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Diffstat (limited to 'include/lib/ArduinoJson/Deserialization/DeserializationError.hpp')
-rw-r--r-- | include/lib/ArduinoJson/Deserialization/DeserializationError.hpp | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/include/lib/ArduinoJson/Deserialization/DeserializationError.hpp b/include/lib/ArduinoJson/Deserialization/DeserializationError.hpp new file mode 100644 index 0000000..7b61711 --- /dev/null +++ b/include/lib/ArduinoJson/Deserialization/DeserializationError.hpp @@ -0,0 +1,122 @@ +// ArduinoJson - https://arduinojson.org +// Copyright Benoit Blanchon 2014-2021 +// MIT License + +#pragma once + +#include <ArduinoJson/Namespace.hpp> +#include <ArduinoJson/Polyfills/preprocessor.hpp> +#include <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 |