ValueIteratorFactory::createArrayIterator() - Code Metrics - Inspection of "Structure values incapsulate construction of child..." - remorhaz/php-json-path - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( cb0ced...7754cf )

by Edward

created 2019-08-09 09:42 UTC

ValueIteratorFactory::createArrayIterator() A

↳ Parent: ValueIteratorFactory

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	1
dl	0
loc	3
ccs	0
cts	2
cp	0
crap	2
rs	10
c	0
b	0
f	0

<?php
declare(strict_types=1);

namespace Remorhaz\JSON\Data\Iterator;

use Generator;
use Iterator;
use Remorhaz\JSON\Data\Event\AfterArrayEventInterface;
use Remorhaz\JSON\Data\Event\AfterObjectEventInterface;
use Remorhaz\JSON\Data\Event\BeforeArrayEventInterface;
use Remorhaz\JSON\Data\Event\BeforeObjectEventInterface;
use Remorhaz\JSON\Data\Event\DataEventInterface;
use Remorhaz\JSON\Data\Event\ElementEventInterface;
use Remorhaz\JSON\Data\Event\PropertyEventInterface;
use Remorhaz\JSON\Data\Event\ScalarEventInterface;
use Remorhaz\JSON\Data\Value\ValueInterface;

final class ValueIteratorFactory implements ValueIteratorFactoryInterface
{

    /**
     * @param Iterator $eventIterator
     * @return Iterator|ValueInterface[]
     */
    public function createArrayIterator(Iterator $eventIterator): Iterator
    {
        return $this->createArrayGenerator($eventIterator);
    }

    /**
     * @param Iterator $eventIterator
     * @return Generator|ValueInterface[]
     */
    private function createArrayGenerator(Iterator $eventIterator): Generator
    {
        $event = $this->fetchEvent($eventIterator);
        if (!$event instanceof BeforeArrayEventInterface) {
            throw new Exception\UnexpectedDataEventException($event, BeforeArrayEventInterface::class);
        }

        do {
            $event = $this->fetchEvent($eventIterator);
            if ($event instanceof AfterArrayEventInterface) {
                return;
            }

            if (!$event instanceof ElementEventInterface) {
                throw new Exception\UnexpectedDataEventException($event, ElementEventInterface::class);
            }
            $index = $event->getIndex();

            yield $index => $this->fetchValue($eventIterator);
        } while (true);
    }

    /**
     * @param Iterator $eventIterator
     * @return Iterator|ValueInterface[]
     */
    public function createObjectIterator(Iterator $eventIterator): Iterator
    {
        return $this->createObjectGenerator($eventIterator);
    }

    /**
     * @param Iterator $eventIterator
     * @return Generator|ValueInterface[]
     */
    public function createObjectGenerator(Iterator $eventIterator): Generator
    {
        $event = $this->fetchEvent($eventIterator);
        if (!$event instanceof BeforeObjectEventInterface) {
            throw new Exception\UnexpectedDataEventException($event, BeforeObjectEventInterface::class);
        }

        do {
            $event = $this->fetchEvent($eventIterator);
            if ($event instanceof AfterObjectEventInterface) {
                return;
            }

            if (!$event instanceof PropertyEventInterface) {
                throw new Exception\UnexpectedDataEventException($event, PropertyEventInterface::class);
            }
            $property = $event->getName();

            yield $property => $this->fetchValue($eventIterator);
        } while (true);
    }

    private function fetchEvent(Iterator $eventIterator): DataEventInterface
    {
        if (!$eventIterator->valid()) {
            throw new Exception\UnexpectedEndOfDataEventsException;
        }
        $event = $eventIterator->current();
        $eventIterator->next();

        if (!$event instanceof DataEventInterface) {
            throw new Exception\InvalidDataEventException($event);
        }

        return $event;
    }

    private function skipValue(Iterator $eventIterator): void
    {
        $event = $this->fetchEvent($eventIterator);
        if ($event instanceof ScalarEventInterface) {
            return;
        }

        if ($event instanceof BeforeArrayEventInterface) {
            $this->skipArrayValue($eventIterator);
            return;
        }

        if ($event instanceof BeforeObjectEventInterface) {
            $this->skipObjectValue($eventIterator);
            return;
        }

        throw new Exception\InvalidDataEventException($event);
    }

    private function fetchValue(Iterator $eventIterator): ValueInterface
    {
        $event = $this->fetchEvent($eventIterator);
        if ($event instanceof ScalarEventInterface) {
            return $event->getValue();
        }
        if ($event instanceof BeforeArrayEventInterface) {
            $this->skipArrayValue($eventIterator);
            return $event->getValue();
        }

        if ($event instanceof BeforeObjectEventInterface) {
            $this->skipObjectValue($eventIterator);
            return $event->getValue();
        }

        throw new Exception\InvalidDataEventException($event);
    }

    private function skipArrayValue(Iterator $eventIterator): void
    {
        do {
            $event = $this->fetchEvent($eventIterator);
            if ($event instanceof ElementEventInterface) {
                $this->skipValue($eventIterator);
                continue;
            }
            if ($event instanceof AfterArrayEventInterface) {
                return;
            }
            throw new Exception\InvalidDataEventException($event);
        } while (true);
    }

    private function skipObjectValue(Iterator $eventIterator): void
    {
        do {
            $event = $this->fetchEvent($eventIterator);
            if ($event instanceof PropertyEventInterface) {
                $this->skipValue($eventIterator);
                continue;
            }
            if ($event instanceof AfterObjectEventInterface) {
                return;
            }
            throw new Exception\InvalidDataEventException($event);
        } while (true);
    }
}


