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// ArduinoJson - https://arduinojson.org
// Copyright Benoit Blanchon 2014-2021
// MIT License
#pragma once
#include <ArduinoJson/Array/ArrayRef.hpp>
#include <ArduinoJson/Document/JsonDocument.hpp>
#include <ArduinoJson/Variant/Visitor.hpp>
namespace ARDUINOJSON_NAMESPACE {
// Copy a 1D array to a JsonArray
template <typename T, size_t N, typename TDestination>
inline typename enable_if<!is_array<T>::value &&
!is_base_of<JsonDocument, TDestination>::value,
bool>::type
copyArray(T (&src)[N], const TDestination& dst) {
return copyArray(src, N, dst);
}
// Copy a 1D array to a JsonDocument
template <typename T, size_t N>
inline bool copyArray(T (&src)[N], JsonDocument& dst) {
return copyArray(src, dst.to<ArrayRef>());
}
// Copy a 1D array to a JsonArray
template <typename T, typename TDestination>
inline typename enable_if<!is_array<T>::value &&
!is_base_of<JsonDocument, TDestination>::value,
bool>::type
copyArray(T* src, size_t len, const TDestination& dst) {
bool ok = true;
for (size_t i = 0; i < len; i++) {
ok &= dst.add(src[i]);
}
return ok;
}
// Copy a 1D array to a JsonDocument
template <typename T>
inline bool copyArray(T* src, size_t len, JsonDocument& dst) {
return copyArray(src, len, dst.to<ArrayRef>());
}
// Copy a 2D array to a JsonArray
template <typename T, size_t N1, size_t N2, typename TDestination>
inline typename enable_if<!is_base_of<JsonDocument, TDestination>::value,
bool>::type
copyArray(T (&src)[N1][N2], const TDestination& dst) {
bool ok = true;
for (size_t i = 0; i < N1; i++) {
ArrayRef nestedArray = dst.createNestedArray();
for (size_t j = 0; j < N2; j++) {
ok &= nestedArray.add(src[i][j]);
}
}
return ok;
}
// Copy a 2D array to a JsonDocument
template <typename T, size_t N1, size_t N2>
inline bool copyArray(T (&src)[N1][N2], JsonDocument& dst) {
return copyArray(src, dst.to<ArrayRef>());
}
template <typename T>
class ArrayCopier1D : public Visitor<size_t> {
public:
ArrayCopier1D(T* destination, size_t capacity)
: _destination(destination), _capacity(capacity) {}
size_t visitArray(const CollectionData& array) {
size_t size = 0;
VariantSlot* slot = array.head();
while (slot != 0 && size < _capacity) {
_destination[size++] =
Converter<T>::fromJson(VariantConstRef(slot->data()));
slot = slot->next();
}
return size;
}
private:
T* _destination;
size_t _capacity;
};
template <typename T, size_t N1, size_t N2>
class ArrayCopier2D : public Visitor<void> {
public:
ArrayCopier2D(T (*destination)[N1][N2]) : _destination(destination) {}
void visitArray(const CollectionData& array) {
VariantSlot* slot = array.head();
size_t n = 0;
while (slot != 0 && n < N1) {
ArrayCopier1D<T> copier((*_destination)[n++], N2);
variantAccept(slot->data(), copier);
slot = slot->next();
}
}
private:
T (*_destination)[N1][N2];
size_t _capacity1, _capacity2;
};
// Copy a JsonArray to a 1D array
template <typename TSource, typename T, size_t N>
inline typename enable_if<!is_array<T>::value, size_t>::type copyArray(
const TSource& src, T (&dst)[N]) {
return copyArray(src, dst, N);
}
// Copy a JsonArray to a 1D array
template <typename TSource, typename T>
inline size_t copyArray(const TSource& src, T* dst, size_t len) {
ArrayCopier1D<T> copier(dst, len);
return src.accept(copier);
}
// Copy a JsonArray to a 2D array
template <typename TSource, typename T, size_t N1, size_t N2>
inline void copyArray(const TSource& src, T (&dst)[N1][N2]) {
ArrayCopier2D<T, N1, N2> copier(&dst);
src.accept(copier);
}
} // namespace ARDUINOJSON_NAMESPACE
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