389 lines
10 KiB
PHP
389 lines
10 KiB
PHP
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<?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\Routing;
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use Symfony\Component\Config\Resource\ResourceInterface;
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use Symfony\Component\Routing\Exception\InvalidArgumentException;
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use Symfony\Component\Routing\Exception\RouteCircularReferenceException;
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/**
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* A RouteCollection represents a set of Route instances.
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*
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* When adding a route at the end of the collection, an existing route
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* with the same name is removed first. So there can only be one route
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* with a given name.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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* @author Tobias Schultze <http://tobion.de>
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*
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* @implements \IteratorAggregate<string, Route>
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*/
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class RouteCollection implements \IteratorAggregate, \Countable
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{
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/**
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* @var array<string, Route>
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*/
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private array $routes = [];
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/**
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* @var array<string, Alias>
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*/
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private array $aliases = [];
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/**
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* @var array<string, ResourceInterface>
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*/
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private array $resources = [];
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/**
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* @var array<string, int>
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*/
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private array $priorities = [];
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public function __clone()
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{
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foreach ($this->routes as $name => $route) {
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$this->routes[$name] = clone $route;
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}
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foreach ($this->aliases as $name => $alias) {
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$this->aliases[$name] = clone $alias;
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}
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}
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/**
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* Gets the current RouteCollection as an Iterator that includes all routes.
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*
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* It implements \IteratorAggregate.
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*
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* @see all()
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*
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* @return \ArrayIterator<string, Route>
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*/
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public function getIterator(): \ArrayIterator
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{
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return new \ArrayIterator($this->all());
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}
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/**
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* Gets the number of Routes in this collection.
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*/
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public function count(): int
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{
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return \count($this->routes);
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}
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public function add(string $name, Route $route, int $priority = 0): void
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{
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unset($this->routes[$name], $this->priorities[$name], $this->aliases[$name]);
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$this->routes[$name] = $route;
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if ($priority) {
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$this->priorities[$name] = $priority;
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}
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}
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/**
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* Returns all routes in this collection.
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*
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* @return array<string, Route>
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*/
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public function all(): array
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{
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if ($this->priorities) {
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$priorities = $this->priorities;
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$keysOrder = array_flip(array_keys($this->routes));
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uksort($this->routes, static fn ($n1, $n2) => (($priorities[$n2] ?? 0) <=> ($priorities[$n1] ?? 0)) ?: ($keysOrder[$n1] <=> $keysOrder[$n2]));
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}
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return $this->routes;
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}
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/**
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* Gets a route by name.
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*/
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public function get(string $name): ?Route
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{
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$visited = [];
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while (null !== $alias = $this->aliases[$name] ?? null) {
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if (false !== $searchKey = array_search($name, $visited)) {
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$visited[] = $name;
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throw new RouteCircularReferenceException($name, \array_slice($visited, $searchKey));
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}
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if ($alias->isDeprecated()) {
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$deprecation = $alias->getDeprecation($name);
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trigger_deprecation($deprecation['package'], $deprecation['version'], $deprecation['message']);
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}
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$visited[] = $name;
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$name = $alias->getId();
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}
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return $this->routes[$name] ?? null;
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}
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/**
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* Removes a route or an array of routes by name from the collection.
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*
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* @param string|string[] $name The route name or an array of route names
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*/
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public function remove(string|array $name): void
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{
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$routes = [];
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foreach ((array) $name as $n) {
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if (isset($this->routes[$n])) {
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$routes[] = $n;
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}
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unset($this->routes[$n], $this->priorities[$n], $this->aliases[$n]);
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}
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if (!$routes) {
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return;
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}
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foreach ($this->aliases as $k => $alias) {
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if (\in_array($alias->getId(), $routes, true)) {
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unset($this->aliases[$k]);
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}
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}
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}
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/**
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* Adds a route collection at the end of the current set by appending all
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* routes of the added collection.
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*/
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public function addCollection(self $collection): void
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{
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// we need to remove all routes with the same names first because just replacing them
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// would not place the new route at the end of the merged array
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foreach ($collection->all() as $name => $route) {
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unset($this->routes[$name], $this->priorities[$name], $this->aliases[$name]);
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$this->routes[$name] = $route;
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if (isset($collection->priorities[$name])) {
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$this->priorities[$name] = $collection->priorities[$name];
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}
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}
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foreach ($collection->getAliases() as $name => $alias) {
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unset($this->routes[$name], $this->priorities[$name], $this->aliases[$name]);
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$this->aliases[$name] = $alias;
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}
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foreach ($collection->getResources() as $resource) {
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$this->addResource($resource);
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}
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}
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/**
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* Adds a prefix to the path of all child routes.
