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[core] Get rid of user-specified refs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,256 @@ | ||
| #pragma once | ||
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| #include <mbgl/style/filter.hpp> | ||
| #include <mbgl/style/property_value.hpp> | ||
| #include <mbgl/style/layout_property.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> | ||
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| #include <array> | ||
| #include <vector> | ||
| #include <unordered_map> | ||
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| namespace mbgl { | ||
| namespace style { | ||
| namespace conversion { | ||
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| template <class Writer> | ||
| void stringify(Writer& writer, NullValue) { | ||
| writer.Null(); | ||
| } | ||
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| template <class Writer> | ||
| void stringify(Writer& writer, bool v) { | ||
| writer.Bool(v); | ||
| } | ||
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| template <class Writer> | ||
| void stringify(Writer& writer, uint64_t v) { | ||
| writer.Uint64(v); | ||
| } | ||
|
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| template <class Writer> | ||
| void stringify(Writer& writer, int64_t v) { | ||
| writer.Int64(v); | ||
| } | ||
|
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| template <class Writer> | ||
| void stringify(Writer& writer, double v) { | ||
| writer.Double(v); | ||
| } | ||
|
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| template <class Writer> | ||
| void stringify(Writer& writer, const std::string& v) { | ||
| writer.String(v); | ||
| } | ||
|
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| 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)); | ||
| } | ||
|
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| template <class Writer> | ||
| void stringify(Writer& writer, const Color& v) { | ||
| writer.String(v.stringify()); | ||
| } | ||
|
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| 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(); | ||
| } | ||
|
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| 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(); | ||
| } | ||
|
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| template <class Writer> | ||
| void stringify(Writer&, const Value&); | ||
|
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| 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(); | ||
| } | ||
|
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| 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(); | ||
| } | ||
|
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| template <class Writer> | ||
| void stringify(Writer& writer, const Value& v) { | ||
| Value::visit(v, [&] (const auto& v_) { stringify(writer, v_); }); | ||
| } | ||
|
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| template <class Writer> | ||
| class StringifyFilter { | ||
| public: | ||
| Writer& writer; | ||
|
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| void operator()(const NullFilter&) { | ||
| writer.Null(); | ||
| } | ||
|
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| void operator()(const EqualsFilter& f) { | ||
| stringifyBinaryFilter(f, "=="); | ||
| } | ||
|
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| void operator()(const NotEqualsFilter& f) { | ||
| stringifyBinaryFilter(f, "!="); | ||
| } | ||
|
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| void operator()(const LessThanFilter& f) { | ||
| stringifyBinaryFilter(f, "<"); | ||
| } | ||
|
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| void operator()(const LessThanEqualsFilter& f) { | ||
| stringifyBinaryFilter(f, "<="); | ||
| } | ||
|
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| void operator()(const GreaterThanFilter& f) { | ||
| stringifyBinaryFilter(f, ">"); | ||
| } | ||
|
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| void operator()(const GreaterThanEqualsFilter& f) { | ||
| stringifyBinaryFilter(f, ">="); | ||
| } | ||
|
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| void operator()(const InFilter& f) { | ||
| stringifySetFilter(f, "in"); | ||
| } | ||
|
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| void operator()(const NotInFilter& f) { | ||
| stringifySetFilter(f, "!in"); | ||
| } | ||
|
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| void operator()(const AllFilter& f) { | ||
| stringifyCompoundFilter(f, "all"); | ||
| } | ||
|
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| void operator()(const AnyFilter& f) { | ||
| stringifyCompoundFilter(f, "any"); | ||
| } | ||
|
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| void operator()(const NoneFilter& f) { | ||
| stringifyCompoundFilter(f, "none"); | ||
| } | ||
|
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| void operator()(const HasFilter& f) { | ||
| stringifyUnaryFilter(f, "has"); | ||
| } | ||
|
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| void operator()(const NotHasFilter& f) { | ||
| stringifyUnaryFilter(f, "!has"); | ||
| } | ||
|
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| private: | ||
| template <class F> | ||
| void stringifyBinaryFilter(const F& f, const char * op) { | ||
| writer.StartArray(); | ||
| writer.String(op); | ||
| writer.String(f.key); | ||
| stringify(writer, f.value); | ||
| writer.EndArray(); | ||
| } | ||
|
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| template <class F> | ||
| void stringifySetFilter(const F& f, const char * op) { | ||
| writer.StartArray(); | ||
| writer.String(op); | ||
| writer.String(f.key); | ||
| for (const auto& value : f.values) { | ||
| stringify(writer, value); | ||
| } | ||
| writer.EndArray(); | ||
| } | ||
|
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| template <class F> | ||
| void stringifyCompoundFilter(const F& f, const char * op) { | ||
| writer.StartArray(); | ||
| writer.String(op); | ||
| for (const auto& filter : f.filters) { | ||
| Filter::visit(filter, *this); | ||
| } | ||
| writer.EndArray(); | ||
| } | ||
|
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| template <class F> | ||
| void stringifyUnaryFilter(const F& f, const char * op) { | ||
| writer.StartArray(); | ||
| writer.String(op); | ||
| writer.String(f.key); | ||
| writer.EndArray(); | ||
| } | ||
| }; | ||
|
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| template <class Writer> | ||
| void stringify(Writer& writer, const Filter& f) { | ||
| Filter::visit(f, StringifyFilter<Writer> { writer }); | ||
| } | ||
|
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| template <class Writer> | ||
| void stringify(Writer& writer, const Undefined&) { | ||
| assert(false); // Should be omitted entirely instead. | ||
| writer.Null(); | ||
| } | ||
|
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| template <class Writer, class T> | ||
| void stringify(Writer& writer, const Function<T>& f) { | ||
| writer.StartObject(); | ||
| writer.Key("base"); | ||
| writer.Double(f.getBase()); | ||
| writer.Key("stops"); | ||
| writer.StartArray(); | ||
| for (const auto& stop : f.getStops()) { | ||
| writer.StartArray(); | ||
| writer.Double(stop.first); | ||
| stringify(writer, stop.second); | ||
| writer.EndArray(); | ||
| } | ||
| writer.EndArray(); | ||
| writer.EndObject(); | ||
| } | ||
|
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| template <class Writer, class T> | ||
| void stringify(Writer& writer, const PropertyValue<T>& v) { | ||
| v.evaluate([&] (const auto& v_) { stringify(writer, v_); }); | ||
| } | ||
|
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| template <class Property, class Writer, class T> | ||
| void stringify(Writer& writer, const PropertyValue<T>& value) { | ||
| if (value) { | ||
| writer.Key(Property::key); | ||
| stringify(writer, value); | ||
| } | ||
| } | ||
|
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| template <class Writer, class... Ps> | ||
| void stringify(Writer& writer, const LayoutProperties<Ps...>& ps) { | ||
| writer.StartObject(); | ||
| util::ignore({ (stringify<Ps>(writer, ps.unevaluated.template get<Ps>()), 0)... }); | ||
| writer.EndObject(); | ||
| } | ||
|
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| } // namespace conversion | ||
| } // namespace style | ||
| } // namespace mbgl |
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