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vendor/symfony/var-dumper/Caster/ArgsStub.php

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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;
+
+/**
+ * Represents a list of function arguments.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ArgsStub extends EnumStub
+{
+    private static array $parameters = [];
+
+    public function __construct(array $args, string $function, ?string $class)
+    {
+        [$variadic, $params] = self::getParameters($function, $class);
+
+        $values = [];
+        foreach ($args as $k => $v) {
+            $values[$k] = !\is_scalar($v) && !$v instanceof Stub ? new CutStub($v) : $v;
+        }
+        if (null === $params) {
+            parent::__construct($values, false);
+
+            return;
+        }
+        if (\count($values) < \count($params)) {
+            $params = \array_slice($params, 0, \count($values));
+        } elseif (\count($values) > \count($params)) {
+            $values[] = new EnumStub(array_splice($values, \count($params)), false);
+            $params[] = $variadic;
+        }
+        if (['...'] === $params) {
+            $this->dumpKeys = false;
+            $this->value = $values[0]->value;
+        } else {
+            $this->value = array_combine($params, $values);
+        }
+    }
+
+    private static function getParameters(string $function, ?string $class): array
+    {
+        if (isset(self::$parameters[$k = $class.'::'.$function])) {
+            return self::$parameters[$k];
+        }
+
+        try {
+            $r = null !== $class ? new \ReflectionMethod($class, $function) : new \ReflectionFunction($function);
+        } catch (\ReflectionException) {
+            return [null, null];
+        }
+
+        $variadic = '...';
+        $params = [];
+        foreach ($r->getParameters() as $v) {
+            $k = '$'.$v->name;
+            if ($v->isPassedByReference()) {
+                $k = '&'.$k;
+            }
+            if ($v->isVariadic()) {
+                $variadic .= $k;
+            } else {
+                $params[] = $k;
+            }
+        }
+
+        return self::$parameters[$k] = [$variadic, $params];
+    }
+}