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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\VarDumper\Caster;
use Symfony\Component\VarDumper\Cloner\Stub;
/**
* Helper for filtering out properties in casters.
*
* @author Nicolas Grekas <p@tchwork.com>
*
* @final
*/
class Caster
{
const EXCLUDE_VERBOSE = 1;
const EXCLUDE_VIRTUAL = 2;
const EXCLUDE_DYNAMIC = 4;
const EXCLUDE_PUBLIC = 8;
const EXCLUDE_PROTECTED = 16;
const EXCLUDE_PRIVATE = 32;
const EXCLUDE_NULL = 64;
const EXCLUDE_EMPTY = 128;
const EXCLUDE_NOT_IMPORTANT = 256;
const EXCLUDE_STRICT = 512;
const PREFIX_VIRTUAL = "\0~\0";
const PREFIX_DYNAMIC = "\0+\0";
const PREFIX_PROTECTED = "\0*\0";
/**
* Casts objects to arrays and adds the dynamic property prefix.
*
* @param object $obj The object to cast
* @param string $class The class of the object
* @param bool $hasDebugInfo Whether the __debugInfo method exists on $obj or not
*
* @return array The array-cast of the object, with prefixed dynamic properties
*/
public static function castObject($obj, $class, $hasDebugInfo = false)
{
if ($class instanceof \ReflectionClass) {
@trigger_error(sprintf('Passing a ReflectionClass to "%s()" is deprecated since Symfony 3.3 and will be unsupported in 4.0. Pass the class name as string instead.', __METHOD__), E_USER_DEPRECATED);
$hasDebugInfo = $class->hasMethod('__debugInfo');
$class = $class->name;
}
$a = $obj instanceof \Closure ? [] : (array) $obj;
if ($obj instanceof \__PHP_Incomplete_Class) {
return $a;
}
if ($a) {
static $publicProperties = [];
$i = 0;
$prefixedKeys = [];
foreach ($a as $k => $v) {
if (isset($k[0]) ? "\0" !== $k[0] : \PHP_VERSION_ID >= 70200) {
if (!isset($publicProperties[$class])) {
foreach (get_class_vars($class) as $prop => $v) {
$publicProperties[$class][$prop] = true;
}
}
if (!isset($publicProperties[$class][$k])) {
$prefixedKeys[$i] = self::PREFIX_DYNAMIC.$k;
}
} elseif (isset($k[16]) && "\0" === $k[16] && 0 === strpos($k, "\0class@anonymous\0")) {
$prefixedKeys[$i] = "\0".get_parent_class($class).'@anonymous'.strrchr($k, "\0");
}
++$i;
}
if ($prefixedKeys) {
$keys = array_keys($a);
foreach ($prefixedKeys as $i => $k) {
$keys[$i] = $k;
}
$a = array_combine($keys, $a);
}
}
if ($hasDebugInfo && \is_array($debugInfo = $obj->__debugInfo())) {
foreach ($debugInfo as $k => $v) {
if (!isset($k[0]) || "\0" !== $k[0]) {
$k = self::PREFIX_VIRTUAL.$k;
}
unset($a[$k]);
$a[$k] = $v;
}
}
return $a;
}
/**
* Filters out the specified properties.
*
* By default, a single match in the $filter bit field filters properties out, following an "or" logic.
* When EXCLUDE_STRICT is set, an "and" logic is applied: all bits must match for a property to be removed.
*
* @param array $a The array containing the properties to filter
* @param int $filter A bit field of Caster::EXCLUDE_* constants specifying which properties to filter out
* @param string[] $listedProperties List of properties to exclude when Caster::EXCLUDE_VERBOSE is set, and to preserve when Caster::EXCLUDE_NOT_IMPORTANT is set
* @param int &$count Set to the number of removed properties
*
* @return array The filtered array
*/
public static function filter(array $a, $filter, array $listedProperties = [], &$count = 0)
{
$count = 0;
foreach ($a as $k => $v) {
$type = self::EXCLUDE_STRICT & $filter;
if (null === $v) {
$type |= self::EXCLUDE_NULL & $filter;
$type |= self::EXCLUDE_EMPTY & $filter;
} elseif (false === $v || '' === $v || '0' === $v || 0 === $v || 0.0 === $v || [] === $v) {
$type |= self::EXCLUDE_EMPTY & $filter;
}
if ((self::EXCLUDE_NOT_IMPORTANT & $filter) && !\in_array($k, $listedProperties, true)) {
$type |= self::EXCLUDE_NOT_IMPORTANT;
}
if ((self::EXCLUDE_VERBOSE & $filter) && \in_array($k, $listedProperties, true)) {
$type |= self::EXCLUDE_VERBOSE;
}
if (!isset($k[1]) || "\0" !== $k[0]) {
$type |= self::EXCLUDE_PUBLIC & $filter;
} elseif ('~' === $k[1]) {
$type |= self::EXCLUDE_VIRTUAL & $filter;
} elseif ('+' === $k[1]) {
$type |= self::EXCLUDE_DYNAMIC & $filter;
} elseif ('*' === $k[1]) {
$type |= self::EXCLUDE_PROTECTED & $filter;
} else {
$type |= self::EXCLUDE_PRIVATE & $filter;
}
if ((self::EXCLUDE_STRICT & $filter) ? $type === $filter : $type) {
unset($a[$k]);
++$count;
}
}
return $a;
}
public static function castPhpIncompleteClass(\__PHP_Incomplete_Class $c, array $a, Stub $stub, $isNested)
{
if (isset($a['__PHP_Incomplete_Class_Name'])) {
$stub->class .= '('.$a['__PHP_Incomplete_Class_Name'].')';
unset($a['__PHP_Incomplete_Class_Name']);
}
return $a;
}
}
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