formulae.h

/*
 * SPDX-FileCopyrightText: 2022 The P4 Language Consortium
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef BACKENDS_P4TOOLS_COMMON_LIB_FORMULAE_H_
#define BACKENDS_P4TOOLS_COMMON_LIB_FORMULAE_H_
 
#include <functional>
#include <string>
 
#include "ir/ir.h"
#include "ir/node.h"
#include "lib/exceptions.h"
 
namespace P4::P4Tools {

template <class Self, class Node = IR::Expression>
class AbstractRepCheckedNode : public ICastable {
 protected:
    std::reference_wrapper<const Node> node;
 
    // Implicit conversions to allow implementations to be treated like a Node*.
    operator const Node *() const { return &node.get(); }
    const Node &operator*() const { return node.get(); }
    const Node *operator->() const { return &node.get(); }

    explicit AbstractRepCheckedNode(const Node *node, std::string classDesc) : node(*node) {
        BUG_CHECK(Self::repOk(node), "%1%: Not a valid %2%.", node, classDesc);
    }
 
    DECLARE_TYPEINFO(AbstractRepCheckedNode);
};
 
}  // namespace P4::P4Tools
 
#endif /* BACKENDS_P4TOOLS_COMMON_LIB_FORMULAE_H_ */