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system/ThirdParty/Kint/Parser/IteratorPlugin.php

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+<?php
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013 Jonathan Vollebregt (jnvsor@gmail.com), Rokas Šleinius (raveren@gmail.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+namespace Kint\Parser;
+
+use Kint\Zval\Representation\Representation;
+use Kint\Zval\Value;
+use Traversable;
+
+class IteratorPlugin extends Plugin
+{
+    /**
+     * List of classes and interfaces to blacklist.
+     *
+     * Certain classes (Such as PDOStatement) irreversibly lose information
+     * when traversed. Others are just huge. Either way, put them in here
+     * and you won't have to worry about them being parsed.
+     *
+     * @var array
+     */
+    public static $blacklist = [
+        'DOMNamedNodeMap',
+        'DOMNodeList',
+        'mysqli_result',
+        'PDOStatement',
+        'SplFileObject',
+    ];
+
+    public function getTypes()
+    {
+        return ['object'];
+    }
+
+    public function getTriggers()
+    {
+        return Parser::TRIGGER_SUCCESS;
+    }
+
+    public function parse(&$var, Value &$o, $trigger)
+    {
+        if (!$var instanceof Traversable) {
+            return;
+        }
+
+        foreach (self::$blacklist as $class) {
+            if ($var instanceof $class) {
+                $b = new Value();
+                $b->name = $class.' Iterator Contents';
+                $b->access_path = 'iterator_to_array('.$o->access_path.', true)';
+                $b->depth = $o->depth + 1;
+                $b->hints[] = 'blacklist';
+
+                $r = new Representation('Iterator');
+                $r->contents = [$b];
+
+                $o->addRepresentation($r);
+
+                return;
+            }
+        }
+
+        $data = \iterator_to_array($var);
+
+        $base_obj = new Value();
+        $base_obj->depth = $o->depth;
+
+        if ($o->access_path) {
+            $base_obj->access_path = 'iterator_to_array('.$o->access_path.')';
+        }
+
+        $r = new Representation('Iterator');
+        $r->contents = $this->parser->parse($data, $base_obj);
+        $r->contents = $r->contents->value->contents;
+
+        $primary = $o->getRepresentations();
+        $primary = \reset($primary);
+        if ($primary && $primary === $o->value && [] === $primary->contents) {
+            $o->addRepresentation($r, 0);
+        } else {
+            $o->addRepresentation($r);
+        }
+    }
+}