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<?php |
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/* |
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* This file is part of the JVal 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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namespace JVal; |
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use JVal\Exception\UnsupportedTypeException; |
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/** |
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* Wraps the list of primitive types defined in the JSON Schema Core |
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* specification and provides utility methods to deal with them. |
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*/ |
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class Types |
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{ |
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const TYPE_ARRAY = 'array'; |
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const TYPE_BOOLEAN = 'boolean'; |
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const TYPE_INTEGER = 'integer'; |
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const TYPE_NUMBER = 'number'; |
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const TYPE_NULL = 'null'; |
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const TYPE_OBJECT = 'object'; |
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const TYPE_STRING = 'string'; |
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/** |
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* @var array |
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*/ |
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private static $phpToJson = [ |
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'array' => self::TYPE_ARRAY, |
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'boolean' => self::TYPE_BOOLEAN, |
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'double' => self::TYPE_NUMBER, |
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'integer' => self::TYPE_INTEGER, |
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'NULL' => self::TYPE_NULL, |
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'object' => self::TYPE_OBJECT, |
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'string' => self::TYPE_STRING, |
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]; |
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/** |
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* @var array |
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*/ |
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private static $jsonToPhp = [ |
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self::TYPE_ARRAY => 'array', |
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self::TYPE_BOOLEAN => 'boolean', |
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self::TYPE_INTEGER => 'integer', |
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self::TYPE_NUMBER => 'double', |
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self::TYPE_NULL => 'NULL', |
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self::TYPE_OBJECT => 'object', |
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self::TYPE_STRING => 'string', |
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]; |
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/** |
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* Maps PHP native types to set of compatible JSON types. |
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* |
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* @var array |
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*/ |
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private static $typeCompatibility = [ |
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'array' => ['array' => true], |
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'boolean' => ['boolean' => true], |
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'double' => ['number' => true], |
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'integer' => ['integer' => true, 'number' => true], |
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'NULL' => ['null' => true], |
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'object' => ['object' => true], |
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'resource' => [], |
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'string' => ['string' => true], |
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'unknown type' => [], |
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]; |
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/** |
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* Returns the type of an instance according to JSON Schema Core 3.5. |
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* |
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* @param mixed $instance |
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* |
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* @return string |
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* |
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* @throws UnsupportedTypeException |
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*/ |
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356 |
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public static function getPrimitiveTypeOf($instance) |
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{ |
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356 |
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$phpType = gettype($instance); |
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if (isset(self::$phpToJson[$phpType])) { |
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return self::$phpToJson[$phpType]; |
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} |
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throw new UnsupportedTypeException($phpType); |
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} |
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/** |
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* Returns whether an instance matches a given JSON type. |
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* |
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* @param mixed $instance |
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* @param string $type |
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* |
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* @return bool |
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*/ |
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public static function isA($instance, $type) |
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{ |
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return isset(self::$typeCompatibility[gettype($instance)][$type]); |
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} |
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/** |
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* Returns whether an instance matches at least one of given JSON types. |
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* |
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* @param mixed $instance |
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* @param string[] $types |
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* |
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* @return bool |
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*/ |
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public static function isOneOf($instance, array $types) |
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{ |
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$possible = self::$typeCompatibility[gettype($instance)]; |
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foreach ($types as $type) { |
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if (isset($possible[$type])) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Returns whether a type is part of the list of primitive types |
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* defined by the specification. |
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* |
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* @param string $type |
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* |
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* @return bool |
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*/ |
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public static function isPrimitive($type) |
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{ |
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return isset(self::$jsonToPhp[$type]); |
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} |
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} |
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stefk /
JVal
