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@@ -1,159 +1,247 @@
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<?php
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declare(strict_types=1);
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namespace GraphQL\Utils;
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use ErrorException;
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use Exception;
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use GraphQL\Error\Error;
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use GraphQL\Error\InvariantViolation;
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use GraphQL\Error\Warning;
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use GraphQL\Language\AST\Node;
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use GraphQL\Type\Definition\Type;
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use GraphQL\Type\Definition\WrappingType;
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use \Traversable, \InvalidArgumentException;
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use InvalidArgumentException;
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use LogicException;
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use stdClass;
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use Traversable;
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use function array_keys;
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use function array_map;
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use function array_reduce;
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use function array_shift;
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use function array_slice;
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use function array_values;
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use function asort;
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use function count;
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use function dechex;
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use function func_get_args;
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use function func_num_args;
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use function get_class;
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use function gettype;
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use function is_array;
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use function is_int;
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use function is_object;
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use function is_scalar;
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use function is_string;
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use function json_encode;
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use function levenshtein;
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use function max;
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use function mb_convert_encoding;
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use function mb_strlen;
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use function mb_substr;
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use function method_exists;
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use function ord;
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use function pack;
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use function preg_match;
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use function property_exists;
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use function range;
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use function restore_error_handler;
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use function set_error_handler;
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use function sprintf;
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use function strtolower;
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use function unpack;
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class Utils
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{
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public static function undefined()
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{
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static $undefined;
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return $undefined ?: $undefined = new \stdClass();
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return $undefined ?? $undefined = new stdClass();
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}
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/**
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* @param object $obj
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* @param array $vars
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* @param array $requiredKeys
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* Check if the value is invalid
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*
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* @return array
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* @param mixed $value
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*
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* @return bool
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*/
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public static function isInvalid($value)
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{
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return self::undefined() === $value;
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}
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/**
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* @param object $obj
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* @param mixed[] $vars
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* @param string[] $requiredKeys
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*
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* @return object
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*/
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public static function assign($obj, array $vars, array $requiredKeys = [])
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{
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foreach ($requiredKeys as $key) {
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if (!isset($vars[$key])) {
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throw new InvalidArgumentException("Key {$key} is expected to be set and not to be null");
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if (! isset($vars[$key])) {
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throw new InvalidArgumentException(sprintf('Key %s is expected to be set and not to be null', $key));
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}
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}
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foreach ($vars as $key => $value) {
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if (!property_exists($obj, $key)) {
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if (! property_exists($obj, $key)) {
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$cls = get_class($obj);
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Warning::warn(
