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<?php |
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declare(strict_types=1); |
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/** |
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* Caridea |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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* use this file except in compliance with the License. You may obtain a copy of |
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* the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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* License for the specific language governing permissions and limitations under |
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* the License. |
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* |
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* @copyright 2015-2018 LibreWorks contributors |
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* @license Apache-2.0 |
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*/ |
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namespace Caridea\Container; |
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/** |
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* Abstract dependency injection container. |
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* |
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* @copyright 2015-2018 LibreWorks contributors |
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* @license Apache-2.0 |
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*/ |
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abstract class AbstractContainer implements Container |
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{ |
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/** |
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* @var Container The parent container |
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*/ |
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protected $parent; |
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/** |
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* @var string[] with string keys |
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*/ |
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protected $types = []; |
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/** |
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* @var string[] the list of PHP native types |
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*/ |
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protected static $primitives = ['array', 'bool', 'float', 'int', 'resource', 'string']; |
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/** |
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* Creates a new AbstractContainer. |
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* |
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* @param string[] $types with string keys |
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* @param \Caridea\Container\Container $parent The parent container |
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*/ |
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protected function __construct(array $types, Container $parent = null) |
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{ |
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$this->types = $types; |
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$this->parent = $parent; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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1 |
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public function contains(string $name): bool |
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{ |
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return $this->has($name); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function containsType(string $type): bool |
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{ |
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$isObject = !in_array($type, self::$primitives, true); |
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foreach ($this->types as $ctype) { |
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if ($type === $ctype || ($isObject && is_a($ctype, $type, true))) { |
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return true; |
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} |
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} |
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return $this->parent ? $this->parent->containsType($type) : false; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function get($id) |
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{ |
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$entry = isset($this->types[$id]) ? $this->doGet($id) : |
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($this->parent ? $this->parent->get($id) : null); |
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if ($entry === null) { |
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throw new Exception\Missing("No container entry found for key: $id"); |
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} |
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return $entry; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getByType(string $type): array |
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{ |
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$components = $this->parent ? $this->parent->getByType($type) : []; |
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$isObject = !in_array($type, self::$primitives, true); |
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foreach ($this->types as $name => $ctype) { |
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if ($type === $ctype || ($isObject && is_a($ctype, $type, true))) { |
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$components[$name] = $this->doGet($name); |
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} |
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} |
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return $components; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getFirst(string $type) |
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{ |
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$isObject = !in_array($type, self::$primitives, true); |
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foreach ($this->types as $name => $ctype) { |
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if ($type === $ctype || ($isObject && is_a($ctype, $type, true))) { |
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return $this->doGet($name); |
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} |
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} |
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return $this->parent ? $this->parent->getFirst($type) : null; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function has($name): bool |
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{ |
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return isset($this->types[$name]) || |
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($this->parent ? $this->parent->has($name) : false); |
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} |
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/** |
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* Retrieves the value |
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* |
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* @param string $name The value name |
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*/ |
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abstract protected function doGet(string $name); |
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/** |
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* {@inheritDoc} |
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*/ |
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1 |
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public function getNames(): array |
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{ |
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return array_keys($this->types); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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1 |
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public function getParent(): ?Container |
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{ |
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1 |
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return $this->parent; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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1 |
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public function getType(string $name): ?string |
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{ |
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return isset($this->types[$name]) ? $this->types[$name] : |
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($this->parent ? $this->parent->getType($name) : null); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function named(string $name, string $type) |
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{ |
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if (isset($this->types[$name])) { |
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$ctype = $this->types[$name]; |
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$isObject = !in_array($type, self::$primitives, true); |
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if ($type !== $ctype && (!$isObject || !is_a($ctype, $type, true))) { |
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throw new \UnexpectedValueException("A $type was requested, but a $ctype was found"); |
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} |
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return $this->doGet($name); |
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} elseif ($this->parent !== null) { |
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return $this->parent->named($name, $type); |
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} |
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throw new \UnexpectedValueException("A $type was requested, but null was found"); |
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} |
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} |
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libreworks /
caridea-container
