test-inspect: handle special case iter==NULL

GtkTreeView has this special case that iter==NULL means the root node. Reported-by: Dibyendu Majumdar <[email protected]> Signed-off-by: Christopher Li <[email protected]>
illumos · Aug 11, 2017 · 38f3ca6 · 38f3ca6
1 parent 817082c
commit 38f3ca6
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/ast-model.c b/ast-model.c
@@ -401,7 +401,8 @@ static gint
 ast_iter_n_children (GtkTreeModel *tree_model,
                           GtkTreeIter  *iter)
 {
-	AstNode  *node = iter->user_data;
+	AstNode  *node = iter ? iter->user_data
+				: AST_NODE(tree_model);
 
 	inspect_child_node(node);
 	return node->childnodes->len;