Assertion.php

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<?php

class SimpleSAML_Error_Assertion extends SimpleSAML_Error_Exception
{


    private $assertion;


    public function __construct($assertion = null)
    {
        assert($assertion === null || is_string($assertion));

        $msg = 'Assertion failed: ' . var_export($assertion, true);
        parent::__construct($msg);

        $this->assertion = $assertion;
    }


    public function getAssertion()
    {
        return $this->assertion;
    }


    public static function installHandler()
    {

        assert_options(ASSERT_WARNING, 0);
        assert_options(ASSERT_QUIET_EVAL, 0);
        assert_options(ASSERT_CALLBACK, array('SimpleSAML_Error_Assertion', 'onAssertion'));
    }


    public static function onAssertion($file, $line, $message)
    {

        if (!empty($message)) {
            $exception = new self($message);
        } else {
            $exception = new self();
        }

        $exception->logError();
    }
}