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"Trying to set non-existing property '$key' on class '$cls'",
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sprintf("Trying to set non-existing property '%s' on class '%s'", $key, $cls),
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Warning::WARNING_ASSIGN
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);
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}
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$obj->{$key} = $value;
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}
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return $obj;
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}
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/**
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* @param array|Traversable $traversable
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* @param callable $predicate
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* @return null
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* @param iterable<mixed> $iterable
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*
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* @return mixed|null
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*/
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public static function find($traversable, callable $predicate)
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public static function find($iterable, callable $predicate)
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{
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self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
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self::invariant(
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is_array($iterable) || $iterable instanceof Traversable,
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__METHOD__ . ' expects array or Traversable'
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);
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foreach ($traversable as $key => $value) {
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foreach ($iterable as $key => $value) {
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if ($predicate($value, $key)) {
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return $value;
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}
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}
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return null;
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}
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/**
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* @param $traversable
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* @param callable $predicate
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* @return array
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* @throws \Exception
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* @param iterable<mixed> $iterable
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*
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* @return array<mixed>
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*
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* @throws Exception
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*/
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public static function filter($traversable, callable $predicate)
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public static function filter($iterable, callable $predicate) : array
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{
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self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
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self::invariant(
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is_array($iterable) || $iterable instanceof Traversable,
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__METHOD__ . ' expects array or Traversable'
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);
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$result = [];
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$assoc = false;
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foreach ($traversable as $key => $value) {
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if (!$assoc && !is_int($key)) {
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$assoc = false;
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foreach ($iterable as $key => $value) {
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if (! $assoc && ! is_int($key)) {
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$assoc = true;
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}
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if ($predicate($value, $key)) {
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$result[$key] = $value;
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if (! $predicate($value, $key)) {
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continue;
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}
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$result[$key] = $value;
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}
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return $assoc ? $result : array_values($result);
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}
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/**
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* @param array|\Traversable $traversable
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* @param callable $fn function($value, $key) => $newValue
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* @return array
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* @throws \Exception
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* @param iterable<mixed> $iterable
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*
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* @return array<mixed>
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*
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* @throws Exception
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*/
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public static function map($traversable, callable $fn)
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public static function map($iterable, callable $fn) : array
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{
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self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
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self::invariant(
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is_array($iterable) || $iterable instanceof Traversable,
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__METHOD__ . ' expects array or Traversable'
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);
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$map = [];
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foreach ($traversable as $key => $value) {
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foreach ($iterable as $key => $value) {
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$map[$key] = $fn($value, $key);
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}
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return $map;
