--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\VarDumper\Caster;
+
+use Symfony\Component\VarDumper\Exception\ThrowingCasterException;
+use Symfony\Component\VarDumper\Cloner\Stub;
+
+/**
+ * Casts common Exception classes to array representation.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ExceptionCaster
+{
+ public static $srcContext = 1;
+ public static $traceArgs = true;
+ public static $errorTypes = array(
+ E_DEPRECATED => 'E_DEPRECATED',
+ E_USER_DEPRECATED => 'E_USER_DEPRECATED',
+ E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR',
+ E_ERROR => 'E_ERROR',
+ E_WARNING => 'E_WARNING',
+ E_PARSE => 'E_PARSE',
+ E_NOTICE => 'E_NOTICE',
+ E_CORE_ERROR => 'E_CORE_ERROR',
+ E_CORE_WARNING => 'E_CORE_WARNING',
+ E_COMPILE_ERROR => 'E_COMPILE_ERROR',
+ E_COMPILE_WARNING => 'E_COMPILE_WARNING',
+ E_USER_ERROR => 'E_USER_ERROR',
+ E_USER_WARNING => 'E_USER_WARNING',
+ E_USER_NOTICE => 'E_USER_NOTICE',
+ E_STRICT => 'E_STRICT',
+ );
+
+ public static function castError(\Error $e, array $a, Stub $stub, $isNested, $filter = 0)
+ {
+ return self::filterExceptionArray($stub->class, $a, "\0Error\0", $filter);
+ }
+
+ public static function castException(\Exception $e, array $a, Stub $stub, $isNested, $filter = 0)
+ {
+ return self::filterExceptionArray($stub->class, $a, "\0Exception\0", $filter);
+ }
+
+ public static function castErrorException(\ErrorException $e, array $a, Stub $stub, $isNested)
+ {
+ if (isset($a[$s = Caster::PREFIX_PROTECTED.'severity'], self::$errorTypes[$a[$s]])) {
+ $a[$s] = new ConstStub(self::$errorTypes[$a[$s]], $a[$s]);
+ }
+
+ return $a;
+ }
+
+ public static function castThrowingCasterException(ThrowingCasterException $e, array $a, Stub $stub, $isNested)
+ {
+ $prefix = Caster::PREFIX_PROTECTED;
+ $xPrefix = "\0Exception\0";
+
+ if (isset($a[$xPrefix.'previous'], $a[$xPrefix.'trace']) && $a[$xPrefix.'previous'] instanceof \Exception) {
+ $b = (array) $a[$xPrefix.'previous'];
+ array_unshift($b[$xPrefix.'trace'], array(
+ 'function' => 'new '.get_class($a[$xPrefix.'previous']),
+ 'file' => $b[$prefix.'file'],
+ 'line' => $b[$prefix.'line'],
+ ));
+ $a[$xPrefix.'trace'] = new TraceStub($b[$xPrefix.'trace'], false, 0, -1 - count($a[$xPrefix.'trace']->value));
+ }
+
+ unset($a[$xPrefix.'previous'], $a[$prefix.'code'], $a[$prefix.'file'], $a[$prefix.'line']);
+
+ return $a;
+ }
+
+ public static function castTraceStub(TraceStub $trace, array $a, Stub $stub, $isNested)
+ {
+ if (!$isNested) {
+ return $a;
+ }
+ $stub->class = '';
+ $stub->handle = 0;
+ $frames = $trace->value;
+
+ $a = array();
+ $j = count($frames);
+ if (0 > $i = $trace->sliceOffset) {
+ $i = max(0, $j + $i);
+ }
+ if (!isset($trace->value[$i])) {
+ return array();
+ }
+ $lastCall = isset($frames[$i]['function']) ? ' ==> '.(isset($frames[$i]['class']) ? $frames[0]['class'].$frames[$i]['type'] : '').$frames[$i]['function'].'()' : '';
+
+ for ($j += $trace->numberingOffset - $i++; isset($frames[$i]); ++$i, --$j) {
+ $call = isset($frames[$i]['function']) ? (isset($frames[$i]['class']) ? $frames[$i]['class'].$frames[$i]['type'] : '').$frames[$i]['function'].'()' : '???';
+
+ $a[Caster::PREFIX_VIRTUAL.$j.'. '.$call.$lastCall] = new FrameStub(
+ array(
+ 'object' => isset($frames[$i]['object']) ? $frames[$i]['object'] : null,
+ 'class' => isset($frames[$i]['class']) ? $frames[$i]['class'] : null,
+ 'type' => isset($frames[$i]['type']) ? $frames[$i]['type'] : null,
+ 'function' => isset($frames[$i]['function']) ? $frames[$i]['function'] : null,
+ ) + $frames[$i - 1],
+ $trace->keepArgs,
+ true
+ );
+
+ $lastCall = ' ==> '.$call;
+ }
+ $a[Caster::PREFIX_VIRTUAL.$j.'. {main}'.$lastCall] = new FrameStub(
+ array(
+ 'object' => null,
+ 'class' => null,
+ 'type' => null,
+ 'function' => '{main}',
+ ) + $frames[$i - 1],
+ $trace->keepArgs,
+ true
+ );
+ if (null !== $trace->sliceLength) {
+ $a = array_slice($a, 0, $trace->sliceLength, true);
+ }
+
+ return $a;
+ }
+
+ public static function castFrameStub(FrameStub $frame, array $a, Stub $stub, $isNested)
+ {
+ if (!$isNested) {
+ return $a;
+ }
+ $f = $frame->value;
+ $prefix = Caster::PREFIX_VIRTUAL;
+
+ if (isset($f['file'], $f['line'])) {
+ if (preg_match('/\((\d+)\)(?:\([\da-f]{32}\))? : (?:eval\(\)\'d code|runtime-created function)$/', $f['file'], $match)) {
