Using linb::any/std::any instead of FunctionConfig

CMakeLists.txt

@@ -64,6 +64,7 @@ include(external/python)    # download, build, install python
 include(external/openblas)  # download, build, install openblas
 include(external/swig)      # download, build, install swig
 include(external/warpctc)   # download, build, install warpctc
+include(external/any)       # download libn::any
 
 include(package)            # set paddle packages
 include(cpplint)            # set paddle c++ style

cmake/external/any.cmake

@@ -0,0 +1,20 @@
+INCLUDE(ExternalProject)
+
+SET(ANY_SOURCE_DIR ${THIRD_PARTY_PATH}/any)
+
+INCLUDE_DIRECTORIES(${ANY_SOURCE_DIR}/src/linb_any)
+
+ExternalProject_Add(
+    linb_any
+    ${EXTERNAL_PROJECT_LOG_ARGS}
+    GIT_REPOSITORY  "https://github.com/thelink2012/any.git"
+    GIT_TAG         "8fef1e93710a0edf8d7658999e284a1142c4c020"
+    PREFIX          ${ANY_SOURCE_DIR}
+    UPDATE_COMMAND  ""
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND     ""
+    INSTALL_COMMAND   ""
+    TEST_COMMAND      ""
+)
+
+add_definitions(-DANY_IMPL_ANY_CAST_MOVEABLE)

paddle/function/Function.cpp

@@ -16,66 +16,6 @@ limitations under the License. */
 
 namespace paddle {
 
-template <>
-size_t FuncConfig::get<size_t>(const std::string& key) const {
-  auto it = valueMap_.find(key);
-  CHECK(it != valueMap_.end()) << "Cannot find value: '" << key << "'";
-  return it->second.s;
-}
-
-template <>
-real FuncConfig::get<real>(const std::string& key) const {
-  auto it = valueMap_.find(key);
-  CHECK(it != valueMap_.end()) << "Cannot find value: '" << key << "'";
-  return it->second.r;
-}
-
-template <>
-int FuncConfig::get<int>(const std::string& key) const {
-  auto it = valueMap_.find(key);
-  CHECK(it != valueMap_.end()) << "Cannot find value: '" << key << "'";
-  return it->second.i;
-}
-
-template <>
-bool FuncConfig::get<bool>(const std::string& key) const {
-  auto it = valueMap_.find(key);
-  CHECK(it != valueMap_.end()) << "Cannot find value: '" << key << "'";
-  return it->second.b;
-}
-
-template <>
-FuncConfig& FuncConfig::set<size_t>(const std::string& key, size_t v) {
-  CHECK_EQ(static_cast<int>(valueMap_.count(key)), 0) << "Duplicated value: "
-                                                      << key;
-  valueMap_[key].s = v;
-  return *this;
-}
-
-template <>
-FuncConfig& FuncConfig::set<real>(const std::string& key, real v) {
-  CHECK_EQ(static_cast<int>(valueMap_.count(key)), 0) << "Duplicated value: "
-                                                      << key;
-  valueMap_[key].r = v;
-  return *this;
-}
-
-template <>
-FuncConfig& FuncConfig::set<int>(const std::string& key, int v) {
-  CHECK_EQ(static_cast<int>(valueMap_.count(key)), 0) << "Duplicated value: "
-                                                      << key;
-  valueMap_[key].i = v;
-  return *this;
-}
-
-template <>
-FuncConfig& FuncConfig::set<bool>(const std::string& key, bool v) {
-  CHECK_EQ(static_cast<int>(valueMap_.count(key)), 0) << "Duplicated value: "
-                                                      << key;
-  valueMap_[key].b = v;
-  return *this;
-}
-
 void BufferArgs::addArg(const Matrix& arg,
                         const TensorShape& shape,
                         ArgType argType) {

paddle/function/Function.h

@@ -18,6 +18,7 @@ limitations under the License. */
 #include <vector>
 #include "BufferArg.h"
 #include "paddle/math/Matrix.h"
+#include "paddle/utils/Any.h"
 #include "paddle/utils/ClassRegistrar.h"
 
 namespace paddle {
@@ -25,25 +26,22 @@ namespace paddle {
 /**
  * Function Configuration.
  * The argument type of Function::init.
- * Follow-up will consider moving this data structure to Proto inside.
  */
 class FuncConfig {
 public:
-  union value {
-    size_t s;
-    real r;
-    int i;
-    bool b;
-  };
-
   template <typename T>
-  T get(const std::string& key) const;
+  T get(const std::string& key) const {
+    return any_cast<T>(valueMap_[key]);
+  }
 
   template <typename T>
-  FuncConfig& set(const std::string& key, T v);
+  FuncConfig& set(const std::string& key, T v) {
+    valueMap_[key] = any(v);
+    return *this;
+  }
 
 protected:
-  std::map<std::string, value> valueMap_;
+  mutable std::unordered_map<std::string, any> valueMap_;
 };
 
 /**

paddle/utils/Any.h

@@ -0,0 +1,33 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#pragma once
+#if __cplusplus > 201402L
+#include <any>
+
+namespace paddle {
+// using std::any for C++ 17
+using std::any;
+using std::any_cast;
+}  // namespace paddle
+
+#else
+#include <any.hpp>
+
+namespace paddle {
+// use linb::any for C++ 11
+using linb::any;
+using linb::any_cast;
+}  // namespace paddle
+#endif