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<?php |
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/* |
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* This file is part of the jade/jade package. |
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* |
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* (c) Slince <[email protected]> |
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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 Jade\HttpKernel; |
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use Psr\Http\Message\ServerRequestInterface; |
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class ArgumentResolver implements ArgumentResolverInterface |
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{ |
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protected $defaults = []; |
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public function __construct($defaults = []) |
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{ |
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$this->defaults = $defaults; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getArguments(ServerRequestInterface $request, callable $controller) |
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{ |
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$this->addDefault('request', $request); |
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$providedArguments = array_merge( |
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$this->defaults, |
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$request->getAttribute('_route')->getArguments() |
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); |
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$arguments = []; |
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$parameters = $this->createArgumentMetadata($controller); |
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foreach ($parameters as $parameter) { |
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$name = $parameter->getName(); |
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$arguments[$name] = isset($providedArguments[$name]) |
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? $providedArguments[$name] : ( |
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$parameter->isOptional() ? $parameter->getDefaultValue() : null |
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); |
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} |
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return $arguments; |
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} |
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/** |
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* 添加一个默认参数 |
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* |
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* @param string $name |
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* @param mixed $value |
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*/ |
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public function addDefault($name, $value) |
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{ |
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$this->defaults[$name] = $value; |
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} |
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/** |
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* 设置默认 |
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* |
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* @param array $defaults |
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*/ |
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public function setDefaults(array $defaults): void |
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{ |
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$this->defaults = $defaults; |
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} |
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/** |
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* 分析控制器的参数 |
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* |
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* @param callable $controller |
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* @return \ReflectionParameter[] |
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* @throws \ReflectionException |
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*/ |
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protected function createArgumentMetadata($controller) |
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{ |
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if (\is_array($controller)) { |
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$reflection = new \ReflectionMethod($controller[0], $controller[1]); |
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} elseif (\is_object($controller) && !$controller instanceof \Closure) { |
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$reflection = (new \ReflectionObject($controller))->getMethod('__invoke'); |
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} else { |
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$reflection = new \ReflectionFunction($controller); |
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} |
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return $reflection->getParameters(); |
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} |
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} |
jadephp /
jade
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