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arduino-cli/libraries/ArduinoJson_6.x/ArduinoJson/Variant/VariantImpl.hpp

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+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2020
+// MIT License
+
+#pragma once
+
+#include <ArduinoJson/Array/ArrayRef.hpp>
+#include <ArduinoJson/Configuration.hpp>
+#include <ArduinoJson/Numbers/convertNumber.hpp>
+#include <ArduinoJson/Numbers/parseNumber.hpp>
+#include <ArduinoJson/Object/ObjectRef.hpp>
+#include <ArduinoJson/Variant/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 convertPositiveInteger<T>(_content.asInteger);
+    case VALUE_IS_NEGATIVE_INTEGER:
+      return convertNegativeInteger<T>(_content.asInteger);
+    case VALUE_IS_LINKED_STRING:
+    case VALUE_IS_OWNED_STRING:
+      return parseNumber<T>(_content.asString);
+    case VALUE_IS_FLOAT:
+      return convertFloat<T>(_content.asFloat);
+    default:
+      return 0;
+  }
+}
+
+inline bool VariantData::asBoolean() const {
+  switch (type()) {
+    case VALUE_IS_POSITIVE_INTEGER:
+    case VALUE_IS_BOOLEAN:
+    case VALUE_IS_NEGATIVE_INTEGER:
+      return _content.asInteger != 0;
+    case VALUE_IS_FLOAT:
+      return _content.asFloat != 0;
+    case VALUE_IS_NULL:
+      return false;
+    default:
+      return true;
+  }
+}
+
+// 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 parseNumber<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;
+  }
+}
+
+template <typename TVariant>
+typename enable_if<IsVisitable<TVariant>::value, bool>::type VariantRef::set(
+    const TVariant &value) const {
+  VariantConstRef v = value;
+  return variantCopyFrom(_data, v._data, _pool);
+}
+
+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::getElement(size_t index) const {
+  return ArrayConstRef(_data != 0 ? _data->asArray() : 0)[index];
+}
+
+inline VariantRef VariantRef::addElement() const {
+  return VariantRef(_pool, variantAddElement(_data, _pool));
+}
+
+inline VariantRef VariantRef::getElement(size_t index) const {
+  return VariantRef(_pool, _data != 0 ? _data->getElement(index) : 0);
+}
+
+inline VariantRef VariantRef::getOrAddElement(size_t index) const {
+  return VariantRef(_pool, variantGetOrAddElement(_data, index, _pool));
+}
+
+template <typename TChar>
+inline VariantRef VariantRef::getMember(TChar *key) const {
+  return VariantRef(_pool, _data != 0 ? _data->getMember(adaptString(key)) : 0);
+}
+
+template <typename TString>
+inline typename enable_if<IsString<TString>::value, VariantRef>::type
+VariantRef::getMember(const TString &key) const {
+  return VariantRef(_pool, _data != 0 ? _data->getMember(adaptString(key)) : 0);
+}
+
+template <typename TChar>
+inline VariantRef VariantRef::getOrAddMember(TChar *key) const {
+  return VariantRef(_pool, variantGetOrAddMember(_data, key, _pool));
+}
+
+template <typename TString>
+inline VariantRef VariantRef::getOrAddMember(const TString &key) const {
+  return VariantRef(_pool, variantGetOrAddMember(_data, key, _pool));
+}
+
+inline VariantConstRef operator|(VariantConstRef preferedValue,
+                                 VariantConstRef defaultValue) {
+  return preferedValue ? preferedValue : defaultValue;
+}
+}  // namespace ARDUINOJSON_NAMESPACE