`if` function shouldn't evaluate its not returned arg

The sample:

@some: foo;

div {
    margin: if((2 > 1), 0, 3px);
    color:  if((iscolor(@some)), darken(@some, 10%), black);
}

produce with version 3.9.0 the follow error:

RuntimeError: error evaluating function `darken`: color.toHSL is not a function in sample.less on line 5, column 34:
4     margin: if((2 > 1), 0, 3px);
5     color:  if((iscolor(@some)), darken(@some, 10%), black);
6 }

it look like that the THEN part is evaluate if the ELSE part should be used.

[seven-phases-max]

Do you see a problem with it?

No, that’s what I would expect (I was just wondering how/if it also evaluates args before the function itself).

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In summary (as far as I understand it) I’m afraid it was just initially not-working example (my bad). Which in turn means the if implementation should be improved (the way it is now, the false arg is always evaluated - and this is not what we’d expect (ideally)).

[matthew-dean]

FYI - I’ve done some initial work in 4.x to support this feature.