Danny Robson
35e3f69ad2
views should not do elementwise comparisons for equality operators. they are pairs of iterators and are only equal if their iterators are equal. instead, use `equal` for elementwise equality. we update the name of exactly_equal to perform this operation too.
1072 lines
27 KiB
C++
1072 lines
27 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 2010-2015 Danny Robson <danny@nerdcruft.net>
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*/
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#include "tree.hpp"
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#include "except.hpp"
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#include "flat.hpp"
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#include "../debug.hpp"
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#include "../io.hpp"
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#include "../maths.hpp"
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#include "../stream.hpp"
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#include "preprocessor.hpp"
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#include <algorithm>
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#include <cstdlib>
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#include <iomanip>
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///////////////////////////////////////////////////////////////////////////////
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using json::tree::node;
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using json::tree::object;
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using json::tree::array;
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using json::tree::string;
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using json::tree::number;
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using json::tree::boolean;
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using json::tree::null;
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///////////////////////////////////////////////////////////////////////////////
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namespace util {
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bool
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is_integer (const json::tree::number &node)
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{
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using R = json::tree::number::repr_t;
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switch (node.repr ()) {
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case R::REAL:
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return is_integer (node.real ());
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case R::SINT:
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case R::UINT:
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return true;
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}
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unreachable ();
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}
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//-----------------------------------------------------------------------------
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bool
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is_integer (const json::tree::node &node)
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{
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return node.is_number () && is_integer (node.as_number ());
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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template <typename T>
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static
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typename std::vector<json::flat::item<T>>::const_iterator
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parse (typename std::vector<json::flat::item<T>>::const_iterator first,
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typename std::vector<json::flat::item<T>>::const_iterator last,
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std::unique_ptr<json::tree::node> &output);
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//-----------------------------------------------------------------------------
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template <typename T>
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static
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typename std::vector<json::flat::item<T>>::const_iterator
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parse (typename std::vector<json::flat::item<T>>::const_iterator first,
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typename std::vector<json::flat::item<T>>::const_iterator last,
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json::tree::array &parent)
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{
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for (auto cursor = first; cursor != last; ) {
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if (cursor->tag == json::flat::type::ARRAY_END)
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return cursor + 1;
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std::unique_ptr<json::tree::node> value;
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cursor = ::parse<T> (cursor, last, value);
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parent.insert (std::move (value));
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}
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unreachable ();
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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static
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typename std::vector<json::flat::item<T>>::const_iterator
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parse (typename std::vector<json::flat::item<T>>::const_iterator first,
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typename std::vector<json::flat::item<T>>::const_iterator last,
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json::tree::object &parent)
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{
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for (auto cursor = first; cursor != last; ) {
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if (cursor->tag == json::flat::type::OBJECT_END)
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return cursor + 1;
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CHECK_EQ (cursor->tag, json::flat::type::STRING);
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std::string key (cursor->first + 1, cursor->last - 1);
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++cursor;
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std::unique_ptr<json::tree::node> val;
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cursor = ::parse<T> (cursor, last, val);
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parent.insert (key, std::move (val));
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}
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unreachable ();
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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static
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typename std::vector<json::flat::item<T>>::const_iterator
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parse (typename std::vector<json::flat::item<T>>::const_iterator first,
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typename std::vector<json::flat::item<T>>::const_iterator last,
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std::unique_ptr<json::tree::node> &output)
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{
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CHECK (first != last);
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CHECK (output.get () == nullptr);
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using F = json::flat::type;
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switch (first->tag) {
