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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SYNC_MODEL_MODEL_ERROR_H_
#define COMPONENTS_SYNC_MODEL_MODEL_ERROR_H_
#include <string>
#include "base/functional/callback.h"
#include "base/location.h"
namespace syncer {
// A minimal error object that individual datatypes can report.
class ModelError {
public:
// Creates a set error object with the given location and message.
ModelError(const base::Location& location, const std::string& message);
~ModelError();
// The location of the error this object represents. Can only be called if the
// error is set.
const base::Location& location() const;
// The message explaining the error this object represents. Can only be called
// if the error is set.
const std::string& message() const;
// Returns string representation of this object, appropriate for logging.
std::string ToString() const;
private:
base::Location location_;
std::string message_;
};
// Typedef for a simple error handler callback.
using ModelErrorHandler = base::RepeatingCallback<void(const ModelError&)>;
using OnceModelErrorHandler = base::OnceCallback<void(const ModelError&)>;
} // namespace syncer
#endif // COMPONENTS_SYNC_MODEL_MODEL_ERROR_H_
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