From: Agnelo Vaz <agnelo.vaz@samsung.com>
Date: Fri, 27 Jan 2017 17:54:10 +0000 (+0000)
Subject: Enable json tree dump to work with empty arrays
X-Git-Tag: dali_1.2.25~7^2
X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=commitdiff_plain;h=e121ef45809e2585ac40bbf33e472c107a6b2879

Enable json tree dump to work with empty arrays

If the json contains an empty array it would crash as there was no check before dereferencing a pointer.

Below constant section should be added to json to get debug output

  "constants":
  {

    "CONFIG_SCRIPT_LOG_LEVEL":"Verbose",
    "DUMP_TREE":1
  },

Change-Id: I9584fa0c4202ea7907a9235cdfb81264ab3596c6
---

diff --git a/dali-toolkit/internal/builder/tree-node-manipulator.cpp b/dali-toolkit/internal/builder/tree-node-manipulator.cpp
index 4357cb8..9567306 100644
--- a/dali-toolkit/internal/builder/tree-node-manipulator.cpp
+++ b/dali-toolkit/internal/builder/tree-node-manipulator.cpp
@@ -398,7 +398,7 @@ void TreeNodeManipulator::DoWrite(const TreeNode *value, std::ostream& output, i
     {
       bool groupMyChildren = false;
 
-      if( TreeNode::ARRAY == value->GetType() &&
+      if( TreeNode::ARRAY == value->GetType() && value->mFirstChild &&
           ( TreeNode::INTEGER == value->mFirstChild->GetType() ||
             TreeNode::FLOAT   == value->mFirstChild->GetType() ) )
       {