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ArrayBufferLike.php
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139 lines (125 loc) · 3.43 KB
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<?php
/**
* MIT License
*
* Copyright (c) 2018 ArrayIterator
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
declare(strict_types=1);
namespace ArrayIterator\TypedArray;
use ArrayIterator\TypedArray\Interfaces\ArrayBufferLikeInterface;
/**
* Class ArrayBufferLike
* @package ArrayIterator\TypedArray
*
* @property-read int $length
* @property-read int $byteLength
*/
abstract class ArrayBufferLike extends ArrayLike implements ArrayBufferLikeInterface
{
/**
* @var int The length in bytes of the array.
*/
protected $byteLength = 0;
/**
* {@inheritdoc}
*/
public function getByteLength() : int
{
return $this->byteLength;
}
/**
* @return int
*/
public function getLength() : int
{
return $this->length;
}
/**
* Get Array by length sliced
*
* @return array
*/
public function getBytesLengthArray() : array
{
return array_slice(
$this->getArrayCopy(),
0,
$this->getByteLength()
);
}
/**
* {@inheritdoc}
*/
public function slice(int $begin = null, int $end = null)
{
$max = $this->getByteLength();
$begin = $begin < -$max ? -$max : $begin;
$end = $end === null || $end > $max ? $max : $end;
if ($max < $begin || $begin >= $end || $end <= -$max) {
return new static();
}
$length = $end - $begin;
if ($begin < 0) {
$begin = $max + $begin;
}
return new static(array_slice(
$this->getBytesLengthArray(),
$begin,
$length
));
}
/**
* @param string $name
* @return bool
*/
public function __isset($name): bool
{
return $this->offsetExists($name);
}
/**
* @param string|float|int $name
* @param mixed $value
*/
public function __set($name, $value)
{
$this->offsetSet($name, $value);
}
/**
* @param string|float|int $name
*/
public function __unset($name)
{
$this->offsetUnset($name);
}
/**
* @param string $name
* @return mixed
*/
public function __get($name)
{
if ($name === 'length' && !isset($this->$name)) {
return $this->count();
}
return property_exists($this, $name)
? $this->$name
: $this->offsetGet($name);
}
}