91 lines
3.2 KiB
C++
91 lines
3.2 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2018 Danny Robson <danny@nerdcruft.net>
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*/
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#include "inequality.hpp"
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#include "../tree.hpp"
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using util::json::schema::constraint::inequality;
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///////////////////////////////////////////////////////////////////////////////
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template <template <typename> class ComparatorT>
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inequality<ComparatorT>::inequality (::json::tree::node const &def)
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{
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if (!def.is_number ())
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throw constraint_error<inequality> (def);
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auto const &val = def.as_number ();
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switch (val.repr ()) {
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case ::json::tree::number::UINT: m_value = val.uint (); break;
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case ::json::tree::number::SINT: m_value = val.sint (); break;
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case ::json::tree::number::REAL: m_value = val.real (); break;
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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template <template <typename> class ComparatorT>
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typename inequality<ComparatorT>::output_iterator
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inequality<ComparatorT>::validate (util::json::schema::constraint::base::output_iterator res,
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::json::tree::node &target) const noexcept
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{
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if (!target.is_number ()) {
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return *res++ = failure { .rule = *this, .target = target };
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}
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// HACK: this shouldn't be casting to double for the comparison, but it
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// greatly simplifies the logic.
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auto const &value = target.as_number ();
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std::visit([&,this] (auto const &inner) noexcept {
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if (!ComparatorT<double>{} (value.as<double> (), inner))
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*res++ = failure { .rule = *this, .target = target };
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}, m_value);
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return res;
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}
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///////////////////////////////////////////////////////////////////////////////
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template <template <typename> class ComparatorT>
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std::ostream&
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inequality<ComparatorT>::describe (std::ostream &os) const
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{
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os << "{ " << util::type_name_v<inequality> << ": ";
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std::visit ([&os] (auto const &i) -> void { os << i; }, m_value);
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return os << " }";
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}
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///////////////////////////////////////////////////////////////////////////////
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template class util::json::schema::constraint::inequality<std::less_equal>;
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template class util::json::schema::constraint::inequality<std::greater_equal>;
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template class util::json::schema::constraint::inequality<std::less>;
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template class util::json::schema::constraint::inequality<std::greater>;
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///////////////////////////////////////////////////////////////////////////////
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template <>
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bool
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util::json::schema::constraint::is_multiple<double>::operator() (double a, double b) const noexcept
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{
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return std::fmod (a, b) <= 1e-8;
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}
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//-----------------------------------------------------------------------------
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template class util::json::schema::constraint::inequality<util::json::schema::constraint::is_multiple>;
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