Linting Rules for Instances

Sigasi Visual HDL flags an error if the entity keyword is omitted in the instantiation of an entity (rule 198).

Note that when instantiating a component, the keyword entity and the library name are not used.

architecture RTL of bar is
    component foo
        port(
            clk : in std_logic;
            rst : in std_logic
        );
    end component foo;
begin
    foo_inst_bad : work.foo              -- instance of entity foo requires keyword "entity"
        port map(
            clk => clk,
            rst => rst
        );

    foo_inst_correct : entity work.foo   -- correct instance of entity foo
        port map(
            clk => clk,
            rst => rst
        );

    foo_inst_comp : foo                  -- instance of **component** foo
        port map(
            clk => clk,
            rst => rst
        );
end architecture RTL;