252 lines
9.1 KiB
PHP
252 lines
9.1 KiB
PHP
<?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\DependencyInjection\Dumper;
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use Symfony\Component\DependencyInjection\Argument\ArgumentInterface;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Definition;
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use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException;
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use Symfony\Component\DependencyInjection\Parameter;
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use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
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use Symfony\Component\DependencyInjection\Reference;
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/**
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* GraphvizDumper dumps a service container as a graphviz file.
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*
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* You can convert the generated dot file with the dot utility (http://www.graphviz.org/):
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*
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* dot -Tpng container.dot > foo.png
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class GraphvizDumper extends Dumper
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{
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private $nodes;
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private $edges;
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// All values should be strings
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private $options = [
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'graph' => ['ratio' => 'compress'],
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'node' => ['fontsize' => '11', 'fontname' => 'Arial', 'shape' => 'record'],
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'edge' => ['fontsize' => '9', 'fontname' => 'Arial', 'color' => 'grey', 'arrowhead' => 'open', 'arrowsize' => '0.5'],
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'node.instance' => ['fillcolor' => '#9999ff', 'style' => 'filled'],
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'node.definition' => ['fillcolor' => '#eeeeee'],
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'node.missing' => ['fillcolor' => '#ff9999', 'style' => 'filled'],
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];
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/**
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* Dumps the service container as a graphviz graph.
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*
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* Available options:
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*
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* * graph: The default options for the whole graph
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* * node: The default options for nodes
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* * edge: The default options for edges
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* * node.instance: The default options for services that are defined directly by object instances
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* * node.definition: The default options for services that are defined via service definition instances
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* * node.missing: The default options for missing services
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*
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* @return string
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*/
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public function dump(array $options = [])
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{
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foreach (['graph', 'node', 'edge', 'node.instance', 'node.definition', 'node.missing'] as $key) {
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if (isset($options[$key])) {
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$this->options[$key] = array_merge($this->options[$key], $options[$key]);
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}
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}
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$this->nodes = $this->findNodes();
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$this->edges = [];
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foreach ($this->container->getDefinitions() as $id => $definition) {
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$this->edges[$id] = array_merge(
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$this->findEdges($id, $definition->getArguments(), true, ''),
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$this->findEdges($id, $definition->getProperties(), false, '')
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);
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foreach ($definition->getMethodCalls() as $call) {
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$this->edges[$id] = array_merge(
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$this->edges[$id],
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$this->findEdges($id, $call[1], false, $call[0].'()')
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);
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}
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}
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return $this->container->resolveEnvPlaceholders($this->startDot().$this->addNodes().$this->addEdges().$this->endDot(), '__ENV_%s__');
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}
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private function addNodes(): string
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{
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$code = '';
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foreach ($this->nodes as $id => $node) {
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$aliases = $this->getAliases($id);
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$code .= sprintf(" node_%s [label=\"%s\\n%s\\n\", shape=%s%s];\n", $this->dotize($id), $id.($aliases ? ' ('.implode(', ', $aliases).')' : ''), $node['class'], $this->options['node']['shape'], $this->addAttributes($node['attributes']));
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}
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return $code;
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}
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private function addEdges(): string
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{
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$code = '';
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foreach ($this->edges as $id => $edges) {
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foreach ($edges as $edge) {
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$code .= sprintf(" node_%s -> node_%s [label=\"%s\" style=\"%s\"%s];\n", $this->dotize($id), $this->dotize($edge['to']), $edge['name'], $edge['required'] ? 'filled' : 'dashed', $edge['lazy'] ? ' color="#9999ff"' : '');
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}
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}
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return $code;
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}
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/**
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* Finds all edges belonging to a specific service id.
