ps report "Signal should have been active" severity error;
    wait;
  end process;
end architecture rtl;

While looking around the source I also noticed the attributes 'driving_value and 'driving are missing as well, though I don't have a need for their functionality at the moment. I could add separate issues and MWEs for them if preferred,

[nickg]

Thanks for reporting this. I've added 'last_active as well as 'driving and 'driving_value.

[avelure]

Thanks for the quick work!
I'll continue to try to get my project runnable with nvc.