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ArduinoJson/src/ArduinoJson/Variant/SlotFunctions.hpp

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1.7 KiB
C++

// ArduinoJson - arduinojson.org
// Copyright Benoit Blanchon 2014-2020
// MIT License
#pragma once
#include <ArduinoJson/Polyfills/assert.hpp>
#include <ArduinoJson/Variant/VariantData.hpp>
namespace ARDUINOJSON_NAMESPACE {
template <typename TAdaptedString>
inline bool slotSetKey(VariantSlot* var, TAdaptedString key, MemoryPool* pool) {
if (!var)
return false;
return slotSetKey(var, key, pool, typename TAdaptedString::storage_policy());
}
template <typename TAdaptedString>
inline bool slotSetKey(VariantSlot* var, TAdaptedString key, MemoryPool* pool,
storage_policies::decide_at_runtime) {
if (key.isStatic()) {
return slotSetKey(var, key, pool, storage_policies::store_by_address());
} else {
return slotSetKey(var, key, pool, storage_policies::store_by_copy());
}
}
template <typename TAdaptedString>
inline bool slotSetKey(VariantSlot* var, TAdaptedString key, MemoryPool*,
storage_policies::store_by_address) {
ARDUINOJSON_ASSERT(var);
var->setKey(key.data(), storage_policies::store_by_address());
return true;
}
template <typename TAdaptedString>
inline bool slotSetKey(VariantSlot* var, TAdaptedString key, MemoryPool* pool,
storage_policies::store_by_copy) {
const char* dup = pool->saveString(key);
if (!dup)
return false;
ARDUINOJSON_ASSERT(var);
var->setKey(dup, storage_policies::store_by_copy());
return true;
}
inline size_t slotSize(const VariantSlot* var) {
size_t n = 0;
while (var) {
n++;
var = var->next();
}
return n;
}
inline VariantData* slotData(VariantSlot* slot) {
return reinterpret_cast<VariantData*>(slot);
}
} // namespace ARDUINOJSON_NAMESPACE