summaryrefslogtreecommitdiff
path: root/compiler/mir/include/mir/Visitor.h
diff options
context:
space:
mode:
Diffstat (limited to 'compiler/mir/include/mir/Visitor.h')
-rw-r--r--compiler/mir/include/mir/Visitor.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/compiler/mir/include/mir/Visitor.h b/compiler/mir/include/mir/Visitor.h
new file mode 100644
index 000000000..fed4c981f
--- /dev/null
+++ b/compiler/mir/include/mir/Visitor.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * 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.
+ */
+
+#ifndef _MIR_VISITOR_H_
+#define _MIR_VISITOR_H_
+
+namespace mir
+{
+
+// Forward declare operations as we don't need anything but references
+namespace ops
+{
+#define HANDLE_OP(OpType, OpClass) class OpClass;
+#include "mir/Operations.inc"
+#undef HANDLE_OP
+} // namespace ops
+
+class Operation;
+
+/**
+ * @brief Interface for visitors
+ * Use in MIR component if you want to enforce to implement visits for all operations
+ */
+class IVisitor
+{
+public:
+#define HANDLE_OP(OpType, OpClass) virtual void visit(ops::OpClass &) = 0;
+#include "Operations.inc"
+#undef HANDLE_OP
+
+ virtual ~IVisitor() = default;
+};
+
+/**
+ * @brief Base visitor with empty fallback function
+ */
+class Visitor : public IVisitor
+{
+public:
+#define HANDLE_OP(OpType, OpClass) void visit(ops::OpClass &) override;
+#include "Operations.inc"
+#undef HANDLE_OP
+
+protected:
+ virtual void visit_fallback(Operation &) {}
+};
+
+} // namespace mir
+
+#endif //_MIR_VISITOR_H_