107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
// Copyright 2022, FOSS-VG Developers and Contributers
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify it
|
|
// under the terms of the GNU Affero General Public License as published
|
|
// by the Free Software Foundation, version 3.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied
|
|
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
// See the GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// version 3 along with this program.
|
|
// If not, see https://www.gnu.org/licenses/agpl-3.0.en.html
|
|
|
|
#pragma once
|
|
|
|
#include <cstdint>
|
|
|
|
template <typename T>
|
|
struct ErrorOr {
|
|
bool isError;
|
|
uint8_t errorCode;
|
|
T value;
|
|
|
|
ErrorOr() {
|
|
this->isError = false;
|
|
this->errorCode = 0;
|
|
}
|
|
|
|
ErrorOr(T value) {
|
|
this->isError = false;
|
|
this->errorCode = 0;
|
|
this->value = value;
|
|
}
|
|
|
|
ErrorOr(bool isError, uint8_t errorCode) {
|
|
this->isError = isError;
|
|
this->errorCode = errorCode;
|
|
}
|
|
|
|
ErrorOr(bool isError, uint8_t errorCode, T value) {
|
|
this->isError = isError;
|
|
this->errorCode = errorCode;
|
|
this->value = value;
|
|
}
|
|
};
|
|
|
|
struct ErrorOrVoid {
|
|
bool isError;
|
|
uint8_t errorCode;
|
|
|
|
ErrorOrVoid() {
|
|
this->isError = false;
|
|
this->errorCode = 0;
|
|
}
|
|
|
|
ErrorOrVoid(bool isError, uint8_t errorCode) {
|
|
this->isError = isError;
|
|
this->errorCode = errorCode;
|
|
}
|
|
};
|
|
|
|
namespace ErrorCodes {
|
|
// These are all arbitrary values used to assign error codes to different
|
|
// kinds of errors.
|
|
// Using them is optional as ErrorOr<> accepts any uint8_t value as
|
|
// error code, but they are useful for readability.
|
|
|
|
// Ahh yes, very useful.
|
|
const uint8_t SUCCESS = 0;
|
|
|
|
const uint8_t OUT_OF_RANGE = 1;
|
|
// like OUT_OF_RANGE but when going out of bounds in a non-predetermined way
|
|
const uint8_t OVERRUN = 2;
|
|
|
|
const uint8_t NOT_PRESENT = 3;
|
|
|
|
const uint8_t WRONG_USAGE = 4;
|
|
|
|
// when dealing with maps
|
|
const uint8_t UNKNOWN_KEY = 5;
|
|
|
|
//mismatched size in java strings
|
|
const uint8_t MISMATCHEDSIZE = 6;
|
|
|
|
const uint8_t NOT_YET_KNOWN = 7;
|
|
|
|
const uint8_t INVALID_TYPE = 8;
|
|
|
|
const uint8_t FILE_NOT_OPEN = 9;
|
|
const uint8_t FILE_NOT_FOUND = 10;
|
|
|
|
// when performing an operation that would technically be valid but must
|
|
// never be performed (like deleting an end tag from an NBT compound)
|
|
const uint8_t NOT_ALLOWED = 11;
|
|
|
|
const uint8_t MIXED_TYPES = 12;
|
|
|
|
// when too much data is available
|
|
const uint8_t OVERFLOW = 13;
|
|
|
|
const uint8_t UNIMPLEMENTED = 254;
|
|
|
|
const uint8_t UNKNOWN = 255;
|
|
}
|