LookaheadIterator::toIterator() - Code Metrics - Inspection of "Improve analyzer and grammar structures" - railt/compiler - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 69b695...671bd7 )

by Kirill

created 2018-06-20 22:12 UTC

LookaheadIterator::toIterator() A

↳ Parent: LookaheadIterator

Complexity

Conditions	4
Paths	4

Size

Total Lines	13
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	20

Importance

Changes

Metric	Value
dl	0
loc	13
ccs	0
cts	12
cp	0
rs	9.2
c	0
b	0
f	0
cc	4
eloc	9
nc	4
nop	1
crap	20

<?php
/**
 * This file is part of Railt package.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
declare(strict_types=1);

namespace Railt\Compiler\Iterator;

/**
 * Class LookaheadIterator
 */
class LookaheadIterator implements \Iterator
{
    /**
     * @var \Traversable
     */
    protected $iterator;

    /**
     * @var int
     */
    protected $key = 0;

    /**
     * @var mixed
     */
    protected $current;

    /**
     * @var bool
     */
    protected $valid;

    /**
     * LookaheadIterator constructor.
     * @param iterable $iterator
     * @throws \InvalidArgumentException
     */
    public function __construct(iterable $iterator)
    {
        $this->iterator = $this->toIterator($iterator);
        $this->current = $this->iterator->current();
        $this->key = $this->iterator->key();
        $this->valid = $this->iterator->valid();

        $this->rewind();
    }

    /**
     * @param iterable $iterator
     * @return \Iterator
     * @throws \InvalidArgumentException
     */
    private function toIterator(iterable $iterator): \Iterator
    {
        switch (true) {
            case $iterator instanceof \Iterator:
                return $iterator;
            case $iterator instanceof \Traversable:
                return new \IteratorIterator($iterator);
            case \is_array($iterator):
                return new \ArrayIterator($iterator);
        }

        throw new \InvalidArgumentException('Unsupported iterator type');
    }

    /**
     * @return mixed
     */
    public function current()
    {
        return $this->current;
    }

    /**
     * @return int|mixed
     */
    public function key()
    {
        return $this->key;
    }

    /**
     * Rewind the iterator to the first element.
     * @return void
     */
    public function rewind(): void
    {
        $this->iterator->rewind();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
        $this->next();
    }

    /**
     * Move forward to next element.
     *
     * @return void
     */
    public function next(): void
    {
        $this->valid  = $this->iterator->valid();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

        if ($this->valid === false) {
            return;
        }

        $this->key     = $this->iterator->key();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
        $this->current = $this->iterator->current();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

        $this->iterator->next();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
    }

    /**
     * Check if current position is valid.
     *
     * @return bool
     */
    public function valid(): bool
    {
        return $this->valid;
    }

    /**
     * Check whether there is a next element.
     *
     * @return bool
     */
    public function hasNext(): bool
    {
        return $this->iterator->valid();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
    }

    /**
     * Get next value.
     *
     * @return mixed
     */
    public function getNext()
    {
        return $this->iterator->current();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
    }

    /**
     * Get next key.
     *
     * @return mixed
     */
    public function getNextKey()
    {
        return $this->iterator->key();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
    }
}