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case F::NUL:
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output.reset (new json::tree::null ());
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return first + 1;
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case F::BOOLEAN:
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CHECK (*first->first == 't' || *first->first == 'f');
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output.reset (new json::tree::boolean (*first->first == 't'));
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return first + 1;
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case F::STRING:
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CHECK_NEQ (&*first->first, &*first->last);
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output.reset (new json::tree::string (first->first + 1, first->last - 1));
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return first + 1;
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case F::INTEGER: {
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T start = first->first;
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bool negative = *start == '-';
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if (negative)
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++start;
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T finish = start;
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uintmax_t v = 0;
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while (isdigit (*finish))
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v *= 10, v += *finish - '0', ++finish;
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if (finish == start || finish > first->last)
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throw json::parse_error ("invalid integer");
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if (negative)
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output.reset (new json::tree::number (-intmax_t(v)));
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else
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output.reset (new json::tree::number (v));
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return first + 1;
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}
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case F::REAL: {
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std::string str (first->first, first->last);
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output.reset (new json::tree::number (std::atof (str.c_str())));
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return first + 1;
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}
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case F::ARRAY_BEGIN: {
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auto value = std::make_unique<json::tree::array> ();
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auto cursor = ::parse<T> (first + 1, last, *value);
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output = std::move (value);
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return cursor;
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}
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case F::OBJECT_BEGIN: {
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auto value = std::make_unique<json::tree::object> ();
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auto cursor = ::parse<T> (first + 1, last, *value);
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output = std::move (value);
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return cursor;
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}
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case F::UNKNOWN:
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case F::OBJECT_END:
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case F::ARRAY_END:
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unreachable ();
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}
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unreachable ();
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}
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///////////////////////////////////////////////////////////////////////////////
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template <typename T>
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std::unique_ptr<json::tree::node>
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json::tree::parse (const util::view<T> &src)
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{
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std::unique_ptr<json::tree::node> output;
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auto data = json::flat::parse (src);
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auto end = ::parse<T> (data.cbegin (), data.cend (), output);
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CHECK (end == data.cend ());
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(void)end;
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return output;
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}
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#define INSTANTIATE(KLASS) \
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template \
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std::unique_ptr<json::tree::node> \
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json::tree::parse (const util::view<KLASS>&);
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MAP0(INSTANTIATE,
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std::string::iterator,
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std::string::const_iterator,
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const char* restrict,
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const char*,
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char* restrict,
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char *
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);
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#undef INSTANTIATE
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//-----------------------------------------------------------------------------
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std::unique_ptr<json::tree::node>
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json::tree::parse (const std::experimental::filesystem::path &src)
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{
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const util::mapped_file data (src);
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return parse (util::view{data}.cast<const char> ());
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}
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///////////////////////////////////////////////////////////////////////////////
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void
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json::tree::write (const json::tree::node &node, std::ostream &os)
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{
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node.write (os);
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}
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///////////////////////////////////////////////////////////////////////////////
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// Type conversion
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const json::tree::object&
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json::tree::node::as_object (void) const&
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{ throw json::type_error ("node is not an object"); }
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//-----------------------------------------------------------------------------
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const json::tree::array&
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json::tree::node::as_array (void) const&
