hhvm/hphp/system/classes/exception.php

<?php

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/**
 * ( excerpt from http://php.net/manual/en/class.exception.php )
 *
 * Exception is the base class for all Exceptions.
 *
 */
class Exception {
  protected $message = '';  // exception message
  protected $code = 0;      // user defined exception code
  protected $previous = null;
  protected $file;          // source filename of exception
  protected $line;          // source line of exception
  protected $trace;         // full stacktrace
  private $inited = false;

  private static $traceOpts = false;

  /**
   * This cannot be implemented in __construct, because a derived class may
   * implement its own __construct, losing the stacktrace. The runtime has
   * special logic to call the __init__ method on instances of Exception before
   * calling __construct just to make sure $this->trace is always populated.
   */
  final function __init__() {
    if ($this->inited) {
      return;
    }
    $this->initTrace();
    $this->inited = true;
  }

  function __construct($message = '', $code = 0, Exception $previous = null) {
    $this->message = $message;
    $this->code = $code;
    $this->previous = $previous;
  }

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/**
 * ( excerpt from http://php.net/manual/en/exception.getmessage.php )
 *
 * Returns the Exception message.
 *
 * @return     mixed   Returns the Exception message as a string.
 */
  function getMessage() {
    return $this->message;
  }

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/**
 * ( excerpt from http://php.net/manual/en/exception.getprevious.php )
 *
 * Returns the previous Exception.
 *
 * @return     mixed   Returns the previous Exception if available or NULL otherwise.
 */
  final function getPrevious() {
    return $this->previous;
  }

  final function setPrevious(Exception $previous) {
    $this->previous = $previous;
  }

  final function setPreviousChain(Exception $previous) {
    $cur = $this;
    $next = $cur->getPrevious();
    while ($next instanceof Exception) {
      $cur = $next;
      $next = $cur->getPrevious;
    }
    $cur->setPrevious($previous);
  }

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/**
 * ( excerpt from http://php.net/manual/en/exception.getcode.php )
 *
 * Returns the Exception code.
 *
 * @return     mixed   Returns the Exception code as a integer.
 */
  function getCode() {
    return $this->code;
  }

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/**
 * ( excerpt from http://php.net/manual/en/exception.getfile.php )
 *
 * Get the name of the file the exception was thrown from.
 *
 * @return     mixed   Returns the filename in which the exception was
 *                     thrown.
 */
  final function getFile() {
    return $this->file;
  }

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/**
 * ( excerpt from http://php.net/manual/en/exception.getline.php )
 *
 * Returns line number where the exception was thrown.
 *
 * @return     mixed   Returns the line number where the exception was
 *                     thrown.
 */
  final function getLine() {
    return $this->line;
  }

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/**
 * ( excerpt from http://php.net/manual/en/exception.gettrace.php )
 *
 * Returns the Exception stack trace.
 *
 * @return     mixed   Returns the Exception stack trace as an array.
 */
  final function getTrace() {
    return $this->trace;
  }

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/**
 * ( excerpt from http://php.net/manual/en/exception.gettraceasstring.php )
 *
 * Returns the Exception stack trace as a string.
 *
 * @return     mixed   Returns the Exception stack trace as a string.
 */
  final function getTraceAsString() {
    $i = 0;
    $s = "";
    foreach ($this->getTrace() as $frame) {
      if (!is_array($frame)) continue;
      $s .= "#$i " .
        (isset($frame['file']) ? $frame['file'] : "") . "(" .
        (isset($frame['line']) ? $frame['line'] : "") . "): " .
        (isset($frame['class']) ? $frame['class'] . $frame['type'] : "") .
        $frame['function'] . "()\n";
      $i++;
    }
    $s .= "#$i {main}";
    return $s;
  }

  /* Overrideable */
  // formated string for display
  function __toString() {
    return "exception '" . get_class($this) . "' with message '" .
      $this->getMessage() . "' in " . $this->getFile() . ":" .
      $this->getLine() . "\nStack trace:\n" . $this->getTraceAsString();
  }

