P4C
The P4 Compiler
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cloner.h
1/*
2Copyright 2013-present Barefoot Networks, Inc.
3
4Licensed under the Apache License, Version 2.0 (the "License");
5you may not use this file except in compliance with the License.
6You may obtain a copy of the License at
7
8 http://www.apache.org/licenses/LICENSE-2.0
9
10Unless required by applicable law or agreed to in writing, software
11distributed under the License is distributed on an "AS IS" BASIS,
12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13See the License for the specific language governing permissions and
14limitations under the License.
15*/
16
17#ifndef FRONTENDS_P4_CLONER_H_
18#define FRONTENDS_P4_CLONER_H_
19
20#include "ir/ir.h"
21
22namespace P4 {
23
27 public:
29 visitDagOnce = false;
30 setName("CloneExpressions");
31 }
32 const IR::Node *postorder(IR::PathExpression *path) override {
33 path->path = path->path->clone();
34 return path;
35 }
36
37 // Clone expressions of the form Member(TypeNameExpression)
38 const IR::Node *postorder(IR::Member *member) override {
39 if (member->expr->is<IR::TypeNameExpression>()) {
40 return new IR::Member(member->expr->clone(), member->member);
41 }
42 return member;
43 }
44
45 template <typename T>
46 const T *clone(const IR::Node *node) {
47 return node->apply(*this)->to<T>();
48 }
49};
50
51} // namespace P4
52
53#endif /* FRONTENDS_P4_CLONER_H_ */
Definition cloner.h:26
Definition node.h:95
Definition visitor.h:424
TODO: this is not really specific to BMV2, it should reside somewhere else.
Definition applyOptionsPragmas.cpp:24
T * to() noexcept
Definition rtti.h:226