Added serializeMsgPack() and measureMsgPack() (closes #358)

src/ArduinoJson/Deserialization/ArduinoStreamReader.hpp

@@ -0,0 +1,41 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#if ARDUINOJSON_ENABLE_ARDUINO_STREAM
+
+#include <Stream.h>
+
+namespace ArduinoJson {
+namespace Internals {
+
+struct ArduinoStreamReader {
+  Stream& _stream;
+  char _current;
+  bool _ended;
+
+ public:
+  explicit ArduinoStreamReader(Stream& stream)
+      : _stream(stream), _current(0), _ended(false) {}
+
+  char read() {
+    // don't use _stream.read() as it ignores the timeout
+    char c = 0;
+    _ended = _stream.readBytes(&c, 1) == 0;
+    return c;
+  }
+
+  bool ended() const {
+    return _ended;
+  }
+};
+
+inline ArduinoStreamReader makeReader(Stream& input) {
+  return ArduinoStreamReader(input);
+}
+}  // namespace Internals
+}  // namespace ArduinoJson
+
+#endif

src/ArduinoJson/Deserialization/CharPointerReader.hpp

@@ -0,0 +1,64 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+namespace ArduinoJson {
+namespace Internals {
+
+template <typename TChar>
+class UnsafeCharPointerReader {
+  const TChar* _ptr;
+
+ public:
+  explicit UnsafeCharPointerReader(const TChar* ptr)
+      : _ptr(ptr ? ptr : reinterpret_cast<const TChar*>("")) {}
+
+  char read() {
+    return static_cast<char>(*_ptr++);
+  }
+
+  bool ended() const {
+    // we cannot know
+    return false;
+  }
+};
+
+template <typename TChar>
+class SafeCharPointerReader {
+  const TChar* _ptr;
+  const TChar* _end;
+
+ public:
+  explicit SafeCharPointerReader(const TChar* ptr, size_t len)
+      : _ptr(ptr ? ptr : reinterpret_cast<const TChar*>("")),
+        _end(_ptr + len) {}
+
+  char read() {
+    return static_cast<char>(*_ptr++);
+  }
+
+  bool ended() const {
+    return _ptr == _end;
+  }
+};
+
+template <typename TChar>
+inline UnsafeCharPointerReader<TChar> makeReader(TChar* input) {
+  return UnsafeCharPointerReader<TChar>(input);
+}
+
+template <typename TChar>
+inline SafeCharPointerReader<TChar> makeReader(TChar* input, size_t n) {
+  return SafeCharPointerReader<TChar>(input, n);
+}
+
+#if ARDUINOJSON_ENABLE_ARDUINO_STRING
+inline SafeCharPointerReader<char> makeReader(const String& input) {
+  return SafeCharPointerReader<char>(input.c_str(), input.length());
+}
+#endif
+
+}  // namespace Internals
+}  // namespace ArduinoJson

src/ArduinoJson/Deserialization/DeserializationError.hpp

@@ -0,0 +1,83 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+#include <ostream>
+#endif
+
+namespace ArduinoJson {
+
+class DeserializationError {
+ public:
+  enum Code {
+    Ok,
+    IncompleteInput,
+    InvalidInput,
+    NoMemory,
+    NotSupported,
+    TooDeep
+  };
+
+  DeserializationError() {}
+  DeserializationError(Code code) : _code(code) {}
+
+  friend bool operator==(const DeserializationError& err, Code code) {
+    return err._code == code;
+  }
+
+  friend bool operator==(Code code, const DeserializationError& err) {
+    return err._code == code;
+  }
+
+  friend bool operator!=(const DeserializationError& err, Code code) {
+    return err._code != code;
+  }
+
+  friend bool operator!=(Code code, const DeserializationError& err) {
+    return err._code != code;
+  }
+
+  operator bool() const {
+    return _code != Ok;
+  }
+
+  const char* c_str() const {
+    switch (_code) {
+      case Ok:
+        return "Ok";
+      case TooDeep:
+        return "TooDeep";
+      case NoMemory:
+        return "NoMemory";
+      case InvalidInput:
+        return "InvalidInput";
+      case IncompleteInput:
+        return "IncompleteInput";
+      case NotSupported:
+        return "NotSupported";
+      default:
+        return "???";
+    }
+  }
+
+ private:
+  Code _code;
+};
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+inline std::ostream& operator<<(std::ostream& s,
+                                const DeserializationError& e) {
+  s << e.c_str();
+  return s;
+}
+
+inline std::ostream& operator<<(std::ostream& s, DeserializationError::Code c) {
+  s << DeserializationError(c).c_str();
+  return s;
+}
+#endif
+
+}  // namespace ArduinoJson

src/ArduinoJson/Deserialization/FlashStringReader.hpp

@@ -0,0 +1,56 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#if ARDUINOJSON_ENABLE_PROGMEM
+
+namespace ArduinoJson {
+namespace Internals {
+class UnsafeFlashStringReader {
+  const char* _ptr;
+
+ public:
+  explicit UnsafeFlashStringReader(const __FlashStringHelper* ptr)
+      : _ptr(reinterpret_cast<const char*>(ptr)) {}
+
+  char read() {
+    return pgm_read_byte_near(_ptr++);
+  }
+
+  bool ended() const {
+    // this reader cannot detect the end
+    return false;
+  }
+};
+
+class SafeFlashStringReader {
+  const char* _ptr;
+  const char* _end;
+
+ public:
+  explicit SafeFlashStringReader(const __FlashStringHelper* ptr, size_t size)
+      : _ptr(reinterpret_cast<const char*>(ptr)), _end(_ptr + size) {}
+
+  char read() {
+    return pgm_read_byte_near(_ptr++);
+  }
+
+  bool ended() const {
+    return _ptr == _end;
+  }
+};
+
+inline UnsafeFlashStringReader makeReader(const __FlashStringHelper* input) {
+  return UnsafeFlashStringReader(input);
+}
+
+inline SafeFlashStringReader makeReader(const __FlashStringHelper* input,
+                                        size_t size) {
+  return SafeFlashStringReader(input, size);
+}
+}  // namespace Internals
+}  // namespace ArduinoJson
+
+#endif