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{ throw json::type_error ("node is not an array"); }
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//-----------------------------------------------------------------------------
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const json::tree::string&
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json::tree::node::as_string (void) const&
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{ throw json::type_error ("node is not a string"); }
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//-----------------------------------------------------------------------------
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const json::tree::number&
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json::tree::node::as_number (void) const&
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{ throw json::type_error ("node is not a number"); }
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//-----------------------------------------------------------------------------
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const json::tree::boolean&
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json::tree::node::as_boolean (void) const&
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{ throw json::type_error ("node is not a boolean"); }
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//-----------------------------------------------------------------------------
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const json::tree::null&
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json::tree::node::as_null (void) const&
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{ throw json::type_error ("node is not a null"); }
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///////////////////////////////////////////////////////////////////////////////
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json::tree::object&
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json::tree::node::as_object (void)&
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{ throw json::type_error ("node is not an object"); }
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//-----------------------------------------------------------------------------
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json::tree::array&
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json::tree::node::as_array (void)&
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{ throw json::type_error ("node is not an array"); }
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//-----------------------------------------------------------------------------
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json::tree::string&
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json::tree::node::as_string (void)&
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{ throw json::type_error ("node is not a string"); }
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//-----------------------------------------------------------------------------
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json::tree::number&
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json::tree::node::as_number (void)&
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{ throw json::type_error ("node is not a number"); }
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//-----------------------------------------------------------------------------
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json::tree::boolean&
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json::tree::node::as_boolean (void)&
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{ throw json::type_error ("node is not a boolean"); }
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//-----------------------------------------------------------------------------
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json::tree::null&
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json::tree::node::as_null (void)&
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{ throw json::type_error ("node is not a null"); }
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///////////////////////////////////////////////////////////////////////////////
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bool
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json::tree::node::as_bool (void) const
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{
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return !!as_boolean ();
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}
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//-----------------------------------------------------------------------------
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float
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json::tree::node::as_float (void) const
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{
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return static_cast<float> (as_number ().real ());
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}
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//-----------------------------------------------------------------------------
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double
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json::tree::node::as_double (void) const
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{
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return as_number ().real ();
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}
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//-----------------------------------------------------------------------------
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uintmax_t
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json::tree::node::as_uint (void) const
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{
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return as_number ().uint ();
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}
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//-----------------------------------------------------------------------------
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intmax_t
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json::tree::node::as_sint (void) const
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{
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return as_number ().sint ();
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}
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//-----------------------------------------------------------------------------
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const char*
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json::tree::node::as_chars (void) const&
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{
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return as_string ().native ().c_str ();
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}
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///////////////////////////////////////////////////////////////////////////////
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namespace json::tree {
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#if defined(__clang__)
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#elif defined(__GNUC__)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wuseless-cast"
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#endif
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template <>
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bool node::as (void) const
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{
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return as_bool ();
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}
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//-----------------------------------------------------------------------------
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template <>
