HashPrefix.h

#pragma once
 
#include <xrpl/beast/hash/hash_append.h>
 
#include <cstdint>
 
namespace xrpl {
 
namespace detail {
 
constexpr std::uint32_t
makeHashPrefix(char a, char b, char c)
{
    return (static_cast<std::uint32_t>(a) << 24) + (static_cast<std::uint32_t>(b) << 16) +
        (static_cast<std::uint32_t>(c) << 8);
}
 
}  // namespace detail

enum class HashPrefix : std::uint32_t {
    TransactionId = detail::makeHashPrefix('T', 'X', 'N'),

    TxNode = detail::makeHashPrefix('S', 'N', 'D'),

    LeafNode = detail::makeHashPrefix('M', 'L', 'N'),

    InnerNode = detail::makeHashPrefix('M', 'I', 'N'),

    LedgerMaster = detail::makeHashPrefix('L', 'W', 'R'),

    TxSign = detail::makeHashPrefix('S', 'T', 'X'),

    TxMultiSign = detail::makeHashPrefix('S', 'M', 'T'),

    Validation = detail::makeHashPrefix('V', 'A', 'L'),

    Proposal = detail::makeHashPrefix('P', 'R', 'P'),

    Manifest = detail::makeHashPrefix('M', 'A', 'N'),

    PaymentChannelClaim = detail::makeHashPrefix('C', 'L', 'M'),

    Batch = detail::makeHashPrefix('B', 'C', 'H'),

    CounterpartyTxSign = detail::makeHashPrefix('C', 'P', 'T'),

    CounterpartyTxMultiSign = detail::makeHashPrefix('C', 'P', 'M'),

    SponsorTxSign = detail::makeHashPrefix('S', 'P', 'N'),

    SponsorTxMultiSign = detail::makeHashPrefix('S', 'P', 'M'),
};
 
template <class Hasher>
void
hash_append(Hasher& h, HashPrefix const& hp) noexcept
{
    using beast::hash_append;
    hash_append(h, static_cast<std::uint32_t>(hp));
}
 
}  // namespace xrpl