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*/
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public function addPrefix(string $prefix, array $defaults = [], array $requirements = []): void
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{
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$prefix = trim(trim($prefix), '/');
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if ('' === $prefix) {
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return;
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}
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foreach ($this->routes as $route) {
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$route->setPath('/'.$prefix.$route->getPath());
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$route->addDefaults($defaults);
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$route->addRequirements($requirements);
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}
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}
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/**
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* Adds a prefix to the name of all the routes within in the collection.
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*/
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public function addNamePrefix(string $prefix): void
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{
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$prefixedRoutes = [];
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$prefixedPriorities = [];
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$prefixedAliases = [];
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foreach ($this->routes as $name => $route) {
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$prefixedRoutes[$prefix.$name] = $route;
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if (null !== $canonicalName = $route->getDefault('_canonical_route')) {
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$route->setDefault('_canonical_route', $prefix.$canonicalName);
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}
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if (isset($this->priorities[$name])) {
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$prefixedPriorities[$prefix.$name] = $this->priorities[$name];
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}
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}
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foreach ($this->aliases as $name => $alias) {
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$prefixedAliases[$prefix.$name] = $alias->withId($prefix.$alias->getId());
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}
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$this->routes = $prefixedRoutes;
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$this->priorities = $prefixedPriorities;
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$this->aliases = $prefixedAliases;
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}
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/**
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* Sets the host pattern on all routes.
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*/
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public function setHost(?string $pattern, array $defaults = [], array $requirements = []): void
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{
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foreach ($this->routes as $route) {
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$route->setHost($pattern);
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$route->addDefaults($defaults);
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$route->addRequirements($requirements);
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}
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}
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/**
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* Sets a condition on all routes.
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*
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* Existing conditions will be overridden.
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*/
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public function setCondition(?string $condition): void
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{
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foreach ($this->routes as $route) {
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$route->setCondition($condition);
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}
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}
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/**
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* Adds defaults to all routes.
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*
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* An existing default value under the same name in a route will be overridden.
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*/
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public function addDefaults(array $defaults): void
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{
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if ($defaults) {
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foreach ($this->routes as $route) {
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$route->addDefaults($defaults);
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}
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}
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}
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/**
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* Adds requirements to all routes.
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*
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* An existing requirement under the same name in a route will be overridden.
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*/
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public function addRequirements(array $requirements): void
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{
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if ($requirements) {
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foreach ($this->routes as $route) {
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$route->addRequirements($requirements);
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}
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}
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}
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/**
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* Adds options to all routes.
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*
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* An existing option value under the same name in a route will be overridden.
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*/
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public function addOptions(array $options): void
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{
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if ($options) {
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foreach ($this->routes as $route) {
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$route->addOptions($options);
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}
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}
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}
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/**
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* Sets the schemes (e.g. 'https') all child routes are restricted to.
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*
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* @param string|string[] $schemes The scheme or an array of schemes
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*/
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public function setSchemes(string|array $schemes): void
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{
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foreach ($this->routes as $route) {
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$route->setSchemes($schemes);
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}
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}
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/**
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* Sets the HTTP methods (e.g. 'POST') all child routes are restricted to.
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*
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* @param string|string[] $methods The method or an array of methods
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*/
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public function setMethods(string|array $methods): void
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{
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foreach ($this->routes as $route) {
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$route->setMethods($methods);
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}
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}
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/**
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* Returns an array of resources loaded to build this collection.
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*
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* @return ResourceInterface[]
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*/
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public function getResources(): array
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{
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return array_values($this->resources);
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}
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/**
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* Adds a resource for this collection. If the resource already exists
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* it is not added.
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*/
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public function addResource(ResourceInterface $resource): void
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{
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$key = (string) $resource;
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if (!isset($this->resources[$key])) {
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$this->resources[$key] = $resource;
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}
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}
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/**
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* Sets an alias for an existing route.
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*
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* @param string $name The alias to create
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* @param string $alias The route to alias
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*
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* @throws InvalidArgumentException if the alias is for itself
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*/
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public function addAlias(string $name, string $alias): Alias
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{
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if ($name === $alias) {
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throw new InvalidArgumentException(\sprintf('Route alias "%s" can not reference itself.', $name));
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}
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unset($this->routes[$name], $this->priorities[$name]);
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return $this->aliases[$name] = new Alias($alias);
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}
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/**
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* @return array<string, Alias>
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*/
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public function getAliases(): array
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{
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return $this->aliases;
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}
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public function getAlias(string $name): ?Alias
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{
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return $this->aliases[$name] ?? null;
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}
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public function getPriority(string $name): ?int
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{
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return $this->priorities[$name] ?? null;
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}
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}
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