Railt\SDL\Frontend\AST\Invocation\NumberValueNode

Complexity

Total Complexity

19

Size/Duplication

Total Lines	134
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	4

Importance

Changes

0

12 Methods

Rating	Name	Duplication	Size	Complexity
A	unpack()	0	10	2
B	parse()	0	24	6
A	isHex()	0	4	1
A	parseHex()	0	4	1
A	isBinary()	0	4	1
A	parseBin()	0	4	1
A	isExponential()	0	4	1
A	parseExponential()	0	4	1
A	isFloat()	0	4	1
A	parseFloat()	0	4	1
A	isInt()	0	4	2
A	parseInt()	0	4	1

<?php
/**
 * This file is part of Railt package.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
declare(strict_types=1);

namespace Railt\SDL\Frontend\AST\Invocation;

use Railt\Parser\Ast\LeafInterface;
use Railt\Parser\Ast\Rule;
use Railt\SDL\Frontend\IR\Value\FloatValue;
use Railt\SDL\Frontend\IR\Value\IntValue;
use Railt\SDL\Frontend\IR\Value\ValueInterface;
use Railt\SDL\Frontend\Parser;

/**
 * Class NumberValueNode
 */
class NumberValueNode extends Rule implements AstValueInterface
{
    /**
     * @return ValueInterface
     */
    public function unpack(): ValueInterface
    {
        $value = $this->parse();

        if (\is_int($value)) {
            return new IntValue($value, $this->getOffset());
        }

        return new FloatValue((float)$value, $this->getOffset());
    }

    /**
     * @return int|float
     */
    protected function parse()
    {
        /** @var LeafInterface $value */
        $value = $this->getChild(0);

        switch (true) {
            case $this->isHex($value):
                return $this->parseHex($value->getValue(1));

            case $this->isBinary($value):
                return $this->parseBin($value->getValue(1));

            case $this->isExponential($value):
                return $this->parseExponential($value->getValue());

            case $this->isFloat($value):
                return $this->parseFloat($value->getValue());

            case $this->isInt($value):
                return $this->parseInt($value->getValue());
        }

        return (float)$value->getValue();
    }

    /**
     * @param LeafInterface $leaf
     * @return bool
     */
    private function isHex(LeafInterface $leaf): bool
    {
        return $leaf->getName() === Parser::T_HEX_NUMBER;
    }

    /**
     * @param string $value
     * @return int
     */
    private function parseHex(string $value): int
    {
        return \hexdec($value);
    }

    /**
     * @param LeafInterface $leaf
     * @return bool
     */
    private function isBinary(LeafInterface $leaf): bool
    {
        return $leaf->getName() === Parser::T_BIN_NUMBER;
    }

    /**
     * @param string $value
     * @return int
     */
    private function parseBin(string $value): int
    {
        return \bindec($value);
    }

    /**
     * @param LeafInterface $leaf
     * @return bool
     */
    private function isExponential(LeafInterface $leaf): bool
    {
        return \substr_count(\mb_strtolower($leaf->getValue()), 'e') !== 0;
    }

    /**
     * @param string $value
     * @return float
     */
    private function parseExponential(string $value): float
    {
        return (float)$value;
    }

    /**
     * @param LeafInterface $leaf
     * @return bool
     */
    private function isFloat(LeafInterface $leaf): bool
    {
        return \substr_count($leaf->getValue(), '.') !== 0;
    }

    /**
     * @param string $value
     * @return float
     */
    private function parseFloat(string $value): float
    {
        return (float)$value;
    }

    /**
     * @param LeafInterface $leaf
     * @return bool
     */
    private function isInt(LeafInterface $leaf): bool
    {
        return $leaf->getName() === Parser::T_NUMBER && \substr_count($leaf->getValue(), '.') === 0;
    }

    /**
     * @param string $value
     * @return int
     */
    private function parseInt(string $value): int
    {
        return $value >> 0;
    }
}