Return empty QString when no file was available.

Fixes assertion in ModelTest.

diff --git a/gui/model.cpp b/gui/model.cpp
index 57d353b..090d287 100644 (file)
--- a/gui/model.cpp
+++ b/gui/model.cpp
@@ -189,6 +189,8 @@ QVariant Model::allocationData(const AllocationData& allocation, const IpIndex&
         } else if (ip.fileIndex) {
             auto file = QString::fromStdString(m_data.stringify(ip.fileIndex));
             return file + QLatin1Char(':') + QString::number(ip.line);
+        } else {
+            return QString();
         }
         break;
     }