optional parameters of "component"

[mvlcek]

That’s something up to the “user” (as you call them) though. You might never want to use a return inside eval()’d code, I surely never want that, but someone might. It’s just a case I had to include in the check.

"a case I had to include" is the wrong expression, as it's not necessary in my approach, where return values of the component are ignored (not supported) and the meaning of the return value of get_component is always: "true, if the component exists" ;-)

"a case I want to support" - with that I can agree ;-)

And I still think my approach is the cleaner one...