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<?php |
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namespace Vine; |
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use Vine\Commands\Shake; |
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use Vine\Commands\Flatten; |
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use Vine\Commands\Inflate; |
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use Vine\Commands\Remove; |
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use Vine\Commands\Slice; |
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use Vine\Queries\Find; |
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class NodeCollection implements \ArrayAccess, \Countable, \IteratorAggregate |
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{ |
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/** |
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* @var Node[] |
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*/ |
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protected $nodes; |
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public function __construct(Node ...$nodeCollection) |
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{ |
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$this->nodes = $nodeCollection; |
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} |
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public function all() |
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{ |
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return $this->nodes; |
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} |
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public function first() |
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{ |
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if($this->isEmpty()) return null; |
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return reset($this->nodes); |
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} |
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public function isEmpty(): bool |
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{ |
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return empty($this->nodes); |
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} |
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/** |
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* Add one / many nodes to this collection |
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* |
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* @param Node[] ...$nodes |
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* @return $this |
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*/ |
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public function add(Node ...$nodes) |
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{ |
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$this->nodes = array_merge($this->nodes, $nodes); |
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return $this; |
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} |
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/** |
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* Merge a collection into current one. |
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* |
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* @param NodeCollection $nodeCollection |
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* @return $this |
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*/ |
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public function merge(self $nodeCollection) |
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{ |
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$this->nodes = array_merge($this->nodes, $nodeCollection->all()); |
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return $this; |
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} |
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/** |
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* Remove the child node |
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* |
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* Please note that all descendants of this |
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* child node will be removed as well. |
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* |
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* @param Node $child |
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* @return $this |
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*/ |
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public function remove(Node $child) |
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{ |
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return (new Remove())($this,$child); |
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} |
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/** |
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* Return flattened list of all nodes in this collection |
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* |
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* @return NodeCollection |
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*/ |
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public function flatten() |
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{ |
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return (new Flatten())($this); |
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} |
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/** |
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* Inflate a flattened collection back to its original structure |
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* |
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* @return NodeCollection |
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*/ |
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public function inflate() |
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{ |
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return (new Inflate())($this); |
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} |
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/** |
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* Slice one or more nodes out of the collection |
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* |
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* @param Node[] ...$nodes |
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* @return mixed |
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*/ |
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public function slice(Node ...$nodes) |
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{ |
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return (new Slice())($this, ...$nodes); |
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} |
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/** |
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* Find many nodes by attribute value |
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* |
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* @param $key |
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* @param array $values |
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* @return NodeCollection |
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*/ |
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public function findMany($key, array $values): self |
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{ |
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return (new Find)($this,$key,$values); |
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} |
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/** |
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* Find specific node by attribute value |
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* |
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* @param $key |
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* @param $value |
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* @return Node|null |
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*/ |
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public function find($key, $value) |
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{ |
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return (new Find)($this,$key,[$value])->first(); |
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} |
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public function offsetExists($offset) |
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{ |
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if(!is_string($offset) && !is_int($offset)) return false; |
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return array_key_exists($offset, $this->nodes); |
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} |
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public function offsetGet($offset) |
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{ |
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return $this->nodes[$offset]; |
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} |
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public function offsetSet($offset, $value) |
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{ |
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if(is_null($offset)) $this->nodes[] = $value; |
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else $this->nodes[$offset] = $value; |
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} |
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public function offsetUnset($offset) |
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{ |
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unset($this->nodes[$offset]); |
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} |
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public function count() |
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{ |
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return count($this->nodes); |
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} |
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public function getIterator() |
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{ |
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return new \ArrayIterator($this->nodes); |
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} |
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} |
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thinktomorrow /
vine
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..