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float json::tree::node::as (void) const
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{
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return as_float ();
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}
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//-----------------------------------------------------------------------------
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template <>
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double
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json::tree::node::as (void) const
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{
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return as_double ();
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}
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//-----------------------------------------------------------------------------
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template <>
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uint32_t
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json::tree::node::as (void) const
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{
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return static_cast<uint32_t> (as_uint ());
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}
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//-----------------------------------------------------------------------------
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template <>
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uint64_t
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json::tree::node::as (void) const
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{
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return static_cast<uint64_t> (as_uint ());
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}
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//-----------------------------------------------------------------------------
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template <>
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int32_t
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json::tree::node::as (void) const
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{
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return static_cast<int32_t> (as_sint ());
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}
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//-----------------------------------------------------------------------------
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template <>
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int64_t
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json::tree::node::as (void) const
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{
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return static_cast<int64_t> (as_sint ());
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}
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//-------------------------------------------------------------------------
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template <>
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const std::string&
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json::tree::node::as (void) const
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{
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return as_string ().native ();
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}
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#if defined(__clang__)
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#elif defined(__GNUC__)
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#pragma GCC diagnostic pop
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#endif
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}
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///////////////////////////////////////////////////////////////////////////////
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// Global operatoers
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bool
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json::tree::node::operator!= (const node &rhs) const
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{ return !(*this == rhs); }
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//-----------------------------------------------------------------------------
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bool json::tree::node::operator==(const char *rhs) const
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{
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try {
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return as_string ().native () == rhs;
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} catch (const json::type_error&) {
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return false;
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}
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}
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//-----------------------------------------------------------------------------
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json::tree::node&
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json::tree::node::operator[] (const std::string &key)&
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{ return as_object ()[key]; }
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//-----------------------------------------------------------------------------
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json::tree::node&
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json::tree::node::operator[] (size_t idx)&
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{ return as_array()[idx]; }
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//-----------------------------------------------------------------------------
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const json::tree::node&
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json::tree::node::operator[] (const std::string &key) const&
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{ return as_object ()[key]; }
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//-----------------------------------------------------------------------------
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const json::tree::node&
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json::tree::node::operator[] (size_t idx) const&
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{ return as_array()[idx]; }
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///////////////////////////////////////////////////////////////////////////////
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// Object
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json::tree::object::~object ()
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{ ; }
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//-----------------------------------------------------------------------------
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std::unique_ptr<json::tree::node>
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json::tree::object::clone (void) const
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{
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auto obj = std::make_unique<json::tree::object> ();
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for (auto &i: *this)
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obj->insert (i.first, i.second->clone ());
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return std::move (obj);
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}
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//-----------------------------------------------------------------------------
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bool
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json::tree::object::operator ==(const json::tree::object &rhs) const
