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<?php |
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/** |
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* This file is part of Railt package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Railt\SDL\Compiler\Ast\Value; |
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use Railt\Parser\Ast\LeafInterface; |
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use Railt\Parser\Ast\Rule; |
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use Railt\SDL\Compiler\Parser; |
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/** |
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* Class NumberValueNode |
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*/ |
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class NumberValueNode extends Rule implements ValueInterface |
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{ |
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/** |
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* @var float|int|null |
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*/ |
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private $value; |
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/** |
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* @return float|int|null |
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*/ |
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public function toPrimitive() |
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{ |
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if ($this->value === null) { |
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$this->value = $this->parse(); |
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} |
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return $this->value; |
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} |
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/** |
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* @return int|float |
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*/ |
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protected function parse() |
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{ |
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/** @var LeafInterface $value */ |
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$value = $this->getChild(0); |
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switch (true) { |
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case $this->isHex($value): |
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return $this->parseHex($value->getValue(1)); |
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case $this->isBinary($value): |
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return $this->parseBin($value->getValue(1)); |
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case $this->isExponential($value): |
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return $this->parseExponential($value->getValue()); |
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case $this->isFloat($value): |
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return $this->parseFloat($value->getValue()); |
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case $this->isInt($value): |
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return $this->parseInt($value->getValue()); |
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} |
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return (float)$value->getValue(); |
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} |
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/** |
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* @param string $value |
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* @return int |
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*/ |
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private function parseHex(string $value): int |
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{ |
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return \hexdec($value); |
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} |
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/** |
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* @param string $value |
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* @return int |
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*/ |
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private function parseBin(string $value): int |
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{ |
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return \bindec($value); |
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} |
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/** |
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* @param string $value |
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* @return float |
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*/ |
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private function parseExponential(string $value): float |
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{ |
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return (float)$value; |
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} |
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/** |
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* @param string $value |
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* @return float |
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*/ |
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private function parseFloat(string $value): float |
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{ |
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return (float)$value; |
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} |
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/** |
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* @param string $value |
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* @return int |
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*/ |
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private function parseInt(string $value): int |
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{ |
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return $value >> 0; |
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} |
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/** |
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* @param LeafInterface $leaf |
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* @return bool |
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*/ |
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private function isHex(LeafInterface $leaf): bool |
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{ |
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return $leaf->getName() === Parser::T_HEX_NUMBER; |
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} |
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/** |
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* @param LeafInterface $leaf |
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* @return bool |
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*/ |
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private function isBinary(LeafInterface $leaf): bool |
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{ |
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return $leaf->getName() === Parser::T_BIN_NUMBER; |
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} |
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/** |
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* @param LeafInterface $leaf |
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* @return bool |
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*/ |
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private function isExponential(LeafInterface $leaf): bool |
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{ |
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return \substr_count(\mb_strtolower($leaf->getValue()), 'e') !== 0; |
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} |
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/** |
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* @param LeafInterface $leaf |
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* @return bool |
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*/ |
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private function isFloat(LeafInterface $leaf): bool |
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{ |
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return \substr_count($leaf->getValue(), '.') !== 0; |
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} |
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/** |
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* @param LeafInterface $leaf |
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* @return bool |
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*/ |
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private function isInt(LeafInterface $leaf): bool |
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{ |
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return $leaf->getName() === Parser::T_NUMBER && |
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\substr_count($leaf->getValue(), '.') === 0; |
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} |
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} |
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railt /
sdl
