| // Copyright 2021 The Dawn & Tint Authors |
| // |
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| #ifndef SRC_TINT_FUZZERS_TINT_AST_FUZZER_MUTATIONS_CHANGE_UNARY_OPERATOR_H_ |
| #define SRC_TINT_FUZZERS_TINT_AST_FUZZER_MUTATIONS_CHANGE_UNARY_OPERATOR_H_ |
| |
| #include "src/tint/fuzzers/tint_ast_fuzzer/mutation.h" |
| #include "src/tint/lang/core/unary_op.h" |
| #include "src/tint/lang/wgsl/sem/variable.h" |
| |
| namespace tint::fuzzers::ast_fuzzer { |
| |
| /// @see MutationChangeUnaryOperator::Apply |
| class MutationChangeUnaryOperator : public Mutation { |
| public: |
| /// @brief Constructs an instance of this mutation from a protobuf message. |
| /// @param message - protobuf message |
| explicit MutationChangeUnaryOperator(protobufs::MutationChangeUnaryOperator message); |
| |
| /// @brief Constructor. |
| /// @param unary_expr_id - the id of the `ast::UnaryOpExpression` instance |
| /// to change its operator. |
| /// @param new_operator - A new unary operator for the unary expression |
| /// specified by `expression_id`. |
| MutationChangeUnaryOperator(uint32_t unary_expr_id, core::UnaryOp new_operator); |
| |
| /// @copybrief Mutation::IsApplicable |
| /// |
| /// The mutation is applicable if and only if: |
| /// - `expression_id` is an id of an `ast::UnaryOpExpression`, that references |
| /// a valid unary expression. |
| /// - `new_unary_op` is a valid unary operator of type `core::UnaryOp` |
| /// to the target expression. |
| /// |
| /// @copydetails Mutation::IsApplicable |
| bool IsApplicable(const tint::Program& program, const NodeIdMap& node_id_map) const override; |
| |
| /// @copybrief Mutation::Apply |
| /// |
| /// Replaces the operator of an unary op expression with `expression_id` |
| /// with a new unary operator specified by `new_unary_op'. The modified |
| /// expression preserves the same type as the original expression. |
| /// |
| /// @copydetails Mutation::Apply |
| void Apply(const NodeIdMap& node_id_map, |
| tint::program::CloneContext& clone_context, |
| NodeIdMap* new_node_id_map) const override; |
| |
| protobufs::Mutation ToMessage() const override; |
| |
| /// Toggles between the complement and negate unary operators. |
| /// @param original_op - a complement or negation unary operator. |
| /// @return the other operator. |
| static core::UnaryOp ToggleOperator(const core::UnaryOp& original_op); |
| |
| private: |
| protobufs::MutationChangeUnaryOperator message_; |
| }; |
| |
| } // namespace tint::fuzzers::ast_fuzzer |
| |
| #endif // SRC_TINT_FUZZERS_TINT_AST_FUZZER_MUTATIONS_CHANGE_UNARY_OPERATOR_H_ |