committable6

query

my \a = gather for ^3 -> $x { for ^3 -> $y { take ($x,$y) } }; my \it = a.iterator; until it =:= IterationEnd { it.pull-one.say; }

result

¦«2016.01.1,2016.02,2016.03,2016.04»:
(0 0)
(0 1)
(0 2)
(1 0)
(1 1)
(1 2)
(2 0)
(2 1)
(2 2)

Cannot invoke this object (REPR: Uninstantiable)
  in block <unit> at /tmp/6vieF1nicU line 1

 «exit code = 1»
¦«2016.05,2016.06,2016.07.1,2016.08.1,2016.09,2016.10,2016.11,2016.12,
  2017.01,2017.02,2017.03,2017.04.3,2017.05,2017.06,2017.07,2017.08»:
(0 0)
(0 1)
(0 2)
(1 0)
(1 1)
(1 2)
(2 0)
(2 1)
(2 2)

Cannot invoke this object (REPR: Uninstantiable; Callable)
  in block <unit> at /tmp/6vieF1nicU line 1

 «exit code = 1»
¦«2017.09,2017.10,2017.11,2017.12,2018.01,2018.02.1,2018.03,HEAD(74b7559)»:
(0 0)
Cannot invoke this object (REPR: Uninstantiable; Callable)
  in block <unit> at /tmp/6vieF1nicU line 1

(0 1)
(0 2)
(1 0)
(1 1)
(1 2)
(2 0)
(2 1)
(2 2)

 «exit code = 1»