1 // Copyright 2021 The Tint Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef FUZZERS_TINT_AST_FUZZER_MUTATION_FINDERS_REPLACE_IDENTIFIERS_H_ 16 #define FUZZERS_TINT_AST_FUZZER_MUTATION_FINDERS_REPLACE_IDENTIFIERS_H_ 17 18 #include "fuzzers/tint_ast_fuzzer/mutation_finder.h" 19 20 namespace tint { 21 namespace fuzzers { 22 namespace ast_fuzzer { 23 24 /// Looks for opportunities to apply `MutationReplaceIdentifier`. 25 /// 26 /// Concretely, for each variable in the module, tries to replace its users with 27 /// the uses of some other variables. 28 class MutationFinderReplaceIdentifiers : public MutationFinder { 29 public: 30 MutationList FindMutations( 31 const tint::Program& program, 32 NodeIdMap* node_id_map, 33 ProbabilityContext* probability_context) const override; 34 uint32_t GetChanceOfApplyingMutation( 35 ProbabilityContext* probability_context) const override; 36 }; 37 38 } // namespace ast_fuzzer 39 } // namespace fuzzers 40 } // namespace tint 41 42 #endif // FUZZERS_TINT_AST_FUZZER_MUTATION_FINDERS_REPLACE_IDENTIFIERS_H_ 43