<?php

declare(strict_types=1);

namespace PHPJava\Kernel\Mnemonics;

use PHPJava\Exceptions\OperationException;

final class Operands implements \ArrayAccess, \Countable

{

private $operands = [];

public function __construct(...$operands)

{

foreach ($operands as [$alias, $value, $operandNames]) {

$this->operands[$alias] = [$value, $operandNames];

}

}

public function count()

{

return count($this->getInfo());

}

public function getInfo(): array

{

$operands = [];

foreach ($this->operands as [, $operandParameters]) {

ArrayTool::concat($operands, ...$operandParameters);

}

return $operands;

}

public function getElements(): array

{

return $this->operands;

}

public function offsetExists($offset)

{

return isset($this->operands[$offset]);

}

public function offsetGet($offset)

{

if (!$this->offsetExists($offset)) {

throw new OperationException('Does not exist an operand.');

}

return $this->operands[$offset][0];

}

public function offsetSet($offset, $value)

{

throw new OperationException('Operands class is not supported overwrite.');

}

public function offsetUnset($offset)

{

throw new OperationException('Operands class is not supported unset an element.');

}

}