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 #include <string> 37 #include <vector> 38 39 #include <google/protobuf/stubs/callback.h> 40 #include <google/protobuf/stubs/common.h> 41 #include <google/protobuf/stubs/logging.h> 42 #include <google/protobuf/util/internal/location_tracker.h> 43 #include <google/protobuf/stubs/strutil.h> 44 45 // Must be included last. 46 #include <google/protobuf/port_def.inc> 47 48 namespace google { 49 namespace protobuf { 50 namespace util { 51 namespace converter { 52 53 // Interface for error listener. 54 class PROTOBUF_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 invalid_name, 61 StringPiece message) = 0; 62 63 // Reports an invalid value for a field. 64 virtual void InvalidValue(const LocationTrackerInterface& loc, 65 StringPiece type_name, 66 StringPiece value) = 0; 67 68 // Reports a missing required field. 69 virtual void MissingField(const LocationTrackerInterface& loc, 70 StringPiece missing_name) = 0; 71 72 protected: ErrorListener()73 ErrorListener() {} 74 75 private: 76 // Do not add any data members to this class. 77 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ErrorListener); 78 }; 79 80 // An error listener that ignores all errors. 81 class PROTOBUF_EXPORT NoopErrorListener : public ErrorListener { 82 public: NoopErrorListener()83 NoopErrorListener() {} ~NoopErrorListener()84 ~NoopErrorListener() override {} 85 InvalidName(const LocationTrackerInterface & loc,StringPiece invalid_name,StringPiece message)86 void InvalidName(const LocationTrackerInterface& loc, 87 StringPiece invalid_name, 88 StringPiece message) override {} 89 InvalidValue(const LocationTrackerInterface & loc,StringPiece type_name,StringPiece value)90 void InvalidValue(const LocationTrackerInterface& loc, 91 StringPiece type_name, 92 StringPiece value) override {} 93 MissingField(const LocationTrackerInterface & loc,StringPiece missing_name)94 void MissingField(const LocationTrackerInterface& loc, 95 StringPiece missing_name) override {} 96 97 private: 98 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(NoopErrorListener); 99 }; 100 101 102 } // namespace converter 103 } // namespace util 104 } // namespace protobuf 105 } // namespace google 106 107 #include <google/protobuf/port_undef.inc> 108 109 #endif // GOOGLE_PROTOBUF_UTIL_CONVERTER_ERROR_LISTENER_H__ 110