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diff --git a/include/lib/ArduinoJson/Serialization/JsonPrintable.hpp b/include/lib/ArduinoJson/Serialization/JsonPrintable.hpp
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+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#include "../Configuration.hpp"
+#include "../TypeTraits/EnableIf.hpp"
+#include "DummyPrint.hpp"
+#include "DynamicStringBuilder.hpp"
+#include "IndentedPrint.hpp"
+#include "JsonSerializer.hpp"
+#include "JsonWriter.hpp"
+#include "Prettyfier.hpp"
+#include "StaticStringBuilder.hpp"
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+#include "StreamPrintAdapter.hpp"
+#endif
+
+namespace ArduinoJson {
+namespace Internals {
+
+// Implements all the overloads of printTo() and prettyPrintTo()
+// Caution: this class use a template parameter to avoid virtual methods.
+// This is a bit curious but allows to reduce the size of JsonVariant, JsonArray
+// and JsonObject.
+template <typename T>
+class JsonPrintable {
+ public:
+ template <typename Print>
+ typename EnableIf<!StringTraits<Print>::has_append, size_t>::type printTo(
+ Print &print) const {
+ JsonWriter<Print> writer(print);
+ JsonSerializer<JsonWriter<Print> >::serialize(downcast(), writer);
+ return writer.bytesWritten();
+ }
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+ std::ostream &printTo(std::ostream &os) const {
+ StreamPrintAdapter adapter(os);
+ printTo(adapter);
+ return os;
+ }
+#endif
+
+ size_t printTo(char *buffer, size_t bufferSize) const {
+ StaticStringBuilder sb(buffer, bufferSize);
+ return printTo(sb);
+ }
+
+ template <size_t TN>
+ size_t printTo(char (&buffer)[TN]) const {
+ return printTo(buffer, TN);
+ }
+
+ template <typename TString>
+ typename EnableIf<StringTraits<TString>::has_append, size_t>::type printTo(
+ TString &str) const {
+ DynamicStringBuilder<TString> sb(str);
+ return printTo(sb);
+ }
+
+ template <typename Print>
+ size_t prettyPrintTo(IndentedPrint<Print> &print) const {
+ Prettyfier<Print> p(print);
+ return printTo(p);
+ }
+
+ size_t prettyPrintTo(char *buffer, size_t bufferSize) const {
+ StaticStringBuilder sb(buffer, bufferSize);
+ return prettyPrintTo(sb);
+ }
+
+ template <size_t TN>
+ size_t prettyPrintTo(char (&buffer)[TN]) const {
+ return prettyPrintTo(buffer, TN);
+ }
+
+ template <typename Print>
+ typename EnableIf<!StringTraits<Print>::has_append, size_t>::type
+ prettyPrintTo(Print &print) const {
+ IndentedPrint<Print> indentedPrint(print);
+ return prettyPrintTo(indentedPrint);
+ }
+
+ template <typename TString>
+ typename EnableIf<StringTraits<TString>::has_append, size_t>::type
+ prettyPrintTo(TString &str) const {
+ DynamicStringBuilder<TString> sb(str);
+ return prettyPrintTo(sb);
+ }
+
+ size_t measureLength() const {
+ DummyPrint dp;
+ return printTo(dp);
+ }
+
+ size_t measurePrettyLength() const {
+ DummyPrint dp;
+ return prettyPrintTo(dp);
+ }
+
+ private:
+ const T &downcast() const {
+ return *static_cast<const T *>(this);
+ }
+};
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+template <typename T>
+inline std::ostream &operator<<(std::ostream &os, const JsonPrintable<T> &v) {
+ return v.printTo(os);
+}
+#endif
+}
+}