Brad Bowman wrote:
Assuming this is allowed, what will the .() calls below return?
Does the result depend on the calling context?
...
one(any(@subs),sub { ... }).();
Starting to argument from the statement that junctions are values
the above plays in the league of 3.() which might not have observeable
side effects other then busying the compiler for a while. Actually
it could be optimised away :)
I'd guess the rule is "call 'em all and return a similarly
structured junction". How far off the mark am I?
Unless you ask a question nothing is called. So at least you need
something like if one(...) {...}. Then the call order is undefined
and might stop after the first success. Knowing about the constness
of the return values of the subs referred to from the junction, and
knowing that none of their values is false, these cases might be
optimized towards the front when this stops the influx of further
interrogation by the if. The reverse might apply for interrogation
by unless---but that's up to the oracle :)
--
TSa (Thomas Sandlaß)
