IteratorFactory::directSequence()   A
last analyzed

Complexity

Conditions 2
Paths 1

Size

Total Lines 9
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 5
CRAP Score 2

Importance

Changes 1
Bugs 0 Features 0
Metric Value
eloc 5
dl 0
loc 9
ccs 5
cts 5
cp 1
rs 10
c 1
b 0
f 0
cc 2
nc 1
nop 1
crap 2
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<?php
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/**
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 * @author Maxim Sokolovsky
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 */
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namespace WS\Utils\Collections\Iterator;
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class IteratorFactory
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{
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    public static function directSequence($length): Iterator
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    {
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        $current = 0;
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        return new CallbackIterator(static function () use (& $current, $length) {
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            if ($current === $length) {
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                return (new IterateResult())->setAsRunOut();
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            }
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            return (new IterateResult())->setValue($current++);
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        });
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    }
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    public static function reverseSequence($length): Iterator
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    {
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        $current = $length - 1;
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        return new CallbackIterator(static function () use (& $current) {
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            if ($current === -1) {
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                return (new IterateResult())->setAsRunOut();
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            }
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            return (new IterateResult())->setValue($current--);
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        });
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    }
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}
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