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AccessorDefinition.php
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AccessorDefinition.php
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<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Nette\DI\Definitions;
use Nette;
use Nette\DI\ServiceCreationException;
use Nette\Utils\Reflection;
/**
* Accessor definition.
*/
final class AccessorDefinition extends Definition
{
private const METHOD_GET = 'get';
/** @var Reference|null */
private $reference;
/** @return static */
public function setImplement(string $type)
{
if (!interface_exists($type)) {
throw new Nette\InvalidArgumentException($this->getDescriptiveName() . "\nInterface '$type' not found.");
}
$rc = new \ReflectionClass($type);
$method = $rc->getMethods()[0] ?? null;
if (
!$method
|| $method->isStatic()
|| $method->getName() !== self::METHOD_GET
|| count($rc->getMethods()) > 1
) {
throw new Nette\InvalidArgumentException($this->getDescriptiveName() . "\nInterface $type must have just one non-static method get().");
} elseif ($method->getNumberOfParameters()) {
throw new Nette\InvalidArgumentException($this->getDescriptiveName() . "\nMethod $type::get() must have no parameters.");
}
return parent::setType($type);
}
public function getImplement(): ?string
{
return $this->getType();
}
/**
* @param string|Reference $reference
* @return static
*/
public function setReference($reference)
{
if ($reference instanceof Reference) {
$this->reference = $reference;
} else {
$this->reference = substr($reference, 0, 1) === '@'
? new Reference(substr($reference, 1))
: Reference::fromType($reference);
}
return $this;
}
public function getReference(): ?Reference
{
return $this->reference;
}
public function resolveType(Nette\DI\Resolver $resolver): void
{
}
public function complete(Nette\DI\Resolver $resolver): void
{
if (!$this->reference) {
$interface = $this->getType();
$method = new \ReflectionMethod($interface, self::METHOD_GET);
$returnType = Nette\DI\Helpers::getReturnType($method);
if (!$returnType) {
throw new ServiceCreationException("Method $interface::get() has no return type or annotation @return.");
} elseif (!class_exists($returnType) && !interface_exists($returnType)) {
throw new ServiceCreationException("Class '$returnType' not found.\nCheck the return type or annotation @return of the $interface::get() method.");
}
$this->setReference($returnType);
}
$this->reference = $resolver->normalizeReference($this->reference);
}
public function generateMethod(Nette\PhpGenerator\Method $method, Nette\DI\PhpGenerator $generator): void
{
$class = (new Nette\PhpGenerator\ClassType)
->addImplement($this->getType());
$class->addProperty('container')
->setPrivate();
$class->addMethod('__construct')
->addBody('$this->container = $container;')
->addParameter('container')
->setType($generator->getClassName());
$rm = new \ReflectionMethod($this->getType(), self::METHOD_GET);
$class->addMethod(self::METHOD_GET)
->setBody('return $this->container->getService(?);', [$this->reference->getValue()])
->setReturnType(Reflection::getReturnType($rm));
$method->setBody('return new class ($this) ' . $class . ';');
}
}