CodeExplorer

getDebugInfo example

while (++$i < $this->limit) {
                    if (isset($trace[$i]['function'], $trace[$i]['file']) && empty($trace[$i]['class']) && !str_starts_with($trace[$i]['function'], 'call_user_func')) {
                        $file = $trace[$i]['file'];
                        $line = $trace[$i]['line'];

                        break;
                    } elseif (isset($trace[$i]['object']) && $trace[$i]['object'] instanceof Template) {
                        $template = $trace[$i]['object'];
                        $name = $template->getTemplateName();
                        $src = method_exists($template, 'getSourceContext') ? $template->getSourceContext()->getCode() : (method_exists($template, 'getSource') ? $template->getSource() : false);
                        $info = $template->getDebugInfo();
                        if (isset($info[$trace[$i - 1]['line']])) {
                            $line = $info[$trace[$i - 1]['line']];
                            $file = method_exists($template, 'getSourceContext') ? $template->getSourceContext()->getPath() : null;

                            if ($src) {
                                $src = explode("\n", $src);
                                $fileExcerpt = [];

                                for ($i = max($line - 3, 1), $max = min($line + 3, \count($src)); $i <= $max; ++$i) {
                                    $fileExcerpt[] = '<li'.($i === $line ? ' class="selected"' : '').'><code>'.$this->htmlEncode($src[$i - 1]).'</code></li>';
                                }

if (is_file($f['file']) && 0 <= self::$srcContext) {
                    if (!empty($f['class']) && (is_subclass_of($f['class'], 'Twig\Template') || is_subclass_of($f['class'], 'Twig_Template')) && method_exists($f['class'], 'getDebugInfo')) {
                        $template = null;
                        if (isset($f['object'])) {
                            $template = $f['object'];
                        } elseif ((new \ReflectionClass($f['class']))->isInstantiable()) {
                            $template = unserialize(sprintf('O:%d:"%s":0:{}', \strlen($f['class']), $f['class']));
                        }
                        if (null !== $template) {
                            $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') || !is_file($templatePath = $template->getSourceContext()->getPath())) {
                                    $templatePath = null;
                                }
                                if ($templateSrc) {
                                    $src = self::extractSource($templateSrc, $templateInfo[$f['line']], self::$srcContext, 'twig', $templatePath, $f);
                                    $srcKey = ($templatePath ?: $template->getTemplateName()).':'.$templateInfo[$f['line']];
                                }
                            }
                        }
                    }

        while ($e = array_pop($exceptions)) {
            $traces = $e->getTrace();
            array_unshift($traces, ['file' => $e->getFile(), 'line' => $e->getLine()]);

            while ($trace = array_shift($traces)) {
                if (!isset($trace['file']) || !isset($trace['line']) || $file != $trace['file']) {
                    continue;
                }

                foreach ($template->getDebugInfo() as $codeLine => $templateLine) {
                    if ($codeLine <= $trace['line']) {
                        // update template line                         $this->lineno = $templateLine;

                        return;
                    }
                }
            }
        }
    }
}

->write(sprintf("return %s;\n", $traitable ? 'true' : 'false'))
            ->outdent()
            ->write("}\n\n")
        ;
    }

    protected function compileDebugInfo(Compiler $compiler)
    {
        $compiler
            ->write("public function getDebugInfo()\n", "{\n")
            ->indent()
            ->write(sprintf("return %s;\n", str_replace("\n", '', var_export(array_reverse($compiler->getDebugInfo(), true), true))))
            ->outdent()
            ->write("}\n\n")
        ;
    }

    protected function compileGetSourceContext(Compiler $compiler)
    {
        $compiler
            ->write("public function getSourceContext()\n", "{\n")
            ->indent()
            ->write('return new Source(')