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}
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/**
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* @param $traversable
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* @param callable $fn
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* @return array
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* @throws \Exception
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* @param iterable<mixed> $iterable
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*
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* @return array<mixed>
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*
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* @throws Exception
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*/
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public static function mapKeyValue($traversable, callable $fn)
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public static function mapKeyValue($iterable, callable $fn) : array
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{
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self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
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self::invariant(
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is_array($iterable) || $iterable instanceof Traversable,
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__METHOD__ . ' expects array or Traversable'
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);
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$map = [];
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foreach ($traversable as $key => $value) {
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list($newKey, $newValue) = $fn($value, $key);
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$map[$newKey] = $newValue;
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foreach ($iterable as $key => $value) {
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[$newKey, $newValue] = $fn($value, $key);
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$map[$newKey] = $newValue;
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}
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return $map;
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}
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/**
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* @param $traversable
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* @param callable $keyFn function($value, $key) => $newKey
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* @return array
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* @throws \Exception
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* @param iterable<mixed> $iterable
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*
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* @return array<mixed>
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*
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* @throws Exception
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*/
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public static function keyMap($traversable, callable $keyFn)
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public static function keyMap($iterable, callable $keyFn) : array
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{
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self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
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self::invariant(
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is_array($iterable) || $iterable instanceof Traversable,
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__METHOD__ . ' expects array or Traversable'
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);
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$map = [];
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foreach ($traversable as $key => $value) {
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foreach ($iterable as $key => $value) {
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$newKey = $keyFn($value, $key);
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if (is_scalar($newKey)) {
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$map[$newKey] = $value;
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if (! is_scalar($newKey)) {
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continue;
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}
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$map[$newKey] = $value;
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}
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return $map;
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}
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/**
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* @param $traversable
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* @param callable $fn
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* @param iterable<mixed> $iterable
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*/
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public static function each($traversable, callable $fn)
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public static function each($iterable, callable $fn) : void
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{
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self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
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self::invariant(
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is_array($iterable) || $iterable instanceof Traversable,
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__METHOD__ . ' expects array or Traversable'
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);
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foreach ($traversable as $key => $item) {
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foreach ($iterable as $key => $item) {
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$fn($item, $key);
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}
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}
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/**
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* Splits original traversable to several arrays with keys equal to $keyFn return
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* Splits original iterable to several arrays with keys equal to $keyFn return
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*
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* E.g. Utils::groupBy([1, 2, 3, 4, 5], function($value) {return $value % 3}) will output:
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* [
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@@ -164,19 +252,22 @@ class Utils
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*
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* $keyFn is also allowed to return array of keys. Then value will be added to all arrays with given keys
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*
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* @param $traversable
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* @param callable $keyFn function($value, $key) => $newKey(s)
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* @return array
