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‎.gitignore‎

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/.idea
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/vendor/
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composer.lock

‎.travis.yml‎

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language: php
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php:
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- nightly
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- hhvm
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- 7.1
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- 7.0
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- 5.6
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- 5.5
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- 5.4
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sudo: false
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before_script:
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- composer install --dev --no-interaction
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matrix:
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allow_failures:
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- php: hhvm
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- php: nightly
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fast_finish: true
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script:
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- ./vendor/bin/phpunit -v --configuration phpunit.xml --coverage-text ./tests/
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cache:
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directories:
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- $HOME/.composer/cache

‎LICENSE‎

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The MIT License (MIT)
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Copyright (c) 2017 Viacheslav Poturaev
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

‎README.md‎

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# phperf/pipeline
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Data processing pipeline
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[![Build Status](https://travis-ci.org/phperf/pipeline.svg?branch=master)](https://travis-ci.org/phperf/pipeline)
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[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/phperf/pipeline/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/phperf/pipeline/?branch=master)
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[![Code Climate](https://codeclimate.com/github/phperf/pipeline/badges/gpa.svg)](https://codeclimate.com/github/phperf/pipeline)
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## Installation
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```
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composer require phperf/pipeline
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```
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## Usage
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TBD

‎composer.json‎

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{
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"name": "phperf/pipeline",
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"description": "Data processing pipeline",
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"type": "library",
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"license": "MIT",
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"authors": [
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{
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"name": "Viacheslav Poturaev",
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"email": "[email protected]"
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}
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],
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"require": {
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},
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"autoload": {
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"psr-4": {
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"Phperf\\Pipeline\\": "src/"
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}
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},
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"require-dev": {
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"phpunit/phpunit": "^4.0"
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}
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}

‎phpunit.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<phpunit
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colors="true"
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processIsolation="false"
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stopOnFailure="false"
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syntaxCheck="false"
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convertErrorsToExceptions="true"
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convertNoticesToExceptions="true"
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convertWarningsToExceptions="true"
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testSuiteLoaderClass="PHPUnit_Runner_StandardTestSuiteLoader">
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<testsuites>
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<testsuite name="Tests">
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<directory>./tests</directory>
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</testsuite>
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</testsuites>
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<filter>
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<whitelist processUncoveredFilesFromWhitelist="true">
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<directory suffix=".php">./src/</directory>
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</whitelist>
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</filter>
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</phpunit>

‎src/Page/PageIterator.php‎

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<?php
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namespace Phperf\Pipeline\Page;
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use ArrayIterator;
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use Iterator;
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class PageIterator implements Iterator
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{
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private $iterators;
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/**
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* @var Iterator
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*/
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private $currentIterator;
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function __construct(Iterator $iterators)
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{
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$this->iterators = $iterators;
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Return the current element
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* @link http://php.net/manual/en/iterator.current.php
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* @return mixed Can return any type.
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*/
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public function current()
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{
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return $this->currentIterator->current();
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Move forward to next element
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* @link http://php.net/manual/en/iterator.next.php
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* @return void Any returned value is ignored.
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*/
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public function next()
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{
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$this->currentIterator->next();
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Return the key of the current element
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* @link http://php.net/manual/en/iterator.key.php
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* @return mixed scalar on success, or null on failure.
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*/
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public function key()
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{
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//echo 'k';
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return $this->currentIterator->key();
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Checks if current position is valid
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* @link http://php.net/manual/en/iterator.valid.php
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* @return boolean The return value will be casted to boolean and then evaluated.
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* Returns true on success or false on failure.
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*/
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public function valid()
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{
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$v = $this->currentIterator->valid();
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if (!$v) {
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do {
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$this->iterators->next();
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if ($this->iterators->valid()) {
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$this->currentIterator = $this->iterators->current();
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$this->currentIterator->rewind();
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}
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} while ($this->iterators->valid() && !$this->currentIterator->valid());
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if (!$this->currentIterator->valid()) {
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return false;
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} else {
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return true;
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}
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}
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return $v;
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Rewind the Iterator to the first element
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* @link http://php.net/manual/en/iterator.rewind.php
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* @return void Any returned value is ignored.
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*/
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public function rewind()
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{
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$this->iterators->rewind();
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if (!$this->iterators->valid()) {
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$this->currentIterator = new ArrayIterator(array());
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} else {
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$this->currentIterator = $this->iterators->current();
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}
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$this->currentIterator->rewind();
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}
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}

‎src/Rows/ClosureIterator.php‎

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<?php
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namespace Phperf\Pipeline\Rows;
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use Closure;
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use Iterator;
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class ClosureIterator implements Iterator
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{
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/**
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* @var callable
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*/
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private $source;
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private $currentIterator;
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public function __construct(Closure $source)
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{
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$this->source = $source;
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Return the current element
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* @link http://php.net/manual/en/iterator.current.php
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* @return mixed Can return any type.
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*/
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public function current()
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{
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return $this->currentIterator;
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Move forward to next element
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* @link http://php.net/manual/en/iterator.next.php
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* @return void Any returned value is ignored.
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*/
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public function next()
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{
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$c = $this->source;
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$this->currentIterator = $c();
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Return the key of the current element
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* @link http://php.net/manual/en/iterator.key.php
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* @return mixed scalar on success, or null on failure.
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*/
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public function key()
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{
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return '';
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Checks if current position is valid
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* @link http://php.net/manual/en/iterator.valid.php
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* @return boolean The return value will be casted to boolean and then evaluated.
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* Returns true on success or false on failure.
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*/
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public function valid()
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{
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return (bool)$this->currentIterator;
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}
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/**
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* (PHP 5 &gt;= 5.0.0)<br/>
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* Rewind the Iterator to the first element
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* @link http://php.net/manual/en/iterator.rewind.php
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* @return void Any returned value is ignored.
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*/
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public function rewind()
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{
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$c = $this->source;
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$this->currentIterator = $c();
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}
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}

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