From 4f6253aa9fec99260b8bb7b9b2e9003f5259b600 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Mon, 17 Sep 2018 10:02:07 +0200
Subject: Import arduinojson and ubjson. Only partially working at the moment

---
 include/lib/ArduinoJson/JsonVariant.hpp | 355 ++++++++++++++++++++++++++++++++
 1 file changed, 355 insertions(+)
 create mode 100644 include/lib/ArduinoJson/JsonVariant.hpp

(limited to 'include/lib/ArduinoJson/JsonVariant.hpp')

diff --git a/include/lib/ArduinoJson/JsonVariant.hpp b/include/lib/ArduinoJson/JsonVariant.hpp
new file mode 100644
index 0000000..8326cbe
--- /dev/null
+++ b/include/lib/ArduinoJson/JsonVariant.hpp
@@ -0,0 +1,355 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>  // for uint8_t
+
+#include "Data/JsonVariantContent.hpp"
+#include "Data/JsonVariantDefault.hpp"
+#include "Data/JsonVariantType.hpp"
+#include "JsonVariantBase.hpp"
+#include "RawJson.hpp"
+#include "Serialization/JsonPrintable.hpp"
+#include "TypeTraits/EnableIf.hpp"
+#include "TypeTraits/IsChar.hpp"
+#include "TypeTraits/IsFloatingPoint.hpp"
+#include "TypeTraits/IsIntegral.hpp"
+#include "TypeTraits/IsSame.hpp"
+#include "TypeTraits/IsSignedIntegral.hpp"
+#include "TypeTraits/IsUnsignedIntegral.hpp"
+#include "TypeTraits/RemoveConst.hpp"
+#include "TypeTraits/RemoveReference.hpp"
+
+namespace ArduinoJson {
+
+// Forward declarations.
+class JsonArray;
+class JsonObject;
+
+// A variant that can be a any value serializable to a JSON value.
+//
+// It can be set to:
+// - a boolean
+// - a char, short, int or a long (signed or unsigned)
+// - a string (const char*)
+// - a reference to a JsonArray or JsonObject
+class JsonVariant : public Internals::JsonVariantBase<JsonVariant> {
+  template <typename Print>
+  friend class Internals::JsonSerializer;
+
+ public:
+  // Creates an uninitialized JsonVariant
+  JsonVariant() : _type(Internals::JSON_UNDEFINED) {}
+
+  // Create a JsonVariant containing a boolean value.
+  // It will be serialized as "true" or "false" in JSON.
+  JsonVariant(bool value) {
+    using namespace Internals;
+    _type = JSON_BOOLEAN;
+    _content.asInteger = static_cast<JsonUInt>(value);
+  }
+
+  // Create a JsonVariant containing a floating point value.
+  // JsonVariant(double value);
+  // JsonVariant(float value);
+  template <typename T>
+  JsonVariant(T value, typename Internals::EnableIf<
+                           Internals::IsFloatingPoint<T>::value>::type * = 0) {
+    using namespace Internals;
+    _type = JSON_FLOAT;
+    _content.asFloat = static_cast<JsonFloat>(value);
+  }
+  template <typename T>
+  DEPRECATED("Second argument is not supported anymore")
+  JsonVariant(T value, uint8_t,
+              typename Internals::EnableIf<
+                  Internals::IsFloatingPoint<T>::value>::type * = 0) {
+    using namespace Internals;
+    _type = JSON_FLOAT;
+    _content.asFloat = static_cast<JsonFloat>(value);
+  }
+
+  // Create a JsonVariant containing an integer value.
+  // JsonVariant(char)
+  // JsonVariant(signed short)
+  // JsonVariant(signed int)
+  // JsonVariant(signed long)
+  // JsonVariant(signed char)
+  template <typename T>
+  JsonVariant(
+      T value,
+      typename Internals::EnableIf<Internals::IsSignedIntegral<T>::value ||
+                                   Internals::IsSame<T, char>::value>::type * =
+          0) {
+    using namespace Internals;
+    if (value >= 0) {
+      _type = JSON_POSITIVE_INTEGER;
+      _content.asInteger = static_cast<JsonUInt>(value);
+    } else {
+      _type = JSON_NEGATIVE_INTEGER;
+      _content.asInteger = static_cast<JsonUInt>(-value);
+    }
+  }
+  // JsonVariant(unsigned short)
+  // JsonVariant(unsigned int)
+  // JsonVariant(unsigned long)
+  template <typename T>
+  JsonVariant(T value,
+              typename Internals::EnableIf<
+                  Internals::IsUnsignedIntegral<T>::value>::type * = 0) {
+    using namespace Internals;
+    _type = JSON_POSITIVE_INTEGER;
+    _content.asInteger = static_cast<JsonUInt>(value);
+  }
+
+  // Create a JsonVariant containing a string.
