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<?php |
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namespace Peridot\Leo\Responder\Exception; |
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use Exception; |
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use ReflectionClass; |
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/** |
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* Thrown by ExceptionResponder when an assertion fails. |
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* |
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* @package Peridot\Leo\Responder\Exception |
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*/ |
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final class AssertionException extends Exception |
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{ |
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/** |
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* Trim the supplied exception's stack trace to only include relevant |
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* information. |
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* |
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* Also replaces the file path and line number. |
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* |
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* @param Exception $exception The exception. |
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*/ |
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public static function trim(Exception $exception) |
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{ |
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$reflector = new ReflectionClass('Exception'); |
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$traceProperty = $reflector->getProperty('trace'); |
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$traceProperty->setAccessible(true); |
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$call = static::traceLeoCall($traceProperty->getValue($exception)); |
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if ($call) { |
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$trace = array($call); |
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list($file, $line) = self::traceCallPosition($call); |
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} else { |
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$trace = array(); |
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$file = null; |
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$line = null; |
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} |
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$traceProperty->setValue($exception, $trace); |
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self::updateExceptionPosition($reflector, $exception, $file, $line); |
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} |
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/** |
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* Find the Leo entry point call in a stack trace. |
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* |
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* @param array $trace The stack trace. |
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* |
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* @return array|null The call, or null if unable to determine the entry point. |
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*/ |
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public static function traceLeoCall(array $trace) |
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{ |
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for ($i = count($trace) - 1; $i >= 0; --$i) { |
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if (self::isLeoTraceEntry($trace[$i])) { |
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return $trace[$i]; |
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} |
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} |
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return null; |
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} |
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/** |
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* Construct a new assertion exception. |
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* |
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* @param string $message The message. |
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*/ |
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public function __construct($message) |
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{ |
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parent::__construct($message); |
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static::trim($this); |
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} |
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private static function isLeoTraceEntry($entry) |
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{ |
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$prefix = 'Peridot\\Leo\\'; |
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if (isset($entry['class'])) { |
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return 0 === strpos($entry['class'], $prefix); |
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} |
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return 0 === strpos($entry['function'], $prefix); |
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} |
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private static function traceCallPosition($call) |
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{ |
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return array( |
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isset($call['file']) ? $call['file'] : null, |
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isset($call['line']) ? $call['line'] : null, |
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); |
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} |
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private static function updateExceptionPosition($reflector, $exception, $file, $line) |
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{ |
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$fileProperty = $reflector->getProperty('file'); |
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$fileProperty->setAccessible(true); |
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$fileProperty->setValue($exception, $file); |
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$lineProperty = $reflector->getProperty('line'); |
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$lineProperty->setAccessible(true); |
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$lineProperty->setValue($exception, $line); |
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} |
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} |
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peridot-php /
leo
