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// Copyright 2018 The Amber 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 AMBER_RESULT_H_
#define AMBER_RESULT_H_
#include <string>
#include <vector>
namespace amber {
/// Holds the results for an operation.
class Result {
public:
/// Creates a result which succeeded.
Result();
/// Creates a result which failed and will return |err|.
explicit Result(const std::string& err);
Result(const Result&);
~Result();
Result& operator=(const Result&);
/// Returns true if the result is a success.
bool IsSuccess() const { return succeeded_; }
/// Returns the error string if |IsSuccess| is false.
const std::string& Error() const { return error_; }
private:
bool succeeded_;
std::string error_;
};
} // namespace amber
#endif // AMBER_RESULT_H_
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