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<?php |
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namespace Consolidation\AnnotatedCommand; |
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/** |
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* Prepare parameter list for execurion. Handle injection of any |
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* special values (e.g. $input and $output) into the parameter list. |
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*/ |
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class ParameterInjection implements ParameterInjector |
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{ |
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public function __construct() |
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{ |
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$this->register('Symfony\Component\Console\Input\InputInterface', $this); |
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$this->register('Symfony\Component\Console\Output\OutputInterface', $this); |
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} |
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public function register($interfaceName, ParameterInjector $injector) |
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{ |
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$this->injectors[$interfaceName] = $injector; |
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} |
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public function args($commandData) |
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{ |
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return array_merge( |
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$commandData->injectedInstances(), |
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$commandData->getArgsAndOptions() |
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); |
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} |
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public function injectIntoCommandData($commandData, $injectedClasses) |
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{ |
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foreach ($injectedClasses as $injectedClass) { |
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$injectedInstance = $this->getInstanceToInject($commandData, $injectedClass); |
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$commandData->injectInstance($injectedInstance); |
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} |
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} |
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protected function getInstanceToInject(CommandData $commandData, $interfaceName) |
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{ |
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if (!isset($this->injectors[$interfaceName])) { |
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return null; |
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} |
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return $this->injectors[$interfaceName]->get($commandData, $interfaceName); |
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} |
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public function get(CommandData $commandData, $interfaceName) |
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{ |
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switch ($interfaceName) { |
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case 'Symfony\Component\Console\Input\InputInterface': |
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return $commandData->input(); |
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case 'Symfony\Component\Console\Output\OutputInterface': |
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return $commandData->output(); |
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} |
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return null; |
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} |
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} |
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consolidation /
annotated-command
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: