core :: Ref :: defaultinit
# A collection that contains only one item.
#
# Used to pass arguments by reference.
#
# Also used when one want to give a single element when a full
# collection is expected
class Ref[E]
super Collection[E]
redef fun first do return item
redef fun is_empty do return false
redef fun length do return 1
redef fun has(an_item) do return item == an_item
redef fun has_only(an_item) do return item == an_item
redef fun count(an_item)
do
if item == an_item then
return 1
else
return 0
end
end
redef fun iterator do return new RefIterator[E](self)
# The stored item
var item: E is writable
end
lib/core/collection/abstract_collection.nit:349,1--381,3