bmv2/map_direct_externs.h

/*
 * SPDX-FileCopyrightText: 2023 The P4 Language Consortium
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef BACKENDS_P4TOOLS_MODULES_TESTGEN_TARGETS_BMV2_MAP_DIRECT_EXTERNS_H_
#define BACKENDS_P4TOOLS_MODULES_TESTGEN_TARGETS_BMV2_MAP_DIRECT_EXTERNS_H_
 
#include <array>
#include <map>
#include <optional>
 
#include "ir/ir.h"
#include "ir/visitor.h"
#include "lib/cstring.h"
 
namespace P4::P4Tools::P4Testgen::Bmv2 {

using DirectExternMap = std::map<cstring, const IR::P4Table *>;

class MapDirectExterns : public Inspector {
 private:
    static constexpr std::array kTableExternProperties = {"meters", "counters"};

    std::map<cstring, const IR::Declaration_Instance *> declaredExterns;

    DirectExternMap directExternMap;

    std::optional<const IR::Declaration_Instance *> getExternFromTableImplementation(
        const IR::Property *tableImplementation);
 
    bool preorder(const IR::Declaration_Instance *declInstance) override;
    bool preorder(const IR::P4Table *table) override;
 
 public:
    const DirectExternMap &getDirectExternMap();
};
 
}  // namespace P4::P4Tools::P4Testgen::Bmv2
 
#endif /*BACKENDS_P4TOOLS_MODULES_TESTGEN_TARGETS_BMV2_MAP_DIRECT_EXTERNS_H_*/