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 48 namespace google { 49 namespace protobuf { 50 namespace util { 51 namespace converter { 52 53 // Interface for error listener. 54 class LIBPROTOBUF_EXPORT ErrorListener { 55 public: ~ErrorListener()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: ErrorListener()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. 79 class LIBPROTOBUF_EXPORT NoopErrorListener : public ErrorListener { 80 public: NoopErrorListener()81 NoopErrorListener() {} ~NoopErrorListener()82 virtual ~NoopErrorListener() {} 83 InvalidName(const LocationTrackerInterface & loc,StringPiece unknown_name,StringPiece message)84 virtual void InvalidName(const LocationTrackerInterface& loc, 85 StringPiece unknown_name, StringPiece message) {} 86 InvalidValue(const LocationTrackerInterface & loc,StringPiece type_name,StringPiece value)87 virtual void InvalidValue(const LocationTrackerInterface& loc, 88 StringPiece type_name, StringPiece value) {} 89 MissingField(const LocationTrackerInterface & loc,StringPiece missing_name)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