src/ArduinoJson/Deserialization/IteratorReader.hpp

@@ -0,0 +1,34 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+namespace ArduinoJson {
+namespace Internals {
+
+template <typename TIterator>
+class IteratorReader {
+  TIterator _ptr, _end;
+
+ public:
+  explicit IteratorReader(TIterator begin, TIterator end)
+      : _ptr(begin), _end(end) {}
+
+  bool ended() const {
+    return _ptr == _end;
+  }
+
+  char read() {
+    return char(*_ptr++);
+  }
+};
+
+template <typename TInput>
+inline IteratorReader<typename TInput::const_iterator> makeReader(
+    const TInput& input) {
+  return IteratorReader<typename TInput::const_iterator>(input.begin(),
+                                                         input.end());
+}
+}  // namespace Internals
+}  // namespace ArduinoJson

src/ArduinoJson/Deserialization/StdStreamReader.hpp

@@ -0,0 +1,40 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+
+#include <istream>
+
+namespace ArduinoJson {
+namespace Internals {
+
+class StdStreamReader {
+  std::istream& _stream;
+  char _current;
+
+ public:
+  explicit StdStreamReader(std::istream& stream)
+      : _stream(stream), _current(0) {}
+
+  bool ended() const {
+    return _stream.eof();
+  }
+
+  char read() {
+    return static_cast<char>(_stream.get());
+  }
+
+ private:
+  StdStreamReader& operator=(const StdStreamReader&);  // Visual Studio C4512
+};
+
+inline StdStreamReader makeReader(std::istream& input) {
+  return StdStreamReader(input);
+}
+}  // namespace Internals
+}  // namespace ArduinoJson
+
+#endif

src/ArduinoJson/Deserialization/deserialize.hpp

@@ -0,0 +1,82 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#include "../StringStorage/StringStorage.hpp"
+#include "./ArduinoStreamReader.hpp"
+#include "./CharPointerReader.hpp"
+#include "./DeserializationError.hpp"
+#include "./FlashStringReader.hpp"
+#include "./IteratorReader.hpp"
+#include "./StdStreamReader.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+template <template <typename, typename> class TDeserializer,
+          typename TJsonBuffer, typename TReader, typename TWriter>
+TDeserializer<TReader, TWriter> makeDeserializer(TJsonBuffer *buffer,
+                                                 TReader reader, TWriter writer,
+                                                 uint8_t nestingLimit) {
+  return TDeserializer<TReader, TWriter>(buffer, reader, writer, nestingLimit);
+}
+
+// DeserializationError deserialize(TDocument& doc, TString input);
+// TDocument = DynamicJsonDocument, StaticJsonDocument
+// TString = const std::string&, const String&
+template <template <typename, typename> class TDeserializer, typename TDocument,
+          typename TString>
+typename Internals::enable_if<!Internals::is_array<TString>::value,
+                              DeserializationError>::type
+deserialize(TDocument &doc, const TString &input) {
+  using namespace Internals;
+  return makeDeserializer<TDeserializer>(&doc.buffer(), makeReader(input),
+                                         makeStringStorage(doc.buffer(), input),
+                                         doc.nestingLimit)
+      .parse(doc.template to<JsonVariant>());
+}
+//
+// DeserializationError deserialize(TDocument& doc, TChar* input);
+// TDocument = DynamicJsonDocument, StaticJsonDocument
+// TChar* = char*, const char*, const FlashStringHelper*
+template <template <typename, typename> class TDeserializer, typename TDocument,
+          typename TChar>
+DeserializationError deserialize(TDocument &doc, TChar *input) {
+  using namespace Internals;
+  return makeDeserializer<TDeserializer>(&doc.buffer(), makeReader(input),
+                                         makeStringStorage(doc.buffer(), input),
+                                         doc.nestingLimit)
+      .parse(doc.template to<JsonVariant>());
+}
+//
+// DeserializationError deserialize(TDocument& doc, TChar* input, size_t
+// inputSize);
+// TDocument = DynamicJsonDocument, StaticJsonDocument
+// TChar* = char*, const char*, const FlashStringHelper*
+template <template <typename, typename> class TDeserializer, typename TDocument,
+          typename TChar>
+DeserializationError deserialize(TDocument &doc, TChar *input,
+                                 size_t inputSize) {
+  using namespace Internals;
+  return makeDeserializer<TDeserializer>(
+             &doc.buffer(), makeReader(input, inputSize),
+             makeStringStorage(doc.buffer(), input), doc.nestingLimit)
+      .parse(doc.template to<JsonVariant>());
+}
+//
+// DeserializationError deserialize(TDocument& doc, TStream input);
+// TDocument = DynamicJsonDocument, StaticJsonDocument
+// TStream = std::istream&, Stream&
+template <template <typename, typename> class TDeserializer, typename TDocument,
+          typename TStream>
+DeserializationError deserialize(TDocument &doc, TStream &input) {
+  using namespace Internals;
+  return makeDeserializer<TDeserializer>(&doc.buffer(), makeReader(input),
+                                         makeStringStorage(doc.buffer(), input),
+                                         doc.nestingLimit)
+      .parse(doc.template to<JsonVariant>());
+}
+}  // namespace Internals
+}  // namespace ArduinoJson