# The index of the last occurrence of `item` starting from `pos` and decrementing.
# Return -1 if `item` is not found.
# Comparison is done with `==`.
#
# var a = [10,20,30,10,20,30]
# assert a.last_index_of_from(20, 2) == 1
# assert a.last_index_of_from(20, 1) == 1
# assert a.last_index_of_from(20, 0) == -1
fun last_index_of_from(item: nullable Object, pos: Int): Int do
var i = pos
while i >= 0 do
if self[i] == item then return i
i -= 1
end
return -1
end
lib/core/collection/abstract_collection.nit:983,2--998,4
redef fun last_index_of_from(e, from)
do
mutex.lock
var r = real_collection.last_index_of_from(e, from)
mutex.unlock
return r
end
lib/pthreads/concurrent_collections.nit:252,2--258,4