comparison vendor/symfony/var-dumper/Caster/ExceptionCaster.php @ 0:c75dbcec494b

Initial commit from drush-created site

+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * 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\Debug\Exception\SilencedErrorContext;
+use Symfony\Component\VarDumper\Exception\ThrowingCasterException;
+use Symfony\Component\VarDumper\Cloner\Stub;
+
+/**
+ * Casts common Exception classes to array representation.
+ *
+ * @author Nicolas Grekas <[e-mail]>
+ */
+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',
+    );
+
+    private static $framesCache = array();
+
+    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)
+    {
+        $trace = Caster::PREFIX_VIRTUAL.'trace';
+        $prefix = Caster::PREFIX_PROTECTED;
+        $xPrefix = "\0Exception\0";
+
+        if (isset($a[$xPrefix.'previous'], $a[$trace]) && $a[$xPrefix.'previous'] instanceof \Exception) {
+            $b = (array) $a[$xPrefix.'previous'];
+            self::traceUnshift($b[$xPrefix.'trace'], get_class($a[$xPrefix.'previous']), $b[$prefix.'file'], $b[$prefix.'line']);
+            $a[$trace] = new TraceStub($b[$xPrefix.'trace'], false, 0, -count($a[$trace]->value));
+        }
+
+        unset($a[$xPrefix.'previous'], $a[$prefix.'code'], $a[$prefix.'file'], $a[$prefix.'line']);
+
+        return $a;
+    }
+
+    public static function castSilencedErrorContext(SilencedErrorContext $e, array $a, Stub $stub, $isNested)
+    {
+        $sPrefix = "\0".SilencedErrorContext::class."\0";
+
+        if (!isset($a[$s = $sPrefix.'severity'])) {
+            return $a;
+        }
+
+        if (isset(self::$errorTypes[$a[$s]])) {
+            $a[$s] = new ConstStub(self::$errorTypes[$a[$s]], $a[$s]);
+        }
+
+        $trace = array(array(
+            'file' => $a[$sPrefix.'file'],
+            'line' => $a[$sPrefix.'line'],
+        ));
+
+        if (isset($a[$sPrefix.'trace'])) {
+            $trace = array_merge($trace, $a[$sPrefix.'trace']);
+        }
+
+        unset($a[$sPrefix.'file'], $a[$sPrefix.'line'], $a[$sPrefix.'trace']);
+        $a[Caster::PREFIX_VIRTUAL.'trace'] = new TraceStub($trace, self::$traceArgs);
+
+        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;
+        $prefix = Caster::PREFIX_VIRTUAL;
+
+        $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'].'()' : '';
+        $frames[] = array('function' => '');
+        $collapse = false;
+
+        for ($j += $trace->numberingOffset - $i++; isset($frames[$i]); ++$i, --$j) {
+            $f = $frames[$i];
+            $call = isset($f['function']) ? (isset($f['class']) ? $f['class'].$f['type'] : '').$f['function'] : '???';
+
+            $frame = new FrameStub(
+                array(
+                    'object' => isset($f['object']) ? $f['object'] : null,
+                    'class' => isset($f['class']) ? $f['class'] : null,
+                    'type' => isset($f['type']) ? $f['type'] : null,
+                    'function' => isset($f['function']) ? $f['function'] : null,
+                ) + $frames[$i - 1],
+                false,
+                true
+            );
+            $f = self::castFrameStub($frame, array(), $frame, true);
+            if (isset($f[$prefix.'src'])) {
+                foreach ($f[$prefix.'src']->value as $label => $frame) {
+                    if (0 === strpos($label, "\0~collapse=0")) {
+                        if ($collapse) {
+                            $label = substr_replace($label, '1', 11, 1);
+                        } else {
+                            $collapse = true;
+                        }
+                    }
+                    $label = substr_replace($label, "title=Stack level $j.&", 2, 0);
+                }
+                $f = $frames[$i - 1];
+                if ($trace->keepArgs && !empty($f['args']) && $frame instanceof EnumStub) {
+                    $frame->value['arguments'] = new ArgsStub($f['args'], isset($f['function']) ? $f['function'] : null, isset($f['class']) ? $f['class'] : null);
+                }
+            } elseif ('???' !== $lastCall) {
+                $label = new ClassStub($lastCall);
+                if (isset($label->attr['ellipsis'])) {
+                    $label->attr['ellipsis'] += 2;
+                    $label = substr_replace($prefix, "ellipsis-type=class&ellipsis={$label->attr['ellipsis']}&ellipsis-tail=1&title=Stack level $j.", 2, 0).$label->value.'()';
+                } else {
+                    $label = substr_replace($prefix, "title=Stack level $j.", 2, 0).$label->value.'()';
+                }
+            } else {
+                $label = substr_replace($prefix, "title=Stack level $j.", 2, 0).$lastCall;
+            }
+            $a[substr_replace($label, sprintf('separator=%s&', $frame instanceof EnumStub ? ' ' : ':'), 2, 0)] = $frame;
+
+            $lastCall = $call;
+        }
+        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'])) {
+            $cacheKey = $f;
+            unset($cacheKey['object'], $cacheKey['args']);
+            $cacheKey[] = self::$srcContext;
+            $cacheKey = implode('-', $cacheKey);
+
+            if (isset(self::$framesCache[$cacheKey])) {
+                $a[$prefix.'src'] = self::$framesCache[$cacheKey];
+            } else {
+                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];
+                }