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* @param iterable<mixed> $iterable
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*
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* @return array<array<mixed>>
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*/
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public static function groupBy($traversable, callable $keyFn)
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public static function groupBy($iterable, callable $keyFn) : array
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{
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self::invariant(is_array($traversable) || $traversable instanceof \Traversable, __METHOD__ . ' expects array or Traversable');
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self::invariant(
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is_array($iterable) || $iterable instanceof Traversable,
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__METHOD__ . ' expects array or Traversable'
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);
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$grouped = [];
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foreach ($traversable as $key => $value) {
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foreach ($iterable as $key => $value) {
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$newKeys = (array) $keyFn($value, $key);
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foreach ($newKeys as $key) {
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$grouped[$key][] = $value;
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foreach ($newKeys as $newKey) {
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$grouped[$newKey][] = $value;
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}
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}
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@@ -184,56 +275,68 @@ class Utils
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}
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/**
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* @param array|Traversable $traversable
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* @param callable $keyFn
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* @param callable $valFn
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* @return array
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* @param iterable<mixed> $iterable
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*
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* @return array<mixed>
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*/
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public static function keyValMap($traversable, callable $keyFn, callable $valFn)
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public static function keyValMap($iterable, callable $keyFn, callable $valFn) : array
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{
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$map = [];
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foreach ($traversable as $item) {
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foreach ($iterable as $item) {
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$map[$keyFn($item)] = $valFn($item);
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}
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return $map;
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}
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/**
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* @param $traversable
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* @param callable $predicate
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* @return bool
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* @param iterable<mixed> $iterable
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*/
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public static function every($traversable, callable $predicate)
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public static function every($iterable, callable $predicate) : bool
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{
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foreach ($traversable as $key => $value) {
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if (!$predicate($value, $key)) {
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foreach ($iterable as $key => $value) {
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if (! $predicate($value, $key)) {
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return false;
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||||
}
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||||
}
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return true;
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}
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|
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/**
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* @param $test
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* @param iterable<mixed> $iterable
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*/
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public static function some($iterable, callable $predicate) : bool
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{
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foreach ($iterable as $key => $value) {
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if ($predicate($value, $key)) {
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return true;
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||||
}
|
||||
}
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return false;
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}
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|
||||
/**
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* @param bool $test
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* @param string $message
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* @param mixed $sprintfParam1
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* @param mixed $sprintfParam2 ...
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||||
* @throws InvariantViolation
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||||
*/
|
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public static function invariant($test, $message = '')
|
||||
{
|
||||
if (!$test) {
|
||||
if (! $test) {
|
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if (func_num_args() > 2) {
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$args = func_get_args();
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array_shift($args);
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$message = call_user_func_array('sprintf', $args);
|
||||
$message = sprintf(...$args);
|
||||
}
|
||||
// TODO switch to Error here
|
||||
throw new InvariantViolation($message);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param $var
|
||||
* @param Type|mixed $var
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public static function getVariableType($var)
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||||
@@ -243,61 +346,51 @@ class Utils
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if ($var instanceof WrappingType) {
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||||
