8000 feature #14058 [VarDumper] Add filters to casters (nicolas-grekas) · symfony/symfony@bdb5096 · GitHub
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feature #14058 [VarDumper] Add filters to casters (nicolas-grekas)
This PR was merged into the 2.7 branch. Discussion ---------- [VarDumper] Add filters to casters | Q | A | ------------- | --- | Bug fix? | no | New feature? | yes | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | - | License | MIT | Doc PR | - Commits ------- 84a80d1 [VarDumper] Add filters to casters
2 parents 2533d8f + 84a80d1 commit bdb5096

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4 files changed

+244
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lines changed

4 files changed

+244
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lines changed

‎src/Symfony/Component/VarDumper/Caster/Caster.php

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@@ -0,0 +1,81 @@
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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\VarDumper\Caster;
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/**
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* Helper for filtering out properties in casters.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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class Caster
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{
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const EXCLUDE_VERBOSE = 1;
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const EXCLUDE_VIRTUAL = 2;
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const EXCLUDE_DYNAMIC = 4;
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const EXCLUDE_PUBLIC = 8;
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const EXCLUDE_PROTECTED = 16;
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const EXCLUDE_PRIVATE = 32;
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const EXCLUDE_NULL = 64;
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const EXCLUDE_EMPTY = 128;
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const EXCLUDE_NOT_IMPORTANT = 256;
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const EXCLUDE_STRICT = 512;
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/**
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* Filters out the specified properties.
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*
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* By default, a single match in the $filter bit field filters properties out, following an "or" logic.
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* When EXCLUDE_STRICT is set, an "and" logic is applied: all bits must match for a property to be removed.
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*
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* @param array $a The array containing the properties to filter.
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* @param int $filter A bit field of Caster::EXCLUDE_* constants specifying which properties to filter out.
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* @param string[] $listedProperties List of properties to exclude when Caster::EXCLUDE_VERBOSE is set, and to preserve when Caster::EXCLUDE_NOT_IMPORTANT is set.
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*
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* @return array The filtered array
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*/
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public static function filter(array $a, $filter, array $listedProperties = array())
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{
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foreach ($a as $k => $v) {
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$type = self::EXCLUDE_STRICT & $filter;
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if (null === $v) {
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$type |= self::EXCLUDE_NULL & $filter;
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}
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if (empty($v)) {
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$type |= self::EXCLUDE_EMPTY & $filter;
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}
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if ((self::EXCLUDE_NOT_IMPORTANT & $filter) && !in_array($k, $listedProperties, true)) {
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$type |= self::EXCLUDE_NOT_IMPORTANT;
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}
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if ((self::EXCLUDE_VERBOSE & $filter) && in_array($k, $listedProperties, true)) {
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$type |= self::EXCLUDE_VERBOSE;
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}
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if (!isset($k[1]) || "\0" !== $k[0]) {
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$type |= self::EXCLUDE_PUBLIC & $filter;
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} elseif ('~' === $k[1]) {
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$type |= self::EXCLUDE_VIRTUAL & $filter;
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} elseif ('+' === $k[1]) {
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$type |= self::EXCLUDE_DYNAMIC & $filter;
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} elseif ('*' === $k[1]) {
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$type |= self::EXCLUDE_PROTECTED & $filter;
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} else {
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$type |= self::EXCLUDE_PRIVATE & $filter;
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}
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if ((self::EXCLUDE_STRICT & $filter) ? $type === $filter : $type) {
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unset($a[$k]);
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}
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}
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return $a;
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}
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}

‎src/Symfony/Component/VarDumper/Caster/ExceptionCaster.php

Lines changed: 6 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -40,15 +40,17 @@ class ExceptionCaster
4040
E_STRICT => 'E_STRICT',
4141
);
4242

43-
public static function castException(\Exception $e, array $a, Stub $stub, $isNested)
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public static function castException(\Exception $e, array $a, Stub $stub, $isNested, $filter = 0)
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{
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$trace = $a["\0Exception\0trace"];
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unset($a["\0Exception\0trace"]); // Ensures the trace is always last
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48-
static::filterTrace($trace, static::$traceArgs);
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if (!($filter & Caster::EXCLUDE_VERBOSE)) {
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static::filterTrace($trace, static::$traceArgs);
4950

50-
if (null !== $trace) {
51-
$a["\0Exception\0trace"] = $trace;
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if (null !== $trace) {
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$a["\0Exception\0trace"] = $trace;
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}
5254
}
5355
if (empty($a["\0Exception\0previous"])) {
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unset($a["\0Exception\0previous"]);

‎src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php

Lines changed: 10 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -96,6 +96,7 @@ abstract class AbstractCloner implements ClonerInterface
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private $casters = array();
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private $prevErrorHandler;
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private $classInfo = array();
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private $filter = 0;
99100

100101
/**
101102
* @param callable[]|null $casters A map of casters.
@@ -149,10 +150,16 @@ public function setMaxString($maxString)
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}
150151

