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<?php declare(strict_types=1); |
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namespace Limoncello\Core\Routing\Traits; |
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/** |
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* Copyright 2015-2020 [email protected] |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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use Closure; |
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use LogicException; |
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use Psr\Container\ContainerInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use function array_merge; |
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/** |
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* @package Limoncello\Core |
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* |
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* @method string getCallableToCacheMessage(); |
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*/ |
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trait HasMiddlewareTrait |
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{ |
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/** |
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* @var callable[] |
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*/ |
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private $middleware = []; |
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/** |
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* @param callable[] $middleware |
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* |
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* @return self |
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*/ |
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public function setMiddleware(array $middleware): self |
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{ |
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foreach ($middleware as $item) { |
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$isValid = $this->checkPublicStaticCallable($item, [ |
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ServerRequestInterface::class, |
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Closure::class, |
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ContainerInterface::class, |
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], ResponseInterface::class); |
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if ($isValid === false) { |
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throw new LogicException($this->getCallableToCacheMessage()); |
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} |
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} |
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$this->middleware = $middleware; |
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return $this; |
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} |
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/** |
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* @param callable[] $middleware |
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* |
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* @return self |
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*/ |
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public function addMiddleware(array $middleware): self |
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{ |
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return $this->setMiddleware(array_merge($this->middleware, $middleware)); |
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} |
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} |
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limoncello-php-dist /
core
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.