Constant.h

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// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <concepts>
#include <format>
#include <string>
 
#include "mini-llvm/mir/ConstantVisitor.h"
#include "mini-llvm/utils/Compiler.h"
 
namespace mini_llvm::mir {
 
class MINI_LLVM_EXPORT Constant {
public:
    virtual ~Constant() = default;
 
    Constant() = default;
 
    Constant(const Constant &) = delete;
    Constant &operator=(const Constant &) = delete;
 
    Constant(Constant &&) = delete;
    Constant &operator=(Constant &&) = delete;
 
    virtual int size() const = 0;
    virtual std::string format() const = 0;
    virtual void accept(ConstantVisitor &visitor) = 0;
    virtual void accept(ConstantVisitor &visitor) const = 0;
};
 
} // namespace mini_llvm::mir
 
template <typename ConstantT>
    requires std::derived_from<ConstantT, mini_llvm::mir::Constant>
struct std::formatter<ConstantT> {
    constexpr auto parse(std::format_parse_context &ctx) {
        return ctx.begin();
    }
 
    template <typename FormatContext>
    auto format(const ConstantT &C, FormatContext &ctx) const {
        return std::format_to(ctx.out(), "{}", C.format());
    }
};