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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony package.
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5 *
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6 * (c) Fabien Potencier <fabien@symfony.com>
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Component\VarDumper\Caster;
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13
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14 use Symfony\Component\VarDumper\Cloner\Stub;
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15
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16 /**
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17 * Represents a list of function arguments.
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18 *
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19 * @author Nicolas Grekas <p@tchwork.com>
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20 */
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21 class ArgsStub extends EnumStub
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22 {
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23 private static $parameters = [];
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24
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25 public function __construct(array $args, $function, $class)
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26 {
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27 list($variadic, $params) = self::getParameters($function, $class);
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28
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29 $values = [];
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30 foreach ($args as $k => $v) {
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31 $values[$k] = !is_scalar($v) && !$v instanceof Stub ? new CutStub($v) : $v;
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32 }
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33 if (null === $params) {
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34 parent::__construct($values, false);
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35
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36 return;
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37 }
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38 if (\count($values) < \count($params)) {
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39 $params = \array_slice($params, 0, \count($values));
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40 } elseif (\count($values) > \count($params)) {
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41 $values[] = new EnumStub(array_splice($values, \count($params)), false);
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42 $params[] = $variadic;
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43 }
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44 if (['...'] === $params) {
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45 $this->dumpKeys = false;
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46 $this->value = $values[0]->value;
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47 } else {
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48 $this->value = array_combine($params, $values);
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49 }
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50 }
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51
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52 private static function getParameters($function, $class)
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53 {
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54 if (isset(self::$parameters[$k = $class.'::'.$function])) {
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55 return self::$parameters[$k];
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56 }
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57
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58 try {
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59 $r = null !== $class ? new \ReflectionMethod($class, $function) : new \ReflectionFunction($function);
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60 } catch (\ReflectionException $e) {
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61 return [null, null];
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62 }
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63
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64 $variadic = '...';
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65 $params = [];
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66 foreach ($r->getParameters() as $v) {
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67 $k = '$'.$v->name;
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68 if ($v->isPassedByReference()) {
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69 $k = '&'.$k;
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70 }
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71 if (method_exists($v, 'isVariadic') && $v->isVariadic()) {
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72 $variadic .= $k;
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73 } else {
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74 $params[] = $k;
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75 }
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76 }
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77
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78 return self::$parameters[$k] = [$variadic, $params];
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79 }
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80 }
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