1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef LIBTEXTCLASSIFIER_UTILS_GRAMMAR_CALLBACK_DELEGATE_H_ 18 #define LIBTEXTCLASSIFIER_UTILS_GRAMMAR_CALLBACK_DELEGATE_H_ 19 20 #include "utils/base/integral_types.h" 21 #include "utils/grammar/match.h" 22 #include "utils/grammar/rules_generated.h" 23 #include "utils/grammar/types.h" 24 25 namespace libtextclassifier3::grammar { 26 27 class Matcher; 28 29 // CallbackDelegate is an interface and default implementation used by the 30 // grammar matcher to dispatch rule matches. 31 class CallbackDelegate { 32 public: 33 virtual ~CallbackDelegate() = default; 34 35 // This is called by the matcher whenever it finds a match for a rule to 36 // which a callback is attached. MatchFound(const Match * match,const CallbackId callback_id,const int64 callback_param,Matcher * matcher)37 virtual void MatchFound(const Match* match, const CallbackId callback_id, 38 const int64 callback_param, Matcher* matcher) {} 39 }; 40 41 } // namespace libtextclassifier3::grammar 42 43 #endif // LIBTEXTCLASSIFIER_UTILS_GRAMMAR_CALLBACK_DELEGATE_H_ 44