+  // JsonVariant(const char*);
+  // JsonVariant(const signed char*);
+  // JsonVariant(const unsigned char*);
+  template <typename TChar>
+  JsonVariant(
+      const TChar *value,
+      typename Internals::EnableIf<Internals::IsChar<TChar>::value>::type * =
+          0) {
+    _type = Internals::JSON_STRING;
+    _content.asString = reinterpret_cast<const char *>(value);
+  }
+
+  // Create a JsonVariant containing an unparsed string
+  JsonVariant(Internals::RawJsonString<const char *> value) {
+    _type = Internals::JSON_UNPARSED;
+    _content.asString = value;
+  }
+
+  // Create a JsonVariant containing a reference to an array.
+  // CAUTION: we are lying about constness, because the array can be modified if
+  // the variant is converted back to a JsonArray&
+  JsonVariant(const JsonArray &array);
+
+  // Create a JsonVariant containing a reference to an object.
+  // CAUTION: we are lying about constness, because the object can be modified
+  // if the variant is converted back to a JsonObject&
+  JsonVariant(const JsonObject &object);
+
+  // Get the variant as the specified type.
+  //
+  // char as<char>() const;
+  // signed char as<signed char>() const;
+  // signed short as<signed short>() const;
+  // signed int as<signed int>() const;
+  // signed long as<signed long>() const;
+  // unsigned char as<unsigned char>() const;
+  // unsigned short as<unsigned short>() const;
+  // unsigned int as<unsigned int>() const;
+  // unsigned long as<unsigned long>() const;
+  template <typename T>
+  const typename Internals::EnableIf<Internals::IsIntegral<T>::value, T>::type
+  as() const {
+    return variantAsInteger<T>();
+  }
+  // bool as<bool>() const
+  template <typename T>
+  const typename Internals::EnableIf<Internals::IsSame<T, bool>::value, T>::type
+  as() const {
+    return variantAsInteger<int>() != 0;
+  }
+  //
+  // double as<double>() const;
+  // float as<float>() const;
+  template <typename T>
+  const typename Internals::EnableIf<Internals::IsFloatingPoint<T>::value,
+                                     T>::type
+  as() const {
+    return variantAsFloat<T>();
+  }
+  //
+  // const char* as<const char*>() const;
+  // const char* as<char*>() const;
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsSame<T, const char *>::value ||
+                                   Internals::IsSame<T, char *>::value,
+                               const char *>::type
+  as() const {
+    return variantAsString();
+  }
+  //
+  // std::string as<std::string>() const;
+  // String as<String>() const;
+  template <typename T>
+  typename Internals::EnableIf<Internals::StringTraits<T>::has_append, T>::type
+  as() const {
+    const char *cstr = variantAsString();
+    if (cstr) return T(cstr);
+    T s;
+    printTo(s);
+    return s;
+  }
+  //
+  // JsonArray& as<JsonArray> const;
+  // JsonArray& as<JsonArray&> const;
+  template <typename T>
+  typename Internals::EnableIf<
+      Internals::IsSame<typename Internals::RemoveReference<T>::type,
+                        JsonArray>::value,
+      JsonArray &>::type
+  as() const {
+    return variantAsArray();
+  }
+  //
+  // const JsonArray& as<const JsonArray&> const;
+  template <typename T>
+  typename Internals::EnableIf<
+      Internals::IsSame<typename Internals::RemoveReference<T>::type,
+                        const JsonArray>::value,
+      const JsonArray &>::type
+  as() const {
+    return variantAsArray();
+  }
+  //
+  // JsonObject& as<JsonObject> const;
+  // JsonObject& as<JsonObject&> const;
+  template <typename T>
+  typename Internals::EnableIf<
+      Internals::IsSame<typename Internals::RemoveReference<T>::type,
+                        JsonObject>::value,
+      JsonObject &>::type
+  as() const {
+    return variantAsObject();
+  }
+  //
+  // JsonObject& as<const JsonObject> const;
+  // JsonObject& as<const JsonObject&> const;
+  template <typename T>
+  typename Internals::EnableIf<
+      Internals::IsSame<typename Internals::RemoveReference<T>::type,
+                        const JsonObject>::value,
+      const JsonObject &>::type
+  as() const {
+    return variantAsObject();
+  }
+  //
+  // JsonVariant as<JsonVariant> const;
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsSame<T, JsonVariant>::value,
+                               T>::type
+  as() const {
+    return *this;
+  }
+
+  // Tells weither the variant has the specified type.
