| //===- AsmState.h - State class for AsmPrinter ------------------*- C++ -*-===// |
| // |
| // Part of the MLIR Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the AsmState class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef MLIR_IR_ASMSTATE_H_ |
| #define MLIR_IR_ASMSTATE_H_ |
| |
| #include <memory> |
| |
| namespace mlir { |
| class Operation; |
| |
| namespace detail { |
| class AsmStateImpl; |
| } // end namespace detail |
| |
| /// This class provides management for the lifetime of the state used when |
| /// printing the IR. It allows for alleviating the cost of recomputing the |
| /// internal state of the asm printer. |
| /// |
| /// The IR should not be mutated in-between invocations using this state, and |
| /// the IR being printed must not be an parent of the IR originally used to |
| /// initialize this state. This means that if a child operation is provided, a |
| /// parent operation cannot reuse this state. |
| class AsmState { |
| public: |
| /// Initialize the asm state at the level of the given operation. |
| AsmState(Operation *op); |
| ~AsmState(); |
| |
| /// Return an instance of the internal implementation. Returns nullptr if the |
| /// state has not been initialized. |
| detail::AsmStateImpl &getImpl() { return *impl; } |
| |
| private: |
| AsmState() = delete; |
| |
| /// A pointer to allocated storage for the impl state. |
| std::unique_ptr<detail::AsmStateImpl> impl; |
| }; |
| |
| } // end namespace mlir |
| |
| #endif // MLIR_IR_ASMSTATE_H_ |