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vendor/symfony/dependency-injection/Compiler/ResolveBindingsPass.php

@@ -0,0 +1,171 @@
+<?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\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\Argument\BoundArgument;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+use Symfony\Component\DependencyInjection\LazyProxy\ProxyHelper;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\TypedReference;
+
+/**
+ * @author Guilhem Niot <guilhem.niot@gmail.com>
+ */
+class ResolveBindingsPass extends AbstractRecursivePass
+{
+    private $usedBindings = array();
+    private $unusedBindings = array();
+    private $errorMessages = array();
+
+    /**
+     * {@inheritdoc}
+     */
+    public function process(ContainerBuilder $container)
+    {
+        try {
+            parent::process($container);
+
+            foreach ($this->unusedBindings as list($key, $serviceId)) {
+                $message = sprintf('Unused binding "%s" in service "%s".', $key, $serviceId);
+                if ($this->errorMessages) {
+                    $message .= sprintf("\nCould be related to%s:", 1 < \count($this->errorMessages) ? ' one of' : '');
+                }
+                foreach ($this->errorMessages as $m) {
+                    $message .= "\n - ".$m;
+                }
+                throw new InvalidArgumentException($message);
+            }
+        } finally {
+            $this->usedBindings = array();
+            $this->unusedBindings = array();
+            $this->errorMessages = array();
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function processValue($value, $isRoot = false)
+    {
+        if ($value instanceof TypedReference && $value->getType() === $this->container->normalizeId($value)) {
+            // Already checked
+            $bindings = $this->container->getDefinition($this->currentId)->getBindings();
+
+            if (isset($bindings[$value->getType()])) {
+                return $this->getBindingValue($bindings[$value->getType()]);
+            }
+
+            return parent::processValue($value, $isRoot);
+        }
+
+        if (!$value instanceof Definition || !$bindings = $value->getBindings()) {
+            return parent::processValue($value, $isRoot);
+        }
+
+        foreach ($bindings as $key => $binding) {
+            list($bindingValue, $bindingId, $used) = $binding->getValues();
+            if ($used) {
+                $this->usedBindings[$bindingId] = true;
+                unset($this->unusedBindings[$bindingId]);
+            } elseif (!isset($this->usedBindings[$bindingId])) {
+                $this->unusedBindings[$bindingId] = array($key, $this->currentId);
+            }
+
+            if (isset($key[0]) && '$' === $key[0]) {
+                continue;
+            }
+
+            if (null !== $bindingValue && !$bindingValue instanceof Reference && !$bindingValue instanceof Definition) {
+                throw new InvalidArgumentException(sprintf('Invalid value for binding key "%s" for service "%s": expected null, an instance of %s or an instance of %s, %s given.', $key, $this->currentId, Reference::class, Definition::class, \gettype($bindingValue)));
+            }
+        }
+
+        if ($value->isAbstract()) {
+            return parent::processValue($value, $isRoot);
+        }
+
+        $calls = $value->getMethodCalls();
+
+        try {
+            if ($constructor = $this->getConstructor($value, false)) {
+                $calls[] = array($constructor, $value->getArguments());
+            }
+        } catch (RuntimeException $e) {
+            $this->errorMessages[] = $e->getMessage();
+            $this->container->getDefinition($this->currentId)->addError($e->getMessage());
+
+            return parent::processValue($value, $isRoot);
+        }
+
+        foreach ($calls as $i => $call) {
+            list($method, $arguments) = $call;
+
+            if ($method instanceof \ReflectionFunctionAbstract) {
+                $reflectionMethod = $method;
+            } else {
+                $reflectionMethod = $this->getReflectionMethod($value, $method);
+            }
+
+            foreach ($reflectionMethod->getParameters() as $key => $parameter) {
+                if (array_key_exists($key, $arguments) && '' !== $arguments[$key]) {
+                    continue;
+                }
+
+                if (array_key_exists('$'.$parameter->name, $bindings)) {
+                    $arguments[$key] = $this->getBindingValue($bindings['$'.$parameter->name]);
+
+                    continue;
+                }
+
+                $typeHint = ProxyHelper::getTypeHint($reflectionMethod, $parameter, true);
+
+                if (!isset($bindings[$typeHint])) {
+                    continue;
+                }
+
+                $arguments[$key] = $this->getBindingValue($bindings[$typeHint]);
+            }
+
+            if ($arguments !== $call[1]) {
+                ksort($arguments);
+                $calls[$i][1] = $arguments;
+            }
+        }
+
+        if ($constructor) {
+            list(, $arguments) = array_pop($calls);
+
+            if ($arguments !== $value->getArguments()) {
+                $value->setArguments($arguments);
+            }
+        }
+
+        if ($calls !== $value->getMethodCalls()) {
+            $value->setMethodCalls($calls);
+        }
+
+        return parent::processValue($value, $isRoot);
+    }
+
+    private function getBindingValue(BoundArgument $binding)
+    {
+        list($bindingValue, $bindingId) = $binding->getValues();
+
+        $this->usedBindings[$bindingId] = true;
+        unset($this->unusedBindings[$bindingId]);
+
+        return $bindingValue;
+    }
+}