From 02890ce6fa797214a3ce471624cdb1e73328d832 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=EB=B0=95=EC=A2=85=ED=98=84/=EB=8F=99=EC=9E=91=EC=A0=9C?=
 =?utf8?q?=EC=96=B4Lab=28SR=29/Staff=20Engineer/=EC=82=BC=EC=84=B1?=
 =?utf8?q?=EC=A0=84=EC=9E=90?= <jh1302.park@samsung.com>
Date: Mon, 23 Jul 2018 14:28:46 +0900
Subject: [PATCH] [coco] Record a backing bag for each object (#758)

This commit revises 'Object' class to record a backing bag.

Signed-off-by: Jonghyun Park <jh1302.park@samsung.com>
---
 contrib/coco/core/include/coco/IR/Object.h | 12 ++++++++++++
 contrib/coco/core/src/IR/Object.cpp        | 17 ++++++++++++++++-
 contrib/coco/core/src/IR/Object.test.cpp   | 22 ++++++++++++++++++++++
 3 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 contrib/coco/core/src/IR/Object.test.cpp

diff --git a/contrib/coco/core/include/coco/IR/Object.h b/contrib/coco/core/include/coco/IR/Object.h
index e678e05..521dc50 100644
--- a/contrib/coco/core/include/coco/IR/Object.h
+++ b/contrib/coco/core/include/coco/IR/Object.h
@@ -1,6 +1,8 @@
 #ifndef __COCO_IR_OBJECT_H__
 #define __COCO_IR_OBJECT_H__
 
+#include "coco/IR/Bag.h"
+
 namespace coco
 {
 
@@ -10,7 +12,17 @@ namespace coco
 class Object
 {
 public:
+  Object();
+
+public:
   virtual ~Object() = default;
+
+private:
+  coco::Bag *_bag;
+
+public:
+  coco::Bag *bag(void) const { return _bag; }
+  void bag(coco::Bag *bag);
 };
 
 } // namespace coco
diff --git a/contrib/coco/core/src/IR/Object.cpp b/contrib/coco/core/src/IR/Object.cpp
index c83a9ec..8c3f864 100644
--- a/contrib/coco/core/src/IR/Object.cpp
+++ b/contrib/coco/core/src/IR/Object.cpp
@@ -1,3 +1,18 @@
 #include "coco/IR/Object.h"
 
-// NOTE Do NOT delete this file; this file checks the completeness of 'Object.h'
+namespace coco
+{
+
+Object::Object() : _bag{nullptr}
+{
+  // DO NOTHING
+}
+
+void Object::bag(coco::Bag *bag)
+{
+  // TODO Update bag-object relation
+  // Q: Should descendant (such as FeatureObject) be aware of bag changes?
+  _bag = bag;
+}
+
+} // namespace coco
diff --git a/contrib/coco/core/src/IR/Object.test.cpp b/contrib/coco/core/src/IR/Object.test.cpp
new file mode 100644
index 0000000..8d02e77
--- /dev/null
+++ b/contrib/coco/core/src/IR/Object.test.cpp
@@ -0,0 +1,22 @@
+#include "coco/IR/Object.h"
+
+#include <gtest/gtest.h>
+
+TEST(IR_OBJECT, ctor)
+{
+  coco::Object obj{};
+
+  // Newly created object should not have a backing bag
+  ASSERT_EQ(obj.bag(), nullptr);
+}
+
+TEST(IR_OBJECT, bag_update)
+{
+  coco::Bag bag{1};
+  coco::Object obj{};
+
+  obj.bag(&bag);
+
+  // 'bag(Bag *)' should affect the return of 'bag(void)'
+  ASSERT_EQ(obj.bag(), &bag);
+}
-- 
2.7.4