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<?php
/**
* SCSSPHP
*
* @copyright 2012-2020 Leaf Corcoran
*
* @license http://opensource.org/licenses/MIT MIT
*
* @link http://scssphp.github.io/scssphp
*/
namespace ScssPhp\ScssPhp;
use ScssPhp\ScssPhp\Node\Number;
final class ValueConverter
{
// Prevent instantiating it
private function __construct()
{
}
/**
* Parses a value from a Scss source string.
*
* The returned value is guaranteed to be supported by the
* Compiler methods for registering custom variables. No other
* guarantee about it is provided. It should be considered
* opaque values by the caller.
*
* @param string $source
*
* @return mixed
*/
public static function parseValue($source)
{
$parser = new Parser(__CLASS__);
if (!$parser->parseValue($source, $value)) {
throw new \InvalidArgumentException(sprintf('Invalid value source "%s".', $source));
}
return $value;
}
/**
* Converts a PHP value to a Sass value
*
* The returned value is guaranteed to be supported by the
* Compiler methods for registering custom variables. No other
* guarantee about it is provided. It should be considered
* opaque values by the caller.
*
* @param mixed $value
*
* @return mixed
*/
public static function fromPhp($value)
{
if ($value instanceof Number) {
return $value;
}
if (is_array($value) && isset($value[0]) && \in_array($value[0], [Type::T_NULL, Type::T_COLOR, Type::T_KEYWORD, Type::T_LIST, Type::T_MAP, Type::T_STRING])) {
return $value;
}
if ($value === null) {
return Compiler::$null;
}
if ($value === true) {
return Compiler::$true;
}
if ($value === false) {
return Compiler::$false;
}
if ($value === '') {
return Compiler::$emptyString;
}
if (\is_int($value) || \is_float($value)) {
return new Number($value, '');
}
if (\is_string($value)) {
return [Type::T_STRING, '"', [$value]];
}
throw new \InvalidArgumentException(sprintf('Cannot convert the value of type "%s" to a Sass value.', gettype($value)));
}
}