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// Copyright 2024 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_OPTIMIZATION_GUIDE_CORE_MODEL_EXECUTION_RESPONSE_PARSER_H_
#define COMPONENTS_OPTIMIZATION_GUIDE_CORE_MODEL_EXECUTION_RESPONSE_PARSER_H_
#include <optional>
#include <string>
#include "base/functional/callback_forward.h"
#include "base/types/expected.h"
#include "components/optimization_guide/proto/common_types.pb.h"
#include "components/optimization_guide/proto/on_device_model_execution_config.pb.h"
namespace optimization_guide {
// A reason why parsing a model response failed.
enum class ResponseParsingError {
// Response did not have the expected structure, or similar parsing errors.
kFailed = 1,
// Response potentially contained disallowed PII.
kRejectedPii = 2,
// The response configuration had an error that prevented parsing.
kInvalidConfiguration = 3,
};
// A method for converting model responses to structured data.
class ResponseParser {
public:
ResponseParser();
virtual ~ResponseParser();
ResponseParser(const ResponseParser&) = delete;
ResponseParser& operator=(const ResponseParser&) = delete;
using Result = base::expected<proto::Any, ResponseParsingError>;
using ResultCallback = base::OnceCallback<void(Result)>;
// Parses redacted model output, returns parsed data via result_callback.
virtual void ParseAsync(const std::string& redacted_output,
ResultCallback result_callback) const = 0;
virtual bool SuppressParsingIncompleteResponse() const = 0;
};
} // namespace optimization_guide
#endif // COMPONENTS_OPTIMIZATION_GUIDE_CORE_MODEL_EXECUTION_RESPONSE_PARSER_H_
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