fix VisitVariable

Author: chengduoZH

paddle/fluid/framework/details/broadcast_op_handle.h

@@ -29,9 +29,7 @@ namespace framework {
 namespace details {
 
 struct BroadcastOpHandle : public OpHandleBase {
-  const std::vector<Scope *> &local_scopes_;
-  const std::vector<platform::Place> &places_;
-
+ public:
   BroadcastOpHandle(const std::vector<Scope *> &local_scopes,
                     const std::vector<platform::Place> &places);
 
@@ -41,10 +39,12 @@ struct BroadcastOpHandle : public OpHandleBase {
 
  protected:
   void RunImpl() override;
-
   void WaitInputVarGenerated(const VarHandle &in_var);
-};
 
+ private:
+  const std::vector<Scope *> &local_scopes_;
+  const std::vector<platform::Place> &places_;
+};
 }  // namespace details
 }  // namespace framework
 }  // namespace paddle

paddle/fluid/framework/details/variable_visitor.cc

@@ -18,22 +18,22 @@ namespace paddle {
 namespace framework {
 namespace details {
 template <typename Func>
-static void VisitVariable(Variable* var, Func func) {
+static void VisitVariable(Variable* var, Func* func) {
   if (var->IsType<LoDTensor>()) {
-    func(var->GetMutable<LoDTensor>());
+    (*func)(var->GetMutable<LoDTensor>());
   } else if (var->IsType<SelectedRows>()) {
-    func(var->GetMutable<SelectedRows>());
+    (*func)(var->GetMutable<SelectedRows>());
   } else {
     PADDLE_THROW("Not supported type %s", var->Type().name());
   }
 }
 
 template <typename Func>
-static void VisitVariable(const Variable& var, Func func) {
+static void VisitVariable(const Variable& var, Func* func) {
   if (var.IsType<LoDTensor>()) {
-    func(var.Get<LoDTensor>());
+    (*func)(var.Get<LoDTensor>());
   } else if (var.IsType<SelectedRows>()) {
-    func(var.Get<SelectedRows>());
+    (*func)(var.Get<SelectedRows>());
   } else {
     PADDLE_THROW("Not supported type %s", var.Type().name());
   }
@@ -56,7 +56,7 @@ struct TensorVisitor {
 
 Tensor& VariableVisitor::GetMutableTensor(Variable* var) {
   TensorVisitor vistor;
-  VisitVariable(var, vistor);
+  VisitVariable(var, &vistor);
   return *vistor.result_;
 }
 
@@ -85,7 +85,7 @@ struct ShareDimsAndLoDVisitor {
 
 void VariableVisitor::ShareDimsAndLoD(const Variable& src, Variable* trg) {
   ShareDimsAndLoDVisitor visitor{trg};
-  VisitVariable(src, visitor);
+  VisitVariable(src, &visitor);
 }
 
 }  // namespace details