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KVSourceRange.php
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KVSourceRange.php
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<?php
declare( strict_types = 1 );
namespace Wikimedia\Parsoid\Tokens;
use Wikimedia\Assert\Assert;
use Wikimedia\JsonCodec\JsonCodecable;
use Wikimedia\JsonCodec\JsonCodecableTrait;
/**
* Represents a source offset range for a key-value pair.
*/
class KVSourceRange implements JsonCodecable {
use JsonCodecableTrait;
/**
* Source range for the key.
* @var SourceRange
*/
public $key;
/**
* Source range for the value.
* @var SourceRange
*/
public $value;
/**
* Create a new key-value source offset range.
* @param int $keyStart The start index of the key
* (unicode code points, inclusive)
* @param int $keyEnd The end index of the key
* (unicode code points, exclusive)
* @param int $valueStart The start index of the value
* (unicode code points, inclusive)
* @param int $valueEnd The end index of the value
* (unicode code points, exclusive)
*/
public function __construct( int $keyStart, int $keyEnd, int $valueStart, int $valueEnd ) {
$this->key = new SourceRange( $keyStart, $keyEnd );
$this->value = new SourceRange( $valueStart, $valueEnd );
}
/**
* Return a new key-value source offset range shifted by $amount.
* @param int $amount The amount to shift by
* @return KVSourceRange
*/
public function offset( int $amount ): KVSourceRange {
return new KVSourceRange(
$this->key->start + $amount,
$this->key->end + $amount,
$this->value->start + $amount,
$this->value->end + $amount
);
}
/**
* Create a new key-value source offset range from an array of
* integers (such as created during JSON serialization).
* @param int[] $so
* @return KVSourceRange
*/
public static function newFromJsonArray( array $so ): KVSourceRange {
Assert::invariant(
count( $so ) === 4,
'Not enough elements in KVSourceRange array'
);
return new KVSourceRange( $so[0], $so[1], $so[2], $so[3] );
}
/**
* @inheritDoc
*/
public function toJsonArray(): array {
return [
$this->key->start,
$this->key->end,
$this->value->start,
$this->value->end,
];
}
}

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text/x-php
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Sat, Oct 3, 12:32 (3 d, 2 h ago)
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93/eb/5c97ed6d967d6dfb5a95361988a0
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KVSourceRange.php (2 KB)

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