From a8211a77d440eb9ba51397df193f416f7843b599 Mon Sep 17 00:00:00 2001
From: Nikolay Krasko <nikolay.krasko@jetbrains.com>
Date: Thu, 21 Sep 2017 15:10:42 +0300
Subject: [PATCH] Fix null-pointer because of nullable elementAt (EA-99963)

 #EA-99963 Fixed
---
 .../idea/debugger/stepping/KotlinSteppingCommandProvider.kt    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinSteppingCommandProvider.kt b/idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinSteppingCommandProvider.kt
index 18bad29ada3..038100fcc8c 100644
--- a/idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinSteppingCommandProvider.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinSteppingCommandProvider.kt
@@ -108,7 +108,8 @@ class KotlinSteppingCommandProvider : JvmSteppingCommandProvider() {
                 val file = sourcePosition.file as? KtFile ?: return null
                 if (sourcePosition.line < 0) return null
 
-                val containingFunction = sourcePosition.elementAt.parents
+                val elementAt = sourcePosition.elementAt ?: return null
+                val containingFunction = elementAt.parents
                                                  .filterIsInstance<KtNamedFunction>()
                                                  .firstOrNull { !it.isLocal } ?: return null