From c45c2c289df9b55f1dcfd2133a56f21d7f66fd75 Mon Sep 17 00:00:00 2001
From: Ulf Hermann <ulf.hermann@theqtcompany.com>
Date: Tue, 14 Apr 2015 18:43:42 +0200
Subject: [PATCH] Timeline: assert that render state is empty when we build
 node tree

Change-Id: If1ea56b5a885d17a38ab0cab29f7700b485a9b82
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
---
 src/libs/timeline/timelinerenderstate.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libs/timeline/timelinerenderstate.cpp b/src/libs/timeline/timelinerenderstate.cpp
index 75238660729..725946def7a 100644
--- a/src/libs/timeline/timelinerenderstate.cpp
+++ b/src/libs/timeline/timelinerenderstate.cpp
@@ -29,6 +29,7 @@
 ****************************************************************************/
 
 #include "timelinerenderstate_p.h"
+#include <utils/qtcassert.h>
 
 namespace Timeline {
 
@@ -139,6 +140,8 @@ void TimelineRenderState::assembleNodeTree(const TimelineModel *model, int defau
                                            int defaultRowOffset)
 {
     Q_D(TimelineRenderState);
+    QTC_ASSERT(isEmpty(), return);
+
     for (int pass = 0; pass < d->passes.length(); ++pass) {
         const TimelineRenderPass::State *passState = d->passes[pass];
         if (!passState)