151152
/**
152-
* {@inheritdoc}
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* Clones a PHP variable.
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*
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* @param mixed $var Any PHP variable.
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* @param int $filter A bit field of Caster::EXCLUDE_* constants.
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*
158+
* @return Data The cloned variable represented by a Data object.
153159
*/
154-
public function cloneVar($var)
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public function cloneVar($var, $filter = 0)
155161
{
162+
$this->filter = $filter;
156163
$this->prevErrorHandler = set_error_handler(array($this, 'handleError'));
157164
try {
158165
if (!function_exists('iconv')) {
@@ -270,7 +277,7 @@ protected function castResource(Stub $stub, $isNested)
270277
private function callCaster($callback, $obj, $a, $stub, $isNested)
271278
{
272279
try {
273-
$cast = call_user_func($callback, $obj, $a, $stub, $isNested);
280+
$cast = call_user_func($callback, $obj, $a, $stub, $isNested, $this->filter);
274281

275282
if (is_array($cast)) {
276283
$a = $cast;

‎src/Symfony/Component/VarDumper/Tests/Caster/CasterTest.php

Lines changed: 147 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,147 @@
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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>
7+
*
8+
* For the full copyright and license information, please view the LICENSE
9+
* file that was distributed with this source code.
10+
*/
11+
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namespace Symfony\Component\VarDumper\Tests\Caster;
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use Symfony\Component\VarDumper\Caster\Caster;
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/**
17+
* @author Nicolas Grekas <p@tchwork.com>
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*/
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class CasterTest extends \PHPUnit_Framework_TestCase
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{
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private $referenceArray = array(
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'null' => null,
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'empty' => false,
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'public' => 'pub',
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"\0~\0virtual" => 'virt',
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"\0+\0dynamic" => 'dyn',
27+
"\0*\0protected" => 'prot',
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"\0Foo\0private" => 'priv',
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);
30+
31+
/** @dataProvider provideFilter */
32+
public function testFilter($filter, $expectedDiff, $listedProperties = null)
33+
{
34+
if (null === $listedProperties) {
35+
$filteredArray = Caster::filter($this->referenceArray, $filter);
36+
} else {
37+
$filteredArray = Caster::filter($this->referenceArray, $filter, $listedProperties);
38+
}
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40+
$this->assertSame($expectedDiff, array_diff_assoc($this->referenceArray, $filteredArray));
41+
}
42+
43+
public function provideFilter()
44+
{
45+
return array(
46+
array(
47+
0,
48+
array(),
49+
),
50+
array(
51+
Caster::EXCLUDE_PUBLIC,
52+
array(
53+
'null' => null,
54+
'empty' => false,
55+
'public' => 'pub',
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),
57+
),
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array(
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Caster::EXCLUDE_NULL,
60+
array(
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'null' => null,
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),
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),
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array(
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Caster::EXCLUDE_EMPTY,
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array(
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'null' => null,
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'empty' => false,
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),
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),
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array(
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Caster::EXCLUDE_VIRTUAL,
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array(
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"\0~\0virtual" => 'virt',
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),
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),
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array(
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Caster::EXCLUDE_DYNAMIC,
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array(
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"\0+\0dynamic" => 'dyn',
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),
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),
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array(
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Caster::EXCLUDE_PROTECTED,
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array(
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"\0*\0protected" => 'prot',
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),
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),
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array(
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Caster::EXCLUDE_PRIVATE,
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array(
92+
"\0Foo\0private" => 'priv',
93+
),
94+
),
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array(
96+
Caster::EXCLUDE_VERBOSE,
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array(
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'public' => 'pub',
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"\0*\0protected" => 'prot',
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),
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array('public', "\0*\0protected"),
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),
103+
array(
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Caster::EXCLUDE_NOT_IMPORTANT,
105+
array(
106+
'null' => null,
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'empty' => false,
108+
"\0~\0virtual" => 'virt',
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"\0+\0dynamic" => 'dyn',
110+
"\0Foo\0private" => 'priv',
111+
),
112+
array('public', "\0*\0protected"),
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),
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array(
115+
Caster::EXCLUDE_VIRTUAL | Caster::EXCLUDE_DYNAMIC,
116+
array(
117+
"\0~\0virtual" => 'virt',
118+
"\0+\0dynamic" => 'dyn',
119+
),
120+
),
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array(
122+
Caster::EXCLUDE_NOT_IMPORTANT | Caster::EXCLUDE_VERBOSE,
123+
$this->referenceArray,
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array('public', "\0*\0protected"),
125+
),
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array(
127+
Caster::EXCLUDE_NOT_IMPORTANT | Caster::EXCLUDE_EMPTY,
128+
array(
129+
'null' => null,
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'empty' => false,
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"\0~\0virtual" => 'virt',
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"\0+\0dynamic" => 'dyn',
133+
"\0*\0protected" => 'prot',
134+
"\0Foo\0private" => 'priv',
135+
),
136+
array('public', 'empty'),
137+
),
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array(
139+
Caster::EXCLUDE_VERBOSE | Caster::EXCLUDE_EMPTY | Caster::EXCLUDE_STRICT,
140+
array(
141+
'empty' => false,
142+
),
143+
array('public', 'empty'),
144+
),
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);
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}
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}

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