class StringUtil

class StringUtil {
    private $verbose;
    
    /**
     * @param bool $verbose
     */
    public function __construct($verbose = true) {
        $this->verbose = $verbose;
    }
    
    /**
     * 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($value), spl_object_id($value));
        }
        if (\is_bool($value)) {
            return $value ? 'true' : 'false';
        }
        if (\is_string($value)) {
            $str = sprintf('"%s"', str_replace("\n", '\\n', $value));
            if (!$this->verbose && 50 <= strlen($str)) {
                return substr($str, 0, 50) . '"...';
            }
            return $str;
        }
        if (null === $value) {
            return 'null';
        }
        \assert(\is_int($value) || \is_float($value));
        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));
    }

}