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<?php |
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declare(strict_types=1); |
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namespace AlexMasterov\PsyshBundle\DependencyInjection\Compiler; |
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use Symfony\Component\DependencyInjection\{ |
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Compiler\CompilerPassInterface, |
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ContainerBuilder, |
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Definition, |
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Reference |
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}; |
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class SetVariablePass implements CompilerPassInterface |
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{ |
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/** @const */ |
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const METHOD = 'setScopeVariables'; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ContainerBuilder $container) |
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{ |
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if (!$container->has('psysh.shell')) { |
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1 |
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return; |
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} |
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$variables = []; |
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foreach ($container->findTaggedServiceIds('psysh.variable', true) as $id => [$attributes]) { |
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$variable = $attributes['var'] ?? (\class_exists($id) ? $this->classify($id) : $id); |
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$variables[$variable] = new Reference($id); |
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} |
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if (empty($variables)) { |
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return; |
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} |
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$definition = $container->getDefinition('psysh.shell'); |
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if ($definition->hasMethodCall(self::METHOD)) { |
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$this->mergeMethodCall($definition, $variables); |
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return; |
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} |
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$definition->addMethodCall(self::METHOD, [$variables]); |
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} |
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// NameSpace\SomeName -> nameSpaceSomeName |
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private function classify(string $spec): string |
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{ |
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$parts = \explode('\\', $spec); |
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if (!empty($parts[1])) { |
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$parts[0] = \strtolower($parts[0]); |
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} |
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return \implode($parts); |
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} |
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private function mergeMethodCall(Definition $definition, array $variables): void |
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{ |
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$calls = $definition->getMethodCalls(); |
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foreach ($calls as $call => [$method, $arguments]) { |
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if (self::METHOD === $method) { |
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foreach ($arguments as $argument) { |
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$variables += $argument; |
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} |
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unset($calls[$call]); |
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} |
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} |
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$mergedCalls += [ |
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[self::METHOD, [$variables]], |
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]; |
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$definition->setMethodCalls($mergedCalls); |
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} |
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} |
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AlexMasterov /
psysh-bundle
This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.