1// Protocol Buffers - Google's data interchange format 2// Copyright 2008 Google Inc. All rights reserved. 3// https://developers.google.com/protocol-buffers/ 4// 5// Redistribution and use in source and binary forms, with or without 6// modification, are permitted provided that the following conditions are 7// met: 8// 9// * Redistributions of source code must retain the above copyright 10// notice, this list of conditions and the following disclaimer. 11// * Redistributions in binary form must reproduce the above 12// copyright notice, this list of conditions and the following disclaimer 13// in the documentation and/or other materials provided with the 14// distribution. 15// * Neither the name of Google Inc. nor the names of its 16// contributors may be used to endorse or promote products derived from 17// this software without specific prior written permission. 18// 19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31#ifndef GOOGLE_PROTOBUF_UTIL_CONVERTER_ERROR_LISTENER_H__ 32#define GOOGLE_PROTOBUF_UTIL_CONVERTER_ERROR_LISTENER_H__ 33 34#include <algorithm> 35#include <memory> 36#ifndef _SHARED_PTR_H 37#include <google/protobuf/stubs/shared_ptr.h> 38#endif 39#include <string> 40#include <vector> 41 42#include <google/protobuf/stubs/callback.h> 43#include <google/protobuf/stubs/common.h> 44#include <google/protobuf/stubs/logging.h> 45#include <google/protobuf/util/internal/location_tracker.h> 46#include <google/protobuf/stubs/stringpiece.h> 47 48namespace google { 49namespace protobuf { 50namespace util { 51namespace converter { 52 53// Interface for error listener. 54class LIBPROTOBUF_EXPORT ErrorListener { 55 public: 56 virtual ~ErrorListener() {} 57 58 // Reports an invalid name at the given location. 59 virtual void InvalidName(const LocationTrackerInterface& loc, 60 StringPiece unknown_name, StringPiece message) = 0; 61 62 // Reports an invalid value for a field. 63 virtual void InvalidValue(const LocationTrackerInterface& loc, 64 StringPiece type_name, StringPiece value) = 0; 65 66 // Reports a missing required field. 67 virtual void MissingField(const LocationTrackerInterface& loc, 68 StringPiece missing_name) = 0; 69 70 protected: 71 ErrorListener() {} 72 73 private: 74 // Do not add any data members to this class. 75 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ErrorListener); 76}; 77 78// An error listener that ignores all errors. 79class LIBPROTOBUF_EXPORT NoopErrorListener : public ErrorListener { 80 public: 81 NoopErrorListener() {} 82 virtual ~NoopErrorListener() {} 83 84 virtual void InvalidName(const LocationTrackerInterface& loc, 85 StringPiece unknown_name, StringPiece message) {} 86 87 virtual void InvalidValue(const LocationTrackerInterface& loc, 88 StringPiece type_name, StringPiece value) {} 89 90 virtual void MissingField(const LocationTrackerInterface& loc, 91 StringPiece missing_name) {} 92 93 private: 94 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(NoopErrorListener); 95}; 96 97 98} // namespace converter 99} // namespace util 100} // namespace protobuf 101 102} // namespace google 103#endif // GOOGLE_PROTOBUF_UTIL_CONVERTER_ERROR_LISTENER_H__ 104