$var = $var->getWrappedType(true);
|
||||
}
|
||||
|
||||
return $var->name;
|
||||
}
|
||||
|
||||
return is_object($var) ? get_class($var) : gettype($var);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param mixed $var
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public static function printSafeJson($var)
|
||||
{
|
||||
if ($var instanceof \stdClass) {
|
||||
if ($var instanceof stdClass) {
|
||||
$var = (array) $var;
|
||||
}
|
||||
if (is_array($var)) {
|
||||
$count = count($var);
|
||||
if (!isset($var[0]) && $count > 0) {
|
||||
$keys = [];
|
||||
$keyCount = 0;
|
||||
foreach ($var as $key => $value) {
|
||||
$keys[] = '"' . $key . '"';
|
||||
if ($keyCount++ > 4) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
$keysLabel = $keyCount === 1 ? 'key' : 'keys';
|
||||
$msg = "object with first $keysLabel: " . implode(', ', $keys);
|
||||
} else {
|
||||
$msg = "array($count)";
|
||||
}
|
||||
return $msg;
|
||||
return json_encode($var);
|
||||
}
|
||||
if ('' === $var) {
|
||||
if ($var === '') {
|
||||
return '(empty string)';
|
||||
}
|
||||
if (null === $var) {
|
||||
if ($var === null) {
|
||||
return 'null';
|
||||
}
|
||||
if (false === $var) {
|
||||
if ($var === false) {
|
||||
return 'false';
|
||||
}
|
||||
if (true === $var) {
|
||||
return 'false';
|
||||
if ($var === true) {
|
||||
return 'true';
|
||||
}
|
||||
if (is_string($var)) {
|
||||
return "\"$var\"";
|
||||
return sprintf('"%s"', $var);
|
||||
}
|
||||
if (is_scalar($var)) {
|
||||
return (string) $var;
|
||||
}
|
||||
|
||||
return gettype($var);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param $var
|
||||
* @param Type|mixed $var
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public static function printSafe($var)
|
||||
@@ -306,44 +399,34 @@ class Utils
|
||||
return $var->toString();
|
||||
}
|
||||
if (is_object($var)) {
|
||||
if (method_exists($var, '__toString')) {
|
||||
return (string) $var;
|
||||
}
|
||||
|
||||
return 'instance of ' . get_class($var);
|
||||
}
|
||||
if (is_array($var)) {
|
||||
$count = count($var);
|
||||
if (!isset($var[0]) && $count > 0) {
|
||||
$keys = [];
|
||||
$keyCount = 0;
|
||||
foreach ($var as $key => $value) {
|
||||
$keys[] = '"' . $key . '"';
|
||||
if ($keyCount++ > 4) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
$keysLabel = $keyCount === 1 ? 'key' : 'keys';
|
||||
$msg = "associative array($count) with first $keysLabel: " . implode(', ', $keys);
|
||||
} else {
|
||||
$msg = "array($count)";
|
||||
}
|
||||
return $msg;
|
||||
return json_encode($var);
|
||||
}
|
||||
if ('' === $var) {
|
||||
if ($var === '') {
|
||||
return '(empty string)';
|
||||
}
|
||||
if (null === $var) {
|
||||
if ($var === null) {
|
||||
return 'null';
|
||||
}
|
||||
if (false === $var) {
|
||||
if ($var === false) {
|
||||
return 'false';
|
||||
}
|
||||
if (true === $var) {
|
||||
return 'false';
|
||||
if ($var === true) {
|
||||
return 'true';
|
||||
}
|
||||
if (is_string($var)) {
|
||||
return "\"$var\"";
|
||||
return $var;
|
||||
}
|
||||
if (is_scalar($var)) {
|
||||
return (string) $var;
|
||||
}
|
||||
|
||||
return gettype($var);
|
||||
}
|
||||
|
||||
@@ -352,18 +435,16 @@ class Utils
|
||||
*
|
||||
* @param string $ord
|
||||
* @param string $encoding
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public static function chr($ord, $encoding = 'UTF-8')
|
||||
{
|
||||
if ($ord <= 255) {
|
||||
return chr($ord);
|
||||
}
|
||||
if ($encoding === 'UCS-4BE') {
|
||||
return pack("N", $ord);
|
||||
} else {
|
||||
return mb_convert_encoding(self::chr($ord, 'UCS-4BE'), $encoding, 'UCS-4BE');
|
||||
return pack('N', $ord);
|
||||
}
|
||||
|
||||
return mb_convert_encoding(self::chr($ord, 'UCS-4BE'), $encoding, 'UCS-4BE');
|
||||
}
|
||||
|
||||
/**
|
||||
@@ -371,97 +452,116 @@ class Utils
|
||||
*
|
||||
* @param string $char
|
||||
* @param string $encoding
|
||||
*
|
||||
* @return mixed
|
||||
*/
|
||||
public static function ord($char, $encoding = 'UTF-8')
|
||||
{
|
||||
if (!$char && '0' !== $char) {
|
||||
if (! $char && $char !== '0') {
|
||||
return 0;
|
||||
}
|
||||
if (!isset($char[1])) {
|
||||
if (! isset($char[1])) {
|
||||
return ord($char);
|
||||
}
|
||||
if ($encoding !== 'UCS-4BE') {
|
||||
$char = mb_convert_encoding($char, 'UCS-4BE', $encoding);
|
||||
}
|
||||
list(, $ord) = unpack('N', $char);
|
||||
return $ord;
|
||||
|
||||
return unpack('N', $char)[1];
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns UTF-8 char code at given $positing of the $string
|
||||
*
|
||||
* @param $string
|
||||
* @param $position
|
||||
* @param string $string
|
||||
* @param int $position
|
||||
*
|
||||
* @return mixed
|
||||
*/
|
||||
public static function charCodeAt($string, $position)
|
||||
{
|
||||
$char = mb_substr($string, $position, 1, 'UTF-8');
|
||||
|
||||
return self::ord($char);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param $code
|
||||
* @param int|null $code
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public static function printCharCode($code)
|
||||
{
|
||||
if (null === $code) {
|
||||
if ($code === null) {
|
||||
return '<EOF>';
|
||||
}
|
||||
|
||||
return $code < 0x007F
|
||||
// Trust JSON for ASCII.
|
||||
? json_encode(Utils::chr($code))
|
||||
? json_encode(self::chr($code))
|
||||
// Otherwise print the escaped form.
|
||||
: '"\\u' . dechex($code) . '"';
|
||||
}
|
||||
|
||||
/**
|
||||
* @param $name
|
||||
* @param bool $isIntrospection
|
||||
* @throws InvariantViolation
|
||||
* Upholds the spec rules about naming.
|
||||
*
|
||||
* @param string $name
|
||||
*
|
||||
* @throws Error
|
||||
*/
|
||||
public static function assertValidName($name, $isIntrospection = false)
|
||||
public static function assertValidName($name)
|
||||
{
|
||||
$regex = '/^[_a-zA-Z][_a-zA-Z0-9]*$/';
|
||||
|
||||
if (!$name || !is_string($name)) {
|
||||
throw new InvariantViolation(
|
||||
"Must be named. Unexpected name: " . self::printSafe($name)
|
||||
);
|
||||
}
|
||||
|
||||
if (!$isIntrospection && isset($name[1]) && $name[0] === '_' && $name[1] === '_') {
|
||||
Warning::warnOnce(
|
||||
'Name "'.$name.'" must not begin with "__", which is reserved by ' .
|
||||
'GraphQL introspection. In a future release of graphql this will ' .
|
||||
'become an exception',
|
||||
Warning::WARNING_NAME
|
||||
);
|
||||
}
|
||||
|
||||
if (!preg_match($regex, $name)) {
|
||||
throw new InvariantViolation(
|
||||
'Names must match /^[_a-zA-Z][_a-zA-Z0-9]*$/ but "'.$name.'" does not.'
|
||||
);
|
||||
$error = self::isValidNameError($name);
|
||||
if ($error) {
|
||||
throw $error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Wraps original closure with PHP error handling (using set_error_handler).
|
||||
* Resulting closure will collect all PHP errors that occur during the call in $errors array.
|
||||
* Returns an Error if a name is invalid.
|
||||
*
|
||||
* @param callable $fn
|
||||
* @param \ErrorException[] $errors
|
||||
* @return \Closure
|
||||
* @param string $name
|
||||
* @param Node|null $node
|
||||
*
|
||||
* @return Error|null
|
||||
*/
|
||||
public static function isValidNameError($name, $node = null)
|
||||
{
|
||||
self::invariant(is_string($name), 'Expected string');
|
||||
|
||||
if (isset($name[1]) && $name[0] === '_' && $name[1] === '_') {
|
||||
return new Error(
|
||||
sprintf('Name "%s" must not begin with "__", which is reserved by ', $name) .
