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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 V8_CRDTP_PARSER_HANDLER_H_ #define V8_CRDTP_PARSER_HANDLER_H_ #include <cstdint> #include "span.h" #include "status.h" namespace v8_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 v8_crdtp #endif // V8_CRDTP_PARSER_HANDLER_H_