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#include "jsonParse-persistence.h"
#include <algorithm>
#include <array>
#include <iomanip>
#include <ostream>
#include <type_traits>
#include <utility>
namespace Persistence {
void
JsonParsePersistence::loadState(std::istream & in)
{
this->switch_streams(&in, nullptr);
yy_push_state(0);
yylex();
}
void
JsonParsePersistence::beginObject()
{
current()->beforeValue(stk);
current()->beginObject(stk);
}
void
JsonParsePersistence::beginArray()
{
current()->beforeValue(stk);
current()->beginArray(stk);
}
void
JsonParsePersistence::pushBoolean(bool value)
{
pushValue(value);
}
void
JsonParsePersistence::pushNumber(float value)
{
pushValue(value);
}
void
JsonParsePersistence::pushNull()
{
pushValue(nullptr);
}
void
JsonParsePersistence::pushText(std::string && value)
{
pushValue(std::move(value));
}
void
JsonParsePersistence::pushKey(std::string && k)
{
stk.push(current()->select(k));
}
void
JsonParsePersistence::endArray()
{
stk.pop();
stk.pop();
}
void
JsonParsePersistence::endObject()
{
current()->endObject(stk);
current()->endObject(stk);
}
template<typename T>
inline void
JsonParsePersistence::pushValue(T && value)
{
current()->beforeValue(stk);
current()->setValue(std::forward<T>(value));
stk.pop();
}
inline SelectionPtr &
JsonParsePersistence::current()
{
return stk.top();
}
static inline void
wrv(std::ostream & strm, char ch)
{
strm.put(ch);
}
static inline void
wrh(std::ostream & strm, char ch)
{
using namespace std::literals;
strm << R"(\u)"sv << std::setw(4) << std::hex << static_cast<int>(ch) << std::setw(1);
}
static inline void
wre(std::ostream & strm, char e)
{
strm << '\\' << e;
}
template<char E>
static inline void
wre(std::ostream & strm, char)
{
wre(strm, E);
}
using OutFunc = void (*)(std::ostream &, char);
using OutFuncs = std::array<OutFunc, 255>;
static constexpr OutFuncs outFuncs {[]() {
OutFuncs outFuncs;
outFuncs.fill(&wrv);
for (auto x = 0U; x < 0x20U; x += 1) {
outFuncs[x] = &wrh;
}
outFuncs['\"'] = &wre<'"'>;
outFuncs['\\'] = &wre<'\\'>;
outFuncs['\b'] = &wre<'b'>;
outFuncs['\f'] = &wre<'f'>;
outFuncs['\n'] = &wre<'n'>;
outFuncs['\r'] = &wre<'r'>;
outFuncs['\t'] = &wre<'t'>;
return outFuncs;
}()};
JsonWritePersistence::JsonWritePersistence(std::ostream & s) : strm {s}
{
strm << std::boolalpha // for Boolean
<< std::defaultfloat // for Number
<< std::setfill('0'); // for String \uNNNN
}
void
JsonWritePersistence::beginObject() const
{
strm << '{';
}
void
JsonWritePersistence::beginArray() const
{
strm << '[';
}
void
JsonWritePersistence::pushValue(bool value) const
{
strm << value;
}
void
JsonWritePersistence::pushValue(float value) const
{
strm << value;
}
void
JsonWritePersistence::pushValue(std::nullptr_t) const
{
strm << "null";
}
void
JsonWritePersistence::pushValue(const std::string_view value) const
{
strm << '"';
std::for_each(value.begin(), value.end(), [this](char ch) {
outFuncs[static_cast<unsigned char>(ch)](strm, ch);
});
strm << '"';
}
void
JsonWritePersistence::nextValue() const
{
strm << ',';
}
void
JsonWritePersistence::pushKey(const std::string_view k) const
{
pushValue(k);
strm << ':';
}
void
JsonWritePersistence::endArray() const
{
strm << ']';
}
void
JsonWritePersistence::endObject() const
{
strm << '}';
}
}
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