244 lines
8.9 KiB
PHP
244 lines
8.9 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Component\VarDumper\Caster;
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use Symfony\Component\VarDumper\Exception\ThrowingCasterException;
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use Symfony\Component\VarDumper\Cloner\Stub;
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/**
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* Casts common Exception classes to array representation.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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class ExceptionCaster
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{
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public static $srcContext = 1;
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public static $traceArgs = true;
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public static $errorTypes = array(
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E_DEPRECATED => 'E_DEPRECATED',
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E_USER_DEPRECATED => 'E_USER_DEPRECATED',
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E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR',
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E_ERROR => 'E_ERROR',
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E_WARNING => 'E_WARNING',
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E_PARSE => 'E_PARSE',
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E_NOTICE => 'E_NOTICE',
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E_CORE_ERROR => 'E_CORE_ERROR',
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E_CORE_WARNING => 'E_CORE_WARNING',
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E_COMPILE_ERROR => 'E_COMPILE_ERROR',
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E_COMPILE_WARNING => 'E_COMPILE_WARNING',
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E_USER_ERROR => 'E_USER_ERROR',
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E_USER_WARNING => 'E_USER_WARNING',
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E_USER_NOTICE => 'E_USER_NOTICE',
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E_STRICT => 'E_STRICT',
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);
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public static function castError(\Error $e, array $a, Stub $stub, $isNested, $filter = 0)
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{
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return self::filterExceptionArray($stub->class, $a, "\0Error\0", $filter);
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}
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public static function castException(\Exception $e, array $a, Stub $stub, $isNested, $filter = 0)
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{
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return self::filterExceptionArray($stub->class, $a, "\0Exception\0", $filter);
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}
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public static function castErrorException(\ErrorException $e, array $a, Stub $stub, $isNested)
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{
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if (isset($a[$s = Caster::PREFIX_PROTECTED.'severity'], self::$errorTypes[$a[$s]])) {
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$a[$s] = new ConstStub(self::$errorTypes[$a[$s]], $a[$s]);
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}
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return $a;
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}
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public static function castThrowingCasterException(ThrowingCasterException $e, array $a, Stub $stub, $isNested)
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{
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$prefix = Caster::PREFIX_PROTECTED;
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$xPrefix = "\0Exception\0";
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if (isset($a[$xPrefix.'previous'], $a[$xPrefix.'trace'])) {
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$b = (array) $a[$xPrefix.'previous'];
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array_unshift($b[$xPrefix.'trace'], array(
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'function' => 'new '.get_class($a[$xPrefix.'previous']),
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'file' => $b[$prefix.'file'],
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'line' => $b[$prefix.'line'],
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));
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$a[$xPrefix.'trace'] = new TraceStub($b[$xPrefix.'trace'], false, 0, -1 - count($a[$xPrefix.'trace']->value));
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}
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unset($a[$xPrefix.'previous'], $a[$prefix.'code'], $a[$prefix.'file'], $a[$prefix.'line']);
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return $a;
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}
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public static function castTraceStub(TraceStub $trace, array $a, Stub $stub, $isNested)
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{
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if (!$isNested) {
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return $a;
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}
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$stub->class = '';
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$stub->handle = 0;
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$frames = $trace->value;
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$a = array();
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$j = count($frames);
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if (0 > $i = $trace->sliceOffset) {
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$i = max(0, $j + $i);
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}
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if (!isset($trace->value[$i])) {
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return array();
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}
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$lastCall = isset($frames[$i]['function']) ? ' ==> '.(isset($frames[$i]['class']) ? $frames[0]['class'].$frames[$i]['type'] : '').$frames[$i]['function'].'()' : '';
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for ($j += $trace->numberingOffset - $i++; isset($frames[$i]); ++$i, --$j) {
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$call = isset($frames[$i]['function']) ? (isset($frames[$i]['class']) ? $frames[$i]['class'].$frames[$i]['type'] : '').$frames[$i]['function'].'()' : '???';
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$a[Caster::PREFIX_VIRTUAL.$j.'. '.$call.$lastCall] = new FrameStub(
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array(
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'object' => isset($frames[$i]['object']) ? $frames[$i]['object'] : null,
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'class' => isset($frames[$i]['class']) ? $frames[$i]['class'] : null,
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'type' => isset($frames[$i]['type']) ? $frames[$i]['type'] : null,
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'function' => isset($frames[$i]['function']) ? $frames[$i]['function'] : null,
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) + $frames[$i - 1],
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$trace->keepArgs,
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true
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);
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$lastCall = ' ==> '.$call;
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}
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$a[Caster::PREFIX_VIRTUAL.$j.'. {main}'.$lastCall] = new FrameStub(
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array(
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'object' => null,
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'class' => null,
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'type' => null,
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'function' => '{main}',
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) + $frames[$i - 1],
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$trace->keepArgs,
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true
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);
