From 9111b31ca7721feaa029c2398741a6f34a2c1361 Mon Sep 17 00:00:00 2001
From: yann300 <yann.levreau@gmail.com>
Date: Mon, 18 May 2015 11:18:01 +0200
Subject: [PATCH] small changes

---
 mix/CodeModel.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mix/CodeModel.cpp b/mix/CodeModel.cpp
index 03ae828e0..b0edb20f9 100644
--- a/mix/CodeModel.cpp
+++ b/mix/CodeModel.cpp
@@ -363,7 +363,10 @@ void CodeModel::gasEstimation(solidity::CompilerStack const& _cs)
 
 QVariantList CodeModel::gasCostByDocumentId(QString const& _documentId) const
 {
-	return m_gasCostsMaps->gasCostsByDocId(_documentId);
+	if (m_gasCostsMaps)
+		return m_gasCostsMaps->gasCostsByDocId(_documentId);
+	else
+		return QVariantList();
 }
 
 void CodeModel::collectContracts(dev::solidity::CompilerStack const& _cs, std::vector<std::string> const& _sourceNames)