From ceb87c96649a0ac59624be277e7172ad7a612e44 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=EC=9D=B4=ED=95=9C=EC=A2=85/=EB=8F=99=EC=9E=91=EC=A0=9C?=
 =?utf8?q?=EC=96=B4Lab=28SR=29/Engineer/=EC=82=BC=EC=84=B1=EC=A0=84?=
 =?utf8?q?=EC=9E=90?= <hanjoung.lee@samsung.com>
Date: Mon, 3 Sep 2018 20:28:37 +0900
Subject: [PATCH] [neurun] Use forward declaration from a header (#2557)

Forward declare for the interfaces that are used from
`BackendManger.h`.

Signed-off-by: Hanjoung Lee <hanjoung.lee@samsung.com>
---
 runtimes/neurun/src/internal/BackendManager.cc |  8 ++++++++
 runtimes/neurun/src/internal/BackendManager.h  | 23 ++++++++++++++---------
 2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/runtimes/neurun/src/internal/BackendManager.cc b/runtimes/neurun/src/internal/BackendManager.cc
index bf5821c..292b751 100644
--- a/runtimes/neurun/src/internal/BackendManager.cc
+++ b/runtimes/neurun/src/internal/BackendManager.cc
@@ -12,6 +12,14 @@
 namespace internal
 {
 
+Backend::Backend(const std::shared_ptr<neurun::backend::IBackendInitializer> &backend_initializer,
+                 const std::shared_ptr<neurun::backend::IInitializerGenerator> &initializer_gen,
+                 const std::shared_ptr<neurun::backend::IStageGenerator> &stage_gen)
+    : initializer_gen(initializer_gen), stage_gen(stage_gen)
+{
+  backend_initializer->initialize();
+}
+
 BackendManager::BackendManager(neurun::codegen::Plan &plan) : _plan(plan)
 {
   const auto &operands = _plan.model().operands();
diff --git a/runtimes/neurun/src/internal/BackendManager.h b/runtimes/neurun/src/internal/BackendManager.h
index 99137eb..a5f51db 100644
--- a/runtimes/neurun/src/internal/BackendManager.h
+++ b/runtimes/neurun/src/internal/BackendManager.h
@@ -4,10 +4,19 @@
 #include <memory>
 
 #include "codegen/Plan.h"
-#include "backend/IBackendInitializer.h"
-#include "backend/IInitializerGenerator.h"
-#include "backend/IStageGenerator.h"
-#include "backend/ITensorBuilder.h"
+
+namespace neurun
+{
+namespace backend
+{
+
+struct IBackendInitializer;
+struct IInitializerGenerator;
+struct IStageGenerator;
+struct ITensorBuilder;
+
+} // namespace backend
+} // namespace neurun
 
 namespace internal
 {
@@ -19,11 +28,7 @@ struct Backend
 
   Backend(const std::shared_ptr<neurun::backend::IBackendInitializer> &backend_initializer,
           const std::shared_ptr<neurun::backend::IInitializerGenerator> &initializer_gen,
-          const std::shared_ptr<neurun::backend::IStageGenerator> &stage_gen)
-      : initializer_gen(initializer_gen), stage_gen(stage_gen)
-  {
-    backend_initializer->initialize();
-  }
+          const std::shared_ptr<neurun::backend::IStageGenerator> &stage_gen);
 
   Backend(void) : initializer_gen(nullptr), stage_gen(nullptr)
   {
-- 
2.7.4