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<?php |
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namespace Riimu\Kit\PHPEncoder\Encoder; |
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/** |
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* Encoder for integer values. |
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* @author Riikka Kalliomäki <[email protected]> |
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* @copyright Copyright (c) 2014-2017 Riikka Kalliomäki |
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* @license http://opensource.org/licenses/mit-license.php MIT License |
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*/ |
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class IntegerEncoder implements Encoder |
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{ |
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/** @var array Default values for options in the encoder */ |
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private static $defaultOptions = [ |
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'integer.type' => 'decimal', |
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]; |
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public function getDefaultOptions() |
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{ |
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return self::$defaultOptions; |
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} |
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public function supports($value) |
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{ |
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return is_int($value); |
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} |
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public function encode($value, $depth, array $options, callable $encode) |
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{ |
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$encoders = [ |
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'binary' => function ($value) { |
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return $this->encodeBinary($value); |
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}, |
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'octal' => function ($value) { |
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return $this->encodeOctal($value); |
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}, |
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'decimal' => function ($value, $options) { |
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return $this->encodeDecimal($value, $options); |
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}, |
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'hexadecimal' => function ($value) { |
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return $this->encodeHexadecimal($value); |
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}, |
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]; |
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if (!isset($encoders[$options['integer.type']])) { |
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throw new \InvalidArgumentException('Invalid integer encoding type'); |
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} |
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$callback = $encoders[$options['integer.type']]; |
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return $callback((int) $value, $options); |
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} |
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public function encodeBinary($integer) |
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{ |
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return sprintf('%s0b%s', $this->sign($integer), decbin(abs($integer))); |
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} |
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public function encodeOctal($integer) |
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{ |
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return sprintf('%s0%s', $this->sign($integer), decoct(abs($integer))); |
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} |
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public function encodeDecimal($integer, $options) |
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{ |
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if ($integer === 1 << (PHP_INT_SIZE * 8 - 1)) { |
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return sprintf('(int)%s%s', $options['whitespace'] ? ' ' : '', $integer); |
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} |
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return var_export($integer, true); |
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} |
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public function encodeHexadecimal($integer) |
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{ |
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return sprintf('%s0x%s', $this->sign($integer), dechex(abs($integer))); |
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} |
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private function sign($integer) |
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{ |
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if ($integer < 0) { |
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return '-'; |
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} |
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return ''; |
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} |
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} |
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Riimu /
Kit-PHPEncoder
