Linting Rules for Loops

Sigasi Visual HDL can check for a number of loop-related problems:

• Infinite loop missing a wait (rule 20). Note that infinite while and for loops will not be checked by this rule.

process
begin
   loop
      -- statements go here
   end loop;
end process;

process
begin
   loop
      -- statements go here
      wait for 1 ns;
   end loop;
end process;

• Empty loop statement (rule 190): the loop body doesn’t contain any statements

for loopvar in  loop
   -- nothing going on here...
end loop;

• for loops that will not execute due to a loop variable with a null range will be flagged with the Null range linting rule.

Rule configuration

These rules can be disabled for your project, or their severity and parameters can be modified in the project linting settings. Alternatively, they can be manually configured with the following template:

20/severity/${path}={error|warning|info|ignore}
190/severity/${path}={error|warning|info|ignore}