94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
#pragma once
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#include <llvm/Support/JSON.h>
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#include <Support/Reflection.h>
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#include <array>
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namespace clice::json {
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using namespace llvm::json;
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template <typename T>
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constexpr inline bool is_array_v = false;
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template <typename T, std::size_t N>
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constexpr inline bool is_array_v<std::array<T, N>> = true;
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template <typename T>
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constexpr inline bool is_string_v = false;
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template <>
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constexpr inline bool is_string_v<std::string> = true;
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template <>
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constexpr inline bool is_string_v<std::string_view> = true;
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template <>
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constexpr inline bool is_string_v<llvm::StringRef> = true;
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template <typename T>
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constexpr inline bool is_integral_v =
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std::is_same_v<T, int> || std::is_same_v<T, unsigned> || std::is_same_v<T, long> || std::is_same_v<T, long long>;
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template <typename Value>
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json::Value serialize(const Value& value) {
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if constexpr(std::is_same_v<Value, bool>) {
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return value;
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} else if constexpr(is_integral_v<Value> || std::is_enum_v<Value>) {
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return static_cast<int64_t>(value);
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} else if constexpr(std::is_floating_point_v<Value>) {
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return static_cast<double>(value);
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} else if constexpr(is_string_v<Value>) {
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return llvm::StringRef(value);
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} else if constexpr(is_array_v<Value>) {
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json::Array array;
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for(const auto& element: value) {
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array.push_back(serialize(element));
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}
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return array;
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} else {
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json::Object object;
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for_each(value, [&](llvm::StringRef name, const auto& field) {
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object.try_emplace(name, serialize(field));
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});
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return object;
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}
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}
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template <typename T>
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T deserialize(const Object& object) {
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T result;
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for_each(result, [&]<typename Value>(llvm::StringRef name, Value& value) {
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if constexpr(is_array_v<Value>) {
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if(const auto* array = object.getArray(name)) {
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for(std::size_t i = 0; i < array->size(); ++i) {
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value[i] = deserialize<typename Value::value_type>((*array)[i]);
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}
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}
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} else if constexpr(std::is_same_v<Value, bool>) {
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if(auto boolean = object.getBoolean(name)) {
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value = *boolean;
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}
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} else if constexpr(is_integral_v<Value>) {
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if(auto integer = object.getInteger(name)) {
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value = *integer;
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}
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} else if constexpr(is_integral_v<Value>) {
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if(auto floating = object.getNumber(name)) {
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value = *floating;
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}
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} else if constexpr(std::is_same_v<Value, std::string>) {
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if(auto string = object.getString(name)) {
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value = *string;
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}
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} else {
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if(auto subobject = object.getObject(name)) {
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value = deserialize<Value>(*subobject);
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}
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}
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});
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return result;
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}
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} // namespace clice::json
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