toGVariant returns NULL if the input vector is empty

Change-Id: Ie2c3e45e2286a6d41294bae431c095edf41428e5
Signed-off-by: Mu-Woong Lee <muwoong.lee@samsung.com>

diff --git a/src/shared/Tuple.cpp b/src/shared/Tuple.cpp
index 06f1b52..aea1050 100644 (file)
--- a/src/shared/Tuple.cpp
+++ b/src/shared/Tuple.cpp
@@ -116,6 +116,8 @@ GVariant* Tuple::toGVariant(Tuple& tuple)
 
 GVariant* Tuple::toGVariant(std::vector<Tuple*>& tuples)
 {
+       IF_FAIL_RETURN_TAG(!tuples.empty(), NULL, _W, "Empty");
+
        GVariantBuilder builder;
        g_variant_builder_init(&builder, G_VARIANT_TYPE_ARRAY);