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*/
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private function findEdges(string $id, array $arguments, bool $required, string $name, bool $lazy = false): array
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{
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$edges = [];
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foreach ($arguments as $argument) {
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if ($argument instanceof Parameter) {
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$argument = $this->container->hasParameter($argument) ? $this->container->getParameter($argument) : null;
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} elseif (\is_string($argument) && preg_match('/^%([^%]+)%$/', $argument, $match)) {
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$argument = $this->container->hasParameter($match[1]) ? $this->container->getParameter($match[1]) : null;
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}
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if ($argument instanceof Reference) {
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$lazyEdge = $lazy;
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if (!$this->container->has((string) $argument)) {
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$this->nodes[(string) $argument] = ['name' => $name, 'required' => $required, 'class' => '', 'attributes' => $this->options['node.missing']];
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} elseif ('service_container' !== (string) $argument) {
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$lazyEdge = $lazy || $this->container->getDefinition((string) $argument)->isLazy();
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}
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$edges[] = [['name' => $name, 'required' => $required, 'to' => $argument, 'lazy' => $lazyEdge]];
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} elseif ($argument instanceof ArgumentInterface) {
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$edges[] = $this->findEdges($id, $argument->getValues(), $required, $name, true);
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} elseif ($argument instanceof Definition) {
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$edges[] = $this->findEdges($id, $argument->getArguments(), $required, '');
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$edges[] = $this->findEdges($id, $argument->getProperties(), false, '');
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foreach ($argument->getMethodCalls() as $call) {
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$edges[] = $this->findEdges($id, $call[1], false, $call[0].'()');
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}
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} elseif (\is_array($argument)) {
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$edges[] = $this->findEdges($id, $argument, $required, $name, $lazy);
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}
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}
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return array_merge([], ...$edges);
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}
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private function findNodes(): array
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{
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$nodes = [];
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$container = $this->cloneContainer();
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foreach ($container->getDefinitions() as $id => $definition) {
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$class = $definition->getClass();
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if ('\\' === substr($class, 0, 1)) {
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$class = substr($class, 1);
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}
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try {
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$class = $this->container->getParameterBag()->resolveValue($class);
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} catch (ParameterNotFoundException $e) {
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}
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$nodes[$id] = ['class' => str_replace('\\', '\\\\', $class), 'attributes' => array_merge($this->options['node.definition'], ['style' => $definition->isShared() ? 'filled' : 'dotted'])];
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$container->setDefinition($id, new Definition('stdClass'));
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}
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foreach ($container->getServiceIds() as $id) {
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if (\array_key_exists($id, $container->getAliases())) {
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continue;
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}
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if (!$container->hasDefinition($id)) {
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$nodes[$id] = ['class' => str_replace('\\', '\\\\', \get_class($container->get($id))), 'attributes' => $this->options['node.instance']];
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}
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}
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return $nodes;
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}
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private function cloneContainer(): ContainerBuilder
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{
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$parameterBag = new ParameterBag($this->container->getParameterBag()->all());
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$container = new ContainerBuilder($parameterBag);
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$container->setDefinitions($this->container->getDefinitions());
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$container->setAliases($this->container->getAliases());
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$container->setResources($this->container->getResources());
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foreach ($this->container->getExtensions() as $extension) {
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$container->registerExtension($extension);
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}
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return $container;
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}
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private function startDot(): string
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{
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return sprintf("digraph sc {\n %s\n node [%s];\n edge [%s];\n\n",
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$this->addOptions($this->options['graph']),
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$this->addOptions($this->options['node']),
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$this->addOptions($this->options['edge'])
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);
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}
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private function endDot(): string
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{
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return "}\n";
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}
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private function addAttributes(array $attributes): string
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{
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$code = [];
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foreach ($attributes as $k => $v) {
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$code[] = sprintf('%s="%s"', $k, $v);
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}
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return $code ? ', '.implode(', ', $code) : '';
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}
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private function addOptions(array $options): string
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{
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$code = [];
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foreach ($options as $k => $v) {
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$code[] = sprintf('%s="%s"', $k, $v);
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}
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return implode(' ', $code);
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}
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private function dotize(string $id): string
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{
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return preg_replace('/\W/i', '_', $id);
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}
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private function getAliases(string $id): array
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{
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$aliases = [];
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foreach ($this->container->getAliases() as $alias => $origin) {
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if ($id == $origin) {
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$aliases[] = $alias;
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}
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}
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return $aliases;
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}
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}
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