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<?php |
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declare(strict_types=1); |
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namespace GraphQL\Language\AST; |
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use ArrayAccess; |
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use Countable; |
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use GraphQL\Utils\AST; |
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use InvalidArgumentException; |
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use IteratorAggregate; |
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use Traversable; |
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use function array_merge; |
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use function array_splice; |
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use function count; |
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use function is_array; |
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/** |
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* @template T of Node |
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* @phpstan-implements ArrayAccess<int|string, T> |
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* @phpstan-implements IteratorAggregate<T> |
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*/ |
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class NodeList implements ArrayAccess, IteratorAggregate, Countable |
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{ |
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/** |
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* @var Node[] |
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* @phpstan-var array<T> |
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*/ |
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private $nodes; |
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/** |
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* @param Node[] $nodes |
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* |
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* @phpstan-param array<T> $nodes |
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* @phpstan-return self<T> |
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*/ |
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public static function create(array $nodes) : self |
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{ |
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return new static($nodes); |
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} |
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/** |
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* @param Node[] $nodes |
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* |
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* @phpstan-param array<T> $nodes |
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*/ |
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1004 |
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public function __construct(array $nodes) |
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{ |
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$this->nodes = $nodes; |
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} |
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/** |
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* @param int|string $offset |
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*/ |
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public function offsetExists($offset) : bool |
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{ |
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return isset($this->nodes[$offset]); |
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} |
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/** |
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* TODO enable strict typing by changing how the Visitor deals with NodeList. |
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* Ideally, this function should always return a Node instance. |
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* However, the Visitor currently allows mutation of the NodeList |
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* and puts arbitrary values in the NodeList, such as strings. |
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* We will have to switch to using an array or a less strict |
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* type instead so we can enable strict typing in this class. |
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* |
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* @param int|string $offset |
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* |
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* @phpstan-return T |
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*/ |
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public function offsetGet($offset)// : Node |
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{ |
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$item = $this->nodes[$offset]; |
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if (is_array($item) && isset($item['kind'])) { |
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/** @phpstan-var T $node */ |
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$node = AST::fromArray($item); |
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$this->nodes[$offset] = $node; |
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} |
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return $this->nodes[$offset]; |
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} |
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/** |
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* @param int|string $offset |
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* @param Node|mixed[] $value |
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* |
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* @phpstan-param T|mixed[] $value |
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*/ |
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public function offsetSet($offset, $value) : void |
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{ |
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if (is_array($value)) { |
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if (isset($value['kind'])) { |
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/** @phpstan-var T $node */ |
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$node = AST::fromArray($value); |
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$this->nodes[$offset] = $node; |
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return; |
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} |
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throw new InvalidArgumentException( |
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'Expected array value to be valid node data structure, missing key "kind"' |
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); |
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} |
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$this->nodes[$offset] = $value; |
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} |
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/** |
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* @param int|string $offset |
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*/ |
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public function offsetUnset($offset) : void |
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{ |
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unset($this->nodes[$offset]); |
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} |
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/** |
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* @param mixed $replacement |
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* |
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* @phpstan-return NodeList<T> |
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*/ |
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public function splice(int $offset, int $length, $replacement = null) : NodeList |
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{ |
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return new NodeList(array_splice($this->nodes, $offset, $length, $replacement)); |
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} |
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/** |
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* @param NodeList|Node[] $list |
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* |
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* @phpstan-param NodeList<T>|array<T> $list |
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* @phpstan-return NodeList<T> |
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*/ |
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60 |
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public function merge($list) : NodeList |
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{ |
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if ($list instanceof self) { |
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$list = $list->nodes; |
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} |
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return new NodeList(array_merge($this->nodes, $list)); |
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} |
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143
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791 |
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public function getIterator() : Traversable |
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{ |
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foreach ($this->nodes as $key => $_) { |
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yield $this->offsetGet($key); |
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} |
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789 |
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} |
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150
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769 |
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public function count() : int |
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{ |
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769 |
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return count($this->nodes); |
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} |
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} |
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simPod /
graphql-php
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