[coco] Add comment of Bag Input Output (#2846)

* [coco] Add comment of Bag Input Output

This will add explanation comment for input and output attributes

Signed-off-by: SaeHie Park <saehie.park@samsung.com>
* apply comment

diff --git a/contrib/coco/core/include/coco/IR/Bag.h b/contrib/coco/core/include/coco/IR/Bag.h
index aa5e5dd..756204a 100644 (file)
--- a/contrib/coco/core/include/coco/IR/Bag.h
+++ b/contrib/coco/core/include/coco/IR/Bag.h
@@ -90,7 +90,9 @@ public:
   const UpdateSet *updates(void) const;
 
 public:
+  // @brief Return a valid pointer if this bag is marked as an input of the model
   Input *input(void) const { return _input; }
+  // @brief Return a valid pointer if this bag is marked as an output of the model
   Output *output(void) const { return _output; }
 
 public: