From 8b2df20b95cc11c6259674ee728aff0a716ca58e Mon Sep 17 00:00:00 2001
From: Frederik Bosch <f.bosch@genkgo.nl>
Date: Tue, 11 Aug 2015 11:51:06 +0200
Subject: [PATCH] FIX IntrospectionProcessor: E_NOTICE

Recent merge of #608 misses check whether the trace exists at all at the specific index, leading to undefined offset.

```
E_NOTICE: Undefined offset: 3
```

And because the while statement became unreadable (and too long), I moved it into a separate method.
---
 src/Monolog/Processor/IntrospectionProcessor.php | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/Monolog/Processor/IntrospectionProcessor.php b/src/Monolog/Processor/IntrospectionProcessor.php
index afc9be9e..4912cd70 100644
--- a/src/Monolog/Processor/IntrospectionProcessor.php
+++ b/src/Monolog/Processor/IntrospectionProcessor.php
@@ -61,7 +61,7 @@ class IntrospectionProcessor
 
         $i = 0;
 
-        while (isset($trace[$i]['class']) || in_array($trace[$i]['function'], $this->skipFunctions)) {
+        while ($this->isTraceClassOrNotSkippedFunction($trace, $i)) {
             if (isset($trace[$i]['class'])) {
                 foreach ($this->skipClassesPartials as $part) {
                     if (strpos($trace[$i]['class'], $part) !== false) {
@@ -90,4 +90,13 @@ class IntrospectionProcessor
 
         return $record;
     }
+
+    private function isTraceClassOrNotSkippedFunction ($trace, $index)
+    {
+        if (isset($trace[$index]) === false) {
+            return false;
+        }
+
+        return isset($trace[$index]['class']) || in_array($trace[$index]['function'], $this->skipFunctions);
+    }
 }