8000 [ValueExporter] added TraversableToStringFormatter · symfony/symfony@ef747a3 · GitHub
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[ValueExporter] added TraversableToStringFormatter
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‎src/Symfony/Component/ValueExporter/Formatter/TraversableToStringFormatter.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\ValueExporter\Formatter;
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use Symfony\Component\ValueExporter\Exporter\ValueExporterInterface;
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use Symfony\Component\ValueExporter\Exporter\ValueToStringExporter;
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/**
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* Returns a string representation of an instance implementing \Traversable.
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*
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* @author Jules Pietri <jules@heahprod.com>
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*/
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class TraversableToStringFormatter implements StringFormatterInterface, ExpandedFormatterInterface
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{
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/**
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* @var ValueToStringExporter
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*/
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private $exporter;
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public function setExporter(ValueExporterInterface $exporter)
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{
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$this->exporter = $exporter;
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}
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/**
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* {@inheritdoc}
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*/
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public function supports($value)
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{
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return $value instanceof \Traversable;
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}
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/**
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* {@inheritdoc}
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*/
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public function formatToString($value)
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{
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$nested = array();
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foreach ($value as $k => $v) {
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$nested[] = sprintf('%s => %s', is_string($k) ? sprintf("'%s'", $k) : $k, $this->exporter->exportValue($v));
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}
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return sprintf("Traversable:\"%s\"(\n %s\n)", get_class($value), implode(",\n ", $nested));
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}
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}

‎src/Symfony/Component/ValueExporter/Tests/Fixtures/TraversableInstance.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\ValueExporter\Tests\Fixtures;
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/**
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* TraversableInstance.
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*
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* @author Jules Pietri <jules@heahprod.com>
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*/
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class TraversableInstance implements \IteratorAggregate
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{
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public $property1 = 'value1';
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public $property2 = 'value2';
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/**
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* {@inheritdoc}
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*/
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public function getIterator()
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{
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return new \ArrayIterator($this);
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}
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}

‎src/Symfony/Component/ValueExporter/Tests/ValueExporterTest.php

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namespace Symfony\Component\ValueExporter\Tests;
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use Symfony\Component\ValueExporter\Formatter\TraversableToStringFormatter;
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use Symfony\Component\ValueExporter\Tests\Fixtures\TraversableInstance;
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use Symfony\Component\ValueExporter\ValueExporter;
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class ValueExporterTest extends \PHPUnit_Framework_TestCase
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$this->assertSame($exportedValue, ValueExporter::export($value, 1, true));
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}
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public function testExportTraversable()
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{
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ValueExporter::appendFormatter(new TraversableToStringFormatter());
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$value = new TraversableInstance();
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$exportedValue = <<<EOT
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Traversable:"Symfony\Component\ValueExporter\Tests\Fixtures\TraversableInstance"(
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'property1' => "value1",
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'property2' => "value2"
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)
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EOT;
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$this->assertSame($exportedValue, ValueExporter::export($value));
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}
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public function valueProvider()
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{
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$foo = new \__PHP_Incomplete_Class();

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