Files
thirdparty-ArduinoJson/src/ArduinoJson/Variant/VariantImpl.hpp
2019-01-14 11:17:57 +01:00

132 lines
3.3 KiB
C++

// ArduinoJson - arduinojson.org
// Copyright Benoit Blanchon 2014-2018
// MIT License
#pragma once
#include "../Configuration.hpp"
#include "../Numbers/parseFloat.hpp"
#include "../Numbers/parseInteger.hpp"
#include "VariantRef.hpp"
#include <string.h> // for strcmp
namespace ARDUINOJSON_NAMESPACE {
template <typename T>
inline T VariantData::asIntegral() const {
switch (type()) {
case VALUE_IS_POSITIVE_INTEGER:
case VALUE_IS_BOOLEAN:
return T(_content.asInteger);
case VALUE_IS_NEGATIVE_INTEGER:
return T(~_content.asInteger + 1);
case VALUE_IS_LINKED_STRING:
case VALUE_IS_OWNED_STRING:
return parseInteger<T>(_content.asString);
case VALUE_IS_FLOAT:
return T(_content.asFloat);
default:
return 0;
}
}
// T = float/double
template <typename T>
inline T VariantData::asFloat() const {
switch (type()) {
case VALUE_IS_POSITIVE_INTEGER:
case VALUE_IS_BOOLEAN:
return static_cast<T>(_content.asInteger);
case VALUE_IS_NEGATIVE_INTEGER:
return -static_cast<T>(_content.asInteger);
case VALUE_IS_LINKED_STRING:
case VALUE_IS_OWNED_STRING:
return parseFloat<T>(_content.asString);
case VALUE_IS_FLOAT:
return static_cast<T>(_content.asFloat);
default:
return 0;
}
}
inline const char* VariantData::asString() const {
switch (type()) {
case VALUE_IS_LINKED_STRING:
case VALUE_IS_OWNED_STRING:
return _content.asString;
default:
return 0;
}
}
inline bool VariantRef::set(ArrayRef array) const {
return to<ArrayRef>().copyFrom(array);
}
inline bool VariantRef::set(ArrayConstRef array) const {
return to<ArrayRef>().copyFrom(array);
}
inline bool VariantRef::set(const ArraySubscript& value) const {
return set(value.as<VariantRef>());
}
inline bool VariantRef::set(ObjectRef object) const {
return to<ObjectRef>().copyFrom(object);
}
inline bool VariantRef::set(ObjectConstRef object) const {
return to<ObjectRef>().copyFrom(object);
}
template <typename TString>
inline bool VariantRef::set(const ObjectSubscript<TString>& value) const {
return set(value.template as<VariantRef>());
}
inline bool VariantRef::set(VariantConstRef value) const {
return variantCopyFrom(_data, value._data, _pool);
}
inline bool VariantRef::set(VariantRef value) const {
return variantCopyFrom(_data, value._data, _pool);
}
template <typename T>
inline typename enable_if<is_same<T, ArrayRef>::value, T>::type VariantRef::as()
const {
return ArrayRef(_pool, _data != 0 ? _data->asArray() : 0);
}
template <typename T>
inline typename enable_if<is_same<T, ObjectRef>::value, T>::type
VariantRef::as() const {
return ObjectRef(_pool, variantAsObject(_data));
}
template <typename T>
inline typename enable_if<is_same<T, ArrayRef>::value, ArrayRef>::type
VariantRef::to() const {
return ArrayRef(_pool, variantToArray(_data));
}
template <typename T>
typename enable_if<is_same<T, ObjectRef>::value, ObjectRef>::type
VariantRef::to() const {
return ObjectRef(_pool, variantToObject(_data));
}
template <typename T>
typename enable_if<is_same<T, VariantRef>::value, VariantRef>::type
VariantRef::to() const {
variantSetNull(_data);
return *this;
}
inline VariantConstRef VariantConstRef::operator[](size_t index) const {
return ArrayConstRef(_data != 0 ? _data->asArray() : 0)[index];
}
} // namespace ARDUINOJSON_NAMESPACE