| // Copyright 2022 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_IR_INSTRUCTION_H_ |
| #define SRC_TINT_IR_INSTRUCTION_H_ |
| |
| #include "src/tint/ir/value.h" |
| #include "src/tint/symbol_table.h" |
| #include "src/tint/utils/castable.h" |
| #include "src/tint/utils/string_stream.h" |
| |
| namespace tint::ir { |
| |
| /// An instruction in the IR. |
| class Instruction : public utils::Castable<Instruction> { |
| public: |
| Instruction(const Instruction& instr) = delete; |
| Instruction(Instruction&& instr) = delete; |
| /// Destructor |
| ~Instruction() override; |
| |
| Instruction& operator=(const Instruction& instr) = delete; |
| Instruction& operator=(Instruction&& instr) = delete; |
| |
| /// @returns the result value for the instruction |
| Value* Result() const { return result_; } |
| |
| /// Write the instruction to the given stream |
| /// @param out the stream to write to |
| /// @returns the stream |
| virtual utils::StringStream& ToString(utils::StringStream& out) const = 0; |
| |
| protected: |
| /// Constructor |
| /// @param result the result value |
| explicit Instruction(Value* result); |
| |
| private: |
| Value* result_ = nullptr; |
| }; |
| |
| } // namespace tint::ir |
| |
| #endif // SRC_TINT_IR_INSTRUCTION_H_ |