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// ArduinoJson - https://arduinojson.org
// Copyright Benoit Blanchon 2014-2021
// MIT License
#pragma once
#include "lib/ArduinoJson/Namespace.hpp"
#include "lib/ArduinoJson/Polyfills/preprocessor.hpp"
#include "lib/ArduinoJson/Polyfills/static_array.hpp"
#if ARDUINOJSON_ENABLE_STD_STREAM
#include <ostream>
#endif
namespace ARDUINOJSON_NAMESPACE {
class DeserializationError {
// safe bool idiom
typedef void (DeserializationError::*bool_type)() const;
void safeBoolHelper() const {}
public:
enum Code {
Ok,
EmptyInput,
IncompleteInput,
InvalidInput,
NoMemory,
TooDeep
};
DeserializationError() {}
DeserializationError(Code c) : _code(c) {}
// Compare with DeserializationError
friend bool operator==(const DeserializationError& lhs,
const DeserializationError& rhs) {
return lhs._code == rhs._code;
}
friend bool operator!=(const DeserializationError& lhs,
const DeserializationError& rhs) {
return lhs._code != rhs._code;
}
// Compare with Code
friend bool operator==(const DeserializationError& lhs, Code rhs) {
return lhs._code == rhs;
}
friend bool operator==(Code lhs, const DeserializationError& rhs) {
return lhs == rhs._code;
}
friend bool operator!=(const DeserializationError& lhs, Code rhs) {
return lhs._code != rhs;
}
friend bool operator!=(Code lhs, const DeserializationError& rhs) {
return lhs != rhs._code;
}
// Behaves like a bool
operator bool_type() const {
return _code != Ok ? &DeserializationError::safeBoolHelper : 0;
}
friend bool operator==(bool value, const DeserializationError& err) {
return static_cast<bool>(err) == value;
}
friend bool operator==(const DeserializationError& err, bool value) {
return static_cast<bool>(err) == value;
}
friend bool operator!=(bool value, const DeserializationError& err) {
return static_cast<bool>(err) != value;
}
friend bool operator!=(const DeserializationError& err, bool value) {
return static_cast<bool>(err) != value;
}
// Returns internal enum, useful for switch statement
Code code() const {
return _code;
}
const char* c_str() const {
static const char* messages[] = {
"Ok", "EmptyInput", "IncompleteInput",
"InvalidInput", "NoMemory", "TooDeep"};
ARDUINOJSON_ASSERT(static_cast<size_t>(_code) <
sizeof(messages) / sizeof(messages[0]));
return messages[_code];
}
#if ARDUINOJSON_ENABLE_PROGMEM
const __FlashStringHelper* f_str() const {
ARDUINOJSON_DEFINE_STATIC_ARRAY(char, s0, "Ok");
ARDUINOJSON_DEFINE_STATIC_ARRAY(char, s1, "EmptyInput");
ARDUINOJSON_DEFINE_STATIC_ARRAY(char, s2, "IncompleteInput");
ARDUINOJSON_DEFINE_STATIC_ARRAY(char, s3, "InvalidInput");
ARDUINOJSON_DEFINE_STATIC_ARRAY(char, s4, "NoMemory");
ARDUINOJSON_DEFINE_STATIC_ARRAY(char, s5, "TooDeep");
ARDUINOJSON_DEFINE_STATIC_ARRAY(
const char*, messages, ARDUINOJSON_EXPAND6({s0, s1, s2, s3, s4, s5}));
return ARDUINOJSON_READ_STATIC_ARRAY(const __FlashStringHelper*, messages,
_code);
}
#endif
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_NAMESPACE
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