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- // Copyright 2019 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef CRDTP_PARSER_HANDLER_H_
- #define CRDTP_PARSER_HANDLER_H_
- #include <cstdint>
- #include "span.h"
- #include "status.h"
- namespace crdtp {
- // Handler interface for parser events emitted by a streaming parser.
- // See cbor::NewCBOREncoder, cbor::ParseCBOR, json::NewJSONEncoder,
- // json::ParseJSON.
- class ParserHandler {
- public:
- virtual ~ParserHandler() = default;
- virtual void HandleMapBegin() = 0;
- virtual void HandleMapEnd() = 0;
- virtual void HandleArrayBegin() = 0;
- virtual void HandleArrayEnd() = 0;
- virtual void HandleString8(span<uint8_t> chars) = 0;
- virtual void HandleString16(span<uint16_t> chars) = 0;
- virtual void HandleBinary(span<uint8_t> bytes) = 0;
- virtual void HandleDouble(double value) = 0;
- virtual void HandleInt32(int32_t value) = 0;
- virtual void HandleBool(bool value) = 0;
- virtual void HandleNull() = 0;
- // The parser may send one error even after other events have already
- // been received. Client code is reponsible to then discard the
- // already processed events.
- // |error| must be an eror, as in, |error.is_ok()| can't be true.
- virtual void HandleError(Status error) = 0;
- };
- } // namespace crdtp
- #endif // CRDTP_PARSER_HANDLER_H_
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