1			<?php
2			/**
3			* This file is part of Railt package.
4			*
5			* For the full copyright and license information, please view the LICENSE
6			* file that was distributed with this source code.
7			*/
8			declare(strict_types=1);
9
10			namespace Railt\Compiler\Iterator;
11
12			/**
13			* Class LookaheadIterator
14			*/
15			class LookaheadIterator implements \Iterator
16			{
17			/**
18			* @var \Traversable
19			*/
20			protected $iterator;
21
22			/**
23			* @var int
24			*/
25			protected $key = 0;
26
27			/**
28			* @var mixed
29			*/
30			protected $current;
31
32			/**
33			* @var bool
34			*/
35			protected $valid;
36
37			/**
38			* LookaheadIterator constructor.
39			* @param iterable $iterator
40			* @throws \InvalidArgumentException
41			*/
42			public function __construct(iterable $iterator)
43			{
44			$this->iterator = $this->toIterator($iterator);
45			$this->current = $this->iterator->current();
46			$this->key = $this->iterator->key();
47			$this->valid = $this->iterator->valid();
48
49			$this->rewind();
50			}
51
52			/**
53			* @param iterable $iterator
54			* @return \Iterator
55			* @throws \InvalidArgumentException
56			*/
57			private function toIterator(iterable $iterator): \Iterator
58			{
59			switch (true) {
60			case $iterator instanceof \Iterator:
61			return $iterator;
62			case $iterator instanceof \Traversable:
63			return new \IteratorIterator($iterator);
64			case \is_array($iterator):
65			return new \ArrayIterator($iterator);
66			}
67
68			throw new \InvalidArgumentException('Unsupported iterator type');
69			}
70
71			/**
72			* @return mixed
73			*/
74			public function current()
75			{
76			return $this->current;
77			}
78
79			/**
80			* @return int\|mixed
81			*/
82			public function key()
83			{
84			return $this->key;
85			}
86
87			/**
88			* Rewind the iterator to the first element.
89			* @return void
90			*/
91			public function rewind(): void
92			{
93			$this->iterator->rewind();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `rewind()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
94			$this->next();
95			}
96
97			/**
98			* Move forward to next element.
99			*
100			* @return void
101			*/
102			public function next(): void
103			{
104			$this->valid = $this->iterator->valid();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `valid()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
105
106			if ($this->valid === false) {
107			return;
108			}
109
110			$this->key = $this->iterator->key();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `key()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
111			$this->current = $this->iterator->current();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `current()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
112
113			$this->iterator->next();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `next()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
114			}
115
116			/**
117			* Check if current position is valid.
118			*
119			* @return bool
120			*/
121			public function valid(): bool
122			{
123			return $this->valid;
124			}
125
126			/**
127			* Check whether there is a next element.
128			*
129			* @return bool
130			*/
131			public function hasNext(): bool
132			{
133			return $this->iterator->valid();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `valid()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
134			}
135
136			/**
137			* Get next value.
138			*
139			* @return mixed
140			*/
141			public function getNext()
142			{
143			return $this->iterator->current();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `current()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
144			}
145
146			/**
147			* Get next key.
148			*
149			* @return mixed
150			*/
151			public function getNextKey()
152			{
153			return $this->iterator->key();
			0 ignored issues – show Bug introduced 2018-06-20 22:19 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Traversable` as the method `key()` does only exist in the following implementations of said interface: `APCUIterator`, `AppendIterator`, `ArrayIterator`, `CachingIterator`, `CallbackFilterIterator`, `Carbon\CarbonPeriod`, `CoreTestIterator`, `DirectoryIterator`, `EmptyIterator`, `File_Iterator`, `FilesystemIterator`, `FilterIterator`, `Generator`, `GlobIterator`, `HttpMessage`, `HttpRequestPool`, `Imagick`, `ImagickPixelIterator`, `InfiniteIterator`, `Issue523`, `IteratorIterator`, `LimitIterator`, `MongoCommandCursor`, `MongoCursor`, `MongoGridFSCursor`, `MultipleIterator`, `NoRewindIterator`, `PHPUnit\Framework\TestSuiteIterator`, `PHPUnit\Runner\Filter\ExcludeGroupFilterIterator`, `PHPUnit\Runner\Filter\GroupFilterIterator`, `PHPUnit\Runner\Filter\IncludeGroupFilterIterator`, `PHPUnit\Runner\Filter\NameFilterIterator`, `PHP_Token_Stream`, `ParentIterator`, `Phar`, `PharData`, `PharIo\Manifest\AuthorCollectionIterator`, `PharIo\Manifest\AuthorElementCollection`, `PharIo\Manifest\BundledComponentCollectionIterator`, `PharIo\Manifest\ComponentElementCollection`, `PharIo\Manifest\ElementCollection`, `PharIo\Manifest\ExtElementCollection`, `PharIo\Manifest\RequirementCollectionIterator`, `Railt\Compiler\Iterator\LookaheadIterator`, `Railt\Parser\Iterator\Buffer`, `Railt\Parser\Iterator\PairBuffer`, `RecursiveArrayIterator`, `RecursiveCachingIterator`, `RecursiveCallbackFilterIterator`, `RecursiveDirectoryIterator`, `RecursiveFilterIterator`, `RecursiveIteratorIterator`, `RecursiveRegexIterator`, `RecursiveTreeIterator`, `RegexIterator`, `SQLiteResult`, `SebastianBergmann\CodeCoverage\Node\Iterator`, `SimpleXMLIterator`, `SplDoublyLinkedList`, `SplFileObject`, `SplFixedArray`, `SplHeap`, `SplMaxHeap`, `SplMinHeap`, `SplObjectStorage`, `SplPriorityQueue`, `SplQueue`, `SplStack`, `SplTempFileObject`, `Symfony\Component\Finder...or\CustomFilterIterator`, `Symfony\Component\Finder...DateRangeFilterIterator`, `Symfony\Component\Finder...epthRangeFilterIterator`, `Symfony\Component\Finder...DirectoryFilterIterator`, `Symfony\Component\Finder...\FileTypeFilterIterator`, `Symfony\Component\Finder...lecontentFilterIterator`, `Symfony\Component\Finder...\FilenameFilterIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\Finder...ator\PathFilterIterator`, `Symfony\Component\Finder...ursiveDirectoryIterator`, `Symfony\Component\Finder...SizeRangeFilterIterator`, `Symfony\Component\Finder...rator\InnerNameIterator`, `Symfony\Component\Finder...rator\InnerSizeIterator`, `Symfony\Component\Finder...rator\InnerTypeIterator`, `Symfony\Component\Finder\Tests\Iterator\Iterator`, `Symfony\Component\Finder...or\MockFileListIterator`, `Symfony\Component\Finder...tiplePcreFilterIterator`, `Symfony\Component\VarDum...\Caster\MyArrayIterator`, `TestIterator`, `TestIterator2`, `TheSeer\Tokenizer\TokenCollection`, `TwigTestFoo`, `Twig\Util\TemplateDirIterator`, `Twig_Util_TemplateDirIterator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
154			}
155			}
156

railt / compiler

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LookaheadIterator::toIterator() A

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