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psalm/tests/Config/Plugin/Hook/MagicFunctionProvider.php

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<?php
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namespace Psalm\Test\Config\Plugin\Hook;
use Psalm\Plugin\EventHandler\Event\FunctionExistenceProviderEvent;
use Psalm\Plugin\EventHandler\Event\FunctionParamsProviderEvent;
use Psalm\Plugin\EventHandler\Event\FunctionReturnTypeProviderEvent;
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use Psalm\Plugin\EventHandler\FunctionExistenceProviderInterface;
use Psalm\Plugin\EventHandler\FunctionParamsProviderInterface;
use Psalm\Plugin\EventHandler\FunctionReturnTypeProviderInterface;
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use Psalm\Storage\FunctionLikeParameter;
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use Psalm\Type;
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use Psalm\Type\Union;
class MagicFunctionProvider implements
FunctionExistenceProviderInterface,
FunctionParamsProviderInterface,
FunctionReturnTypeProviderInterface
{
/**
* @return array<lowercase-string>
*/
public static function getFunctionIds(): array
{
return ['magicfunction'];
}
public static function doesFunctionExist(FunctionExistenceProviderEvent $event): ?bool
{
$function_id = $event->getFunctionId();
return $function_id === 'magicfunction';
}
/**
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* @return ?array<int, FunctionLikeParameter>
*/
public static function getFunctionParams(FunctionParamsProviderEvent $event): ?array
{
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return [new FunctionLikeParameter('first', false, Type::getString(), Type::getString())];
}
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public static function getFunctionReturnType(FunctionReturnTypeProviderEvent $event): ?Union
{
return Type::getString();
}
}