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/*
* Copyright 2017 The Native Object Protocols Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIBNOP_INCLUDE_NOP_STATUS_H_
#define LIBNOP_INCLUDE_NOP_STATUS_H_
#include <string>
#include <nop/types/result.h>
//
// Status<T> is the return type used by the serialization engine to return
// either success and a value or an error indicating the nature of the failure.
// This type is based on the more general Result<ErrorEnum, T>.
//
namespace nop {
enum class ErrorStatus {
None, // 0
UnexpectedEncodingType, // 1
UnexpectedHandleType, // 2
UnexpectedVariantType, // 3
InvalidContainerLength, // 4
InvalidMemberCount, // 5
InvalidStringLength, // 6
InvalidTableHash, // 7
InvalidHandleReference, // 8
InvalidHandleValue, // 9
InvalidInterfaceMethod, // 10
DuplicateTableEntry, // 11
ReadLimitReached, // 12
WriteLimitReached, // 13
StreamError, // 14
ProtocolError, // 15
IOError, // 16
SystemError, // 17
DebugError, // 18
};
template <typename T>
struct Status : Result<ErrorStatus, T> {
using Result<ErrorStatus, T>::Result;
const char* GetErrorMessage() const {
switch (this->error()) {
case ErrorStatus::None:
return "No Error";
case ErrorStatus::UnexpectedEncodingType:
return "Unexpected Encoding Type";
case ErrorStatus::UnexpectedHandleType:
return "Unexpected Handle Type";
case ErrorStatus::UnexpectedVariantType:
return "Unexpected Variant Type";
case ErrorStatus::InvalidContainerLength:
return "Invalid Container Length";
case ErrorStatus::InvalidMemberCount:
return "Invalid Member Count";
case ErrorStatus::InvalidStringLength:
return "Invalid String Length";
case ErrorStatus::InvalidTableHash:
return "Invalid Table Hash";
case ErrorStatus::InvalidHandleReference:
return "Invalid Handle Reference";
case ErrorStatus::InvalidHandleValue:
return "Invalid Handle Value";
case ErrorStatus::InvalidInterfaceMethod:
return "Invalid Interface Method";
case ErrorStatus::DuplicateTableEntry:
return "Duplicate Table Hash";
case ErrorStatus::ReadLimitReached:
return "Read Limit Reached";
case ErrorStatus::WriteLimitReached:
return "Write Limit Reached";
case ErrorStatus::StreamError:
return "Stream Error";
case ErrorStatus::ProtocolError:
return "Protocol Error";
case ErrorStatus::IOError:
return "IO Error";
case ErrorStatus::SystemError:
return "System Error";
case ErrorStatus::DebugError:
return "Debug Error";
default:
return "Unknown Error";
}
}
};
} // namespace nop
#endif // LIBNOP_INCLUDE_NOP_STATUS_H_
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