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https://github.com/eledio-devices/thirdparty-ArduinoJson.git
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58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
// ArduinoJson - arduinojson.org
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// Copyright Benoit Blanchon 2014-2021
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// MIT License
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#pragma once
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#include <ArduinoJson/Strings/IsWriteableString.hpp>
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#include <ArduinoJson/Variant/VariantFunctions.hpp>
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#include <ArduinoJson/Variant/VariantRef.hpp>
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namespace ARDUINOJSON_NAMESPACE {
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template <typename T>
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inline typename enable_if<is_same<ArrayConstRef, T>::value, T>::type variantAs(
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const VariantData* _data) {
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return ArrayConstRef(variantAsArray(_data));
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}
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template <typename T>
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inline typename enable_if<is_same<ObjectConstRef, T>::value, T>::type variantAs(
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const VariantData* _data) {
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return ObjectConstRef(variantAsObject(_data));
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}
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template <typename T>
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inline typename enable_if<is_same<VariantConstRef, T>::value, T>::type
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variantAs(const VariantData* _data) {
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return VariantConstRef(_data);
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}
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template <typename T>
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inline typename enable_if<IsWriteableString<T>::value, T>::type variantAs(
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const VariantData* _data) {
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const char* cstr = _data != 0 ? _data->asString() : 0;
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if (cstr)
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return T(cstr);
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T s;
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serializeJson(VariantConstRef(_data), s);
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return s;
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}
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template <>
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inline ArrayRef variantAs<ArrayRef>(VariantData* data, MemoryPool* pool) {
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return ArrayRef(pool, data != 0 ? data->asArray() : 0);
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}
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template <>
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inline ObjectRef variantAs<ObjectRef>(VariantData* data, MemoryPool* pool) {
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return ObjectRef(pool, data != 0 ? data->asObject() : 0);
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}
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template <>
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inline VariantRef variantAs<VariantRef>(VariantData* data, MemoryPool* pool) {
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return VariantRef(pool, data);
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}
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} // namespace ARDUINOJSON_NAMESPACE
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