Class HashedSourceWriter

src/hash.h:192–212

/** Writes data to an underlying source stream, while hashing the written data. */
template <typename Source>
class HashedSourceWriter : public HashWriter
{
private:
    Source& m_source;

public:
    explicit HashedSourceWriter(Source& source LIFETIMEBOUND) : HashWriter{}, m_source{source} {}

    void write(std::span<const std::byte> src)
    {
        m_source.write(src);
        HashWriter::write(src);
    }

    template <typename T>
    HashedSourceWriter& operator<<(const T& obj)
    {
        ::Serialize(*this, obj);
        return *this;
    }
};

/** Single-SHA256 a 32-byte input (represented as uint256). */
[[nodiscard]] uint256 SHA256Uint256(const uint256& input);