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{
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for (auto i = rhs.m_values.begin (), j = m_values.begin ();
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i != rhs.m_values.end () && j != m_values.end ();
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++i, ++j)
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{
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if (i->first != j->first)
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return false;
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if ((*i->second) != (*j->second))
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return false;
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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void
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json::tree::object::insert (const std::string &_key, std::unique_ptr<json::tree::node> &&value)
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{
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m_values[_key] = move(value);
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}
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//-----------------------------------------------------------------------------
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json::tree::node&
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json::tree::object::operator[](const std::string &key)&
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{
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auto value = m_values.find (key);
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if (value == m_values.end ())
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throw json::key_error (key);
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return *value->second;
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}
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|
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//-----------------------------------------------------------------------------
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const json::tree::node&
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json::tree::object::operator[](const std::string &key) const&
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{
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auto value = m_values.find (key);
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if (value == m_values.end ())
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throw json::key_error (key);
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return *value->second;
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}
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|
|
|
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//-----------------------------------------------------------------------------
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|
bool
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json::tree::object::has (const std::string &key) const
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{
|
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return m_values.find (key) != m_values.end ();
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}
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|
|
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//-----------------------------------------------------------------------------
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json::tree::object::const_iterator
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json::tree::object::find (const std::string &key) const
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{
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return m_values.find (key);
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}
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//-----------------------------------------------------------------------------
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json::tree::object::const_iterator
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json::tree::object::begin (void) const
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{ return m_values.begin (); }
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|
|
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|
//-----------------------------------------------------------------------------
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json::tree::object::const_iterator
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json::tree::object::end (void) const
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{ return m_values.end (); }
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|
|
|
|
//-----------------------------------------------------------------------------
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|
size_t
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json::tree::object::size (void) const
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{
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return m_values.size ();
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}
|
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|
|
|
|
//-----------------------------------------------------------------------------
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|
void
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json::tree::object::clear (void)
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{
|
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m_values.clear ();
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}
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|
|
|
|
//-----------------------------------------------------------------------------
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|
void
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json::tree::object::erase (const std::string &key)
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{
|
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auto pos = m_values.find (key);
|
|
if (pos == m_values.end ())
|
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throw json::error ("erasing invalid key");
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|
|
m_values.erase (key);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::ostream&
|
|
json::tree::object::write (std::ostream &os) const
|
|
{
|
|
os << "{\n";
|
|
{
|
|
util::indenter raii(os);
|
|
|
|
for (auto i = m_values.begin (); i != m_values.end ();) {
|
|
os << '"' << i->first << "\" : " << *i->second;
|
|
|
|
if (++i != m_values.end ())
|
|
os << ",\n";
|
|
}
|
|
}
|
|
|
|
os << "\n}";
|
|
return os;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Array
|
|
|
|
json::tree::array::~array()
|
|
{
|
|
m_values.clear ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::unique_ptr<json::tree::node>
|
|
json::tree::array::clone (void) const
|
|
{
|
|
auto ret = std::make_unique<array> ();
|
|
|
|
for (const auto &i: *this)
|
|
ret->insert (i.clone ());
|
|
|
|
return std::move (ret);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
void
|
|
json::tree::array::insert (std::unique_ptr<json::tree::node> &&_value)
|
|
{
|
|
m_values.push_back (move (_value));
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
bool
|
|
json::tree::array::operator==(const json::tree::array &rhs) const
|
|
{
|
|
for (auto i = rhs.m_values.begin (), j = m_values.begin ();
|
|
i != rhs.m_values.end () && j != m_values.end ();
|
|
++i, ++j)
|
|
{ if ((**i) != (**j)) return false; }
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
bool
|
|
json::tree::array::operator== (const node &rhs) const
|
|
{
|
|
return rhs == *this;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
size_t
|
|
json::tree::array::size (void) const
|
|
{
|
|
return m_values.size ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::node&
|
|
json::tree::array::operator[] (size_t idx)&
|
|
{
|
|
return *m_values[idx];
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
const json::tree::node&
|
|
