tableKeyNames.h

/*
Copyright 2017 VMware, Inc.
 
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 FRONTENDS_P4_TABLEKEYNAMES_H_
#define FRONTENDS_P4_TABLEKEYNAMES_H_
 
#include "frontends/p4/typeChecking/typeChecker.h"
#include "frontends/p4/typeMap.h"
#include "ir/ir.h"
 
namespace P4 {
 
class KeyNameGenerator : public Inspector {
    std::map<const IR::Expression *, cstring> name;
    const TypeMap *typeMap;  // can be nullptr
 
 public:
    explicit KeyNameGenerator(const TypeMap *typeMap) : typeMap(typeMap) {
        setName("KeyNameGenerator");
    }
    void error(const IR::Expression *expression);
    void postorder(const IR::Expression *expression) override;
    void postorder(const IR::PathExpression *expression) override;
    void postorder(const IR::Member *expression) override;
    void postorder(const IR::ArrayIndex *expression) override;
    void postorder(const IR::Constant *expression) override;
    void postorder(const IR::Slice *expression) override;
    void postorder(const IR::BAnd *expression) override;
    void postorder(const IR::MethodCallExpression *expression) override;
    cstring getName(const IR::Expression *expression) { return ::get(name, expression); }
};
 
class DoTableKeyNames final : public Transform {
    const TypeMap *typeMap;
 
 public:
    explicit DoTableKeyNames(const TypeMap *typeMap) : typeMap(typeMap) {
        CHECK_NULL(typeMap);
        setName("DoTableKeyNames");
    }
    const IR::Node *postorder(IR::KeyElement *keyElement) override;
};
 
class TableKeyNames final : public PassManager {
 public:
    explicit TableKeyNames(TypeMap *typeMap) {
        passes.push_back(new TypeChecking(nullptr, typeMap));
        passes.push_back(new DoTableKeyNames(typeMap));
        setName("TableKeyNames");
    }
};
 
}  // namespace P4
 
#endif /* FRONTENDS_P4_TABLEKEYNAMES_H_ */