<?php

declare(strict_types=1);

namespace PHPJava\Kernel\Mnemonics;

use PHPJava\Kernel\Filters\Normalizer;

final class _anewarray extends AbstractOperationCode implements OperationCodeInterface

{

protected $isStackingOperation = true;

public function getOperands(): ?Operands

{

parent::getOperands();

if ($this->operands !== null) {

return $this->operands;

}

$indexbyte = $this->readUnsignedShort();

return $this->operands = new Operands(

['indexbyte', $indexbyte, ['indexbyte1', 'indexbyte2']]

);

}

/**

* create a new array of references of length count and component

* type identified by the class reference index (indexbyte1 << 8 + indexbyte2)

* in the constant pool.

*/

public function execute(): void

{

parent::execute();

// Current class index for Constant Pool

$this->getOperands()['indexbyte'];

// Get an array size

$count = Normalizer::getPrimitiveValue(

$this->popFromOperandStack()

);

// Make an array with object.

$array = new \ArrayIterator(

array_fill(

0,

$count,

null

)

);

$this->pushToOperandStackByReference(

$array

);

}

}