json::tree::array::operator[] (size_t idx) const&
|
|
{
|
|
return *m_values[idx];
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::array::iterator
|
|
json::tree::array::begin (void)
|
|
{
|
|
return iterator (m_values.begin ());
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::array::iterator
|
|
json::tree::array::end (void)
|
|
{
|
|
return iterator (m_values.end ());
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::array::const_iterator
|
|
json::tree::array::begin (void) const
|
|
{
|
|
return const_iterator (m_values.begin ());
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::array::const_iterator
|
|
json::tree::array::end (void) const
|
|
{
|
|
return const_iterator (m_values.end ());
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::array::const_iterator
|
|
json::tree::array::cbegin (void) const
|
|
{
|
|
return const_iterator (m_values.cbegin ());
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::array::const_iterator
|
|
json::tree::array::cend (void) const
|
|
{
|
|
return const_iterator (m_values.cend ());
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::ostream&
|
|
json::tree::array::write (std::ostream &os) const {
|
|
os << "[\n";
|
|
{
|
|
util::indenter raii(os);
|
|
|
|
for (auto i = m_values.begin (); i != m_values.end (); ++i) {
|
|
(*i)->write (os);
|
|
|
|
if (i != m_values.end () - 1)
|
|
os << ",\n";
|
|
}
|
|
}
|
|
os << "\n]";
|
|
return os;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// String
|
|
|
|
std::unique_ptr<json::tree::node>
|
|
json::tree::string::clone (void) const
|
|
{
|
|
return std::make_unique<json::tree::string> (m_value);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::ostream&
|
|
json::tree::string::write (std::ostream &os) const
|
|
{
|
|
os << '"' << m_value << '"';
|
|
return os;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
bool
|
|
json::tree::string::operator== (const json::tree::string &rhs) const
|
|
{ return rhs.m_value == m_value; }
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
bool
|
|
json::tree::string::operator== (const char *rhs) const
|
|
{ return rhs == m_value; }
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
bool
|
|
json::tree::string::operator== (const std::string &rhs) const
|
|
{ return rhs == m_value; }
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Number
|
|
|
|
std::unique_ptr<json::tree::node>
|
|
json::tree::number::clone (void) const
|
|
{
|
|
switch (m_repr) {
|
|
case REAL: return std::make_unique<json::tree::number> (m_value.r);
|
|
case SINT: return std::make_unique<json::tree::number> (m_value.s);
|
|
case UINT: return std::make_unique<json::tree::number> (m_value.u);
|
|
}
|
|
|
|
unreachable ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::ostream&
|
|
json::tree::number::write (std::ostream &os) const
|
|
{
|
|
util::stream::scoped::precision p (os);
|
|
|
|
switch (m_repr) {
|
|
case REAL: return os << std::setprecision (std::numeric_limits<real_t>::digits10) << m_value.r;
|
|
case SINT: return os << std::setprecision (std::numeric_limits<sint_t>::digits10) << m_value.s;
|
|
case UINT: return os << std::setprecision (std::numeric_limits<uint_t>::digits10) << m_value.u;
|
|
}
|
|
|
|
unreachable ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
bool
|
|
json::tree::number::operator ==(const json::tree::number &rhs) const {
|
|
if (repr () != rhs.repr ())
|
|
return false;
|
|
|
|
switch (repr ()) {
|
|
case REAL: return util::almost_equal (real (), rhs.real ());
|
|
case SINT: return util::almost_equal (sint (), rhs.sint ());
|
|
case UINT: return util::almost_equal (uint (), rhs.uint ());
|
|
}
|
|
|
|
unreachable ();
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
json::tree::number::real_t
|
|
json::tree::number::real (void) const
|
|
{
|
|
switch (repr ()) {
|
|
case REAL:
|
|
return m_value.r;
|
|
|
|
case UINT:
|
|
if (uint_t (real_t (m_value.u)) != m_value.u)
|
|
throw type_error ("number is not a real");
|
|
return m_value.u;
|
|
|
|
case SINT:
|
|
if (sint_t (real_t (m_value.s)) != m_value.s)
|
|
throw type_error ("number is not a real");
|
|
return m_value.s;
|
|
}
|
|
|
|
unreachable ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::number::sint_t
|
|
json::tree::number::sint (void) const
|
|
{
|
|
switch (repr ()) {
|
|
case SINT:
|
|
return m_value.s;
|
|
|
|
case REAL:
|
|
if (!::util::equal (real_t (sint_t (m_value.r)), m_value.r))
|
|
throw type_error ("number is not a sint");
|
|
return sint_t (m_value.r);
|
|
|
|
case UINT:
|
|
if (uint_t (sint_t (m_value.u)) != m_value.u)
|
|
throw type_error ("number is not a sint");
|
|
return m_value.s;
|
|
}
|
|
|
|
unreachable ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::number::uint_t
|
|
json::tree::number::uint (void) const
|
|
{
|
|
switch (repr ()) {
|
|
case UINT:
|
|
return m_value.u;
|
|
|
|
case REAL:
|
|
if (!::util::equal (real_t (uint_t (m_value.r)), m_value.r))
|
|
throw type_error ("number is not a uint");
|
|
return uint_t (m_value.r);
|
|
|
|
case SINT:
|
|
if (sint_t (uint_t (m_value.s)) != m_value.s)
|
|
throw type_error ("number is not a uint");
|
|
return m_value.s;
|
|
}
|
|
|
|
unreachable ();
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
json::tree::number::operator json::tree::number::real_t (void) const
|
|
{
|
|
return real ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::number::operator json::tree::number::sint_t (void) const
|
|
{
|
|
return sint ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
json::tree::number::operator json::tree::number::uint_t (void) const
|
|
{
|
|
return uint ();
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Boolean
|
|
|
|
std::unique_ptr<json::tree::node>
|
|
json::tree::boolean::clone (void) const
|
|
{
|
|
return std::make_unique<json::tree::boolean> (m_value);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::ostream&
|
|
json::tree::boolean::write (std::ostream &os) const
|
|
{
|
|
os << (m_value ? "true" : "false");
|
|
return os;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
bool
|
|
json::tree::boolean::operator ==(const json::tree::boolean &rhs) const
|
|
{ return rhs.m_value == m_value; }
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Null
|
|
|
|
std::unique_ptr<json::tree::node>
|
|
json::tree::null::clone (void) const
|
|
{
|
|
return std::make_unique<json::tree::null> ();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::ostream&
|
|
json::tree::null::write (std::ostream &os) const
|
|
{
|
|
os << "null";
|
|
return os;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
std::ostream&
|
|
json::tree::operator<< (std::ostream &os, const json::tree::node &n)
|
|
{ return n.write (os); }
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// to_json
|
|
|
|
namespace json::tree {
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<bool>::serialise (const bool &b) {
|
|
return std::unique_ptr<node> (new boolean (b));
|
|
}
|
|
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<std::nullptr_t>::serialise (const std::nullptr_t &) {
|
|
return std::unique_ptr<node> (new null ());
|
|
}
|
|
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<std::string>::serialise (const std::string &s) {
|
|
return std::unique_ptr<node> (new string (s));
|
|
}
|
|
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<int32_t>::serialise (const int32_t &i) {
|
|
return std::unique_ptr<node> (new number (intmax_t {i}));
|
|
}
|
|
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<int64_t>::serialise (const int64_t &i) {
|
|
return std::unique_ptr<node> (new number (intmax_t {i}));
|
|
}
|
|
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<uint32_t>::serialise (const uint32_t &i) {
|
|
return std::unique_ptr<node> (new number (uintmax_t {i}));
|
|
}
|
|
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<uint64_t>::serialise (const uint64_t &i) {
|
|
return std::unique_ptr<node> (new number (uintmax_t {i}));
|
|
}
|
|
|
|
template <>
|
|
std::unique_ptr<node>
|
|
io<float>::serialise (const float &f) {
|
|
return std::unique_ptr<node> (new number (f));
|
|
}
|
|
}
|