NullPtrConstant.h

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// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <memory>
#include <string>
#include <typeinfo>
 
#include "mini-llvm/ir/Constant.h"
#include "mini-llvm/ir/Constant/PointerConstant.h"
#include "mini-llvm/ir/ConstantVisitor.h"
#include "mini-llvm/ir/Type.h"
#include "mini-llvm/ir/Type/Ptr.h"
#include "mini-llvm/ir/Value.h"
 
namespace mini_llvm::ir {
 
class NullPtrConstant final : public PointerConstant {
public:
    void accept(ConstantVisitor &visitor) override {
        visitor.visitNullPtrConstant(*this);
    }
 
    void accept(ConstantVisitor &visitor) const override {
        visitor.visitNullPtrConstant(*this);
    }
 
    std::unique_ptr<Type> type() const override {
        return std::make_unique<Ptr>();
    }
 
    std::string format() const override {
        return "null";
    }
 
    std::unique_ptr<Value> clone() const override {
        return std::make_unique<NullPtrConstant>();
    }
 
protected:
    bool equals(const Constant &other) const override {
        return typeid(*this) == typeid(other);
    }
};
 
} // namespace mini_llvm::ir