From 53d02b7e77dfe390fe90cbff0088031491e5929b Mon Sep 17 00:00:00 2001
From: Alexey Kudravtsev <cdr@intellij.com>
Date: Wed, 11 Nov 2009 18:30:02 +0300
Subject: [PATCH] diagnostics

---
 platform/lang-api/src/com/intellij/psi/WalkingState.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/platform/lang-api/src/com/intellij/psi/WalkingState.java b/platform/lang-api/src/com/intellij/psi/WalkingState.java
index 88c4c98b2f29..d62136f48552 100644
--- a/platform/lang-api/src/com/intellij/psi/WalkingState.java
+++ b/platform/lang-api/src/com/intellij/psi/WalkingState.java
@@ -57,8 +57,8 @@ public abstract class WalkingState<T> {
       T parent = myWalker.getParent(element);
       T next = myWalker.getNextSibling(element);
       visit(element);
-      assert myWalker.getNextSibling(element) == next;
-      assert myWalker.getParent(element) == parent;
+      assert myWalker.getNextSibling(element) == next : "Next sibling of the element '"+element+"' changed. Was: "+next+"; Now:"+myWalker.getNextSibling(element)+"; Root:"+root;
+      assert myWalker.getParent(element) == parent : "Parent of the element '"+element+"' changed. Was: "+parent+"; Now:"+myWalker.getParent(element)+"; Root:"+root;
     }
   }