  /**
   * Derived classes may override the methods below if different behavior
   * for initializing the trace is desired
   */
  protected function initTrace() {
    $this->trace = debug_backtrace(static::getTraceOptions());
    // Remove top stack frames up to and including Exception::__init__,
    // set the 'file' and 'line' properties appropriately
    while (!empty($this->trace)) {
      $top = array_shift($this->trace);
      if (isset($top['class']) && isset($top['function']) &&
          strcasecmp($top['class'], 'exception') === 0 &&
          strcasecmp($top['function'], '__init__') === 0) {
        if (isset($top['file'])) $this->file = $top['file'];
        if (isset($top['line'])) $this->line = $top['line'];
        return;
      }
    }
  }

  public static function getTraceOptions() {
    return self::$traceOpts;
  }

  public static function setTraceOptions($opts) {
    self::$traceOpts = $opts;
  }
}

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/**
 * ( excerpt from http://php.net/manual/en/class.logicexception.php )
 *
 * Exception thrown if a logic expression is invalid
 *
 */
class LogicException extends Exception {}
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/**
 * ( excerpt from
 * http://php.net/manual/en/class.badfunctioncallexception.php )
 *
 * Exception thrown if a callback refers to an undefined function or if
 * some arguments are missing
 *
 */
  class BadFunctionCallException extends LogicException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.badmethodcallexception.php
 * )
 *
 * Exception thrown if a callback refers to an undefined method or if some
 * arguments are missing
 *
 */
    class BadMethodCallException extends BadFunctionCallException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.domainexception.php )
 *
 * Exception thrown if a value does not adhere to a defined valid data
 * domain
 *
 */
  class DomainException          extends LogicException {}
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/**
 * ( excerpt from
 * http://php.net/manual/en/class.invalidargumentexception.php )
 *
 * Exception thrown if an argument does not match with the expected value
 *
 */
  class InvalidArgumentException extends LogicException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.lengthexception.php )
 *
 * Exception thrown if a length is invalid
 *
 */
  class LengthException          extends LogicException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.outofrangeexception.php )
 *
 * Exception thrown when a value does not match with a range
 *
 */
  class OutOfRangeException      extends LogicException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.runtimeexception.php )
 *
 * Exception thrown if an error which can only be found on runtime occurs
 *
 */
class RuntimeException extends Exception {}
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/**
 * ( excerpt from http://php.net/manual/en/class.outofboundsexception.php )
 *
 * Exception thrown if a value is not a valid key
 *
 */
  class OutOfBoundsException     extends RuntimeException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.overflowexception.php )
 *
 * Exception thrown when you add an element into a full container
 *
 */
  class OverflowException        extends RuntimeException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.rangeexception.php )
 *
 * Exception thrown when an invalid range is given.
 *
 */
  class RangeException           extends RuntimeException {}
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/**
 * ( excerpt from http://php.net/manual/en/class.underflowexception.php )
 *
 * Exception thrown when you try to remove an element of an empty
 * container
 *
 */
  class UnderflowException       extends RuntimeException {}
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/**
 * ( excerpt from
 * http://php.net/manual/en/class.unexpectedvalueexception.php )
 *
 * Exception thrown if a value does not match with a set of values
 *
 */
  class UnexpectedValueException extends RuntimeException {}

  class InvalidOperationException extends RuntimeException {}

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/**
 * ( excerpt from http://php.net/manual/en/class.errorexception.php )
 *
 * An Error Exception.
 *
 */
class ErrorException extends Exception {
  protected $severity;
  public function __construct($message = "", $code = 0, $severity = 0,
                              $filename = null, $lineno = null) {
    parent::__construct($message, $code);
    $this->severity = $severity;
    if ($filename !== null) {
      $this->file = $filename;
    }
    if ($lineno !== null) {
      $this->line = $lineno;
    }
  }

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/**
 * ( excerpt from http://php.net/manual/en/errorexception.getseverity.php )
 *
 * Returns the severity of the exception.
 *
 * @return     mixed   Returns the severity level of the exception.
 */
  final public function getSeverity() { return $this->severity; }
}

class DOMException extends Exception {
  public function __construct($message, $code) {
    parent::__construct($message, $code);
  }
}

class PDOException extends Exception {
  public function __construct() {
  }
}