Move JsonPrintable into Internals/

include/ArduinoJson/Internals/JsonPrintable.hpp

@@ -0,0 +1,48 @@
+// Copyright Benoit Blanchon 2014
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+
+#pragma once
+
+#include "IndentedPrint.hpp"
+#include "PrettyJsonWriter.hpp"
+#include "StringBuilder.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+template <typename T>
+class JsonPrintable {
+ public:
+  size_t printTo(Print &print) const {
+    JsonWriter writer(&print);
+    downcast().writeTo(writer);
+    return writer.bytesWritten();
+  }
+  size_t printTo(char *buffer, size_t bufferSize) const {
+    StringBuilder sb(buffer, bufferSize);
+    return printTo(sb);
+  }
+
+  size_t prettyPrintTo(IndentedPrint &print) const {
+    PrettyJsonWriter writer(&print);
+    downcast().writeTo(writer);
+    return writer.bytesWritten();
+  }
+
+  size_t prettyPrintTo(char *buffer, size_t bufferSize) const {
+    StringBuilder sb(buffer, bufferSize);
+    return prettyPrintTo(sb);
+  }
+  size_t prettyPrintTo(Print &print) const {
+    IndentedPrint indentedPrint = IndentedPrint(print);
+    return prettyPrintTo(indentedPrint);
+  }
+
+ private:
+  const T &downcast() const { return *static_cast<const T *>(this); }
+};
+}
+}