mirror of
https://github.com/XRPLF/rippled.git
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138 lines
3.2 KiB
C++
138 lines
3.2 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_ISSUE_H_INCLUDED
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#define RIPPLE_PROTOCOL_ISSUE_H_INCLUDED
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#include <xrpl/beast/utility/instrumentation.h>
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#include <xrpl/json/json_value.h>
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#include <xrpl/protocol/UintTypes.h>
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namespace ripple {
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/** A currency issued by an account.
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@see Currency, AccountID, Issue, Book
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*/
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class Issue
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{
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public:
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Currency currency{};
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AccountID account{};
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Issue() = default;
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Issue(Currency const& c, AccountID const& a) : currency(c), account(a)
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{
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}
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AccountID const&
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getIssuer() const
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{
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return account;
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}
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std::string
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getText() const;
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void
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setJson(Json::Value& jv) const;
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bool
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native() const;
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friend constexpr std::weak_ordering
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operator<=>(Issue const& lhs, Issue const& rhs);
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};
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bool
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isConsistent(Issue const& ac);
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std::string
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to_string(Issue const& ac);
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Json::Value
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to_json(Issue const& is);
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Issue
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issueFromJson(Json::Value const& v);
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std::ostream&
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operator<<(std::ostream& os, Issue const& x);
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template <class Hasher>
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void
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hash_append(Hasher& h, Issue const& r)
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{
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using beast::hash_append;
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hash_append(h, r.currency, r.account);
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}
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/** Equality comparison. */
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/** @{ */
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[[nodiscard]] inline constexpr bool
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operator==(Issue const& lhs, Issue const& rhs)
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{
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return (lhs.currency == rhs.currency) &&
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(isXRP(lhs.currency) || lhs.account == rhs.account);
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}
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/** @} */
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/** Strict weak ordering. */
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/** @{ */
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[[nodiscard]] constexpr std::weak_ordering
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operator<=>(Issue const& lhs, Issue const& rhs)
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{
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if (auto const c{lhs.currency <=> rhs.currency}; c != 0)
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return c;
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if (isXRP(lhs.currency))
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return std::weak_ordering::equivalent;
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return (lhs.account <=> rhs.account);
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}
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/** @} */
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//------------------------------------------------------------------------------
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/** Returns an asset specifier that represents XRP. */
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inline Issue const&
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xrpIssue()
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{
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static Issue issue{xrpCurrency(), xrpAccount()};
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return issue;
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}
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/** Returns an asset specifier that represents no account and currency. */
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inline Issue const&
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noIssue()
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{
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static Issue issue{noCurrency(), noAccount()};
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return issue;
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}
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inline bool
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isXRP(Issue const& issue)
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{
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return issue.native();
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}
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} // namespace ripple
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#endif
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