%PDF-
%PDF-
Mini Shell
Mini Shell
<?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;
use Nette;
/**
* Autowiring.
*/
class Autowiring
{
use Nette\SmartObject;
/** @var ContainerBuilder */
private $builder;
/** @var array[] type => services, used by getByType() */
private $highPriority = [];
/** @var array[] type => services, used by findByType() */
private $lowPriority = [];
/** @var string[] of classes excluded from autowiring */
private $excludedClasses = [];
public function __construct(ContainerBuilder $builder)
{
$this->builder = $builder;
}
/**
* Resolves service name by type.
* @param bool $throw exception if service not found?
* @throws MissingServiceException when not found
* @throws ServiceCreationException when multiple found
*/
public function getByType(string $type, bool $throw = false): ?string
{
$type = Helpers::normalizeClass($type);
$types = $this->highPriority;
if (empty($types[$type])) {
if ($throw) {
if (!class_exists($type) && !interface_exists($type)) {
throw new MissingServiceException(sprintf("Service of type '%s' not found. Check the class name because it cannot be found.", $type));
}
throw new MissingServiceException(sprintf('Service of type %s not found. Did you add it to configuration file?', $type));
}
return null;
} elseif (count($types[$type]) === 1) {
return $types[$type][0];
} else {
$list = $types[$type];
natsort($list);
$hint = count($list) === 2 && ($tmp = strpos($list[0], '.') xor strpos($list[1], '.'))
? '. If you want to overwrite service ' . $list[$tmp ? 0 : 1] . ', give it proper name.'
: '';
throw new ServiceCreationException(sprintf(
"Multiple services of type $type found: %s%s",
implode(', ', $list),
$hint
));
}
}
/**
* Gets the service names and definitions of the specified type.
* @return Definitions\Definition[] service name is key
*/
public function findByType(string $type): array
{
$type = Helpers::normalizeClass($type);
$definitions = $this->builder->getDefinitions();
$names = array_merge($this->highPriority[$type] ?? [], $this->lowPriority[$type] ?? []);
$res = [];
foreach ($names as $name) {
$res[$name] = $definitions[$name];
}
return $res;
}
/**
* @param string[] $types
*/
public function addExcludedClasses(array $types): void
{
foreach ($types as $type) {
if (class_exists($type) || interface_exists($type)) {
$type = Helpers::normalizeClass($type);
$this->excludedClasses += class_parents($type) + class_implements($type) + [$type => $type];
}
}
}
public function getClassList(): array
{
return [$this->lowPriority, $this->highPriority];
}
public function rebuild(): void
{
$this->lowPriority = $this->highPriority = $preferred = [];
foreach ($this->builder->getDefinitions() as $name => $def) {
if (!($type = $def->getType())) {
continue;
}
$autowired = $def->getAutowired();
if (is_array($autowired)) {
foreach ($autowired as $k => $autowiredType) {
if ($autowiredType === ContainerBuilder::ThisService) {
$autowired[$k] = $type;
} elseif (!is_a($type, $autowiredType, true)) {
throw new ServiceCreationException(sprintf(
"Incompatible class %s in autowiring definition of service '%s'.",
$autowiredType,
$name
));
}
}
}
foreach (class_parents($type) + class_implements($type) + [$type] as $parent) {
if (!$autowired || isset($this->excludedClasses[$parent])) {
continue;
} elseif (is_array($autowired)) {
$priority = false;
foreach ($autowired as $autowiredType) {
if (is_a($parent, $autowiredType, true)) {
if (empty($preferred[$parent]) && isset($this->highPriority[$parent])) {
$this->lowPriority[$parent] = array_merge($this->lowPriority[$parent] ?? [], $this->highPriority[$parent]);
$this->highPriority[$parent] = [];
}
$preferred[$parent] = $priority = true;
break;
}
}
} else {
$priority = empty($preferred[$parent]);
}
$list = $priority ? 'highPriority' : 'lowPriority';
$this->$list[$parent][] = $name;
}
}
}
}
Zerion Mini Shell 1.0