|
||||
'GraphQL introspection.',
|
||||
$node
|
||||
);
|
||||
}
|
||||
|
||||
if (! preg_match('/^[_a-zA-Z][_a-zA-Z0-9]*$/', $name)) {
|
||||
return new Error(
|
||||
sprintf('Names must match /^[_a-zA-Z][_a-zA-Z0-9]*$/ but "%s" does not.', $name),
|
||||
$node
|
||||
);
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Wraps original callable with PHP error handling (using set_error_handler).
|
||||
* Resulting callable will collect all PHP errors that occur during the call in $errors array.
|
||||
*
|
||||
* @param ErrorException[] $errors
|
||||
*
|
||||
* @return callable
|
||||
*/
|
||||
public static function withErrorHandling(callable $fn, array &$errors)
|
||||
{
|
||||
return function() use ($fn, &$errors) {
|
||||
return static function () use ($fn, &$errors) {
|
||||
// Catch custom errors (to report them in query results)
|
||||
set_error_handler(function ($severity, $message, $file, $line) use (&$errors) {
|
||||
$errors[] = new \ErrorException($message, 0, $severity, $file, $line);
|
||||
set_error_handler(static function ($severity, $message, $file, $line) use (&$errors) : void {
|
||||
$errors[] = new ErrorException($message, 0, $severity, $file, $line);
|
||||
});
|
||||
|
||||
try {
|
||||
@@ -471,4 +571,88 @@ class Utils
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* @param string[] $items
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public static function quotedOrList(array $items)
|
||||
{
|
||||
$items = array_map(
|
||||
static function ($item) : string {
|
||||
return sprintf('"%s"', $item);
|
||||
},
|
||||
$items
|
||||
);
|
||||
|
||||
return self::orList($items);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param string[] $items
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public static function orList(array $items)
|
||||
{
|
||||
if (count($items) === 0) {
|
||||
throw new LogicException('items must not need to be empty.');
|
||||
}
|
||||
$selected = array_slice($items, 0, 5);
|
||||
$selectedLength = count($selected);
|
||||
$firstSelected = $selected[0];
|
||||
|
||||
if ($selectedLength === 1) {
|
||||
return $firstSelected;
|
||||
}
|
||||
|
||||
return array_reduce(
|
||||
range(1, $selectedLength - 1),
|
||||
static function ($list, $index) use ($selected, $selectedLength) : string {
|
||||
return $list .
|
||||
($selectedLength > 2 ? ', ' : ' ') .
|
||||
($index === $selectedLength - 1 ? 'or ' : '') .
|
||||
$selected[$index];
|
||||
},
|
||||
$firstSelected
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Given an invalid input string and a list of valid options, returns a filtered
|
||||
* list of valid options sorted based on their similarity with the input.
|
||||
*
|
||||
* Includes a custom alteration from Damerau-Levenshtein to treat case changes
|
||||
* as a single edit which helps identify mis-cased values with an edit distance
|
||||
* of 1
|
||||
*
|
||||
* @param string $input
|
||||
* @param string[] $options
|
||||
*
|
||||
* @return string[]
|
||||
*/
|
||||
public static function suggestionList($input, array $options)
|
||||
{
|
||||
$optionsByDistance = [];
|
||||
$threshold = mb_strlen($input) * 0.4 + 1;
|
||||
foreach ($options as $option) {
|
||||
if ($input === $option) {
|
||||
$distance = 0;
|
||||
} else {
|
||||
$distance = (strtolower($input) === strtolower($option)
|
||||
? 1
|
||||
: levenshtein($input, $option));
|
||||
}
|
||||
if ($distance > $threshold) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$optionsByDistance[$option] = $distance;
|
||||
}
|
||||
|
||||
asort($optionsByDistance);
|
||||
|
||||
return array_keys($optionsByDistance);
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user