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289bc7deb3
Since a non-default STAccount is now guaranteed to always be 160 bits, it was possible to reduce the number of methods that it provides. In the process of narrowing the STAccount interface it became reasonable to remove some methods that duplicated functionality. A few classes offered both a value() and a getValue() method. The getValue() method is removed from those classes.
119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_PROTOCOL_STACCOUNT_H_INCLUDED
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#define RIPPLE_PROTOCOL_STACCOUNT_H_INCLUDED
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#include <ripple/protocol/AccountID.h>
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#include <ripple/protocol/STBase.h>
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#include <string>
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namespace ripple {
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class STAccount final
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: public STBase
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{
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private:
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// The original implementation of STAccount kept the value in an STBlob.
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// But an STAccount is always 160 bits, so we can store it with less
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// overhead in a ripple::uint160. However, so the serialized format of the
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// STAccount stays unchanged, we serialize and deserialize like an STBlob.
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uint160 value_;
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bool default_;
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public:
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using value_type = AccountID;
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STAccount ();
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STAccount (SField const& n);
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STAccount (SField const& n, Buffer&& v);
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STAccount (SerialIter& sit, SField const& name);
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STAccount (SField const& n, AccountID const& v);
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STBase*
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copy (std::size_t n, void* buf) const override
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{
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return emplace (n, buf, *this);
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}
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STBase*
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move (std::size_t n, void* buf) override
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{
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return emplace (n, buf, std::move(*this));
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}
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SerializedTypeID getSType () const override
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{
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return STI_ACCOUNT;
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}
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std::string getText () const override;
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void
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add (Serializer& s) const override
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{
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assert (fName->isBinary ());
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assert (fName->fieldType == STI_ACCOUNT);
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// Preserve the serialization behavior of an STBlob:
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// o If we are default (all zeros) serialize as an empty blob.
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// o Otherwise serialize 160 bits.
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int const size = isDefault() ? 0 : uint160::bytes;
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s.addVL (value_.data(), size);
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}
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bool
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isEquivalent (const STBase& t) const override
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{
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auto const* const tPtr = dynamic_cast<STAccount const*>(&t);
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return tPtr && (default_ == tPtr->default_) && (value_ == tPtr->value_);
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}
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bool
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isDefault () const override
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{
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return default_;
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}
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STAccount&
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operator= (AccountID const& value)
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{
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setValue (value);
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return *this;
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}
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AccountID
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value() const noexcept
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{
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AccountID result;
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result.copyFrom (value_);
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return result;
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}
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void setValue (AccountID const& v)
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{
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value_.copyFrom (v);
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default_ = false;
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}
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};
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} // ripple
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#endif
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