1			<?php
2			declare(strict_types=1);
3
4			namespace Remorhaz\JSON\Data\Iterator;
5
6			use Generator;
7			use Iterator;
8			use Remorhaz\JSON\Data\Event\AfterArrayEventInterface;
9			use Remorhaz\JSON\Data\Event\AfterObjectEventInterface;
10			use Remorhaz\JSON\Data\Event\BeforeArrayEventInterface;
11			use Remorhaz\JSON\Data\Event\BeforeObjectEventInterface;
12			use Remorhaz\JSON\Data\Event\DataEventInterface;
13			use Remorhaz\JSON\Data\Event\ElementEventInterface;
14			use Remorhaz\JSON\Data\Event\PropertyEventInterface;
15			use Remorhaz\JSON\Data\Event\ScalarEventInterface;
16			use Remorhaz\JSON\Data\Value\ValueInterface;
17
18			final class ValueIteratorFactory implements ValueIteratorFactoryInterface
19			{
20
21			/**
22			* @param Iterator $eventIterator
23			* @return Iterator\|ValueInterface[]
24			*/
25			public function createArrayIterator(Iterator $eventIterator): Iterator
26			{
27			return $this->createArrayGenerator($eventIterator);
28			}
29
30			/**
31			* @param Iterator $eventIterator
32			* @return Generator\|ValueInterface[]
33			*/
34			private function createArrayGenerator(Iterator $eventIterator): Generator
35			{
36			$event = $this->fetchEvent($eventIterator);
37			if (!$event instanceof BeforeArrayEventInterface) {
38			throw new Exception\UnexpectedDataEventException($event, BeforeArrayEventInterface::class);
39			}
40
41			do {
42			$event = $this->fetchEvent($eventIterator);
43			if ($event instanceof AfterArrayEventInterface) {
44			return;
45			}
46
47			if (!$event instanceof ElementEventInterface) {
48			throw new Exception\UnexpectedDataEventException($event, ElementEventInterface::class);
49			}
50			$index = $event->getIndex();
51
52			yield $index => $this->fetchValue($eventIterator);
53			} while (true);
54			}
55
56			/**
57			* @param Iterator $eventIterator
58			* @return Iterator\|ValueInterface[]
59			*/
60			public function createObjectIterator(Iterator $eventIterator): Iterator
61			{
62			return $this->createObjectGenerator($eventIterator);
63			}
64
65			/**
66			* @param Iterator $eventIterator
67			* @return Generator\|ValueInterface[]
68			*/
69			public function createObjectGenerator(Iterator $eventIterator): Generator
70			{
71			$event = $this->fetchEvent($eventIterator);
72			if (!$event instanceof BeforeObjectEventInterface) {
73			throw new Exception\UnexpectedDataEventException($event, BeforeObjectEventInterface::class);
74			}
75
76			do {
77			$event = $this->fetchEvent($eventIterator);
78			if ($event instanceof AfterObjectEventInterface) {
79			return;
80			}
81
82			if (!$event instanceof PropertyEventInterface) {
83			throw new Exception\UnexpectedDataEventException($event, PropertyEventInterface::class);
84			}
85			$property = $event->getName();
86
87			yield $property => $this->fetchValue($eventIterator);
88			} while (true);
89			}
90
91			private function fetchEvent(Iterator $eventIterator): DataEventInterface
92			{
93			if (!$eventIterator->valid()) {
94			throw new Exception\UnexpectedEndOfDataEventsException;
95			}
96			$event = $eventIterator->current();
97			$eventIterator->next();
98
99			if (!$event instanceof DataEventInterface) {
100			throw new Exception\InvalidDataEventException($event);
101			}
102
103			return $event;
104			}
105
106			private function skipValue(Iterator $eventIterator): void
107			{
108			$event = $this->fetchEvent($eventIterator);
109			if ($event instanceof ScalarEventInterface) {
110			return;
111			}
112
113			if ($event instanceof BeforeArrayEventInterface) {
114			$this->skipArrayValue($eventIterator);
115			return;
116			}
117
118			if ($event instanceof BeforeObjectEventInterface) {
119			$this->skipObjectValue($eventIterator);
120			return;
121			}
122
123			throw new Exception\InvalidDataEventException($event);
124			}
125
126			private function fetchValue(Iterator $eventIterator): ValueInterface
127			{
128			$event = $this->fetchEvent($eventIterator);
129			if ($event instanceof ScalarEventInterface) {
130			return $event->getValue();
131			}
132			if ($event instanceof BeforeArrayEventInterface) {
133			$this->skipArrayValue($eventIterator);
134			return $event->getValue();
135			}
136
137			if ($event instanceof BeforeObjectEventInterface) {
138			$this->skipObjectValue($eventIterator);
139			return $event->getValue();
140			}
141
142			throw new Exception\InvalidDataEventException($event);
143			}
144
145			private function skipArrayValue(Iterator $eventIterator): void
146			{
147			do {
148			$event = $this->fetchEvent($eventIterator);
149			if ($event instanceof ElementEventInterface) {
150			$this->skipValue($eventIterator);
151			continue;
152			}
153			if ($event instanceof AfterArrayEventInterface) {
154			return;
155			}
156			throw new Exception\InvalidDataEventException($event);
157			} while (true);
158			}
159
160			private function skipObjectValue(Iterator $eventIterator): void
161			{
162			do {
163			$event = $this->fetchEvent($eventIterator);
164			if ($event instanceof PropertyEventInterface) {
165			$this->skipValue($eventIterator);
166			continue;
167			}
168			if ($event instanceof AfterObjectEventInterface) {
169			return;
170			}
171			throw new Exception\InvalidDataEventException($event);
172			} while (true);
173			}
174			}
175

remorhaz / php-json-path

Push — master ( cb0ced...7754cf )

ValueIteratorFactory::createArrayIterator() A

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