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if (null !== $trace->sliceLength) {
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$a = array_slice($a, 0, $trace->sliceLength, true);
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}
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return $a;
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}
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public static function castFrameStub(FrameStub $frame, array $a, Stub $stub, $isNested)
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{
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if (!$isNested) {
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return $a;
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}
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$f = $frame->value;
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$prefix = Caster::PREFIX_VIRTUAL;
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if (isset($f['file'], $f['line'])) {
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if (preg_match('/\((\d+)\)(?:\([\da-f]{32}\))? : (?:eval\(\)\'d code|runtime-created function)$/', $f['file'], $match)) {
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$f['file'] = substr($f['file'], 0, -strlen($match[0]));
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$f['line'] = (int) $match[1];
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}
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if (file_exists($f['file']) && 0 <= self::$srcContext) {
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$src[$f['file'].':'.$f['line']] = self::extractSource(explode("\n", file_get_contents($f['file'])), $f['line'], self::$srcContext);
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if (!empty($f['class']) && is_subclass_of($f['class'], 'Twig_Template') && method_exists($f['class'], 'getDebugInfo')) {
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$template = isset($f['object']) ? $f['object'] : new $f['class'](new \Twig_Environment(new \Twig_Loader_Filesystem()));
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try {
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$templateName = $template->getTemplateName();
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$templateSrc = explode("\n", method_exists($template, 'getSource') ? $template->getSource() : $template->getEnvironment()->getLoader()->getSource($templateName));
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$templateInfo = $template->getDebugInfo();
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if (isset($templateInfo[$f['line']])) {
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$src[$templateName.':'.$templateInfo[$f['line']]] = self::extractSource($templateSrc, $templateInfo[$f['line']], self::$srcContext);
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}
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} catch (\Twig_Error_Loader $e) {
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}
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}
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} else {
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$src[$f['file']] = $f['line'];
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}
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$a[$prefix.'src'] = new EnumStub($src);
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}
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unset($a[$prefix.'args'], $a[$prefix.'line'], $a[$prefix.'file']);
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if ($frame->inTraceStub) {
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unset($a[$prefix.'class'], $a[$prefix.'type'], $a[$prefix.'function']);
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}
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foreach ($a as $k => $v) {
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if (!$v) {
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unset($a[$k]);
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}
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}
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if ($frame->keepArgs && isset($f['args'])) {
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$a[$prefix.'args'] = $f['args'];
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}
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return $a;
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}
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private static function filterExceptionArray($xClass, array $a, $xPrefix, $filter)
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{
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if (isset($a[$xPrefix.'trace'])) {
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$trace = $a[$xPrefix.'trace'];
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unset($a[$xPrefix.'trace']); // Ensures the trace is always last
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} else {
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$trace = array();
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}
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if (!($filter & Caster::EXCLUDE_VERBOSE)) {
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array_unshift($trace, array(
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'function' => $xClass ? 'new '.$xClass : null,
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'file' => $a[Caster::PREFIX_PROTECTED.'file'],
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'line' => $a[Caster::PREFIX_PROTECTED.'line'],
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));
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$a[$xPrefix.'trace'] = new TraceStub($trace, self::$traceArgs);
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}
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if (empty($a[$xPrefix.'previous'])) {
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unset($a[$xPrefix.'previous']);
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}
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unset($a[$xPrefix.'string'], $a[Caster::PREFIX_DYNAMIC.'xdebug_message'], $a[Caster::PREFIX_DYNAMIC.'__destructorException']);
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return $a;
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}
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private static function extractSource(array $srcArray, $line, $srcContext)
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{
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$src = array();
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for ($i = $line - 1 - $srcContext; $i <= $line - 1 + $srcContext; ++$i) {
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$src[] = (isset($srcArray[$i]) ? $srcArray[$i] : '')."\n";
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}
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$ltrim = 0;
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do {
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$pad = null;
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for ($i = $srcContext << 1; $i >= 0; --$i) {
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if (isset($src[$i][$ltrim]) && "\r" !== ($c = $src[$i][$ltrim]) && "\n" !== $c) {
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if (null === $pad) {
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$pad = $c;
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}
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if ((' ' !== $c && "\t" !== $c) || $pad !== $c) {
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break;
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}
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}
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}
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++$ltrim;
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} while (0 > $i && null !== $pad);
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if (--$ltrim) {
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foreach ($src as $i => $line) {
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$src[$i] = isset($line[$ltrim]) && "\r" !== $line[$ltrim] ? substr($line, $ltrim) : ltrim($line, " \t");
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}
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}
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return implode('', $src);
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}
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}
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