+                $caller = isset($f['function']) ? sprintf('in %s() on line %d', (isset($f['class']) ? $f['class'].$f['type'] : '').$f['function'], $f['line']) : null;
+                $src = $f['line'];
+                $srcKey = $f['file'];
+                $ellipsis = new LinkStub($srcKey, 0);
+                $srcAttr = 'collapse='.(int) $ellipsis->inVendor;
+                $ellipsisTail = isset($ellipsis->attr['ellipsis-tail']) ? $ellipsis->attr['ellipsis-tail'] : 0;
+                $ellipsis = isset($ellipsis->attr['ellipsis']) ? $ellipsis->attr['ellipsis'] : 0;
+
+                if (file_exists($f['file']) && 0 <= self::$srcContext) {
+                    if (!empty($f['class']) && (is_subclass_of($f['class'], 'Twig\Template') || is_subclass_of($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']));
+
+                        $ellipsis = 0;
+                        $templateSrc = method_exists($template, 'getSourceContext') ? $template->getSourceContext()->getCode() : (method_exists($template, 'getSource') ? $template->getSource() : '');
+                        $templateInfo = $template->getDebugInfo();
+                        if (isset($templateInfo[$f['line']])) {
+                            if (!method_exists($template, 'getSourceContext') || !file_exists($templatePath = $template->getSourceContext()->getPath())) {
+                                $templatePath = null;
+                            }
+                            if ($templateSrc) {
+                                $src = self::extractSource($templateSrc, $templateInfo[$f['line']], self::$srcContext, $caller, 'twig', $templatePath);
+                                $srcKey = ($templatePath ?: $template->getTemplateName()).':'.$templateInfo[$f['line']];
+                            }
+                        }
+                    }
+                    if ($srcKey == $f['file']) {
+                        $src = self::extractSource(file_get_contents($f['file']), $f['line'], self::$srcContext, $caller, 'php', $f['file']);
+                        $srcKey .= ':'.$f['line'];
+                        if ($ellipsis) {
+                            $ellipsis += 1 + strlen($f['line']);
+                        }
+                    }
+                    $srcAttr .= '&separator= ';
+                } else {
+                    $srcAttr .= '&separator=:';
+                }
+                $srcAttr .= $ellipsis ? '&ellipsis-type=path&ellipsis='.$ellipsis.'&ellipsis-tail='.$ellipsisTail : '';
+                self::$framesCache[$cacheKey] = $a[$prefix.'src'] = new EnumStub(array("\0~$srcAttr\0$srcKey" => $src));
+            }
+        }
+
+        unset($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 ($frame->keepArgs && !empty($f['args'])) {
+            $a[$prefix.'arguments'] = new ArgsStub($f['args'], $f['function'], $f['class']);
+        }
+
+        return $a;
+    }
+
+    private static function filterExceptionArray($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) && $trace) {
+            if (isset($a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line'])) {
+                self::traceUnshift($trace, $xClass, $a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line']);
+            }
+            $a[Caster::PREFIX_VIRTUAL.'trace'] = new TraceStub($trace, self::$traceArgs);
+        }
+        if (empty($a[$xPrefix.'previous'])) {
+            unset($a[$xPrefix.'previous']);
+        }
+        unset($a[$xPrefix.'string'], $a[Caster::PREFIX_DYNAMIC.'xdebug_message'], $a[Caster::PREFIX_DYNAMIC.'__destructorException']);
+
+        if (isset($a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line'])) {
+            $a[Caster::PREFIX_PROTECTED.'file'] = new LinkStub($a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line']);
+        }
+
+        return $a;
+    }
+
+    private static function traceUnshift(&$trace, $class, $file, $line)
+    {
+        if (isset($trace[0]['file'], $trace[0]['line']) && $trace[0]['file'] === $file && $trace[0]['line'] === $line) {
+            return;
+        }
+        array_unshift($trace, array(
+            'function' => $class ? 'new '.$class : null,
+            'file' => $file,
+            'line' => $line,
+        ));
+    }
+
+    private static function extractSource($srcLines, $line, $srcContext, $title, $lang, $file = null)
+    {
+        $srcLines = explode("\n", $srcLines);
+        $src = array();
+
+        for ($i = $line - 1 - $srcContext; $i <= $line - 1 + $srcContext; ++$i) {
+            $src[] = (isset($srcLines[$i]) ? $srcLines[$i] : '')."\n";
+        }
+
+        $srcLines = array();
+        $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 !== $pad);
+
+        --$ltrim;
+
+        foreach ($src as $i => $c) {
+            if ($ltrim) {
+                $c = isset($c[$ltrim]) && "\r" !== $c[$ltrim] ? substr($c, $ltrim) : ltrim($c, " \t");
+            }
+            $c = substr($c, 0, -1);
+            if ($i !== $srcContext) {
+                $c = new ConstStub('default', $c);
+            } else {
+                $c = new ConstStub($c, $title);
+                if (null !== $file) {
+                    $c->attr['file'] = $file;
+                    $c->attr['line'] = $line;
+                }
+            }
+            $c->attr['lang'] = $lang;
+            $srcLines[sprintf("\0~separator=› &%d\0", $i + $line - $srcContext)] = $c;
+        }
+
+        return new EnumStub($srcLines);
+    }
+}