STBlob.h

#pragma once
 
#include <xrpl/basics/Buffer.h>
#include <xrpl/basics/CountedObject.h>
#include <xrpl/basics/Slice.h>
#include <xrpl/beast/utility/instrumentation.h>
#include <xrpl/protocol/STBase.h>
 
#include <cstring>
 
namespace xrpl {
 
// variable length byte string
class STBlob : public STBase, public CountedObject<STBlob>
{
    Buffer value_;
 
public:
    using value_type = Slice;
 
    STBlob() = default;
    STBlob(STBlob const& rhs);
 
    STBlob(SField const& f, void const* data, std::size_t size);
    STBlob(SField const& f, Buffer&& b);
    STBlob(SField const& n);
    STBlob(SerialIter&, SField const& name = sfGeneric);
 
    std::size_t
    size() const;
 
    std::uint8_t const*
    data() const;
 
    SerializedTypeID
    getSType() const override;
 
    std::string
    getText() const override;
 
    void
    add(Serializer& s) const override;
 
    bool
    isEquivalent(STBase const& t) const override;
 
    bool
    isDefault() const override;
 
    STBlob&
    operator=(Slice const& slice);
 
    value_type
    value() const noexcept;
 
    STBlob&
    operator=(Buffer&& buffer);
 
    void
    setValue(Buffer&& b);
 
private:
    STBase*
    copy(std::size_t n, void* buf) const override;
    STBase*
    move(std::size_t n, void* buf) override;
 
    friend class detail::STVar;
};
 
inline STBlob::STBlob(STBlob const& rhs)
    : STBase(rhs), CountedObject<STBlob>(rhs), value_(rhs.data(), rhs.size())
{
}
 
inline STBlob::STBlob(SField const& f, void const* data, std::size_t size)
    : STBase(f), value_(data, size)
{
}
 
inline STBlob::STBlob(SField const& f, Buffer&& b) : STBase(f), value_(std::move(b))
{
}
 
inline STBlob::STBlob(SField const& n) : STBase(n)
{
}
 
inline std::size_t
STBlob::size() const
{
    return value_.size();
}
 
inline std::uint8_t const*
STBlob::data() const
{
    return reinterpret_cast<std::uint8_t const*>(value_.data());
}
 
inline STBlob&
STBlob::operator=(Slice const& slice)
{
    value_ = Buffer(slice.data(), slice.size());
    return *this;
}
 
inline STBlob::value_type
STBlob::value() const noexcept
{
    return value_;
}
 
inline STBlob&
STBlob::operator=(Buffer&& buffer)
{
    value_ = std::move(buffer);
    return *this;
}
 
inline void
STBlob::setValue(Buffer&& b)
{
    value_ = std::move(b);
}
 
}  // namespace xrpl