Completed
Push — master ( cb0ced...7754cf )
by Edward
04:45
created

LengthAggregator::tryAggregate()   A

Complexity

Conditions 3
Paths 4

Size

Total Lines 9
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 12

Importance

Changes 0
Metric Value
cc 3
eloc 6
nc 4
nop 1
dl 0
loc 9
ccs 0
cts 7
cp 0
crap 12
rs 10
c 0
b 0
f 0
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<?php
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declare(strict_types=1);
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namespace Remorhaz\JSON\Path\Runtime\Aggregator;
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use function iterator_count;
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use Remorhaz\JSON\Data\Value\ArrayValueInterface;
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use Remorhaz\JSON\Path\Value\LiteralScalarValue;
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use Remorhaz\JSON\Data\Value\ValueInterface;
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final class LengthAggregator implements ValueAggregatorInterface
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{
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    public function tryAggregate(ValueInterface $value): ?ValueInterface
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    {
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        $length = $value instanceof ArrayValueInterface
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            ? iterator_count($value->createChildIterator())
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            : null;
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        return isset($length)
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            ? new LiteralScalarValue($length)
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            : null;
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    }
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}
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