1
2
3
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5
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7
8
9
10
11
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16
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22
23
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26
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31
32
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35
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41
|
discard """
output: '''16
32
48
64
128
192
'''
disabled: "true"
"""
# This all relies on non-documented and questionable features.
iterator gaz(it: iterator{.inline.}): type(it) =
for x in it:
yield x*2
iterator baz(it: iterator{.inline.}): auto =
for x in gaz(it):
yield x*2
type T1 = auto
iterator bar(it: iterator: T1{.inline.}): T1 =
for x in baz(it):
yield x*2
iterator foo[T](x: iterator: T{.inline.}): T =
for e in bar(x):
yield e*2
var s = @[1, 2, 3]
# pass an iterator several levels deep:
for x in s.items.foo:
echo x
# use some complex iterator as an input for another one:
for x in s.items.baz.foo:
echo x
|
