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Filename : StringUtil.php
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<?php

/*
 * This file is part of the Prophecy.
 * (c) Konstantin Kudryashov <ever.zet@gmail.com>
 *     Marcello Duarte <marcello.duarte@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Prophecy\Util;

use Prophecy\Call\Call;

/**
 * String utility.
 *
 * @author Konstantin Kudryashov <ever.zet@gmail.com>
 */
class StringUtil
{
    /**
     * Stringifies any provided value.
     *
     * @param mixed   $value
     * @param boolean $exportObject
     *
     * @return string
     */
    public function stringify($value, $exportObject = true)
    {
        if (is_array($value)) {
            if (range(0, count($value) - 1) === array_keys($value)) {
                return '['.implode(', ', array_map(array($this, __FUNCTION__), $value)).']';
            }

            $stringify = array($this, __FUNCTION__);

            return '['.implode(', ', array_map(function ($item, $key) use ($stringify) {
                return (is_integer($key) ? $key : '"'.$key.'"').
                    ' => '.call_user_func($stringify, $item);
            }, $value, array_keys($value))).']';
        }
        if (is_resource($value)) {
            return get_resource_type($value).':'.$value;
        }
        if (is_object($value)) {
            return $exportObject ? ExportUtil::export($value) : sprintf('%s:%s', get_class($value), spl_object_hash($value));
        }
        if (true === $value || false === $value) {
            return $value ? 'true' : 'false';
        }
        if (is_string($value)) {
            $str = sprintf('"%s"', str_replace("\n", '\\n', $value));

            if (50 <= strlen($str)) {
                return substr($str, 0, 50).'"...';
            }

            return $str;
        }
        if (null === $value) {
            return 'null';
        }

        return (string) $value;
    }

    /**
     * Stringifies provided array of calls.
     *
     * @param Call[] $calls Array of Call instances
     *
     * @return string
     */
    public function stringifyCalls(array $calls)
    {
        $self = $this;

        return implode(PHP_EOL, array_map(function (Call $call) use ($self) {
            return sprintf('  - %s(%s) @ %s',
                $call->getMethodName(),
                implode(', ', array_map(array($self, 'stringify'), $call->getArguments())),
                str_replace(GETCWD().DIRECTORY_SEPARATOR, '', $call->getCallPlace())
            );
        }, $calls));
    }
}