groovy - Getting "calling" list size in list closure -

i need "calling" list size in groovy list closure, e.g.:

def foo = [1,2,3,4,5] def bar = foo.findall {    somecondition(it) }.collect {    processelement(it, <self>.size()) } 

where <self> list resulting filtering foo findall.

of course, 1 can save intermediate result , size, possible without it?

the best can think of is:

def bar = foo.findall { somecondition(it) }              .with { list ->                  list.collect { processelement(it, list.size()) }              } 

but uses with instead of intermediate result.

or, use delegate of closure:

def foo = [1,2,3,4,5] def collector = { -> processelement(it, delegate.size()) }  (collector.delegate = foo.findall { somecondition(it) }).collect collector 

but using delegate intermediate result ;-)