107 lines
3.1 KiB
PHP
107 lines
3.1 KiB
PHP
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<?php
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namespace Symfony\Component\DependencyInjection\Compiler;
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use Symfony\Component\DependencyInjection\Definition;
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use Symfony\Component\DependencyInjection\Reference;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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/*
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* This file is part of the Symfony framework.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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/**
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* Inline service definitions where this is possible.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class InlineServiceDefinitionsPass implements CompilerPassInterface
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{
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public function process(ContainerBuilder $container)
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{
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foreach ($container->getDefinitions() as $id => $definition) {
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$definition->setArguments(
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$this->inlineArguments($container, $definition->getArguments())
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);
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$definition->setMethodCalls(
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$this->inlineArguments($container, $definition->getMethodCalls())
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);
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}
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}
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protected function inlineArguments(ContainerBuilder $container, array $arguments)
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{
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foreach ($arguments as $k => $argument) {
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if (is_array($argument)) {
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$arguments[$k] = $this->inlineArguments($container, $argument);
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} else if ($argument instanceof Reference) {
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if (!$container->hasDefinition($id = (string) $argument)) {
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continue;
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}
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if ($this->isInlinableDefinition($container, $id, $definition = $container->getDefinition($id))) {
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$arguments[$k] = $definition;
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}
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}
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}
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return $arguments;
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}
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protected function isInlinableDefinition(ContainerBuilder $container, $id, Definition $definition)
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{
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if (!$definition->isShared()) {
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return true;
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}
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if ($definition->isPublic()) {
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return false;
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}
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$references = count(array_keys($container->getAliases(), $id, true));
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foreach ($container->getDefinitions() as $cDefinition)
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{
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if ($references > 1) {
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break;
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}
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if ($this->isReferencedByArgument($id, $cDefinition->getArguments())) {
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$references += 1;
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continue;
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}
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foreach ($cDefinition->getMethodCalls() as $call) {
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if ($this->isReferencedByArgument($id, $call[1])) {
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$references += 1;
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continue 2;
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}
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}
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}
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return $references <= 1;
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}
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protected function isReferencedByArgument($id, $argument)
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{
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if (is_array($argument)) {
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foreach ($argument as $arg) {
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if ($this->isReferencedByArgument($id, $arg)) {
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return true;
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}
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}
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} else if ($argument instanceof Reference) {
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if ($id === (string) $argument) {
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return true;
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}
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}
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return false;
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}
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}
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