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#pragma once
#include <mbgl/style/filter.hpp>
#include <mbgl/style/property_value.hpp>
#include <mbgl/style/expression/value.hpp>
#include <mbgl/style/expression/formatted.hpp>
#include <mbgl/util/enum.hpp>
#include <mbgl/util/color.hpp>
#include <mbgl/util/feature.hpp>
#include <mbgl/util/ignore.hpp>
#include <mbgl/util/rapidjson.hpp>
#include <array>
#include <vector>
#include <unordered_map>
namespace mbgl {
namespace style {
namespace conversion {
template <class Writer>
void stringify(Writer& writer, NullValue) {
writer.Null();
}
template <class Writer>
void stringify(Writer& writer, bool v) {
writer.Bool(v);
}
template <class Writer>
void stringify(Writer& writer, uint64_t v) {
writer.Uint64(v);
}
template <class Writer>
void stringify(Writer& writer, int64_t v) {
writer.Int64(v);
}
template <class Writer>
void stringify(Writer& writer, double v) {
writer.Double(v);
}
template <class Writer>
void stringify(Writer& writer, const std::string& v) {
writer.String(v);
}
template <class Writer, class T, class Enable = std::enable_if_t<std::is_enum<T>::value>>
void stringify(Writer& writer, const T& v) {
writer.String(Enum<T>::toString(v));
}
template <class Writer>
void stringify(Writer& writer, const Color& v) {
writer.String(v.stringify());
}
template <class Writer>
void stringify(Writer& writer, const std::array<float, 2>& v) {
writer.StartArray();
writer.Double(v[0]);
writer.Double(v[1]);
writer.EndArray();
}
template <class Writer>
void stringify(Writer& writer, const std::array<float, 4>& v) {
writer.StartArray();
writer.Double(v[0]);
writer.Double(v[1]);
writer.Double(v[2]);
writer.Double(v[3]);
writer.EndArray();
}
template <class Writer>
void stringify(Writer&, const Value&);
template <class Writer, class T>
void stringify(Writer& writer, const std::vector<T>& v) {
writer.StartArray();
for (const auto& e : v) {
stringify(writer, e);
}
writer.EndArray();
}
template <class Writer, class T>
void stringify(Writer& writer, const std::unordered_map<std::string, T>& m) {
writer.StartObject();
for (const auto& p : m) {
writer.Key(p.first.data(), static_cast<unsigned>(p.first.size()));
stringify(writer, p.second);
}
writer.EndObject();
}
template <class Writer>
void stringify(Writer& writer, const Value& v) {
Value::visit(v, [&] (const auto& v_) { stringify(writer, v_); });
}
template <class Writer>
void stringify(Writer& writer, FeatureType type) {
switch (type) {
case FeatureType::Unknown:
writer.String("Unknown");
break;
case FeatureType::Point:
writer.String("Point");
break;
case FeatureType::LineString:
writer.String("LineString");
break;
case FeatureType::Polygon:
writer.String("Polygon");
break;
}
}
template <class Writer>
void stringify(Writer& writer, const FeatureIdentifier& id) {
FeatureIdentifier::visit(id, [&] (const auto& id_) { stringify(writer, id_); });
}
template <class Writer>
void stringify(Writer& writer, const Filter& filter) {
if (!filter.expression) writer.Null();
else stringify(writer, (*filter.expression)->serialize());
}
template <class Writer>
void stringify(Writer& writer, const expression::Formatted& v) {
// Convert to mbgl::Value and then use the existing stringify
// Serialization strategy for Formatted objects is to return the constant
// expression that would generate them.
stringify(writer, expression::ValueConverter<mbgl::Value>::fromExpressionValue(v));
}
template <class Writer>
void stringify(Writer& writer, const Undefined&) {
assert(false); // Should be omitted entirely instead.
writer.Null();
}
template <class Writer, class T>
void stringify(Writer& writer, const PropertyExpression<T>& fn) {
stringify(writer, fn.getExpression().serialize());
}
template <class Writer, class T>
void stringify(Writer& writer, const PropertyValue<T>& v) {
v.evaluate([&] (const auto& v_) { stringify(writer, v_); });
}
template <class Property, class Writer, class T>
void stringify(Writer& writer, const PropertyValue<T>& value) {
if (!value.isUndefined()) {
writer.Key(Property::name());
stringify(writer, value);
}
}
} // namespace conversion
} // namespace style
} // namespace mbgl
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