When calling BIS_fnc_getFromPairs from a scheduled environment and the provided key cannot be found, the following error is recorded:
Error in expression < _pairs;
if (isNil "_value") exitWith {_default};
_value}>
Error position: <_default};
_value}>
Error Undefined variable in expression: _default
File A3\functions_f\Arrays\fn_getFromPairs.sqf, line 63
This one throws an error:
[[],"LALA"] spawn BIS_fnc_getFromPairs;
This one does not:
[[],"LALA"] call BIS_fnc_getFromPairs;
The reason seems to be that you cannot reference a variable that has been set to nil in a scheduled environment. For example the following will throw an error:
Error in expression <[] spawn {_a = nil;_a};>
Error position: <_a};> Error Undefined variable in expression: _a
Doing the same thing using "call", works:
Changing line 63 from BIS_fnc_getFromPairs from
if (isNil "_value") exitWith {_default};
to
if (isNil "_value") exitWith {if (isNil "_default") then {nil} else {_default}};
works around the issue.
Is this going to get looked at? Its still "new".
FYI, I have seen other BIS functions incorporate the same workaround / fix (check return value for nil before returning it).
I think getting this to behave the same in both scheduled and un-scheduled environments would be preferred, ideally so that one can return a nil variable without having to check for it, but I'd take it the other way around if this means we get some consistency here.