| // Copyright 2021 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef SRC_TINT_FUZZERS_TINT_AST_FUZZER_MUTATIONS_WRAP_UNARY_OPERATOR_H_ |
| #define SRC_TINT_FUZZERS_TINT_AST_FUZZER_MUTATIONS_WRAP_UNARY_OPERATOR_H_ |
| |
| #include <vector> |
| |
| #include "src/tint/fuzzers/tint_ast_fuzzer/mutation.h" |
| |
| #include "src/tint/ast/unary_op.h" |
| #include "src/tint/sem/variable.h" |
| |
| namespace tint::fuzzers::ast_fuzzer { |
| |
| /// @see MutationWrapUnaryOperator::Apply |
| class MutationWrapUnaryOperator : public Mutation { |
| public: |
| /// @brief Constructs an instance of this mutation from a protobuf message. |
| /// @param message - protobuf message |
| explicit MutationWrapUnaryOperator(protobufs::MutationWrapUnaryOperator message); |
| |
| /// @brief Constructor. |
| /// @param expression_id - the id of an expression. |
| /// @param fresh_id - a fresh id for the created expression node with |
| /// unary operator wrapper. |
| /// @param unary_op_wrapper - a `ast::UnaryOp` instance. |
| MutationWrapUnaryOperator(uint32_t expression_id, |
| uint32_t fresh_id, |
| ast::UnaryOp unary_op_wrapper); |
| |
| /// @copybrief Mutation::IsApplicable |
| /// |
| /// The mutation is applicable iff: |
| /// - `expression_id` must refer to a valid expression that can be wrapped |
| /// with unary operator. |
| /// - `fresh_id` must be fresh. |
| /// - `unary_op_wrapper` is a unary expression that is valid based on the |
| /// type of the given expression. |
| /// |
| /// @copydetails Mutation::IsApplicable |
| bool IsApplicable(const tint::Program& program, const NodeIdMap& node_id_map) const override; |
| |
| /// @copybrief Mutation::Apply |
| /// |
| /// Wrap an expression in a unary operator that is valid based on |
| /// the type of the expression. |
| /// |
| /// @copydetails Mutation::Apply |
| void Apply(const NodeIdMap& node_id_map, |
| tint::CloneContext* clone_context, |
| NodeIdMap* new_node_id_map) const override; |
| |
| protobufs::Mutation ToMessage() const override; |
| |
| /// Return list of unary operator wrappers allowed for the given |
| /// expression. |
| /// @param expr - an `ast::Expression` instance from node id map. |
| /// @return a list of unary operators. |
| static std::vector<ast::UnaryOp> GetValidUnaryWrapper(const sem::ValueExpression& expr); |
| |
| private: |
| protobufs::MutationWrapUnaryOperator message_; |
| }; |
| |
| } // namespace tint::fuzzers::ast_fuzzer |
| |
| #endif // SRC_TINT_FUZZERS_TINT_AST_FUZZER_MUTATIONS_WRAP_UNARY_OPERATOR_H_ |