+ $f['file'] = substr($f['file'], 0, -strlen($match[0]));
+ $f['line'] = (int) $match[1];
+ }
+ if (file_exists($f['file']) && 0 <= self::$srcContext) {
+ $src[$f['file'].':'.$f['line']] = self::extractSource(explode("\n", file_get_contents($f['file'])), $f['line'], self::$srcContext);
+
+ if (!empty($f['class']) && is_subclass_of($f['class'], 'Twig_Template') && method_exists($f['class'], 'getDebugInfo')) {
+ $template = isset($f['object']) ? $f['object'] : unserialize(sprintf('O:%d:"%s":0:{}', strlen($f['class']), $f['class']));
+
+ $templateName = $template->getTemplateName();
+ $templateSrc = method_exists($template, 'getSourceContext') ? $template->getSourceContext()->getCode() : (method_exists($template, 'getSource') ? $template->getSource() : '');
+ $templateInfo = $template->getDebugInfo();
+ if (isset($templateInfo[$f['line']])) {
+ if (method_exists($template, 'getSourceContext')) {
+ $templateName = $template->getSourceContext()->getPath() ?: $templateName;
+ }
+ if ($templateSrc) {
+ $templateSrc = explode("\n", $templateSrc);
+ $src[$templateName.':'.$templateInfo[$f['line']]] = self::extractSource($templateSrc, $templateInfo[$f['line']], self::$srcContext);
+ } else {
+ $src[$templateName] = $templateInfo[$f['line']];
+ }
+ }
+ }
+ } else {
+ $src[$f['file']] = $f['line'];
+ }
+ $a[$prefix.'src'] = new EnumStub($src);
+ }
+
+ unset($a[$prefix.'args'], $a[$prefix.'line'], $a[$prefix.'file']);
+ if ($frame->inTraceStub) {
+ unset($a[$prefix.'class'], $a[$prefix.'type'], $a[$prefix.'function']);
+ }
+ foreach ($a as $k => $v) {
+ if (!$v) {
+ unset($a[$k]);
+ }
+ }
+ if ($frame->keepArgs && isset($f['args'])) {
+ $a[$prefix.'args'] = $f['args'];
+ }
+
+ return $a;
+ }
+
+ /**
+ * @deprecated since 2.8, to be removed in 3.0. Use the castTraceStub method instead.
+ */
+ public static function filterTrace(&$trace, $dumpArgs, $offset = 0)
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0. Use the castTraceStub method instead.', E_USER_DEPRECATED);
+
+ if (0 > $offset || empty($trace[$offset])) {
+ return $trace = null;
+ }
+
+ $t = $trace[$offset];
+
+ if (empty($t['class']) && isset($t['function'])) {
+ if ('user_error' === $t['function'] || 'trigger_error' === $t['function']) {
+ ++$offset;
+ }
+ }
+
+ if ($offset) {
+ array_splice($trace, 0, $offset);
+ }
+
+ foreach ($trace as &$t) {
+ $t = array(
+ 'call' => (isset($t['class']) ? $t['class'].$t['type'] : '').$t['function'].'()',
+ 'file' => isset($t['line']) ? "{$t['file']}:{$t['line']}" : '',
+ 'args' => &$t['args'],
+ );
+
+ if (!isset($t['args']) || !$dumpArgs) {
+ unset($t['args']);
+ }
+ }
+ }
+
+ private static function filterExceptionArray($xClass, array $a, $xPrefix, $filter)
+ {
+ if (isset($a[$xPrefix.'trace'])) {
+ $trace = $a[$xPrefix.'trace'];
+ unset($a[$xPrefix.'trace']); // Ensures the trace is always last
+ } else {
+ $trace = array();
+ }
+
+ if (!($filter & Caster::EXCLUDE_VERBOSE)) {
+ if (isset($a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line'])) {
+ array_unshift($trace, array(
+ 'function' => $xClass ? 'new '.$xClass : null,
+ 'file' => $a[Caster::PREFIX_PROTECTED.'file'],
+ 'line' => $a[Caster::PREFIX_PROTECTED.'line'],
+ ));
+ }
+ $a[$xPrefix.'trace'] = new TraceStub($trace, self::$traceArgs);
+ }
+ if (empty($a[$xPrefix.'previous'])) {
+ unset($a[$xPrefix.'previous']);
+ }
+ unset($a[$xPrefix.'string'], $a[Caster::PREFIX_DYNAMIC.'xdebug_message'], $a[Caster::PREFIX_DYNAMIC.'__destructorException']);
+
+ return $a;
+ }
+
+ private static function extractSource(array $srcArray, $line, $srcContext)
+ {
+ $src = array();
+
+ for ($i = $line - 1 - $srcContext; $i <= $line - 1 + $srcContext; ++$i) {
+ $src[] = (isset($srcArray[$i]) ? $srcArray[$i] : '')."\n";
+ }
+
+ $ltrim = 0;
+ do {
+ $pad = null;
+ for ($i = $srcContext << 1; $i >= 0; --$i) {
+ if (isset($src[$i][$ltrim]) && "\r" !== ($c = $src[$i][$ltrim]) && "\n" !== $c) {
+ if (null === $pad) {
+ $pad = $c;
+ }
+ if ((' ' !== $c && "\t" !== $c) || $pad !== $c) {
+ break;
+ }
+ }
+ }
+ ++$ltrim;
+ } while (0 > $i && null !== $pad);
+
+ if (--$ltrim) {
+ foreach ($src as $i => $line) {
+ $src[$i] = isset($line[$ltrim]) && "\r" !== $line[$ltrim] ? substr($line, $ltrim) : ltrim($line, " \t");
+ }
+ }
+
+ return implode('', $src);
+ }
+}
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