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<?php |
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namespace AmaTeam\TreeAccess\Type; |
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use AmaTeam\TreeAccess\API\Exception\MissingNodeException; |
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use AmaTeam\TreeAccess\API\Exception\RuntimeException; |
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use AmaTeam\TreeAccess\API\TypeAccessorInterface; |
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use AmaTeam\TreeAccess\Node; |
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class ArrayAccessor implements TypeAccessorInterface |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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public function read(&$item, $key) |
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{ |
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$this->assertExists($item, $key); |
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return new Node([$key], $item[$key]); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function write(&$item, $key, $value) |
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{ |
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$this->assertArray($item); |
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$item[$key] = $value; |
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return new Node([$key], $value); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function exists($item, $key) |
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{ |
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$this->assertArray($item); |
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return array_key_exists($key, $item); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function enumerate($item) |
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{ |
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$this->assertArray($item); |
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$target = []; |
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foreach ($item as $key => &$value) { |
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$target[$key] = new Node([$key], $value); |
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} |
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return $target; |
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} |
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/** |
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* @param array $item |
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* @param string $key |
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*/ |
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private function assertExists($item, $key) |
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{ |
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if (!$this->exists($item, $key)) { |
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$template = 'Key `%s` doesn\'t exist in passed array'; |
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$message = sprintf($template, $key); |
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throw new MissingNodeException([$key], $message); |
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} |
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} |
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/** |
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* @param array $item |
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*/ |
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private function assertArray($item) |
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{ |
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if (!is_array($item)) { |
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throw new RuntimeException('Non-array item passed'); |
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} |
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} |
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} |
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ama-team /
php-tree-access
