HashPrefix.h

#ifndef XRPL_PROTOCOL_HASHPREFIX_H_INCLUDED
#define XRPL_PROTOCOL_HASHPREFIX_H_INCLUDED
 
#include <xrpl/beast/hash/hash_append.h>
 
#include <cstdint>
 
namespace ripple {
 
namespace detail {
 
constexpr std::uint32_t
make_hash_prefix(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::make_hash_prefix('T', 'X', 'N'),
 
    txNode = detail::make_hash_prefix('S', 'N', 'D'),
 
    leafNode = detail::make_hash_prefix('M', 'L', 'N'),
 
    innerNode = detail::make_hash_prefix('M', 'I', 'N'),
 
    ledgerMaster = detail::make_hash_prefix('L', 'W', 'R'),
 
    txSign = detail::make_hash_prefix('S', 'T', 'X'),
 
    txMultiSign = detail::make_hash_prefix('S', 'M', 'T'),
 
    validation = detail::make_hash_prefix('V', 'A', 'L'),
 
    proposal = detail::make_hash_prefix('P', 'R', 'P'),
 
    manifest = detail::make_hash_prefix('M', 'A', 'N'),
 
    paymentChannelClaim = detail::make_hash_prefix('C', 'L', 'M'),
 
    credential = detail::make_hash_prefix('C', 'R', 'D'),
 
    batch = detail::make_hash_prefix('B', 'C', 'H'),
};
 
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 ripple
 
#endif