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<?php |
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/** |
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* Copyright (c) 2015-present Ganbaro Digital Ltd |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* * Neither the names of the copyright holders nor the names of his |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* @category Libraries |
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* @package Reflection/Checks |
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* @author Stuart Herbert <[email protected]> |
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* @copyright 2015-present Ganbaro Digital Ltd www.ganbarodigital.com |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://code.ganbarodigital.com/php-reflection |
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*/ |
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namespace GanbaroDigital\Reflection\Checks; |
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use GanbaroDigital\Defensive\Requirements\RequireAnyOneOf; |
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use GanbaroDigital\Reflection\Checks\IsObject; |
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use GanbaroDigital\Reflection\Checks\IsStringy; |
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use GanbaroDigital\Reflection\Exceptions\E4xx_UnsupportedType; |
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use GanbaroDigital\Reflection\Requirements\RequireObject; |
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use GanbaroDigital\Reflection\Requirements\RequireStringy; |
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use GanbaroDigital\Reflection\ValueBuilders\AllMatchingTypesList; |
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use GanbaroDigital\Reflection\ValueBuilders\LookupMethodByType; |
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use GanbaroDigital\Reflection\ValueBuilders\SimpleType; |
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class IsCompatibleWith |
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{ |
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use LookupMethodByType; |
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/** |
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* is $data compatible with $constraint? |
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* |
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* @param mixed $data |
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* the object to check |
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* @param string|object $constraint |
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* @return boolean |
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* TRUE if $data is compatible |
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* FALSE otherwise |
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*/ |
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public function __invoke($data, $constraint) |
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{ |
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return self::check($data, $constraint); |
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} |
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/** |
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* is $data compatible with $constraint? |
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* |
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* @param mixed $data |
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* the object to check |
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* @param string|object $constraint |
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* @return boolean |
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* TRUE if $data is compatible |
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* FALSE otherwise |
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*/ |
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public static function check($data, $constraint) |
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{ |
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$method = self::lookupMethodFor($data, self::$dispatchTable); |
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return self::$method($data, $constraint); |
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} |
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/** |
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* is $data compatible with $constraint? |
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* |
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* @param object $data |
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* the object to check |
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* @param string|object $constraint |
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* the class or object that $data must be compatible with |
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* @return boolean |
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* TRUE if $data is compatible |
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* FALSE otherwise |
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*/ |
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public static function checkObject($data, $constraint) |
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{ |
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// defensive programming! |
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RequireObject::check($data, E4xx_UnsupportedType::class); |
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RequireAnyOneOf::check([ new IsObject, new IsStringy], [$constraint], E4xx_UnsupportedType::class); |
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// this is the easiest test case of all :) |
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return $data instanceof $constraint; |
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} |
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/** |
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* is $data compatible with $constraint? |
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* |
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* @param string $data |
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* the class name to check |
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* @param string|object $constraint |
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* the class or object that $data must be compatible with |
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* @return boolean |
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* TRUE if $data is compatible |
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* FALSE otherwise |
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*/ |
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public static function checkString($data, $constraint) |
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{ |
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// defensive programming! |
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RequireStringy::check($data, E4xx_UnsupportedType::class); |
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RequireAnyOneOf::check([ new IsObject, new IsStringy], [$constraint], E4xx_UnsupportedType::class); |
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$compatibleTypes = AllMatchingTypesList::from($data); |
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if (is_object($constraint)) { |
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$constraint = get_class($constraint); |
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} |
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// is our constraint in the list of data types that $data can be? |
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if (in_array($constraint, $compatibleTypes)) { |
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return true; |
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} |
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// if we get here, we have run out of ideas |
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return false; |
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} |
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/** |
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* called when $data is a data type that we do not support |
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* |
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* @param mixed $data |
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* @return void |
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*/ |
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public static function nothingMatchesTheInputType($data) |
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{ |
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throw new E4xx_UnsupportedType(SimpleType::from($data)); |
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} |
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/** |
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* our lookup table of which method to call for which supported data type |
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* @var array |
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*/ |
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private static $dispatchTable = [ |
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'Object' => 'checkObject', |
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'String' => 'checkString', |
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]; |
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} |
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