+  // Returns true if the variant has type type T, false otherwise.
+  //
+  // bool is<char>() const;
+  // bool is<signed char>() const;
+  // bool is<signed short>() const;
+  // bool is<signed int>() const;
+  // bool is<signed long>() const;
+  // bool is<unsigned char>() const;
+  // bool is<unsigned short>() const;
+  // bool is<unsigned int>() const;
+  // bool is<unsigned long>() const;
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsIntegral<T>::value, bool>::type is()
+      const {
+    return variantIsInteger();
+  }
+  //
+  // bool is<double>() const;
+  // bool is<float>() const;
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsFloatingPoint<T>::value, bool>::type
+  is() const {
+    return variantIsFloat();
+  }
+  //
+  // bool is<bool>() const
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsSame<T, bool>::value, bool>::type
+  is() const {
+    return variantIsBoolean();
+  }
+  //
+  // bool is<const char*>() const;
+  // bool is<char*>() const;
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsSame<T, const char *>::value ||
+                                   Internals::IsSame<T, char *>::value,
+                               bool>::type
+  is() const {
+    return variantIsString();
+  }
+  //
+  // bool is<JsonArray> const;
+  // bool is<JsonArray&> const;
+  // bool is<const JsonArray&> const;
+  template <typename T>
+  typename Internals::EnableIf<
+      Internals::IsSame<typename Internals::RemoveConst<
+                            typename Internals::RemoveReference<T>::type>::type,
+                        JsonArray>::value,
+      bool>::type
+  is() const {
+    return variantIsArray();
+  }
+  //
+  // bool is<JsonObject> const;
+  // bool is<JsonObject&> const;
+  // bool is<const JsonObject&> const;
+  template <typename T>
+  typename Internals::EnableIf<
+      Internals::IsSame<typename Internals::RemoveConst<
+                            typename Internals::RemoveReference<T>::type>::type,
+                        JsonObject>::value,
+      bool>::type
+  is() const {
+    return variantIsObject();
+  }
+
+  // Returns true if the variant has a value
+  bool success() const {
+    return _type != Internals::JSON_UNDEFINED;
+  }
+
+ private:
+  JsonArray &variantAsArray() const;
+  JsonObject &variantAsObject() const;
+  const char *variantAsString() const;
+  template <typename T>
+  T variantAsFloat() const;
+  template <typename T>
+  T variantAsInteger() const;
+  bool variantIsBoolean() const;
+  bool variantIsFloat() const;
+  bool variantIsInteger() const;
+  bool variantIsArray() const {
+    return _type == Internals::JSON_ARRAY;
+  }
+  bool variantIsObject() const {
+    return _type == Internals::JSON_OBJECT;
+  }
+  bool variantIsString() const {
+    return _type == Internals::JSON_STRING ||
+           (_type == Internals::JSON_UNPARSED && _content.asString &&
+            !strcmp("null", _content.asString));
+  }
+
+  // The current type of the variant
+  Internals::JsonVariantType _type;
+
+  // The various alternatives for the value of the variant.
+  Internals::JsonVariantContent _content;
+};
+
+DEPRECATED("Decimal places are ignored, use the float value instead")
+inline JsonVariant float_with_n_digits(float value, uint8_t) {
+  return JsonVariant(value);
+}
+
+DEPRECATED("Decimal places are ignored, use the double value instead")
+inline JsonVariant double_with_n_digits(double value, uint8_t) {
+  return JsonVariant(value);
+}
+}
-- 
cgit v1.2.3